guile/libguile/posix.c

2497 lines
69 KiB
C
Raw Normal View History

/* Copyright 1995-2014,2016-2019
Free Software Foundation, Inc.
This file is part of Guile.
Guile is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Guile is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Guile. If not, see
<https://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
Add full Unicode capability to ports and the default reader Ports are given two additional properties: a character encoding and a conversion failure strategy. These properties have getters and setters. The new properties are used to convert any locale text to/from the internal representation of strings. If unspecified, ports use a default value. The default value of these properties is held in a fluid. The default character encoding can be modified by calling setlocale. ISO-8859-1 is treated specially. Since it is a native encoding of strings, it can be processed more quickly. Source code is assumed to be ISO-8859-1 unless otherwise specified. The encoding of a source code file can be given as 'coding: XXXXX' in a magic comment at the top of a file. The C functions that deal with encoding often use a null pointer as shorthand for the native Latin-1 encoding, for efficiency's sake. * test-suite/tests/encoding-iso88591.test: new tests * test-suite/tests/encoding-iso88597.test: new tests * test-suite/tests/encoding-utf8.test: new tests * test-suite/tests/encoding-escapes.test: new tests * test-suite/tests/numbers.test: declare 'binary' encoding * test-suite/tests/ports.test: declare 'binary' encoding * test-suite/tests/r6rs-ports.test: declare 'binary' encoding * module/system/base/compile.scm (compile-file): use source-code file's self-declared encoding when compiling files * libguile/strports.c: store string ports in locale encoding (scm_strport_to_locale_u8vector, scm_call_with_output_locale_u8vector) (scm_open_input_locale_u8vector, scm_get_output_locale_u8vector): new functions * libguile/strings.h: new declaration for scm_i_string_contains_char * libguile/strings.c (scm_i_string_contains_char): new function (scm_from_stringn, scm_to_stringn): use NULL for Latin-1 (scm_from_locale_stringn, scm_to_locale_stringn): respect character encoding of input and output ports * libguile/read.h: declaration for scm_scan_for_encoding * libguile/read.c: (read_token): now takes scheme string instead of C string/length (read_complete_token): new function (scm_read_sexp, scm_read_number, scm_read_mixed_case_symbol) (scm_read_number_and_radix, scm_read_quote, scm_read_semicolon_comment) (scm_read_srfi4_vector, scm_read_bytevector, scm_read_guile_bit_vector) (scm_read_scsh_block_comment, scm_read_commented_expression) (scm_read_extended_symbol, scm_read_sharp_extension, scm_read_shart) (scm_read_expression): use scm_t_wchar for char type, use read_complete_token (scm_scan_for_encoding): new function to find a file's character encoding (scm_file_encoding): new function to find a port's character encoding * libguile/rdelim.c: don't unpack strings * libguile/print.h: declaration for modified function scm_i_charprint * libguile/print.c: use locale when printing characters and strings (scm_i_charprint): input parameter is now scm_t_wchar (scm_simple_format): don't unpack strings * libguile/posix.h: new declaration for scm_setbinary. * libguile/posix.c (scm_setlocale): set default and stdio port encodings based on the locale's character encoding (scm_setbinary): new function * libguile/ports.h (scm_t_port): add encoding and failed conversion handler to port type. Declarations for new or modified functions scm_getc, scm_unget_byte, scm_ungetc, scm_i_get_port_encoding, scm_i_set_port_encoding_x, scm_port_encoding, scm_set_port_encoding_x, scm_i_get_conversion_strategy, scm_i_set_conversion_strategy_x, scm_port_conversion_strategy, scm_set_port_conversion_strategy_x. * libguile/ports.c: assign the current ports to zero on startup so we can see if they've been set. (scm_current_input_port, scm_current_output_port, scm_current_error_port): return #f if the port is not yet initialized (scm_new_port_table_entry): set up a new port's encoding and illegal sequence handler based on the thread's current defaults (scm_i_remove_port): free port encoding name when port is removed (scm_i_mode_bits_n): now takes a scheme string instead of a c string and length. All callers changed. (SCM_MBCHAR_BUF_SIZE): new const (scm_getc): new function, since the scm_getc in inline.h is now scm_get_byte_or_eof. This pulls one codepoint from a port. (scm_lfwrite_substr, scm_lfwrite_str): now uses port's encoding (scm_unget_byte): new function, incorportaing the low-level functionality of scm_ungetc (scm_ungetc): uses scm_unget_byte * libguile/numbers.h (scm_t_wchar): compilation order problem with scm_t_wchar being use in functions in multiple headers. Forward declare scm_t_wchar. * libguile/load.c (scm_primitive_load): scan for file encoding at top of file and use it to set the load port's encoding * libguile/inline.h (scm_get_byte_or_eof): new function incorporating most of the functionality of scm_getc. * libguile/fports.c (fport_fill_input): now returns scm_t_wchar * libguile/chars.h (scm_t_wchar): avoid compilation order problem with declaration of scm_t_wchar
2009-08-25 07:54:37 -07:00
#include <uniconv.h>
#include <unistd.h>
#ifdef HAVE_SCHED_H
# include <sched.h>
#endif
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#ifdef LIBC_H_WITH_UNISTD_H
# include <libc.h>
#endif
2001-06-26 17:53:09 +00:00
#ifdef HAVE_PWD_H
# include <pwd.h>
2001-06-26 17:53:09 +00:00
#endif
#ifdef HAVE_IO_H
# include <io.h>
#endif
#ifdef __MINGW32__
# include "posix-w32.h"
2001-06-26 17:53:09 +00:00
#endif
#include "async.h"
#include "bitvectors.h"
#include "dynwind.h"
#include "extensions.h"
#include "feature.h"
#include "finalizers.h"
#include "fports.h"
#include "gettext.h"
#include "gsubr.h"
#include "list.h"
#include "modules.h"
#include "numbers.h"
#include "pairs.h"
#include "scmsigs.h"
#include "srfi-13.h"
#include "srfi-14.h"
#include "strings.h"
#include "symbols.h"
#include "syscalls.h"
#include "threads.h"
#include "values.h"
#include "vectors.h"
#include "version.h"
#include "posix.h"
#if HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
#ifndef WEXITSTATUS
# define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
#endif
#ifndef WIFEXITED
# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
#endif
#include <signal.h>
2001-06-26 17:53:09 +00:00
#ifdef HAVE_GRP_H
#include <grp.h>
2001-06-26 17:53:09 +00:00
#endif
#ifdef HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
2001-06-26 17:53:09 +00:00
#endif
#ifdef HAVE_SETLOCALE
#include <locale.h>
#endif
2006-11-18 18:14:55 +00:00
#if (defined HAVE_NEWLOCALE) && (defined HAVE_STRCOLL_L)
# define USE_GNU_LOCALE_API
#endif
2007-01-31 20:58:20 +00:00
#if (defined USE_GNU_LOCALE_API) && (defined HAVE_XLOCALE_H)
# include <xlocale.h>
#endif
#ifdef HAVE_CRYPT_H
# include <crypt.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h> /* for MAXHOSTNAMELEN on Solaris */
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h> /* for MAXHOSTNAMELEN */
#endif
#if HAVE_SYS_RESOURCE_H
# include <sys/resource.h>
#endif
#include <sys/file.h> /* from Gnulib */
/* Some Unix systems don't define these. CPP hair is dangerous, but
this seems safe enough... */
#ifndef R_OK
#define R_OK 4
#endif
#ifndef W_OK
#define W_OK 2
#endif
#ifndef X_OK
#define X_OK 1
#endif
#ifndef F_OK
#define F_OK 0
#endif
1996-09-04 06:34:02 +00:00
2006-10-09 23:40:48 +00:00
/* No prototype for this on Solaris 10. The man page says it's in
<unistd.h> ... but it lies. */
#if ! HAVE_DECL_SETHOSTNAME
int sethostname (char *name, size_t namelen);
#endif
#if defined HAVE_GETLOGIN && !HAVE_DECL_GETLOGIN
/* MinGW doesn't supply this decl; see
http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00030.html for more
details. */
char *getlogin (void);
#endif
1996-09-04 06:34:02 +00:00
/* On NextStep, <utime.h> doesn't define struct utime, unless we
#define _POSIX_SOURCE before #including it. I think this is less
of a kludge than defining struct utimbuf ourselves. */
#ifdef UTIMBUF_NEEDS_POSIX
#define _POSIX_SOURCE
#endif
#ifdef HAVE_SYS_UTIME_H
#include <sys/utime.h>
#endif
#ifdef HAVE_UTIME_H
#include <utime.h>
#endif
/* Please don't add any more #includes or #defines here. The hack
above means that _POSIX_SOURCE may be #defined, which will
encourage header files to do strange things.
FIXME: Maybe should undef _POSIX_SOURCE after it's done its job.
FIXME: Probably should do all the includes first, then all the fallback
declarations and defines, in case things are not in the header we
imagine. */
/* Two often used patterns
*/
#define WITH_STRING(str,cstr,code) \
do { \
char *cstr = scm_to_locale_string (str); \
code; \
free (cstr); \
} while (0)
#define STRING_SYSCALL(str,cstr,code) \
do { \
int eno; \
char *cstr = scm_to_locale_string (str); \
SCM_SYSCALL (code); \
eno = errno; free (cstr); errno = eno; \
} while (0)
SCM_SYMBOL (sym_read_pipe, "read pipe");
SCM_SYMBOL (sym_write_pipe, "write pipe");
SCM_DEFINE (scm_pipe, "pipe", 0, 0, 0,
(),
"Return a newly created pipe: a pair of ports which are linked\n"
"together on the local machine. The @emph{car} is the input\n"
"port and the @emph{cdr} is the output port. Data written (and\n"
"flushed) to the output port can be read from the input port.\n"
"Pipes are commonly used for communication with a newly forked\n"
"child process. The need to flush the output port can be\n"
"avoided by making it unbuffered using @code{setvbuf}.\n"
"\n"
"Writes occur atomically provided the size of the data in bytes\n"
"is not greater than the value of @code{PIPE_BUF}. Note that\n"
"the output port is likely to block if too much data (typically\n"
"equal to @code{PIPE_BUF}) has been written but not yet read\n"
"from the input port.")
#define FUNC_NAME s_scm_pipe
{
int fd[2], rv;
SCM p_rd, p_wt;
rv = pipe (fd);
if (rv)
SCM_SYSERROR;
* ioext.c (scm_do_read_line): Rewritten to use memchr to find the newline. A bit faster, and definitely hairier. (scm_read_line): Count newlines here instead. * strings.c (scm_take_str): New function. (scm_take0str): Reimplement in terms of scm_take_str. * strings.h (scm_take_str): New declaration. * ioext.c (scm_read_line): Use scm_take_str, to avoid copying the string. Add some simple-minded support for line buffered ports. * ports.h (SCM_BUFLINE): New flag for ports. * init.c (scm_init_standard_ports): Request line-buffering on the standard output port. * * ports.c (scm_mode_bits): Recognize 'l' as a request for line buffering. (scm_putc, scm_puts, scm_lfwrite): If the port is line-buffered, and there's a newline to be written, flush the port. * ports.c: (scm_lseek): clear buffers even if just reading current position. * fports.c (local_fclose): call local_fflush unconditionally. (various): don't use the scm_must... memory procs. * ports.h (scm_port): make read_pos a pointer to const. strports.c: take care of rw_active and rw_randow. fports.c: scm_fport_drain_input: removed. do it all in ports.c. strports.c (scm_mkstrport): check that pos is reasonable. ioext.c (scm_ftell, scm_fseek): use lseek. (SCM_CLEAR_BUFFERS): macro deleted. ioext.c (redirect_port: use ptob fflush, read_flush. ports.h (scm_ptobfuns): add ftruncate. ports.c (scm_newptob): set ftruncate. adjust ptob tables. * ports.c (scm_ftruncate): new procedure. fports.c (local_ftrunate), strports.c (str_ftruncate): new procs. strports.c (st_seek, st_grow_port): new procs. fports.h (scm_port): change size types from int to off_t. ports.c (scm_init_ports): initialise the seek symbols here instead of in ioext.c. strports.c (scm_call_with_output_string): start with an empty string, so seek and ftruncate can be used. * ports.h (scm_ptobfuns): add a read_flush procedure which is the equivalent to fflush for the read buffer. * ports.c (scm_newptob): set read_flush. ports.c (void_port_ptob): set read_flush. fports.c (local_read_flush): new proc. add to ptob. strport.c (st_read_flush): likewise. vport.c (sf_read_flush): likewise. fports.h (struct scm_fport): remove random member. there's nothing left but fdes. leaving it as a struct to allow for future changes. fports.c: replace usage of scm_fport::random with scm_port::rw_random. ports.c: (scm_putc, scm_puts, scm_lfwrite): call the read_flush ptob proc if the read buffer is filled. * ports.h (scm_port): add a rw_random member and replace reading and writing members with rw_active member. SCM_PORT_READ/SCM_PORT_WRITE: new values. * ports.h (struct scm_port_table): add writing and reading members to replace write_needs_seek: it isn't good enough for non-fports. ports.c, ioext.c, fports.c: corresponding changes. (struct scm_port_table): give it a typedef and rename to scm_port. ports.c, fports.c, strports.c, vports.c, ioext.c, ports.h: corresponding changes. * ports.c (scm_newptob): bugfix: set seek member. * * (scm_lseek): new procedure, using code from ioext.c:scm_fseek and generalised to all port types. * scmsigs.c (scm_init_scmsigs): set the SA_RESTART flag for all signals (it was only being done for handlers installed from Scheme). Otherwise (for example) SIGSTOP followed by SIGCONT on an interpreter waiting for input caused an EINTR error from read. * ports.h (struct scm_port_table): make all the char members unsigned, so they convert to int without becoming negative if large. * fports.c (scm_fdes_wait_for_input): forgot to check compilation with threads enabled. rename this procedure to fport_wait_for_input and take a port instead of a fdes. use scm_fport_input_waiting_p instead of scm_fdes_waiting_p. * readline.c (scm_readline): Applied a patch from Greg Harvey to get readline support working again: use fdopen to get FILE objects. * gc.c (scm_init_storage): install an atexit proc to flush the ports. (cleanup): the new proc. it sets a global variable which can be checked by the ptob flush procs to avoid trying to throw exceptions during exit. not very pleasant but it seems more reliable. * fports.c (local_fflush): check terminating variable and if set don't throw exception. * CHECKME: that the atexit proc is installed if unexec used. * throw.c (scm_handle_by_message): don't flush all ports here. it still causes bus errors. * fports.h (SCM_FPORT_CLEAR_BUFFERS): rename to SCM_CLEAR_BUFFERS and move to ioext.c. * fports.c (scm_fdes_waiting_p): merged into fport_input_waiting_p. * ports.c (scm_char_ready_p): check the port buffer and call the ptob entry if needed. * ports.h (scm_ptobfuns): input_waiting_p added. change all the ptob initialisers. use it in char-ready * ioext.c (scm_do_read_line): moved from ports.c. make it static. * vports.c (sfflush): modified to write a char (since softports currently use shortbuf.) * fports.c (scm_standard_stream_to_port): moved to init.c and made static. * init.c (scm_init_standard_ports): make stdout and stderr unbuffered if connected to a terminal. with stdio they were line-buffered by default. * ports.h (scm_ptobfuns): change fflush return to void. change flush proc definitions. * strports.c (scm_call_with_output_string): get size from buffer instead of port stream. (scm_strprint_obj): likewise. (st_flush): new proc. * ports.h (struct scm_port_table): added write_end member, as an optimisation. set it where write_buf_size is set. * ports.h (struct scm_port_table): change stream from void * back to SCM. SCM presumably must be large enough to hold a pointer (and probably vice versa but who knows.) (SCM_SSTREAM): deleted. change users back to SCM_STREAM. (scm_puts): rewritten * fports.c (local_ffwrite, local_fputs): removed. * strports.c (stputc, stputs, stwrite): dyked out (FIXME) * vports.c (sfputc, sfputs, sfwrite) likewise. * ports.c (write_void_port, puts_void_port): removed. (putc_void_port, getc_void_port, fgets_void_port): likewise. * ports.c (scm_lfwrite): rewritten using fport.c version. * fports.c (local_fputc): deleted. * ports.c (scm_add_to_port_table): initialise write_needs_seek. * ports.h (scm_ptobfuns): add seek function pointer. * fports.c: set it to local_seek, new procedure. * fports.h (SCM_MAYBE_DRAIN_INPUT): moved to ports.c. use ptob for seek. take ptob instead of fport arg. * ports.h (struct scm_port_table): new member write_needs_seek, replaces reading member in fport struct. * vports.c (sfgetc): store the getted char into the buffer. rename to sf_fill_buffer and install it for fill-buffer in ptob. the Scheme interface is still a procedure that gets a char. (scm_make_soft_port): set up the port buffer (shortbuf). * fports.c (local_fgetc, local_fgets): deleted. * strports.c (stgetc): likewise. * ports.c: scm_generic_fgets: likewise. * ports.h (scm_ptobfuns): add fill_buffer. * ports.c (scm_newptob): assign it. * strports.c (scm_mkstrport): set up the buffer. put just the string into the stream, not cons (pos stream). (stfill_buffer): new proc. * ports.h: fport buffer moved into port table: to be used for all port types. * throw.c (scm_handle_by_message): flush ports at exit. * socket.c (scm_sock_fd_to_port): use scm_fdes_to_port. (scm_getsockopt, scm_setsockopt, scm_shutdown, scm_connect, scm_bind, scm_listen, scm_accept, scm_getsockname, scm_getpeername, scm_recv, scm_send, scm_recvfrom, scm_sendto, use SCM_FPORT_FDES. use SCM_OPFPORTP not SCM_FPORTP. * posix.c (scm_getgroups): use SCM_ALLOW/DEFER_INTS. (scm_ttyname): use SCM_FPORT_FDES. (scm_tcgetpgrp, scm_tcsetpgrp): likewise. * ioext.c (scm_isatty_p): use SCM_FPORT_FDES. (scm_fdes_to_ports): modified. (scm_fdopen): use scm_fdes_to_port. * ports.c (scm_init_ports): don't try to flush ports using atexit(). it's too late, errors will cause SEGV. * fports.c (scm_fport_buffer_add): new procedure. * fports.h (SCM_FDES_RANDOM_P): new macro. use it in scm_fdes_to_port and scm_redirect_port. * ioext.c (scm_redirect_port): use setvbuf to set buffers in the new port. reset fp->random. * fports.c (scm_fdes_to_port), ports.c (scm_void_port), filesys.c (scm_opendir): restore defer interrupts while the port is constructed. * (scm_setvbuf): if mode is _IOFBF and size is not supplied, derive buffer size from fdes or use a default. (scm_fdes_to_port): use setvbuf instead of creating the buffers directly. vports.c (various places): use SCM_SSTREAM. strports.c: likewise. * gdbint.c: likewise. * ports.h (SCM_SSTREAM): new macro. * fports.c (scm_input_waiting_p): use scm_return_first, since port may be removed from the stack by the tail call to scm_fdes_waiting_p. * fports.h (SCM_CLEAR_BUFFERS): new macro. * ports.c (scm_force_output): call scm_fflush. * print.c (scm_newline): don't check errno for EPIPE (it wouldn't * reach this point.) don't flush port (if scm_cur_outp). * fports.h (SCM_FPORT_FDES): new macro. * vports.c (sfflush): don't need to set errno. * ports.c: install scm_flush_all_ports to be run on exit. ports.c fports.c ioext.c posix.c socket.c net_db.c filesys.c: removed all uses of SCM_DEFER/ALLOW ints for now. they were mainly just protecting errno. some may need to be put back. * scmsigs.c (take_signal): save and restore errno while this proc runs. *fports.c (print_pipe_port, local_pclose, scm_pipob): deleted. * open-pipe, close-pipe are emulated in (ice-9 popen) ports.c (scm_ports_prehistory): don't init scm_pipob. ports.h (scm_tc16_pipe): deleted. posix.c (scm_open_pipe, scm_close_pipe): deleted. * ioext.c (scm_primitive_move_to_fdes): use fport. * fport.c (scm_fport_fill_buffer): flush write buffer if needed. change arg type from scm_fport to SCM port. fport.h (SCM_SETFDES): removed. (SCM_MAYBE_DRAIN_INPUT): new macro. * ioext.c (scm_dup_to_fdes): use SCM_FSTREAM. (scm_ftell): always use lseek and account for the buffer. (scm_fileno): use fport buffer. (scm_fseek): clear fport buffers. always use lseek. * posix.c (scm_pipe): use fport buffer. * unif.c: include fports.h instead of genio.h. * fports.c (scm_fdes_wait_for_input, scm_fport_fill_buffer): new procedures. (local_fgetc): use them. (local_ffwrite): use buffer. (local_fgets): use buffer. (scm_setbuf0): deleted. (scm_setvbuf): set the buffer. (scm_setfileno): deleted. (scm_evict_ports): set fdes directly. * (scm_freopen): deleted. doesn't seem useful in Guile. (scm_stdio_to_port): deleted. fports.h (struct scm_fport): add shortbuf member to avoid separate code for unbuffered ports. (SCM_FPORTP, SCM_OPFPORTP, SCM_OPINFPORTP, SCM_OPOUTFPORTP): moved from ports.h. * genio.c, genio.h: move contents into ports.c, ports.h. The division wasn't useful. * fports.c, fports.h (scm_fport_drain_input): new procedure. * ports.c (scm_drain_input): call scm_fport_drain_input. * scm_fdes_waiting_p: new procedure. * fports.c (scm_fdes_to_port): allocate read and/or write buffers. (scm_input_waiting_p): check the buffer. (local_fgetc, local_fflush, local_fputc): likewise. * fports.h (scm_fport): read/write_buf,_pos,_buf_end,,_buf_size: new members. * init.c (scm_init_standard_ports): pass fdes instead of FILE *. * * ports.c (scm_drain_input): new procedure. ports.h: prototype. * fports.c (FPORT_READ_SAFE, FPORT_WRITE_SAFE, FPORT_ALL_OKAY, pre_read, pre_write): removed. (local_fputc, local_fputs, local_ffwrite): use write, not stdio. (scm_standard_stream_to_port): change first arg from FILE * to int fdes. (local_fflush): flush fdes, not FILE *. * fports.h (SCM_NOFTELL): removed. * genio.c, ports.c: don't include filesys.h. * genio.c (scm_getc): don't use scm_internal_select if FPORT. do it in fports.c:local_fgetc. * genio.c: don't use SCM_SYSCALL when calling ptob procedures. do it where it's needed in the port smobs. * filesys.c (scm_input_waiting_p): moved to fports.c, stdio buffer support removed. take SCM arg, not FILE *. * filesys.h: prototype moved too. * fports.c (scm_fdes_to_port): new procedure. (local_fgetc): use read not fgetc. (local_fclose): use close, not fclose. (local_fgets): use read, not fgets * fports.h: prototype for scm_fdes_to_port. * fports.h (scm_fport): new struct. * fports.c (scm_open_file): use open, not fopen. #include fcntl.h * ports.h (struct scm_port_table): change stream from SCM to void *. * ports.c (scm_add_to_port_table): check for memory allocation error. (scm_prinport): remove MSDOS hair. (scm_void_port): set stream to 0 instead of SCM_BOOL_F. (scm_close_port): don't throw errors: do it in fports.c.
1999-06-09 12:19:58 +00:00
p_rd = scm_i_fdes_to_port (fd[0], scm_mode_bits ("r"), sym_read_pipe,
SCM_FPORT_OPTION_NOT_SEEKABLE);
p_wt = scm_i_fdes_to_port (fd[1], scm_mode_bits ("w"), sym_write_pipe,
SCM_FPORT_OPTION_NOT_SEEKABLE);
return scm_cons (p_rd, p_wt);
}
#undef FUNC_NAME
#ifdef HAVE_GETGROUPS
SCM_DEFINE (scm_getgroups, "getgroups", 0, 0, 0,
(),
"Return a vector of integers representing the current\n"
2002-03-15 10:37:40 +00:00
"supplementary group IDs.")
#define FUNC_NAME s_scm_getgroups
{
SCM result;
int ngroups;
* validate.h (SCM_NUM2{SIZE,PTRDIFF,SHORT,USHORT,BITS,UBITS,INT,UINT}[_DEF]): new macros. * unif.h: type renaming: scm_array -> scm_array_t scm_array_dim -> scm_array_dim_t the old names are deprecated, all in-Guile uses changed. * tags.h (scm_ubits_t): new typedef, representing unsigned scm_bits_t. * stacks.h: type renaming: scm_info_frame -> scm_info_frame_t scm_stack -> scm_stack_t the old names are deprecated, all in-Guile uses changed. * srcprop.h: type renaming: scm_srcprops -> scm_srcprops_t scm_srcprops_chunk -> scm_srcprops_chunk_t the old names are deprecated, all in-Guile uses changed. * gsubr.c, procs.c, print.c, ports.c, read.c, rdelim.c, ramap.c, rw.c, smob.c, sort.c, srcprop.c, stacks.c, strings.c, strop.c, strorder.c, strports.c, struct.c, symbols.c, unif.c, values.c, vectors.c, vports.c, weaks.c: various int/size_t -> size_t/scm_bits_t changes. * random.h: type renaming: scm_rstate -> scm_rstate_t scm_rng -> scm_rng_t scm_i_rstate -> scm_i_rstate_t the old names are deprecated, all in-Guile uses changed. * procs.h: type renaming: scm_subr_entry -> scm_subr_entry_t the old name is deprecated, all in-Guile uses changed. * options.h (scm_option_t.val): unsigned long -> scm_bits_t. type renaming: scm_option -> scm_option_t the old name is deprecated, all in-Guile uses changed. * objects.c: various long -> scm_bits_t changes. (scm_i_make_class_object): flags: unsigned long -> scm_ubits_t * numbers.h (SCM_FIXNUM_BIT): deprecated, renamed to SCM_I_FIXNUM_BIT. * num2integral.i.c: new file, multiply included by numbers.c, used to "templatize" the various integral <-> num conversion routines. * numbers.c (scm_mkbig, scm_big2num, scm_adjbig, scm_normbig, scm_copybig, scm_2ulong2big, scm_dbl2big, scm_big2dbl): deprecated. (scm_i_mkbig, scm_i_big2inum, scm_i_adjbig, scm_i_normbig, scm_i_copybig, scm_i_short2big, scm_i_ushort2big, scm_i_int2big, scm_i_uint2big, scm_i_long2big, scm_i_ulong2big, scm_i_bits2big, scm_i_ubits2big, scm_i_size2big, scm_i_ptrdiff2big, scm_i_long_long2big, scm_i_ulong_long2big, scm_i_dbl2big, scm_i_big2dbl, scm_short2num, scm_ushort2num, scm_int2num, scm_uint2num, scm_bits2num, scm_ubits2num, scm_size2num, scm_ptrdiff2num, scm_num2short, scm_num2ushort, scm_num2int, scm_num2uint, scm_num2bits, scm_num2ubits, scm_num2ptrdiff, scm_num2size): new functions. * modules.c (scm_module_reverse_lookup): i, n: int -> scm_bits_t.x * load.c: change int -> size_t in various places (where the variable is used to store a string length). (search-path): call scm_done_free, not scm_done_malloc. * list.c (scm_ilength): return a scm_bits_t, not long. some other {int,long} -> scm_bits_t changes. * hashtab.c: various [u]int -> scm_bits_t changes. scm_ihashx_closure -> scm_ihashx_closure_t (and made a typedef). (scm_ihashx): n: uint -> scm_bits_t use scm_bits2num instead of scm_ulong2num. * gsubr.c: various int -> scm_bits_t changes. * gh_data.c (gh_scm2double): no loss of precision any more. * gh.h (gh_str2scm): len: int -> size_t (gh_{get,set}_substr): start: int -> scm_bits_t, len: int -> size_t (gh_<num>2scm): n: int -> scm_bits_t (gh_*vector_length): return scm_[u]size_t, not unsigned long. (gh_length): return scm_bits_t, not unsigned long. * fports.h: type renaming: scm_fport -> scm_fport_t the old name is deprecated, all in-Guile uses changed. * fports.c (fport_fill_input): count: int -> scm_bits_t (fport_flush): init_size, remaining, count: int -> scm_bits_t * debug.h (scm_lookup_cstr, scm_lookup_soft, scm_evstr): removed those prototypes, as the functions they prototype don't exist. * fports.c (default_buffer_size): int -> size_t (scm_fport_buffer_add): read_size, write_size: int -> scm_bits_t default_size: int -> size_t (scm_setvbuf): csize: int -> scm_bits_t * fluids.c (n_fluids): int -> scm_bits_t (grow_fluids): old_length, i: int -> scm_bits_t (next_fluid_num, scm_fluid_ref, scm_fluid_set_x): n: int -> scm_bits_t (scm_c_with_fluids): flen, vlen: int -> scm_bits_t * filesys.c (s_scm_open_fdes): changed calls to SCM_NUM2LONG to the new and shiny SCM_NUM2INT. * extensions.c: extension -> extension_t (and made a typedef). * eval.h (SCM_IFRAME): cast to scm_bits_t, not int. just so there are no nasty surprises if/when the various deeply magic tag bits move somewhere else. * eval.c: changed the locals used to store results of SCM_IFRAME, scm_ilength and such to be of type scm_bits_t (and not int/long). (iqq): depth, edepth: int -> scm_bits_t (scm_eval_stack): int -> scm_bits_t (SCM_CEVAL): various vars are not scm_bits_t instead of int. (check_map_args, scm_map, scm_for_each): len: long -> scm_bits_t i: int -> scm_bits_t * environments.c: changed the many calls to scm_ulong2num to scm_ubits2num. (import_environment_fold): proc_as_ul: ulong -> scm_ubits_t * dynwind.c (scm_dowinds): delta: long -> scm_bits_t * debug.h: type renaming: scm_debug_info -> scm_debug_info_t scm_debug_frame -> scm_debug_frame_t the old names are deprecated, all in-Guile uses changed. (scm_debug_eframe_size): int -> scm_bits_t * debug.c (scm_init_debug): use scm_c_define instead of the deprecated scm_define. * continuations.h: type renaming: scm_contregs -> scm_contregs_t the old name is deprecated, all in-Guile uses changed. (scm_contregs_t.num_stack_items): size_t -> scm_bits_t (scm_contregs_t.num_stack_items): ulong -> scm_ubits_t * continuations.c (scm_make_continuation): change the type of stack_size form long to scm_bits_t. * ports.h: type renaming: scm_port_rw_active -> scm_port_rw_active_t (and made a typedef) scm_port -> scm_port_t scm_ptob_descriptor -> scm_ptob_descriptor_t the old names are deprecated, all in-Guile uses changed. (scm_port_t.entry): int -> scm_bits_t. (scm_port_t.line_number): int -> long. (scm_port_t.putback_buf_size): int -> size_t. * __scm.h (long_long, ulong_long): deprecated (they pollute the global namespace and have little value besides that). (SCM_BITS_LENGTH): new, is the bit size of scm_bits_t (i.e. of an SCM handle). (ifdef spaghetti): include sys/types.h and sys/stdtypes.h, if they exist (for size_t & ptrdiff_t) (scm_sizet): deprecated. * Makefile.am (noinst_HEADERS): add num2integral.i.c
2001-05-24 00:50:51 +00:00
size_t size;
GETGROUPS_T *groups;
ngroups = getgroups (0, NULL);
if (ngroups < 0)
SCM_SYSERROR;
else if (ngroups == 0)
return scm_c_make_vector (0, SCM_BOOL_F);
size = ngroups * sizeof (GETGROUPS_T);
groups = scm_malloc (size);
ngroups = getgroups (ngroups, groups);
result = scm_c_make_vector (ngroups, SCM_BOOL_F);
while (--ngroups >= 0)
SCM_SIMPLE_VECTOR_SET (result, ngroups, scm_from_ulong (groups[ngroups]));
free (groups);
return result;
}
#undef FUNC_NAME
#endif
#ifdef HAVE_SETGROUPS
SCM_DEFINE (scm_setgroups, "setgroups", 1, 0, 0,
(SCM group_vec),
"Set the current set of supplementary group IDs to the integers\n"
"in the given vector @var{group_vec}. The return value is\n"
"unspecified.\n"
"\n"
"Generally only the superuser can set the process group IDs.")
#define FUNC_NAME s_scm_setgroups
{
size_t ngroups;
size_t size;
size_t i;
int result;
int save_errno;
GETGROUPS_T *groups;
SCM_VALIDATE_VECTOR (SCM_ARG1, group_vec);
ngroups = SCM_SIMPLE_VECTOR_LENGTH (group_vec);
/* validate before allocating, so we don't have to worry about leaks */
for (i = 0; i < ngroups; i++)
{
unsigned long ulong_gid;
GETGROUPS_T gid;
SCM_VALIDATE_ULONG_COPY (1, SCM_SIMPLE_VECTOR_REF (group_vec, i),
ulong_gid);
gid = ulong_gid;
if (gid != ulong_gid)
SCM_OUT_OF_RANGE (1, SCM_SIMPLE_VECTOR_REF (group_vec, i));
}
size = ngroups * sizeof (GETGROUPS_T);
if (size / sizeof (GETGROUPS_T) != ngroups)
SCM_OUT_OF_RANGE (SCM_ARG1, scm_from_int (ngroups));
groups = scm_malloc (size);
for(i = 0; i < ngroups; i++)
groups [i] = SCM_NUM2ULONG (1, SCM_SIMPLE_VECTOR_REF (group_vec, i));
result = setgroups (ngroups, groups);
save_errno = errno; /* don't let free() touch errno */
free (groups);
errno = save_errno;
if (result < 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif
2001-06-26 17:53:09 +00:00
#ifdef HAVE_GETPWENT
SCM_DEFINE (scm_getpwuid, "getpw", 0, 1, 0,
(SCM user),
"Look up an entry in the user database. @var{user} can be an\n"
"integer, a string, or omitted, giving the behaviour of\n"
"@code{getpwuid}, @code{getpwnam} or @code{getpwent}\n"
"respectively.")
#define FUNC_NAME s_scm_getpwuid
{
struct passwd *entry;
SCM result = scm_c_make_vector (7, SCM_UNSPECIFIED);
if (SCM_UNBNDP (user) || scm_is_false (user))
{
SCM_SYSCALL (entry = getpwent ());
if (! entry)
{
return SCM_BOOL_F;
}
}
else if (scm_is_integer (user))
{
entry = getpwuid (scm_to_int (user));
}
else
{
WITH_STRING (user, c_user,
entry = getpwnam (c_user));
}
if (!entry)
SCM_MISC_ERROR ("entry not found", SCM_EOL);
SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_locale_string (entry->pw_name));
SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (entry->pw_passwd));
SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_ulong (entry->pw_uid));
SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_ulong (entry->pw_gid));
SCM_SIMPLE_VECTOR_SET(result, 4, scm_from_locale_string (entry->pw_gecos));
if (!entry->pw_dir)
SCM_SIMPLE_VECTOR_SET(result, 5, scm_from_utf8_string (""));
else
SCM_SIMPLE_VECTOR_SET(result, 5, scm_from_locale_string (entry->pw_dir));
if (!entry->pw_shell)
SCM_SIMPLE_VECTOR_SET(result, 6, scm_from_utf8_string (""));
else
SCM_SIMPLE_VECTOR_SET(result, 6, scm_from_locale_string (entry->pw_shell));
return result;
}
#undef FUNC_NAME
2001-06-26 17:53:09 +00:00
#endif /* HAVE_GETPWENT */
#ifdef HAVE_SETPWENT
SCM_DEFINE (scm_setpwent, "setpw", 0, 1, 0,
(SCM arg),
"If called with a true argument, initialize or reset the password data\n"
"stream. Otherwise, close the stream. The @code{setpwent} and\n"
"@code{endpwent} procedures are implemented on top of this.")
#define FUNC_NAME s_scm_setpwent
{
if (SCM_UNBNDP (arg) || scm_is_false (arg))
endpwent ();
else
setpwent ();
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif
2001-06-26 17:53:09 +00:00
#ifdef HAVE_GETGRENT
/* Combines getgrgid and getgrnam. */
SCM_DEFINE (scm_getgrgid, "getgr", 0, 1, 0,
(SCM name),
"Look up an entry in the group database. @var{name} can be an\n"
"integer, a string, or omitted, giving the behaviour of\n"
"@code{getgrgid}, @code{getgrnam} or @code{getgrent}\n"
"respectively.")
#define FUNC_NAME s_scm_getgrgid
{
struct group *entry;
SCM result = scm_c_make_vector (4, SCM_UNSPECIFIED);
if (SCM_UNBNDP (name) || scm_is_false (name))
{
SCM_SYSCALL (entry = getgrent ());
if (! entry)
{
return SCM_BOOL_F;
}
}
else if (scm_is_integer (name))
SCM_SYSCALL (entry = getgrgid (scm_to_int (name)));
else
STRING_SYSCALL (name, c_name,
entry = getgrnam (c_name));
if (!entry)
SCM_SYSERROR;
SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_locale_string (entry->gr_name));
SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (entry->gr_passwd));
SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_ulong (entry->gr_gid));
SCM_SIMPLE_VECTOR_SET(result, 3, scm_makfromstrs (-1, entry->gr_mem));
return result;
}
#undef FUNC_NAME
SCM_DEFINE (scm_setgrent, "setgr", 0, 1, 0,
(SCM arg),
"If called with a true argument, initialize or reset the group data\n"
"stream. Otherwise, close the stream. The @code{setgrent} and\n"
"@code{endgrent} procedures are implemented on top of this.")
#define FUNC_NAME s_scm_setgrent
{
if (SCM_UNBNDP (arg) || scm_is_false (arg))
endgrent ();
else
setgrent ();
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
2001-06-26 17:53:09 +00:00
#endif /* HAVE_GETGRENT */
#ifdef HAVE_GETRLIMIT
#ifdef RLIMIT_AS
SCM_SYMBOL (sym_as, "as");
#endif
#ifdef RLIMIT_CORE
SCM_SYMBOL (sym_core, "core");
#endif
#ifdef RLIMIT_CPU
SCM_SYMBOL (sym_cpu, "cpu");
#endif
#ifdef RLIMIT_DATA
SCM_SYMBOL (sym_data, "data");
#endif
#ifdef RLIMIT_FSIZE
SCM_SYMBOL (sym_fsize, "fsize");
#endif
#ifdef RLIMIT_MEMLOCK
SCM_SYMBOL (sym_memlock, "memlock");
#endif
#ifdef RLIMIT_MSGQUEUE
SCM_SYMBOL (sym_msgqueue, "msgqueue");
#endif
#ifdef RLIMIT_NICE
SCM_SYMBOL (sym_nice, "nice");
#endif
#ifdef RLIMIT_NOFILE
SCM_SYMBOL (sym_nofile, "nofile");
#endif
#ifdef RLIMIT_NPROC
SCM_SYMBOL (sym_nproc, "nproc");
#endif
#ifdef RLIMIT_RSS
SCM_SYMBOL (sym_rss, "rss");
#endif
#ifdef RLIMIT_RTPRIO
SCM_SYMBOL (sym_rtprio, "rtprio");
#endif
#ifdef RLIMIT_RTPRIO
SCM_SYMBOL (sym_rttime, "rttime");
#endif
#ifdef RLIMIT_SIGPENDING
SCM_SYMBOL (sym_sigpending, "sigpending");
#endif
#ifdef RLIMIT_STACK
SCM_SYMBOL (sym_stack, "stack");
#endif
static int
scm_to_resource (SCM s, const char *func, int pos)
{
if (scm_is_number (s))
return scm_to_int (s);
SCM_ASSERT_TYPE (scm_is_symbol (s), s, pos, func, "symbol");
#ifdef RLIMIT_AS
if (scm_is_eq (s, sym_as))
return RLIMIT_AS;
#endif
#ifdef RLIMIT_CORE
if (scm_is_eq (s, sym_core))
return RLIMIT_CORE;
#endif
#ifdef RLIMIT_CPU
if (scm_is_eq (s, sym_cpu))
return RLIMIT_CPU;
#endif
#ifdef RLIMIT_DATA
if (scm_is_eq (s, sym_data))
return RLIMIT_DATA;
#endif
#ifdef RLIMIT_FSIZE
if (scm_is_eq (s, sym_fsize))
return RLIMIT_FSIZE;
#endif
#ifdef RLIMIT_MEMLOCK
if (scm_is_eq (s, sym_memlock))
return RLIMIT_MEMLOCK;
#endif
#ifdef RLIMIT_MSGQUEUE
if (scm_is_eq (s, sym_msgqueue))
return RLIMIT_MSGQUEUE;
#endif
#ifdef RLIMIT_NICE
if (scm_is_eq (s, sym_nice))
return RLIMIT_NICE;
#endif
#ifdef RLIMIT_NOFILE
if (scm_is_eq (s, sym_nofile))
return RLIMIT_NOFILE;
#endif
#ifdef RLIMIT_NPROC
if (scm_is_eq (s, sym_nproc))
return RLIMIT_NPROC;
#endif
#ifdef RLIMIT_RSS
if (scm_is_eq (s, sym_rss))
return RLIMIT_RSS;
#endif
#ifdef RLIMIT_RTPRIO
if (scm_is_eq (s, sym_rtprio))
return RLIMIT_RTPRIO;
#endif
#ifdef RLIMIT_RTPRIO
if (scm_is_eq (s, sym_rttime))
return RLIMIT_RTPRIO;
#endif
#ifdef RLIMIT_SIGPENDING
if (scm_is_eq (s, sym_sigpending))
return RLIMIT_SIGPENDING;
#endif
#ifdef RLIMIT_STACK
if (scm_is_eq (s, sym_stack))
return RLIMIT_STACK;
#endif
scm_misc_error (func, "invalid rlimit resource ~A", scm_list_1 (s));
return 0;
}
SCM_DEFINE (scm_getrlimit, "getrlimit", 1, 0, 0,
(SCM resource),
"Get a resource limit for this process. @var{resource} identifies the resource,\n"
"either as an integer or as a symbol. For example, @code{(getrlimit 'stack)}\n"
"gets the limits associated with @code{RLIMIT_STACK}.\n\n"
"@code{getrlimit} returns two values, the soft and the hard limit. If no\n"
"limit is set for the resource in question, the returned limit will be @code{#f}.")
#define FUNC_NAME s_scm_getrlimit
{
int iresource;
struct rlimit lim = { 0, 0 };
iresource = scm_to_resource (resource, FUNC_NAME, 1);
if (getrlimit (iresource, &lim) != 0)
scm_syserror (FUNC_NAME);
Give multiple-values objects a tc7 * libguile/scm.h (scm_tc7_values): New tc7. Never seen by Scheme, so we don't need to update it anywhere else. * libguile/values.h (scm_is_values): New public static inline function. (scm_i_nvalues, scm_i_value_ref): New private static inline functions. (SCM_VALUESP): Use scm_is_value. (scm_values_2, scm_values_3): New functions. (scm_values_vtable): Remove; values objects are not structs any more. * libguile/values.c (scm_i_extract_values_2): Adapt to new values representation. (print_values): Remove now-unused function. (scm_c_nvalues): Use scm_i_nvalues. (scm_c_value_ref): Use scm_i_value_ref. (scm_values, scm_c_values): Make the new-style objects, which store their values inline. (scm_values_2, scm_values_3): New helpers, to avoid consing little useless lists. * libguile/vm-engine.c (halt, subr-call) * libguile/eval.c (eval): Adapt to new values representation. * libguile/i18n.c (scm_locale_string_to_integer) (scm_locale_string_to_integer) * libguile/numbers.c (scm_i_floor_divide, scm_i_ceiling_divide) (scm_i_truncate_divide, scm_i_centered_divide, scm_i_round_divide) (scm_i_exact_integer_sqrt) * libguile/r6rs-ports.c (make_bytevector_output_port) * libguile/srfi-1.c (scm_srfi1_partition, scm_srfi1_partition_x) * libguile/srfi-14.c (scm_char_set_diff_plus_intersection) (scm_char_set_diff_plus_intersection_x) * libguile/posix.c (scm_getrlimit, scm_open_process): Adapt to use scm_values_2 or scm_values_3. * libguile/print.c (iprin1): Add printer for values objects.
2018-06-25 15:49:34 +02:00
return scm_values_2 ((lim.rlim_cur == RLIM_INFINITY) ? SCM_BOOL_F
: scm_from_long (lim.rlim_cur),
(lim.rlim_max == RLIM_INFINITY) ? SCM_BOOL_F
: scm_from_long (lim.rlim_max));
}
#undef FUNC_NAME
#ifdef HAVE_SETRLIMIT
SCM_DEFINE (scm_setrlimit, "setrlimit", 3, 0, 0,
(SCM resource, SCM soft, SCM hard),
"Set a resource limit for this process. @var{resource} identifies the resource,\n"
"either as an integer or as a symbol. @var{soft} and @var{hard} should be integers,\n"
"or @code{#f} to indicate no limit (i.e., @code{RLIM_INFINITY}).\n\n"
"For example, @code{(setrlimit 'stack 150000 300000)} sets the @code{RLIMIT_STACK}\n"
"limit to 150 kilobytes, with a hard limit of 300 kB.")
#define FUNC_NAME s_scm_setrlimit
{
int iresource;
struct rlimit lim = { 0, 0 };
iresource = scm_to_resource (resource, FUNC_NAME, 1);
lim.rlim_cur = scm_is_false (soft) ? RLIM_INFINITY : scm_to_long (soft);
lim.rlim_max = scm_is_false (hard) ? RLIM_INFINITY : scm_to_long (hard);
if (setrlimit (iresource, &lim) != 0)
scm_syserror (FUNC_NAME);
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETRLIMIT */
#endif /* HAVE_GETRLIMIT */
#ifdef HAVE_KILL
SCM_DEFINE (scm_kill, "kill", 2, 0, 0,
(SCM pid, SCM sig),
"Sends a signal to the specified process or group of processes.\n\n"
"@var{pid} specifies the processes to which the signal is sent:\n\n"
"@table @r\n"
"@item @var{pid} greater than 0\n"
"The process whose identifier is @var{pid}.\n"
"@item @var{pid} equal to 0\n"
"All processes in the current process group.\n"
"@item @var{pid} less than -1\n"
"The process group whose identifier is -@var{pid}\n"
"@item @var{pid} equal to -1\n"
"If the process is privileged, all processes except for some special\n"
"system processes. Otherwise, all processes with the current effective\n"
"user ID.\n"
"@end table\n\n"
"@var{sig} should be specified using a variable corresponding to\n"
"the Unix symbolic name, e.g.,\n\n"
"@defvar SIGHUP\n"
"Hang-up signal.\n"
"@end defvar\n\n"
"@defvar SIGINT\n"
"Interrupt signal.\n"
"@end defvar")
#define FUNC_NAME s_scm_kill
{
/* Signal values are interned in scm_init_posix(). */
if (kill (scm_to_int (pid), scm_to_int (sig)) != 0)
2007-01-15 23:42:45 +00:00
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif
#ifdef HAVE_WAITPID
SCM_DEFINE (scm_waitpid, "waitpid", 1, 1, 0,
(SCM pid, SCM options),
"This procedure collects status information from a child process which\n"
"has terminated or (optionally) stopped. Normally it will\n"
"suspend the calling process until this can be done. If more than one\n"
"child process is eligible then one will be chosen by the operating system.\n\n"
"The value of @var{pid} determines the behaviour:\n\n"
"@table @r\n"
"@item @var{pid} greater than 0\n"
"Request status information from the specified child process.\n"
"@item @var{pid} equal to -1 or WAIT_ANY\n"
"Request status information for any child process.\n"
"@item @var{pid} equal to 0 or WAIT_MYPGRP\n"
"Request status information for any child process in the current process\n"
"group.\n"
"@item @var{pid} less than -1\n"
"Request status information for any child process whose process group ID\n"
"is -@var{pid}.\n"
"@end table\n\n"
"The @var{options} argument, if supplied, should be the bitwise OR of the\n"
"values of zero or more of the following variables:\n\n"
"@defvar WNOHANG\n"
"Return immediately even if there are no child processes to be collected.\n"
"@end defvar\n\n"
"@defvar WUNTRACED\n"
"Report status information for stopped processes as well as terminated\n"
"processes.\n"
"@end defvar\n\n"
"The return value is a pair containing:\n\n"
"@enumerate\n"
"@item\n"
"The process ID of the child process, or 0 if @code{WNOHANG} was\n"
"specified and no process was collected.\n"
"@item\n"
"The integer status value.\n"
"@end enumerate")
#define FUNC_NAME s_scm_waitpid
{
int i;
int status;
int ioptions;
if (SCM_UNBNDP (options))
ioptions = 0;
else
{
/* Flags are interned in scm_init_posix. */
ioptions = scm_to_int (options);
}
SCM_SYSCALL (i = waitpid (scm_to_int (pid), &status, ioptions));
if (i == -1)
SCM_SYSERROR;
return scm_cons (scm_from_int (i), scm_from_int (status));
}
#undef FUNC_NAME
#endif /* HAVE_WAITPID */
#ifdef WIFEXITED
SCM_DEFINE (scm_status_exit_val, "status:exit-val", 1, 0, 0,
(SCM status),
"Return the exit status value, as would be set if a process\n"
"ended normally through a call to @code{exit} or @code{_exit},\n"
"if any, otherwise @code{#f}.")
#define FUNC_NAME s_scm_status_exit_val
* ioext.c (scm_setfileno): throw a runtime error if SET_FILE_FD_FIELD wan't defined. Don't include fd.h. * Previously fd.h was regenerated whenever configure was run, forcing a couple of files to be recompiled. * fd.h.in: deleted, SET_FILE_FD_FIELD moved to ioext.c. * configure.in: AC_DEFINE FD_SETTER instead of HAVE_FD_SETTER. Check for _fileno as well as _file. Don't output fd.h. * ioext.c: don't fd.h. * acconfig.h: remove duplicate HAVE_FD_SETTER and change the other to FD_SETTER. * Change the stratigy for getting information about errno (and now signal number) values, e.g., ENOSYS, SIGKILL. Instead of generating lists of symbols during the build process, which will not always work, include comprehensive lists in the distribution. To help keep the lists up to date, the "check_signals" and "check_errnos" make targets can be used. * configure.in: don't check for a command to extract errno codes. * Makefile.am: update file lists, remove errnos.list and errnos.c targets, add cpp_err_symbols.c, cpp_sig_symbols.c, check_signals, check_errnos targets. (CLEANFILES): remove errnos.c and errnos.list, add cpp_err_symbols_here cpp_err_symbols_diff cpp_err_symbols_new cpp_sig_symbols_here cpp_sig_symbols_diff cpp_sig_symbols_new * errnos.default: deleted. * cpp_signal.c: new file. * cpp_errno.c: renamed from errnos_get.c. * cpp_err_symbols, cpp_sig_symbols: new files. * cpp_cnvt.awk: renamed from errnos_cnvt_awk. * error.c (scm_init_error): #include cpp_err_symbols instead of errnos.c. * posix.c (scm_init_posix): don't intern signal symbols. #include cpp_sig_symbols.c. * strop.c (scm_i_index): allow the lower bound to be equal to the length of the string, so a null string doesn't always give an error. * posix.h: new prototypes. * posix.c (scm_status_exit_val, scm_status_term_sig, scm_status_stop_sig): new functions, as in scsh. They break down process status values as returned by waitpid.
1997-03-29 18:42:43 +00:00
{
int lstatus;
/* On Ultrix, the WIF... macros assume their argument is an lvalue;
go figure. */
lstatus = scm_to_int (status);
if (WIFEXITED (lstatus))
return (scm_from_int (WEXITSTATUS (lstatus)));
* ioext.c (scm_setfileno): throw a runtime error if SET_FILE_FD_FIELD wan't defined. Don't include fd.h. * Previously fd.h was regenerated whenever configure was run, forcing a couple of files to be recompiled. * fd.h.in: deleted, SET_FILE_FD_FIELD moved to ioext.c. * configure.in: AC_DEFINE FD_SETTER instead of HAVE_FD_SETTER. Check for _fileno as well as _file. Don't output fd.h. * ioext.c: don't fd.h. * acconfig.h: remove duplicate HAVE_FD_SETTER and change the other to FD_SETTER. * Change the stratigy for getting information about errno (and now signal number) values, e.g., ENOSYS, SIGKILL. Instead of generating lists of symbols during the build process, which will not always work, include comprehensive lists in the distribution. To help keep the lists up to date, the "check_signals" and "check_errnos" make targets can be used. * configure.in: don't check for a command to extract errno codes. * Makefile.am: update file lists, remove errnos.list and errnos.c targets, add cpp_err_symbols.c, cpp_sig_symbols.c, check_signals, check_errnos targets. (CLEANFILES): remove errnos.c and errnos.list, add cpp_err_symbols_here cpp_err_symbols_diff cpp_err_symbols_new cpp_sig_symbols_here cpp_sig_symbols_diff cpp_sig_symbols_new * errnos.default: deleted. * cpp_signal.c: new file. * cpp_errno.c: renamed from errnos_get.c. * cpp_err_symbols, cpp_sig_symbols: new files. * cpp_cnvt.awk: renamed from errnos_cnvt_awk. * error.c (scm_init_error): #include cpp_err_symbols instead of errnos.c. * posix.c (scm_init_posix): don't intern signal symbols. #include cpp_sig_symbols.c. * strop.c (scm_i_index): allow the lower bound to be equal to the length of the string, so a null string doesn't always give an error. * posix.h: new prototypes. * posix.c (scm_status_exit_val, scm_status_term_sig, scm_status_stop_sig): new functions, as in scsh. They break down process status values as returned by waitpid.
1997-03-29 18:42:43 +00:00
else
return SCM_BOOL_F;
}
#undef FUNC_NAME
#endif /* WIFEXITED */
#ifdef WIFSIGNALED
SCM_DEFINE (scm_status_term_sig, "status:term-sig", 1, 0, 0,
(SCM status),
"Return the signal number which terminated the process, if any,\n"
"otherwise @code{#f}.")
#define FUNC_NAME s_scm_status_term_sig
* ioext.c (scm_setfileno): throw a runtime error if SET_FILE_FD_FIELD wan't defined. Don't include fd.h. * Previously fd.h was regenerated whenever configure was run, forcing a couple of files to be recompiled. * fd.h.in: deleted, SET_FILE_FD_FIELD moved to ioext.c. * configure.in: AC_DEFINE FD_SETTER instead of HAVE_FD_SETTER. Check for _fileno as well as _file. Don't output fd.h. * ioext.c: don't fd.h. * acconfig.h: remove duplicate HAVE_FD_SETTER and change the other to FD_SETTER. * Change the stratigy for getting information about errno (and now signal number) values, e.g., ENOSYS, SIGKILL. Instead of generating lists of symbols during the build process, which will not always work, include comprehensive lists in the distribution. To help keep the lists up to date, the "check_signals" and "check_errnos" make targets can be used. * configure.in: don't check for a command to extract errno codes. * Makefile.am: update file lists, remove errnos.list and errnos.c targets, add cpp_err_symbols.c, cpp_sig_symbols.c, check_signals, check_errnos targets. (CLEANFILES): remove errnos.c and errnos.list, add cpp_err_symbols_here cpp_err_symbols_diff cpp_err_symbols_new cpp_sig_symbols_here cpp_sig_symbols_diff cpp_sig_symbols_new * errnos.default: deleted. * cpp_signal.c: new file. * cpp_errno.c: renamed from errnos_get.c. * cpp_err_symbols, cpp_sig_symbols: new files. * cpp_cnvt.awk: renamed from errnos_cnvt_awk. * error.c (scm_init_error): #include cpp_err_symbols instead of errnos.c. * posix.c (scm_init_posix): don't intern signal symbols. #include cpp_sig_symbols.c. * strop.c (scm_i_index): allow the lower bound to be equal to the length of the string, so a null string doesn't always give an error. * posix.h: new prototypes. * posix.c (scm_status_exit_val, scm_status_term_sig, scm_status_stop_sig): new functions, as in scsh. They break down process status values as returned by waitpid.
1997-03-29 18:42:43 +00:00
{
int lstatus;
lstatus = scm_to_int (status);
if (WIFSIGNALED (lstatus))
return scm_from_int (WTERMSIG (lstatus));
* ioext.c (scm_setfileno): throw a runtime error if SET_FILE_FD_FIELD wan't defined. Don't include fd.h. * Previously fd.h was regenerated whenever configure was run, forcing a couple of files to be recompiled. * fd.h.in: deleted, SET_FILE_FD_FIELD moved to ioext.c. * configure.in: AC_DEFINE FD_SETTER instead of HAVE_FD_SETTER. Check for _fileno as well as _file. Don't output fd.h. * ioext.c: don't fd.h. * acconfig.h: remove duplicate HAVE_FD_SETTER and change the other to FD_SETTER. * Change the stratigy for getting information about errno (and now signal number) values, e.g., ENOSYS, SIGKILL. Instead of generating lists of symbols during the build process, which will not always work, include comprehensive lists in the distribution. To help keep the lists up to date, the "check_signals" and "check_errnos" make targets can be used. * configure.in: don't check for a command to extract errno codes. * Makefile.am: update file lists, remove errnos.list and errnos.c targets, add cpp_err_symbols.c, cpp_sig_symbols.c, check_signals, check_errnos targets. (CLEANFILES): remove errnos.c and errnos.list, add cpp_err_symbols_here cpp_err_symbols_diff cpp_err_symbols_new cpp_sig_symbols_here cpp_sig_symbols_diff cpp_sig_symbols_new * errnos.default: deleted. * cpp_signal.c: new file. * cpp_errno.c: renamed from errnos_get.c. * cpp_err_symbols, cpp_sig_symbols: new files. * cpp_cnvt.awk: renamed from errnos_cnvt_awk. * error.c (scm_init_error): #include cpp_err_symbols instead of errnos.c. * posix.c (scm_init_posix): don't intern signal symbols. #include cpp_sig_symbols.c. * strop.c (scm_i_index): allow the lower bound to be equal to the length of the string, so a null string doesn't always give an error. * posix.h: new prototypes. * posix.c (scm_status_exit_val, scm_status_term_sig, scm_status_stop_sig): new functions, as in scsh. They break down process status values as returned by waitpid.
1997-03-29 18:42:43 +00:00
else
return SCM_BOOL_F;
}
#undef FUNC_NAME
#endif /* WIFSIGNALED */
#ifdef WIFSTOPPED
SCM_DEFINE (scm_status_stop_sig, "status:stop-sig", 1, 0, 0,
(SCM status),
"Return the signal number which stopped the process, if any,\n"
"otherwise @code{#f}.")
#define FUNC_NAME s_scm_status_stop_sig
* ioext.c (scm_setfileno): throw a runtime error if SET_FILE_FD_FIELD wan't defined. Don't include fd.h. * Previously fd.h was regenerated whenever configure was run, forcing a couple of files to be recompiled. * fd.h.in: deleted, SET_FILE_FD_FIELD moved to ioext.c. * configure.in: AC_DEFINE FD_SETTER instead of HAVE_FD_SETTER. Check for _fileno as well as _file. Don't output fd.h. * ioext.c: don't fd.h. * acconfig.h: remove duplicate HAVE_FD_SETTER and change the other to FD_SETTER. * Change the stratigy for getting information about errno (and now signal number) values, e.g., ENOSYS, SIGKILL. Instead of generating lists of symbols during the build process, which will not always work, include comprehensive lists in the distribution. To help keep the lists up to date, the "check_signals" and "check_errnos" make targets can be used. * configure.in: don't check for a command to extract errno codes. * Makefile.am: update file lists, remove errnos.list and errnos.c targets, add cpp_err_symbols.c, cpp_sig_symbols.c, check_signals, check_errnos targets. (CLEANFILES): remove errnos.c and errnos.list, add cpp_err_symbols_here cpp_err_symbols_diff cpp_err_symbols_new cpp_sig_symbols_here cpp_sig_symbols_diff cpp_sig_symbols_new * errnos.default: deleted. * cpp_signal.c: new file. * cpp_errno.c: renamed from errnos_get.c. * cpp_err_symbols, cpp_sig_symbols: new files. * cpp_cnvt.awk: renamed from errnos_cnvt_awk. * error.c (scm_init_error): #include cpp_err_symbols instead of errnos.c. * posix.c (scm_init_posix): don't intern signal symbols. #include cpp_sig_symbols.c. * strop.c (scm_i_index): allow the lower bound to be equal to the length of the string, so a null string doesn't always give an error. * posix.h: new prototypes. * posix.c (scm_status_exit_val, scm_status_term_sig, scm_status_stop_sig): new functions, as in scsh. They break down process status values as returned by waitpid.
1997-03-29 18:42:43 +00:00
{
int lstatus;
lstatus = scm_to_int (status);
if (WIFSTOPPED (lstatus))
return scm_from_int (WSTOPSIG (lstatus));
* ioext.c (scm_setfileno): throw a runtime error if SET_FILE_FD_FIELD wan't defined. Don't include fd.h. * Previously fd.h was regenerated whenever configure was run, forcing a couple of files to be recompiled. * fd.h.in: deleted, SET_FILE_FD_FIELD moved to ioext.c. * configure.in: AC_DEFINE FD_SETTER instead of HAVE_FD_SETTER. Check for _fileno as well as _file. Don't output fd.h. * ioext.c: don't fd.h. * acconfig.h: remove duplicate HAVE_FD_SETTER and change the other to FD_SETTER. * Change the stratigy for getting information about errno (and now signal number) values, e.g., ENOSYS, SIGKILL. Instead of generating lists of symbols during the build process, which will not always work, include comprehensive lists in the distribution. To help keep the lists up to date, the "check_signals" and "check_errnos" make targets can be used. * configure.in: don't check for a command to extract errno codes. * Makefile.am: update file lists, remove errnos.list and errnos.c targets, add cpp_err_symbols.c, cpp_sig_symbols.c, check_signals, check_errnos targets. (CLEANFILES): remove errnos.c and errnos.list, add cpp_err_symbols_here cpp_err_symbols_diff cpp_err_symbols_new cpp_sig_symbols_here cpp_sig_symbols_diff cpp_sig_symbols_new * errnos.default: deleted. * cpp_signal.c: new file. * cpp_errno.c: renamed from errnos_get.c. * cpp_err_symbols, cpp_sig_symbols: new files. * cpp_cnvt.awk: renamed from errnos_cnvt_awk. * error.c (scm_init_error): #include cpp_err_symbols instead of errnos.c. * posix.c (scm_init_posix): don't intern signal symbols. #include cpp_sig_symbols.c. * strop.c (scm_i_index): allow the lower bound to be equal to the length of the string, so a null string doesn't always give an error. * posix.h: new prototypes. * posix.c (scm_status_exit_val, scm_status_term_sig, scm_status_stop_sig): new functions, as in scsh. They break down process status values as returned by waitpid.
1997-03-29 18:42:43 +00:00
else
return SCM_BOOL_F;
}
#undef FUNC_NAME
#endif /* WIFSTOPPED */
2001-06-26 17:53:09 +00:00
#ifdef HAVE_GETPPID
SCM_DEFINE (scm_getppid, "getppid", 0, 0, 0,
(),
"Return an integer representing the process ID of the parent\n"
"process.")
#define FUNC_NAME s_scm_getppid
{
return scm_from_int (getppid ());
}
#undef FUNC_NAME
2001-06-26 17:53:09 +00:00
#endif /* HAVE_GETPPID */
#ifdef HAVE_GETUID
SCM_DEFINE (scm_getuid, "getuid", 0, 0, 0,
(),
"Return an integer representing the current real user ID.")
#define FUNC_NAME s_scm_getuid
{
return scm_from_int (getuid ());
}
#undef FUNC_NAME
#endif /* HAVE_GETUID */
#ifdef HAVE_GETGID
SCM_DEFINE (scm_getgid, "getgid", 0, 0, 0,
(),
"Return an integer representing the current real group ID.")
#define FUNC_NAME s_scm_getgid
{
return scm_from_int (getgid ());
}
#undef FUNC_NAME
#endif /* HAVE_GETGID */
#ifdef HAVE_GETUID
SCM_DEFINE (scm_geteuid, "geteuid", 0, 0, 0,
(),
"Return an integer representing the current effective user ID.\n"
"If the system does not support effective IDs, then the real ID\n"
"is returned. @code{(provided? 'EIDs)} reports whether the\n"
"system supports effective IDs.")
#define FUNC_NAME s_scm_geteuid
{
#ifdef HAVE_GETEUID
return scm_from_int (geteuid ());
#else
return scm_from_int (getuid ());
#endif
}
#undef FUNC_NAME
#endif /* HAVE_GETUID */
#ifdef HAVE_GETGID
SCM_DEFINE (scm_getegid, "getegid", 0, 0, 0,
(),
"Return an integer representing the current effective group ID.\n"
"If the system does not support effective IDs, then the real ID\n"
"is returned. @code{(provided? 'EIDs)} reports whether the\n"
"system supports effective IDs.")
#define FUNC_NAME s_scm_getegid
{
#ifdef HAVE_GETEUID
return scm_from_int (getegid ());
#else
return scm_from_int (getgid ());
#endif
}
#undef FUNC_NAME
#endif /* HAVE_GETGID */
#ifdef HAVE_SETUID
SCM_DEFINE (scm_setuid, "setuid", 1, 0, 0,
(SCM id),
"Sets both the real and effective user IDs to the integer @var{id}, provided\n"
"the process has appropriate privileges.\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_setuid
{
if (setuid (scm_to_int (id)) != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETUID */
#ifdef HAVE_SETGID
SCM_DEFINE (scm_setgid, "setgid", 1, 0, 0,
(SCM id),
"Sets both the real and effective group IDs to the integer @var{id}, provided\n"
"the process has appropriate privileges.\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_setgid
{
if (setgid (scm_to_int (id)) != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETGID */
#ifdef HAVE_SETUID
SCM_DEFINE (scm_seteuid, "seteuid", 1, 0, 0,
(SCM id),
"Sets the effective user ID to the integer @var{id}, provided the process\n"
"has appropriate privileges. If effective IDs are not supported, the\n"
"real ID is set instead -- @code{(provided? 'EIDs)} reports whether the\n"
"system supports effective IDs.\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_seteuid
{
int rv;
#ifdef HAVE_SETEUID
rv = seteuid (scm_to_int (id));
#else
rv = setuid (scm_to_int (id));
#endif
if (rv != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETUID */
#ifdef HAVE_SETGID
SCM_DEFINE (scm_setegid, "setegid", 1, 0, 0,
(SCM id),
"Sets the effective group ID to the integer @var{id}, provided the process\n"
"has appropriate privileges. If effective IDs are not supported, the\n"
"real ID is set instead -- @code{(provided? 'EIDs)} reports whether the\n"
"system supports effective IDs.\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_setegid
{
int rv;
#ifdef HAVE_SETEGID
rv = setegid (scm_to_int (id));
#else
rv = setgid (scm_to_int (id));
#endif
if (rv != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETGID */
2001-06-26 17:53:09 +00:00
#ifdef HAVE_GETPGRP
SCM_DEFINE (scm_getpgrp, "getpgrp", 0, 0, 0,
(),
"Return an integer representing the current process group ID.\n"
"This is the POSIX definition, not BSD.")
#define FUNC_NAME s_scm_getpgrp
{
int (*fn)();
fn = (int (*) ()) getpgrp;
return scm_from_int (fn (0));
}
#undef FUNC_NAME
2001-06-26 17:53:09 +00:00
#endif /* HAVE_GETPGRP */
#ifdef HAVE_SETPGID
SCM_DEFINE (scm_setpgid, "setpgid", 2, 0, 0,
(SCM pid, SCM pgid),
"Move the process @var{pid} into the process group @var{pgid}. @var{pid} or\n"
"@var{pgid} must be integers: they can be zero to indicate the ID of the\n"
"current process.\n"
"Fails on systems that do not support job control.\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_setpgid
{
/* FIXME(?): may be known as setpgrp. */
if (setpgid (scm_to_int (pid), scm_to_int (pgid)) != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETPGID */
#ifdef HAVE_SETSID
SCM_DEFINE (scm_setsid, "setsid", 0, 0, 0,
(),
"Creates a new session. The current process becomes the session leader\n"
"and is put in a new process group. The process will be detached\n"
"from its controlling terminal if it has one.\n"
"The return value is an integer representing the new process group ID.")
#define FUNC_NAME s_scm_setsid
{
pid_t sid = setsid ();
if (sid == -1)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETSID */
#ifdef HAVE_GETSID
SCM_DEFINE (scm_getsid, "getsid", 1, 0, 0,
(SCM pid),
"Returns the session ID of process @var{pid}. (The session\n"
"ID of a process is the process group ID of its session leader.)")
#define FUNC_NAME s_scm_getsid
{
return scm_from_int (getsid (scm_to_int (pid)));
}
#undef FUNC_NAME
#endif /* HAVE_GETSID */
/* ttyname returns its result in a single static buffer, hence
scm_i_misc_mutex for thread safety. In glibc 2.3.2 two threads
continuously calling ttyname will otherwise get an overwrite quite
easily.
ttyname_r (when available) could be used instead of scm_i_misc_mutex, but
there's probably little to be gained in either speed or parallelism. */
2001-06-26 17:53:09 +00:00
#ifdef HAVE_TTYNAME
SCM_DEFINE (scm_ttyname, "ttyname", 1, 0, 0,
(SCM port),
"Return a string with the name of the serial terminal device\n"
"underlying @var{port}.")
#define FUNC_NAME s_scm_ttyname
{
char *result;
int fd, err;
2007-06-07 08:36:13 +00:00
SCM ret = SCM_BOOL_F;
port = SCM_COERCE_OUTPORT (port);
SCM_VALIDATE_OPPORT (1, port);
if (!SCM_FPORTP (port))
return SCM_BOOL_F;
* ioext.c (scm_do_read_line): Rewritten to use memchr to find the newline. A bit faster, and definitely hairier. (scm_read_line): Count newlines here instead. * strings.c (scm_take_str): New function. (scm_take0str): Reimplement in terms of scm_take_str. * strings.h (scm_take_str): New declaration. * ioext.c (scm_read_line): Use scm_take_str, to avoid copying the string. Add some simple-minded support for line buffered ports. * ports.h (SCM_BUFLINE): New flag for ports. * init.c (scm_init_standard_ports): Request line-buffering on the standard output port. * * ports.c (scm_mode_bits): Recognize 'l' as a request for line buffering. (scm_putc, scm_puts, scm_lfwrite): If the port is line-buffered, and there's a newline to be written, flush the port. * ports.c: (scm_lseek): clear buffers even if just reading current position. * fports.c (local_fclose): call local_fflush unconditionally. (various): don't use the scm_must... memory procs. * ports.h (scm_port): make read_pos a pointer to const. strports.c: take care of rw_active and rw_randow. fports.c: scm_fport_drain_input: removed. do it all in ports.c. strports.c (scm_mkstrport): check that pos is reasonable. ioext.c (scm_ftell, scm_fseek): use lseek. (SCM_CLEAR_BUFFERS): macro deleted. ioext.c (redirect_port: use ptob fflush, read_flush. ports.h (scm_ptobfuns): add ftruncate. ports.c (scm_newptob): set ftruncate. adjust ptob tables. * ports.c (scm_ftruncate): new procedure. fports.c (local_ftrunate), strports.c (str_ftruncate): new procs. strports.c (st_seek, st_grow_port): new procs. fports.h (scm_port): change size types from int to off_t. ports.c (scm_init_ports): initialise the seek symbols here instead of in ioext.c. strports.c (scm_call_with_output_string): start with an empty string, so seek and ftruncate can be used. * ports.h (scm_ptobfuns): add a read_flush procedure which is the equivalent to fflush for the read buffer. * ports.c (scm_newptob): set read_flush. ports.c (void_port_ptob): set read_flush. fports.c (local_read_flush): new proc. add to ptob. strport.c (st_read_flush): likewise. vport.c (sf_read_flush): likewise. fports.h (struct scm_fport): remove random member. there's nothing left but fdes. leaving it as a struct to allow for future changes. fports.c: replace usage of scm_fport::random with scm_port::rw_random. ports.c: (scm_putc, scm_puts, scm_lfwrite): call the read_flush ptob proc if the read buffer is filled. * ports.h (scm_port): add a rw_random member and replace reading and writing members with rw_active member. SCM_PORT_READ/SCM_PORT_WRITE: new values. * ports.h (struct scm_port_table): add writing and reading members to replace write_needs_seek: it isn't good enough for non-fports. ports.c, ioext.c, fports.c: corresponding changes. (struct scm_port_table): give it a typedef and rename to scm_port. ports.c, fports.c, strports.c, vports.c, ioext.c, ports.h: corresponding changes. * ports.c (scm_newptob): bugfix: set seek member. * * (scm_lseek): new procedure, using code from ioext.c:scm_fseek and generalised to all port types. * scmsigs.c (scm_init_scmsigs): set the SA_RESTART flag for all signals (it was only being done for handlers installed from Scheme). Otherwise (for example) SIGSTOP followed by SIGCONT on an interpreter waiting for input caused an EINTR error from read. * ports.h (struct scm_port_table): make all the char members unsigned, so they convert to int without becoming negative if large. * fports.c (scm_fdes_wait_for_input): forgot to check compilation with threads enabled. rename this procedure to fport_wait_for_input and take a port instead of a fdes. use scm_fport_input_waiting_p instead of scm_fdes_waiting_p. * readline.c (scm_readline): Applied a patch from Greg Harvey to get readline support working again: use fdopen to get FILE objects. * gc.c (scm_init_storage): install an atexit proc to flush the ports. (cleanup): the new proc. it sets a global variable which can be checked by the ptob flush procs to avoid trying to throw exceptions during exit. not very pleasant but it seems more reliable. * fports.c (local_fflush): check terminating variable and if set don't throw exception. * CHECKME: that the atexit proc is installed if unexec used. * throw.c (scm_handle_by_message): don't flush all ports here. it still causes bus errors. * fports.h (SCM_FPORT_CLEAR_BUFFERS): rename to SCM_CLEAR_BUFFERS and move to ioext.c. * fports.c (scm_fdes_waiting_p): merged into fport_input_waiting_p. * ports.c (scm_char_ready_p): check the port buffer and call the ptob entry if needed. * ports.h (scm_ptobfuns): input_waiting_p added. change all the ptob initialisers. use it in char-ready * ioext.c (scm_do_read_line): moved from ports.c. make it static. * vports.c (sfflush): modified to write a char (since softports currently use shortbuf.) * fports.c (scm_standard_stream_to_port): moved to init.c and made static. * init.c (scm_init_standard_ports): make stdout and stderr unbuffered if connected to a terminal. with stdio they were line-buffered by default. * ports.h (scm_ptobfuns): change fflush return to void. change flush proc definitions. * strports.c (scm_call_with_output_string): get size from buffer instead of port stream. (scm_strprint_obj): likewise. (st_flush): new proc. * ports.h (struct scm_port_table): added write_end member, as an optimisation. set it where write_buf_size is set. * ports.h (struct scm_port_table): change stream from void * back to SCM. SCM presumably must be large enough to hold a pointer (and probably vice versa but who knows.) (SCM_SSTREAM): deleted. change users back to SCM_STREAM. (scm_puts): rewritten * fports.c (local_ffwrite, local_fputs): removed. * strports.c (stputc, stputs, stwrite): dyked out (FIXME) * vports.c (sfputc, sfputs, sfwrite) likewise. * ports.c (write_void_port, puts_void_port): removed. (putc_void_port, getc_void_port, fgets_void_port): likewise. * ports.c (scm_lfwrite): rewritten using fport.c version. * fports.c (local_fputc): deleted. * ports.c (scm_add_to_port_table): initialise write_needs_seek. * ports.h (scm_ptobfuns): add seek function pointer. * fports.c: set it to local_seek, new procedure. * fports.h (SCM_MAYBE_DRAIN_INPUT): moved to ports.c. use ptob for seek. take ptob instead of fport arg. * ports.h (struct scm_port_table): new member write_needs_seek, replaces reading member in fport struct. * vports.c (sfgetc): store the getted char into the buffer. rename to sf_fill_buffer and install it for fill-buffer in ptob. the Scheme interface is still a procedure that gets a char. (scm_make_soft_port): set up the port buffer (shortbuf). * fports.c (local_fgetc, local_fgets): deleted. * strports.c (stgetc): likewise. * ports.c: scm_generic_fgets: likewise. * ports.h (scm_ptobfuns): add fill_buffer. * ports.c (scm_newptob): assign it. * strports.c (scm_mkstrport): set up the buffer. put just the string into the stream, not cons (pos stream). (stfill_buffer): new proc. * ports.h: fport buffer moved into port table: to be used for all port types. * throw.c (scm_handle_by_message): flush ports at exit. * socket.c (scm_sock_fd_to_port): use scm_fdes_to_port. (scm_getsockopt, scm_setsockopt, scm_shutdown, scm_connect, scm_bind, scm_listen, scm_accept, scm_getsockname, scm_getpeername, scm_recv, scm_send, scm_recvfrom, scm_sendto, use SCM_FPORT_FDES. use SCM_OPFPORTP not SCM_FPORTP. * posix.c (scm_getgroups): use SCM_ALLOW/DEFER_INTS. (scm_ttyname): use SCM_FPORT_FDES. (scm_tcgetpgrp, scm_tcsetpgrp): likewise. * ioext.c (scm_isatty_p): use SCM_FPORT_FDES. (scm_fdes_to_ports): modified. (scm_fdopen): use scm_fdes_to_port. * ports.c (scm_init_ports): don't try to flush ports using atexit(). it's too late, errors will cause SEGV. * fports.c (scm_fport_buffer_add): new procedure. * fports.h (SCM_FDES_RANDOM_P): new macro. use it in scm_fdes_to_port and scm_redirect_port. * ioext.c (scm_redirect_port): use setvbuf to set buffers in the new port. reset fp->random. * fports.c (scm_fdes_to_port), ports.c (scm_void_port), filesys.c (scm_opendir): restore defer interrupts while the port is constructed. * (scm_setvbuf): if mode is _IOFBF and size is not supplied, derive buffer size from fdes or use a default. (scm_fdes_to_port): use setvbuf instead of creating the buffers directly. vports.c (various places): use SCM_SSTREAM. strports.c: likewise. * gdbint.c: likewise. * ports.h (SCM_SSTREAM): new macro. * fports.c (scm_input_waiting_p): use scm_return_first, since port may be removed from the stack by the tail call to scm_fdes_waiting_p. * fports.h (SCM_CLEAR_BUFFERS): new macro. * ports.c (scm_force_output): call scm_fflush. * print.c (scm_newline): don't check errno for EPIPE (it wouldn't * reach this point.) don't flush port (if scm_cur_outp). * fports.h (SCM_FPORT_FDES): new macro. * vports.c (sfflush): don't need to set errno. * ports.c: install scm_flush_all_ports to be run on exit. ports.c fports.c ioext.c posix.c socket.c net_db.c filesys.c: removed all uses of SCM_DEFER/ALLOW ints for now. they were mainly just protecting errno. some may need to be put back. * scmsigs.c (take_signal): save and restore errno while this proc runs. *fports.c (print_pipe_port, local_pclose, scm_pipob): deleted. * open-pipe, close-pipe are emulated in (ice-9 popen) ports.c (scm_ports_prehistory): don't init scm_pipob. ports.h (scm_tc16_pipe): deleted. posix.c (scm_open_pipe, scm_close_pipe): deleted. * ioext.c (scm_primitive_move_to_fdes): use fport. * fport.c (scm_fport_fill_buffer): flush write buffer if needed. change arg type from scm_fport to SCM port. fport.h (SCM_SETFDES): removed. (SCM_MAYBE_DRAIN_INPUT): new macro. * ioext.c (scm_dup_to_fdes): use SCM_FSTREAM. (scm_ftell): always use lseek and account for the buffer. (scm_fileno): use fport buffer. (scm_fseek): clear fport buffers. always use lseek. * posix.c (scm_pipe): use fport buffer. * unif.c: include fports.h instead of genio.h. * fports.c (scm_fdes_wait_for_input, scm_fport_fill_buffer): new procedures. (local_fgetc): use them. (local_ffwrite): use buffer. (local_fgets): use buffer. (scm_setbuf0): deleted. (scm_setvbuf): set the buffer. (scm_setfileno): deleted. (scm_evict_ports): set fdes directly. * (scm_freopen): deleted. doesn't seem useful in Guile. (scm_stdio_to_port): deleted. fports.h (struct scm_fport): add shortbuf member to avoid separate code for unbuffered ports. (SCM_FPORTP, SCM_OPFPORTP, SCM_OPINFPORTP, SCM_OPOUTFPORTP): moved from ports.h. * genio.c, genio.h: move contents into ports.c, ports.h. The division wasn't useful. * fports.c, fports.h (scm_fport_drain_input): new procedure. * ports.c (scm_drain_input): call scm_fport_drain_input. * scm_fdes_waiting_p: new procedure. * fports.c (scm_fdes_to_port): allocate read and/or write buffers. (scm_input_waiting_p): check the buffer. (local_fgetc, local_fflush, local_fputc): likewise. * fports.h (scm_fport): read/write_buf,_pos,_buf_end,,_buf_size: new members. * init.c (scm_init_standard_ports): pass fdes instead of FILE *. * * ports.c (scm_drain_input): new procedure. ports.h: prototype. * fports.c (FPORT_READ_SAFE, FPORT_WRITE_SAFE, FPORT_ALL_OKAY, pre_read, pre_write): removed. (local_fputc, local_fputs, local_ffwrite): use write, not stdio. (scm_standard_stream_to_port): change first arg from FILE * to int fdes. (local_fflush): flush fdes, not FILE *. * fports.h (SCM_NOFTELL): removed. * genio.c, ports.c: don't include filesys.h. * genio.c (scm_getc): don't use scm_internal_select if FPORT. do it in fports.c:local_fgetc. * genio.c: don't use SCM_SYSCALL when calling ptob procedures. do it where it's needed in the port smobs. * filesys.c (scm_input_waiting_p): moved to fports.c, stdio buffer support removed. take SCM arg, not FILE *. * filesys.h: prototype moved too. * fports.c (scm_fdes_to_port): new procedure. (local_fgetc): use read not fgetc. (local_fclose): use close, not fclose. (local_fgets): use read, not fgets * fports.h: prototype for scm_fdes_to_port. * fports.h (scm_fport): new struct. * fports.c (scm_open_file): use open, not fopen. #include fcntl.h * ports.h (struct scm_port_table): change stream from SCM to void *. * ports.c (scm_add_to_port_table): check for memory allocation error. (scm_prinport): remove MSDOS hair. (scm_void_port): set stream to 0 instead of SCM_BOOL_F. (scm_close_port): don't throw errors: do it in fports.c.
1999-06-09 12:19:58 +00:00
fd = SCM_FPORT_FDES (port);
2005-03-02 20:42:01 +00:00
scm_i_scm_pthread_mutex_lock (&scm_i_misc_mutex);
2007-06-07 08:36:13 +00:00
SCM_SYSCALL (result = ttyname (fd));
err = errno;
2007-06-07 08:36:13 +00:00
if (result != NULL)
result = strdup (result);
2005-03-02 20:42:01 +00:00
scm_i_pthread_mutex_unlock (&scm_i_misc_mutex);
if (!result)
{
errno = err;
SCM_SYSERROR;
}
2007-06-07 08:36:13 +00:00
else
ret = scm_take_locale_string (result);
return ret;
}
#undef FUNC_NAME
2001-06-26 17:53:09 +00:00
#endif /* HAVE_TTYNAME */
/* For thread safety "buf" is used instead of NULL for the ctermid static
buffer. Actually it's unlikely the controlling terminal will change
during program execution, and indeed on glibc (2.3.2) it's always just
"/dev/tty", but L_ctermid on the stack is easy and fast and guarantees
safety everywhere. */
#ifdef HAVE_CTERMID
SCM_DEFINE (scm_ctermid, "ctermid", 0, 0, 0,
(),
"Return a string containing the file name of the controlling\n"
"terminal for the current process.")
#define FUNC_NAME s_scm_ctermid
{
char buf[L_ctermid];
char *result = ctermid (buf);
if (*result == '\0')
SCM_SYSERROR;
return scm_from_locale_string (result);
}
#undef FUNC_NAME
#endif /* HAVE_CTERMID */
#ifdef HAVE_TCGETPGRP
SCM_DEFINE (scm_tcgetpgrp, "tcgetpgrp", 1, 0, 0,
(SCM port),
"Return the process group ID of the foreground process group\n"
"associated with the terminal open on the file descriptor\n"
"underlying @var{port}.\n"
"\n"
"If there is no foreground process group, the return value is a\n"
"number greater than 1 that does not match the process group ID\n"
"of any existing process group. This can happen if all of the\n"
"processes in the job that was formerly the foreground job have\n"
"terminated, and no other job has yet been moved into the\n"
"foreground.")
#define FUNC_NAME s_scm_tcgetpgrp
{
int fd;
pid_t pgid;
port = SCM_COERCE_OUTPORT (port);
SCM_VALIDATE_OPFPORT (1, port);
* ioext.c (scm_do_read_line): Rewritten to use memchr to find the newline. A bit faster, and definitely hairier. (scm_read_line): Count newlines here instead. * strings.c (scm_take_str): New function. (scm_take0str): Reimplement in terms of scm_take_str. * strings.h (scm_take_str): New declaration. * ioext.c (scm_read_line): Use scm_take_str, to avoid copying the string. Add some simple-minded support for line buffered ports. * ports.h (SCM_BUFLINE): New flag for ports. * init.c (scm_init_standard_ports): Request line-buffering on the standard output port. * * ports.c (scm_mode_bits): Recognize 'l' as a request for line buffering. (scm_putc, scm_puts, scm_lfwrite): If the port is line-buffered, and there's a newline to be written, flush the port. * ports.c: (scm_lseek): clear buffers even if just reading current position. * fports.c (local_fclose): call local_fflush unconditionally. (various): don't use the scm_must... memory procs. * ports.h (scm_port): make read_pos a pointer to const. strports.c: take care of rw_active and rw_randow. fports.c: scm_fport_drain_input: removed. do it all in ports.c. strports.c (scm_mkstrport): check that pos is reasonable. ioext.c (scm_ftell, scm_fseek): use lseek. (SCM_CLEAR_BUFFERS): macro deleted. ioext.c (redirect_port: use ptob fflush, read_flush. ports.h (scm_ptobfuns): add ftruncate. ports.c (scm_newptob): set ftruncate. adjust ptob tables. * ports.c (scm_ftruncate): new procedure. fports.c (local_ftrunate), strports.c (str_ftruncate): new procs. strports.c (st_seek, st_grow_port): new procs. fports.h (scm_port): change size types from int to off_t. ports.c (scm_init_ports): initialise the seek symbols here instead of in ioext.c. strports.c (scm_call_with_output_string): start with an empty string, so seek and ftruncate can be used. * ports.h (scm_ptobfuns): add a read_flush procedure which is the equivalent to fflush for the read buffer. * ports.c (scm_newptob): set read_flush. ports.c (void_port_ptob): set read_flush. fports.c (local_read_flush): new proc. add to ptob. strport.c (st_read_flush): likewise. vport.c (sf_read_flush): likewise. fports.h (struct scm_fport): remove random member. there's nothing left but fdes. leaving it as a struct to allow for future changes. fports.c: replace usage of scm_fport::random with scm_port::rw_random. ports.c: (scm_putc, scm_puts, scm_lfwrite): call the read_flush ptob proc if the read buffer is filled. * ports.h (scm_port): add a rw_random member and replace reading and writing members with rw_active member. SCM_PORT_READ/SCM_PORT_WRITE: new values. * ports.h (struct scm_port_table): add writing and reading members to replace write_needs_seek: it isn't good enough for non-fports. ports.c, ioext.c, fports.c: corresponding changes. (struct scm_port_table): give it a typedef and rename to scm_port. ports.c, fports.c, strports.c, vports.c, ioext.c, ports.h: corresponding changes. * ports.c (scm_newptob): bugfix: set seek member. * * (scm_lseek): new procedure, using code from ioext.c:scm_fseek and generalised to all port types. * scmsigs.c (scm_init_scmsigs): set the SA_RESTART flag for all signals (it was only being done for handlers installed from Scheme). Otherwise (for example) SIGSTOP followed by SIGCONT on an interpreter waiting for input caused an EINTR error from read. * ports.h (struct scm_port_table): make all the char members unsigned, so they convert to int without becoming negative if large. * fports.c (scm_fdes_wait_for_input): forgot to check compilation with threads enabled. rename this procedure to fport_wait_for_input and take a port instead of a fdes. use scm_fport_input_waiting_p instead of scm_fdes_waiting_p. * readline.c (scm_readline): Applied a patch from Greg Harvey to get readline support working again: use fdopen to get FILE objects. * gc.c (scm_init_storage): install an atexit proc to flush the ports. (cleanup): the new proc. it sets a global variable which can be checked by the ptob flush procs to avoid trying to throw exceptions during exit. not very pleasant but it seems more reliable. * fports.c (local_fflush): check terminating variable and if set don't throw exception. * CHECKME: that the atexit proc is installed if unexec used. * throw.c (scm_handle_by_message): don't flush all ports here. it still causes bus errors. * fports.h (SCM_FPORT_CLEAR_BUFFERS): rename to SCM_CLEAR_BUFFERS and move to ioext.c. * fports.c (scm_fdes_waiting_p): merged into fport_input_waiting_p. * ports.c (scm_char_ready_p): check the port buffer and call the ptob entry if needed. * ports.h (scm_ptobfuns): input_waiting_p added. change all the ptob initialisers. use it in char-ready * ioext.c (scm_do_read_line): moved from ports.c. make it static. * vports.c (sfflush): modified to write a char (since softports currently use shortbuf.) * fports.c (scm_standard_stream_to_port): moved to init.c and made static. * init.c (scm_init_standard_ports): make stdout and stderr unbuffered if connected to a terminal. with stdio they were line-buffered by default. * ports.h (scm_ptobfuns): change fflush return to void. change flush proc definitions. * strports.c (scm_call_with_output_string): get size from buffer instead of port stream. (scm_strprint_obj): likewise. (st_flush): new proc. * ports.h (struct scm_port_table): added write_end member, as an optimisation. set it where write_buf_size is set. * ports.h (struct scm_port_table): change stream from void * back to SCM. SCM presumably must be large enough to hold a pointer (and probably vice versa but who knows.) (SCM_SSTREAM): deleted. change users back to SCM_STREAM. (scm_puts): rewritten * fports.c (local_ffwrite, local_fputs): removed. * strports.c (stputc, stputs, stwrite): dyked out (FIXME) * vports.c (sfputc, sfputs, sfwrite) likewise. * ports.c (write_void_port, puts_void_port): removed. (putc_void_port, getc_void_port, fgets_void_port): likewise. * ports.c (scm_lfwrite): rewritten using fport.c version. * fports.c (local_fputc): deleted. * ports.c (scm_add_to_port_table): initialise write_needs_seek. * ports.h (scm_ptobfuns): add seek function pointer. * fports.c: set it to local_seek, new procedure. * fports.h (SCM_MAYBE_DRAIN_INPUT): moved to ports.c. use ptob for seek. take ptob instead of fport arg. * ports.h (struct scm_port_table): new member write_needs_seek, replaces reading member in fport struct. * vports.c (sfgetc): store the getted char into the buffer. rename to sf_fill_buffer and install it for fill-buffer in ptob. the Scheme interface is still a procedure that gets a char. (scm_make_soft_port): set up the port buffer (shortbuf). * fports.c (local_fgetc, local_fgets): deleted. * strports.c (stgetc): likewise. * ports.c: scm_generic_fgets: likewise. * ports.h (scm_ptobfuns): add fill_buffer. * ports.c (scm_newptob): assign it. * strports.c (scm_mkstrport): set up the buffer. put just the string into the stream, not cons (pos stream). (stfill_buffer): new proc. * ports.h: fport buffer moved into port table: to be used for all port types. * throw.c (scm_handle_by_message): flush ports at exit. * socket.c (scm_sock_fd_to_port): use scm_fdes_to_port. (scm_getsockopt, scm_setsockopt, scm_shutdown, scm_connect, scm_bind, scm_listen, scm_accept, scm_getsockname, scm_getpeername, scm_recv, scm_send, scm_recvfrom, scm_sendto, use SCM_FPORT_FDES. use SCM_OPFPORTP not SCM_FPORTP. * posix.c (scm_getgroups): use SCM_ALLOW/DEFER_INTS. (scm_ttyname): use SCM_FPORT_FDES. (scm_tcgetpgrp, scm_tcsetpgrp): likewise. * ioext.c (scm_isatty_p): use SCM_FPORT_FDES. (scm_fdes_to_ports): modified. (scm_fdopen): use scm_fdes_to_port. * ports.c (scm_init_ports): don't try to flush ports using atexit(). it's too late, errors will cause SEGV. * fports.c (scm_fport_buffer_add): new procedure. * fports.h (SCM_FDES_RANDOM_P): new macro. use it in scm_fdes_to_port and scm_redirect_port. * ioext.c (scm_redirect_port): use setvbuf to set buffers in the new port. reset fp->random. * fports.c (scm_fdes_to_port), ports.c (scm_void_port), filesys.c (scm_opendir): restore defer interrupts while the port is constructed. * (scm_setvbuf): if mode is _IOFBF and size is not supplied, derive buffer size from fdes or use a default. (scm_fdes_to_port): use setvbuf instead of creating the buffers directly. vports.c (various places): use SCM_SSTREAM. strports.c: likewise. * gdbint.c: likewise. * ports.h (SCM_SSTREAM): new macro. * fports.c (scm_input_waiting_p): use scm_return_first, since port may be removed from the stack by the tail call to scm_fdes_waiting_p. * fports.h (SCM_CLEAR_BUFFERS): new macro. * ports.c (scm_force_output): call scm_fflush. * print.c (scm_newline): don't check errno for EPIPE (it wouldn't * reach this point.) don't flush port (if scm_cur_outp). * fports.h (SCM_FPORT_FDES): new macro. * vports.c (sfflush): don't need to set errno. * ports.c: install scm_flush_all_ports to be run on exit. ports.c fports.c ioext.c posix.c socket.c net_db.c filesys.c: removed all uses of SCM_DEFER/ALLOW ints for now. they were mainly just protecting errno. some may need to be put back. * scmsigs.c (take_signal): save and restore errno while this proc runs. *fports.c (print_pipe_port, local_pclose, scm_pipob): deleted. * open-pipe, close-pipe are emulated in (ice-9 popen) ports.c (scm_ports_prehistory): don't init scm_pipob. ports.h (scm_tc16_pipe): deleted. posix.c (scm_open_pipe, scm_close_pipe): deleted. * ioext.c (scm_primitive_move_to_fdes): use fport. * fport.c (scm_fport_fill_buffer): flush write buffer if needed. change arg type from scm_fport to SCM port. fport.h (SCM_SETFDES): removed. (SCM_MAYBE_DRAIN_INPUT): new macro. * ioext.c (scm_dup_to_fdes): use SCM_FSTREAM. (scm_ftell): always use lseek and account for the buffer. (scm_fileno): use fport buffer. (scm_fseek): clear fport buffers. always use lseek. * posix.c (scm_pipe): use fport buffer. * unif.c: include fports.h instead of genio.h. * fports.c (scm_fdes_wait_for_input, scm_fport_fill_buffer): new procedures. (local_fgetc): use them. (local_ffwrite): use buffer. (local_fgets): use buffer. (scm_setbuf0): deleted. (scm_setvbuf): set the buffer. (scm_setfileno): deleted. (scm_evict_ports): set fdes directly. * (scm_freopen): deleted. doesn't seem useful in Guile. (scm_stdio_to_port): deleted. fports.h (struct scm_fport): add shortbuf member to avoid separate code for unbuffered ports. (SCM_FPORTP, SCM_OPFPORTP, SCM_OPINFPORTP, SCM_OPOUTFPORTP): moved from ports.h. * genio.c, genio.h: move contents into ports.c, ports.h. The division wasn't useful. * fports.c, fports.h (scm_fport_drain_input): new procedure. * ports.c (scm_drain_input): call scm_fport_drain_input. * scm_fdes_waiting_p: new procedure. * fports.c (scm_fdes_to_port): allocate read and/or write buffers. (scm_input_waiting_p): check the buffer. (local_fgetc, local_fflush, local_fputc): likewise. * fports.h (scm_fport): read/write_buf,_pos,_buf_end,,_buf_size: new members. * init.c (scm_init_standard_ports): pass fdes instead of FILE *. * * ports.c (scm_drain_input): new procedure. ports.h: prototype. * fports.c (FPORT_READ_SAFE, FPORT_WRITE_SAFE, FPORT_ALL_OKAY, pre_read, pre_write): removed. (local_fputc, local_fputs, local_ffwrite): use write, not stdio. (scm_standard_stream_to_port): change first arg from FILE * to int fdes. (local_fflush): flush fdes, not FILE *. * fports.h (SCM_NOFTELL): removed. * genio.c, ports.c: don't include filesys.h. * genio.c (scm_getc): don't use scm_internal_select if FPORT. do it in fports.c:local_fgetc. * genio.c: don't use SCM_SYSCALL when calling ptob procedures. do it where it's needed in the port smobs. * filesys.c (scm_input_waiting_p): moved to fports.c, stdio buffer support removed. take SCM arg, not FILE *. * filesys.h: prototype moved too. * fports.c (scm_fdes_to_port): new procedure. (local_fgetc): use read not fgetc. (local_fclose): use close, not fclose. (local_fgets): use read, not fgets * fports.h: prototype for scm_fdes_to_port. * fports.h (scm_fport): new struct. * fports.c (scm_open_file): use open, not fopen. #include fcntl.h * ports.h (struct scm_port_table): change stream from SCM to void *. * ports.c (scm_add_to_port_table): check for memory allocation error. (scm_prinport): remove MSDOS hair. (scm_void_port): set stream to 0 instead of SCM_BOOL_F. (scm_close_port): don't throw errors: do it in fports.c.
1999-06-09 12:19:58 +00:00
fd = SCM_FPORT_FDES (port);
if ((pgid = tcgetpgrp (fd)) == -1)
SCM_SYSERROR;
return scm_from_int (pgid);
}
#undef FUNC_NAME
#endif /* HAVE_TCGETPGRP */
#ifdef HAVE_TCSETPGRP
SCM_DEFINE (scm_tcsetpgrp, "tcsetpgrp", 2, 0, 0,
(SCM port, SCM pgid),
"Set the foreground process group ID for the terminal used by the file\n"
"descriptor underlying @var{port} to the integer @var{pgid}.\n"
"The calling process\n"
"must be a member of the same session as @var{pgid} and must have the same\n"
"controlling terminal. The return value is unspecified.")
#define FUNC_NAME s_scm_tcsetpgrp
{
int fd;
port = SCM_COERCE_OUTPORT (port);
SCM_VALIDATE_OPFPORT (1, port);
* ioext.c (scm_do_read_line): Rewritten to use memchr to find the newline. A bit faster, and definitely hairier. (scm_read_line): Count newlines here instead. * strings.c (scm_take_str): New function. (scm_take0str): Reimplement in terms of scm_take_str. * strings.h (scm_take_str): New declaration. * ioext.c (scm_read_line): Use scm_take_str, to avoid copying the string. Add some simple-minded support for line buffered ports. * ports.h (SCM_BUFLINE): New flag for ports. * init.c (scm_init_standard_ports): Request line-buffering on the standard output port. * * ports.c (scm_mode_bits): Recognize 'l' as a request for line buffering. (scm_putc, scm_puts, scm_lfwrite): If the port is line-buffered, and there's a newline to be written, flush the port. * ports.c: (scm_lseek): clear buffers even if just reading current position. * fports.c (local_fclose): call local_fflush unconditionally. (various): don't use the scm_must... memory procs. * ports.h (scm_port): make read_pos a pointer to const. strports.c: take care of rw_active and rw_randow. fports.c: scm_fport_drain_input: removed. do it all in ports.c. strports.c (scm_mkstrport): check that pos is reasonable. ioext.c (scm_ftell, scm_fseek): use lseek. (SCM_CLEAR_BUFFERS): macro deleted. ioext.c (redirect_port: use ptob fflush, read_flush. ports.h (scm_ptobfuns): add ftruncate. ports.c (scm_newptob): set ftruncate. adjust ptob tables. * ports.c (scm_ftruncate): new procedure. fports.c (local_ftrunate), strports.c (str_ftruncate): new procs. strports.c (st_seek, st_grow_port): new procs. fports.h (scm_port): change size types from int to off_t. ports.c (scm_init_ports): initialise the seek symbols here instead of in ioext.c. strports.c (scm_call_with_output_string): start with an empty string, so seek and ftruncate can be used. * ports.h (scm_ptobfuns): add a read_flush procedure which is the equivalent to fflush for the read buffer. * ports.c (scm_newptob): set read_flush. ports.c (void_port_ptob): set read_flush. fports.c (local_read_flush): new proc. add to ptob. strport.c (st_read_flush): likewise. vport.c (sf_read_flush): likewise. fports.h (struct scm_fport): remove random member. there's nothing left but fdes. leaving it as a struct to allow for future changes. fports.c: replace usage of scm_fport::random with scm_port::rw_random. ports.c: (scm_putc, scm_puts, scm_lfwrite): call the read_flush ptob proc if the read buffer is filled. * ports.h (scm_port): add a rw_random member and replace reading and writing members with rw_active member. SCM_PORT_READ/SCM_PORT_WRITE: new values. * ports.h (struct scm_port_table): add writing and reading members to replace write_needs_seek: it isn't good enough for non-fports. ports.c, ioext.c, fports.c: corresponding changes. (struct scm_port_table): give it a typedef and rename to scm_port. ports.c, fports.c, strports.c, vports.c, ioext.c, ports.h: corresponding changes. * ports.c (scm_newptob): bugfix: set seek member. * * (scm_lseek): new procedure, using code from ioext.c:scm_fseek and generalised to all port types. * scmsigs.c (scm_init_scmsigs): set the SA_RESTART flag for all signals (it was only being done for handlers installed from Scheme). Otherwise (for example) SIGSTOP followed by SIGCONT on an interpreter waiting for input caused an EINTR error from read. * ports.h (struct scm_port_table): make all the char members unsigned, so they convert to int without becoming negative if large. * fports.c (scm_fdes_wait_for_input): forgot to check compilation with threads enabled. rename this procedure to fport_wait_for_input and take a port instead of a fdes. use scm_fport_input_waiting_p instead of scm_fdes_waiting_p. * readline.c (scm_readline): Applied a patch from Greg Harvey to get readline support working again: use fdopen to get FILE objects. * gc.c (scm_init_storage): install an atexit proc to flush the ports. (cleanup): the new proc. it sets a global variable which can be checked by the ptob flush procs to avoid trying to throw exceptions during exit. not very pleasant but it seems more reliable. * fports.c (local_fflush): check terminating variable and if set don't throw exception. * CHECKME: that the atexit proc is installed if unexec used. * throw.c (scm_handle_by_message): don't flush all ports here. it still causes bus errors. * fports.h (SCM_FPORT_CLEAR_BUFFERS): rename to SCM_CLEAR_BUFFERS and move to ioext.c. * fports.c (scm_fdes_waiting_p): merged into fport_input_waiting_p. * ports.c (scm_char_ready_p): check the port buffer and call the ptob entry if needed. * ports.h (scm_ptobfuns): input_waiting_p added. change all the ptob initialisers. use it in char-ready * ioext.c (scm_do_read_line): moved from ports.c. make it static. * vports.c (sfflush): modified to write a char (since softports currently use shortbuf.) * fports.c (scm_standard_stream_to_port): moved to init.c and made static. * init.c (scm_init_standard_ports): make stdout and stderr unbuffered if connected to a terminal. with stdio they were line-buffered by default. * ports.h (scm_ptobfuns): change fflush return to void. change flush proc definitions. * strports.c (scm_call_with_output_string): get size from buffer instead of port stream. (scm_strprint_obj): likewise. (st_flush): new proc. * ports.h (struct scm_port_table): added write_end member, as an optimisation. set it where write_buf_size is set. * ports.h (struct scm_port_table): change stream from void * back to SCM. SCM presumably must be large enough to hold a pointer (and probably vice versa but who knows.) (SCM_SSTREAM): deleted. change users back to SCM_STREAM. (scm_puts): rewritten * fports.c (local_ffwrite, local_fputs): removed. * strports.c (stputc, stputs, stwrite): dyked out (FIXME) * vports.c (sfputc, sfputs, sfwrite) likewise. * ports.c (write_void_port, puts_void_port): removed. (putc_void_port, getc_void_port, fgets_void_port): likewise. * ports.c (scm_lfwrite): rewritten using fport.c version. * fports.c (local_fputc): deleted. * ports.c (scm_add_to_port_table): initialise write_needs_seek. * ports.h (scm_ptobfuns): add seek function pointer. * fports.c: set it to local_seek, new procedure. * fports.h (SCM_MAYBE_DRAIN_INPUT): moved to ports.c. use ptob for seek. take ptob instead of fport arg. * ports.h (struct scm_port_table): new member write_needs_seek, replaces reading member in fport struct. * vports.c (sfgetc): store the getted char into the buffer. rename to sf_fill_buffer and install it for fill-buffer in ptob. the Scheme interface is still a procedure that gets a char. (scm_make_soft_port): set up the port buffer (shortbuf). * fports.c (local_fgetc, local_fgets): deleted. * strports.c (stgetc): likewise. * ports.c: scm_generic_fgets: likewise. * ports.h (scm_ptobfuns): add fill_buffer. * ports.c (scm_newptob): assign it. * strports.c (scm_mkstrport): set up the buffer. put just the string into the stream, not cons (pos stream). (stfill_buffer): new proc. * ports.h: fport buffer moved into port table: to be used for all port types. * throw.c (scm_handle_by_message): flush ports at exit. * socket.c (scm_sock_fd_to_port): use scm_fdes_to_port. (scm_getsockopt, scm_setsockopt, scm_shutdown, scm_connect, scm_bind, scm_listen, scm_accept, scm_getsockname, scm_getpeername, scm_recv, scm_send, scm_recvfrom, scm_sendto, use SCM_FPORT_FDES. use SCM_OPFPORTP not SCM_FPORTP. * posix.c (scm_getgroups): use SCM_ALLOW/DEFER_INTS. (scm_ttyname): use SCM_FPORT_FDES. (scm_tcgetpgrp, scm_tcsetpgrp): likewise. * ioext.c (scm_isatty_p): use SCM_FPORT_FDES. (scm_fdes_to_ports): modified. (scm_fdopen): use scm_fdes_to_port. * ports.c (scm_init_ports): don't try to flush ports using atexit(). it's too late, errors will cause SEGV. * fports.c (scm_fport_buffer_add): new procedure. * fports.h (SCM_FDES_RANDOM_P): new macro. use it in scm_fdes_to_port and scm_redirect_port. * ioext.c (scm_redirect_port): use setvbuf to set buffers in the new port. reset fp->random. * fports.c (scm_fdes_to_port), ports.c (scm_void_port), filesys.c (scm_opendir): restore defer interrupts while the port is constructed. * (scm_setvbuf): if mode is _IOFBF and size is not supplied, derive buffer size from fdes or use a default. (scm_fdes_to_port): use setvbuf instead of creating the buffers directly. vports.c (various places): use SCM_SSTREAM. strports.c: likewise. * gdbint.c: likewise. * ports.h (SCM_SSTREAM): new macro. * fports.c (scm_input_waiting_p): use scm_return_first, since port may be removed from the stack by the tail call to scm_fdes_waiting_p. * fports.h (SCM_CLEAR_BUFFERS): new macro. * ports.c (scm_force_output): call scm_fflush. * print.c (scm_newline): don't check errno for EPIPE (it wouldn't * reach this point.) don't flush port (if scm_cur_outp). * fports.h (SCM_FPORT_FDES): new macro. * vports.c (sfflush): don't need to set errno. * ports.c: install scm_flush_all_ports to be run on exit. ports.c fports.c ioext.c posix.c socket.c net_db.c filesys.c: removed all uses of SCM_DEFER/ALLOW ints for now. they were mainly just protecting errno. some may need to be put back. * scmsigs.c (take_signal): save and restore errno while this proc runs. *fports.c (print_pipe_port, local_pclose, scm_pipob): deleted. * open-pipe, close-pipe are emulated in (ice-9 popen) ports.c (scm_ports_prehistory): don't init scm_pipob. ports.h (scm_tc16_pipe): deleted. posix.c (scm_open_pipe, scm_close_pipe): deleted. * ioext.c (scm_primitive_move_to_fdes): use fport. * fport.c (scm_fport_fill_buffer): flush write buffer if needed. change arg type from scm_fport to SCM port. fport.h (SCM_SETFDES): removed. (SCM_MAYBE_DRAIN_INPUT): new macro. * ioext.c (scm_dup_to_fdes): use SCM_FSTREAM. (scm_ftell): always use lseek and account for the buffer. (scm_fileno): use fport buffer. (scm_fseek): clear fport buffers. always use lseek. * posix.c (scm_pipe): use fport buffer. * unif.c: include fports.h instead of genio.h. * fports.c (scm_fdes_wait_for_input, scm_fport_fill_buffer): new procedures. (local_fgetc): use them. (local_ffwrite): use buffer. (local_fgets): use buffer. (scm_setbuf0): deleted. (scm_setvbuf): set the buffer. (scm_setfileno): deleted. (scm_evict_ports): set fdes directly. * (scm_freopen): deleted. doesn't seem useful in Guile. (scm_stdio_to_port): deleted. fports.h (struct scm_fport): add shortbuf member to avoid separate code for unbuffered ports. (SCM_FPORTP, SCM_OPFPORTP, SCM_OPINFPORTP, SCM_OPOUTFPORTP): moved from ports.h. * genio.c, genio.h: move contents into ports.c, ports.h. The division wasn't useful. * fports.c, fports.h (scm_fport_drain_input): new procedure. * ports.c (scm_drain_input): call scm_fport_drain_input. * scm_fdes_waiting_p: new procedure. * fports.c (scm_fdes_to_port): allocate read and/or write buffers. (scm_input_waiting_p): check the buffer. (local_fgetc, local_fflush, local_fputc): likewise. * fports.h (scm_fport): read/write_buf,_pos,_buf_end,,_buf_size: new members. * init.c (scm_init_standard_ports): pass fdes instead of FILE *. * * ports.c (scm_drain_input): new procedure. ports.h: prototype. * fports.c (FPORT_READ_SAFE, FPORT_WRITE_SAFE, FPORT_ALL_OKAY, pre_read, pre_write): removed. (local_fputc, local_fputs, local_ffwrite): use write, not stdio. (scm_standard_stream_to_port): change first arg from FILE * to int fdes. (local_fflush): flush fdes, not FILE *. * fports.h (SCM_NOFTELL): removed. * genio.c, ports.c: don't include filesys.h. * genio.c (scm_getc): don't use scm_internal_select if FPORT. do it in fports.c:local_fgetc. * genio.c: don't use SCM_SYSCALL when calling ptob procedures. do it where it's needed in the port smobs. * filesys.c (scm_input_waiting_p): moved to fports.c, stdio buffer support removed. take SCM arg, not FILE *. * filesys.h: prototype moved too. * fports.c (scm_fdes_to_port): new procedure. (local_fgetc): use read not fgetc. (local_fclose): use close, not fclose. (local_fgets): use read, not fgets * fports.h: prototype for scm_fdes_to_port. * fports.h (scm_fport): new struct. * fports.c (scm_open_file): use open, not fopen. #include fcntl.h * ports.h (struct scm_port_table): change stream from SCM to void *. * ports.c (scm_add_to_port_table): check for memory allocation error. (scm_prinport): remove MSDOS hair. (scm_void_port): set stream to 0 instead of SCM_BOOL_F. (scm_close_port): don't throw errors: do it in fports.c.
1999-06-09 12:19:58 +00:00
fd = SCM_FPORT_FDES (port);
if (tcsetpgrp (fd, scm_to_int (pgid)) == -1)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_TCSETPGRP */
SCM_DEFINE (scm_execl, "execl", 1, 0, 1,
(SCM filename, SCM args),
"Executes the file named by @var{filename} as a new process image.\n"
"The remaining arguments are supplied to the process; from a C program\n"
2002-03-15 10:37:40 +00:00
"they are accessible as the @code{argv} argument to @code{main}.\n"
"Conventionally the first @var{arg} is the same as @var{filename}.\n"
"All arguments must be strings.\n\n"
"If @var{arg} is missing, @var{path} is executed with a null\n"
"argument list, which may have system-dependent side-effects.\n\n"
"This procedure is currently implemented using the @code{execv} system\n"
"call, but we call it @code{execl} because of its Scheme calling interface.")
#define FUNC_NAME s_scm_execl
{
char *exec_file;
char **exec_argv;
scm_dynwind_begin (0);
exec_file = scm_to_locale_string (filename);
scm_dynwind_free (exec_file);
exec_argv = scm_i_allocate_string_pointers (args);
execv (exec_file, exec_argv);
SCM_SYSERROR;
/* not reached. */
scm_dynwind_end ();
return SCM_BOOL_F;
}
#undef FUNC_NAME
SCM_DEFINE (scm_execlp, "execlp", 1, 0, 1,
(SCM filename, SCM args),
"Similar to @code{execl}, however if\n"
"@var{filename} does not contain a slash\n"
"then the file to execute will be located by searching the\n"
"directories listed in the @code{PATH} environment variable.\n\n"
"This procedure is currently implemented using the @code{execvp} system\n"
"call, but we call it @code{execlp} because of its Scheme calling interface.")
#define FUNC_NAME s_scm_execlp
{
char *exec_file;
char **exec_argv;
scm_dynwind_begin (0);
exec_file = scm_to_locale_string (filename);
scm_dynwind_free (exec_file);
exec_argv = scm_i_allocate_string_pointers (args);
execvp (exec_file, exec_argv);
SCM_SYSERROR;
/* not reached. */
scm_dynwind_end ();
return SCM_BOOL_F;
}
#undef FUNC_NAME
/* OPTIMIZE-ME: scm_execle doesn't need malloced copies of the environment
list strings the way environ_list_to_c gives. */
SCM_DEFINE (scm_execle, "execle", 2, 0, 1,
(SCM filename, SCM env, SCM args),
"Similar to @code{execl}, but the environment of the new process is\n"
"specified by @var{env}, which must be a list of strings as returned by the\n"
"@code{environ} procedure.\n\n"
"This procedure is currently implemented using the @code{execve} system\n"
"call, but we call it @code{execle} because of its Scheme calling interface.")
#define FUNC_NAME s_scm_execle
{
char **exec_argv;
char **exec_env;
char *exec_file;
scm_dynwind_begin (0);
exec_file = scm_to_locale_string (filename);
scm_dynwind_free (exec_file);
exec_argv = scm_i_allocate_string_pointers (args);
exec_env = scm_i_allocate_string_pointers (env);
execve (exec_file, exec_argv, exec_env);
SCM_SYSERROR;
/* not reached. */
scm_dynwind_end ();
return SCM_BOOL_F;
}
#undef FUNC_NAME
2001-06-26 17:53:09 +00:00
#ifdef HAVE_FORK
SCM_DEFINE (scm_fork, "primitive-fork", 0, 0, 0,
(),
"Creates a new \"child\" process by duplicating the current \"parent\" process.\n"
"In the child the return value is 0. In the parent the return value is\n"
"the integer process ID of the child.\n\n"
"This procedure has been renamed from @code{fork} to avoid a naming conflict\n"
"with the scsh fork.")
#define FUNC_NAME s_scm_fork
{
int pid;
scm_i_finalizer_pre_fork ();
if (scm_ilength (scm_all_threads ()) != 1)
/* Other threads may be holding on to resources that Guile needs --
it is not safe to permit one thread to fork while others are
running.
In addition, POSIX clearly specifies that if a multi-threaded
program forks, the child must only call functions that are
async-signal-safe. We can't guarantee that in general. The best
we can do is to allow forking only very early, before any call to
sigaction spawns the signal-handling thread. */
scm_display
(scm_from_latin1_string
("warning: call to primitive-fork while multiple threads are running;\n"
" further behavior unspecified. See \"Processes\" in the\n"
" manual, for more information.\n"),
scm_current_warning_port ());
pid = fork ();
if (pid == -1)
SCM_SYSERROR;
return scm_from_int (pid);
}
#undef FUNC_NAME
#endif /* HAVE_FORK */
#ifdef HAVE_FORK
/* 'renumber_file_descriptor' is a helper function for 'start_child'
below, and is specialized for that particular environment where it
doesn't make sense to report errors via exceptions. It uses dup(2)
to duplicate the file descriptor FD, closes the original FD, and
returns the new descriptor. If dup(2) fails, print an error message
to ERR and abort. */
static int
renumber_file_descriptor (int fd, int err)
{
int new_fd;
do
new_fd = dup (fd);
while (new_fd == -1 && errno == EINTR);
if (new_fd == -1)
{
/* At this point we are in the child process before exec. We
cannot safely raise an exception in this environment. */
char *msg = strerror (errno);
fprintf (fdopen (err, "a"), "start_child: dup failed: %s\n", msg);
_exit (127); /* Use exit status 127, as with other exec errors. */
}
close (fd);
return new_fd;
}
#endif /* HAVE_FORK */
#ifdef HAVE_FORK
#define HAVE_START_CHILD 1
/* Since Guile uses threads, we have to be very careful to avoid calling
functions that are not async-signal-safe in the child. That's why
this function is implemented in C. */
static pid_t
start_child (const char *exec_file, char **exec_argv,
int reading, int c2p[2], int writing, int p2c[2],
int in, int out, int err)
{
int pid;
int max_fd = 1024;
#if defined (HAVE_GETRLIMIT) && defined (RLIMIT_NOFILE)
{
struct rlimit lim = { 0, 0 };
if (getrlimit (RLIMIT_NOFILE, &lim) == 0)
max_fd = lim.rlim_cur;
}
#endif
pid = fork ();
if (pid != 0)
/* The parent, with either and error (pid == -1), or the PID of the
child. Return directly in either case. */
return pid;
/* The child. */
if (reading)
close (c2p[0]);
if (writing)
close (p2c[1]);
/* Close all file descriptors in ports inherited from the parent
except for in, out, and err. Heavy-handed, but robust. */
while (max_fd--)
if (max_fd != in && max_fd != out && max_fd != err)
close (max_fd);
/* Ignore errors on these open() calls. */
if (in == -1)
in = open ("/dev/null", O_RDONLY);
if (out == -1)
out = open ("/dev/null", O_WRONLY);
if (err == -1)
err = open ("/dev/null", O_WRONLY);
if (in > 0)
{
if (out == 0)
out = renumber_file_descriptor (out, err);
if (err == 0)
err = renumber_file_descriptor (err, err);
do dup2 (in, 0); while (errno == EINTR);
close (in);
}
if (out > 1)
{
if (err == 1)
err = renumber_file_descriptor (err, err);
do dup2 (out, 1); while (errno == EINTR);
close (out);
}
if (err > 2)
{
do dup2 (err, 2); while (errno == EINTR);
close (err);
}
execvp (exec_file, exec_argv);
/* The exec failed! There is nothing sensible to do. */
{
char *msg = strerror (errno);
fprintf (fdopen (2, "a"), "In execvp of %s: %s\n",
exec_file, msg);
}
/* Use exit status 127, like shells in this case, as per POSIX
<http://pubs.opengroup.org/onlinepubs/007904875/utilities/xcu_chap02.html#tag_02_09_01_01>. */
_exit (127);
/* Not reached. */
return -1;
}
#endif
#ifdef HAVE_START_CHILD
static SCM
scm_open_process (SCM mode, SCM prog, SCM args)
#define FUNC_NAME "open-process"
{
long mode_bits;
int reading, writing;
int c2p[2]; /* Child to parent. */
int p2c[2]; /* Parent to child. */
int in = -1, out = -1, err = -1;
int pid;
char *exec_file;
char **exec_argv;
SCM read_port = SCM_BOOL_F, write_port = SCM_BOOL_F;
exec_file = scm_to_locale_string (prog);
exec_argv = scm_i_allocate_string_pointers (scm_cons (prog, args));
mode_bits = scm_i_mode_bits (mode);
reading = mode_bits & SCM_RDNG;
writing = mode_bits & SCM_WRTNG;
if (reading)
{
if (pipe (c2p))
{
int errno_save = errno;
free (exec_file);
errno = errno_save;
SCM_SYSERROR;
}
out = c2p[1];
}
if (writing)
{
if (pipe (p2c))
{
int errno_save = errno;
free (exec_file);
if (reading)
{
close (c2p[0]);
close (c2p[1]);
}
errno = errno_save;
SCM_SYSERROR;
}
in = p2c[0];
}
{
SCM port;
if (SCM_OPOUTFPORTP ((port = scm_current_error_port ())))
err = SCM_FPORT_FDES (port);
if (out == -1 && SCM_OPOUTFPORTP ((port = scm_current_output_port ())))
out = SCM_FPORT_FDES (port);
if (in == -1 && SCM_OPINFPORTP ((port = scm_current_input_port ())))
in = SCM_FPORT_FDES (port);
}
pid = start_child (exec_file, exec_argv, reading, c2p, writing, p2c,
in, out, err);
if (pid == -1)
{
int errno_save = errno;
free (exec_file);
if (reading)
{
close (c2p[0]);
close (c2p[1]);
}
if (writing)
{
close (p2c[0]);
close (p2c[1]);
}
errno = errno_save;
SCM_SYSERROR;
}
/* There is no sense in catching errors on close(). */
if (reading)
{
close (c2p[1]);
read_port = scm_i_fdes_to_port (c2p[0], scm_mode_bits ("r0"),
sym_read_pipe,
SCM_FPORT_OPTION_NOT_SEEKABLE);
}
if (writing)
{
close (p2c[0]);
write_port = scm_i_fdes_to_port (p2c[1], scm_mode_bits ("w0"),
sym_write_pipe,
SCM_FPORT_OPTION_NOT_SEEKABLE);
}
Give multiple-values objects a tc7 * libguile/scm.h (scm_tc7_values): New tc7. Never seen by Scheme, so we don't need to update it anywhere else. * libguile/values.h (scm_is_values): New public static inline function. (scm_i_nvalues, scm_i_value_ref): New private static inline functions. (SCM_VALUESP): Use scm_is_value. (scm_values_2, scm_values_3): New functions. (scm_values_vtable): Remove; values objects are not structs any more. * libguile/values.c (scm_i_extract_values_2): Adapt to new values representation. (print_values): Remove now-unused function. (scm_c_nvalues): Use scm_i_nvalues. (scm_c_value_ref): Use scm_i_value_ref. (scm_values, scm_c_values): Make the new-style objects, which store their values inline. (scm_values_2, scm_values_3): New helpers, to avoid consing little useless lists. * libguile/vm-engine.c (halt, subr-call) * libguile/eval.c (eval): Adapt to new values representation. * libguile/i18n.c (scm_locale_string_to_integer) (scm_locale_string_to_integer) * libguile/numbers.c (scm_i_floor_divide, scm_i_ceiling_divide) (scm_i_truncate_divide, scm_i_centered_divide, scm_i_round_divide) (scm_i_exact_integer_sqrt) * libguile/r6rs-ports.c (make_bytevector_output_port) * libguile/srfi-1.c (scm_srfi1_partition, scm_srfi1_partition_x) * libguile/srfi-14.c (scm_char_set_diff_plus_intersection) (scm_char_set_diff_plus_intersection_x) * libguile/posix.c (scm_getrlimit, scm_open_process): Adapt to use scm_values_2 or scm_values_3. * libguile/print.c (iprin1): Add printer for values objects.
2018-06-25 15:49:34 +02:00
return scm_values_3 (read_port, write_port, scm_from_int (pid));
}
#undef FUNC_NAME
static void
restore_sigaction (SCM pair)
{
SCM sig, handler, flags;
sig = scm_car (pair);
handler = scm_cadr (pair);
flags = scm_cddr (pair);
scm_sigaction (sig, handler, flags);
}
static void
scm_dynwind_sigaction (int sig, SCM handler, SCM flags)
{
SCM old, scm_sig;
scm_sig = scm_from_int (sig);
old = scm_sigaction (scm_sig, handler, flags);
scm_dynwind_unwind_handler_with_scm (restore_sigaction,
scm_cons (scm_sig, old),
SCM_F_WIND_EXPLICITLY);
}
SCM_DEFINE (scm_system_star, "system*", 0, 0, 1,
(SCM args),
"Execute the command indicated by @var{args}. The first element must\n"
"be a string indicating the command to be executed, and the remaining\n"
"items must be strings representing each of the arguments to that\n"
"command.\n"
"\n"
"This function returns the exit status of the command as provided by\n"
"@code{waitpid}. This value can be handled with @code{status:exit-val}\n"
"and the related functions.\n"
"\n"
"@code{system*} is similar to @code{system}, but accepts only one\n"
"string per-argument, and performs no shell interpretation. The\n"
"command is executed using fork and execlp. Accordingly this function\n"
"may be safer than @code{system} in situations where shell\n"
"interpretation is not required.\n"
"\n"
"Example: (system* \"echo\" \"foo\" \"bar\")")
#define FUNC_NAME s_scm_system_star
{
SCM prog, res;
int pid, status, wait_result;
if (scm_is_null (args))
SCM_WRONG_NUM_ARGS ();
prog = scm_car (args);
args = scm_cdr (args);
scm_dynwind_begin (0);
/* Make sure the child can't kill us (as per normal system call). */
scm_dynwind_sigaction (SIGINT,
Replace uses of scm_t_int8, scm_t_uintmax, etc with stdint types * libguile/bitvectors.c: * libguile/bitvectors.h: * libguile/bytevectors.c: * libguile/bytevectors.h: * libguile/chars.c: * libguile/continuations.c: * libguile/control.c: * libguile/conv-integer.i.c: * libguile/conv-uinteger.i.c: * libguile/dynstack.c: * libguile/dynstack.h: * libguile/foreign.c: * libguile/frames.c: * libguile/frames.h: * libguile/gc-inline.h: * libguile/gc.h: * libguile/gsubr.c: * libguile/gsubr.h: * libguile/hash.c: * libguile/i18n.c: * libguile/instructions.c: * libguile/intrinsics.c: * libguile/intrinsics.h: * libguile/loader.c: * libguile/loader.h: * libguile/numbers.c: * libguile/numbers.h: * libguile/pairs.c: * libguile/ports-internal.h: * libguile/ports.c: * libguile/ports.h: * libguile/posix.c: * libguile/print.c: * libguile/print.h: * libguile/programs.c: * libguile/programs.h: * libguile/r6rs-ports.c: * libguile/random.c: * libguile/random.h: * libguile/scm.h: * libguile/socket.c: * libguile/srfi-4.c: * libguile/srfi-4.h: * libguile/stacks.c: * libguile/stime.c: * libguile/strings.c: * libguile/struct.c: * libguile/struct.h: * libguile/symbols.c: * libguile/threads.c: * libguile/threads.h: * libguile/uniform.c: * libguile/vm-engine.c: * libguile/vm.c: * libguile/vm.h: * libguile/vports.c: * test-suite/standalone/test-conversion.c: * test-suite/standalone/test-ffi-lib.c: * test-suite/standalone/test-scm-take-u8vector.c: * test-suite/standalone/test-srfi-4.c: Replace e.g. scm_t_uint8 with uint8_t.
2018-06-21 08:39:03 +02:00
scm_from_uintptr_t ((uintptr_t) SIG_IGN),
SCM_UNDEFINED);
#ifdef SIGQUIT
scm_dynwind_sigaction (SIGQUIT,
Replace uses of scm_t_int8, scm_t_uintmax, etc with stdint types * libguile/bitvectors.c: * libguile/bitvectors.h: * libguile/bytevectors.c: * libguile/bytevectors.h: * libguile/chars.c: * libguile/continuations.c: * libguile/control.c: * libguile/conv-integer.i.c: * libguile/conv-uinteger.i.c: * libguile/dynstack.c: * libguile/dynstack.h: * libguile/foreign.c: * libguile/frames.c: * libguile/frames.h: * libguile/gc-inline.h: * libguile/gc.h: * libguile/gsubr.c: * libguile/gsubr.h: * libguile/hash.c: * libguile/i18n.c: * libguile/instructions.c: * libguile/intrinsics.c: * libguile/intrinsics.h: * libguile/loader.c: * libguile/loader.h: * libguile/numbers.c: * libguile/numbers.h: * libguile/pairs.c: * libguile/ports-internal.h: * libguile/ports.c: * libguile/ports.h: * libguile/posix.c: * libguile/print.c: * libguile/print.h: * libguile/programs.c: * libguile/programs.h: * libguile/r6rs-ports.c: * libguile/random.c: * libguile/random.h: * libguile/scm.h: * libguile/socket.c: * libguile/srfi-4.c: * libguile/srfi-4.h: * libguile/stacks.c: * libguile/stime.c: * libguile/strings.c: * libguile/struct.c: * libguile/struct.h: * libguile/symbols.c: * libguile/threads.c: * libguile/threads.h: * libguile/uniform.c: * libguile/vm-engine.c: * libguile/vm.c: * libguile/vm.h: * libguile/vports.c: * test-suite/standalone/test-conversion.c: * test-suite/standalone/test-ffi-lib.c: * test-suite/standalone/test-scm-take-u8vector.c: * test-suite/standalone/test-srfi-4.c: Replace e.g. scm_t_uint8 with uint8_t.
2018-06-21 08:39:03 +02:00
scm_from_uintptr_t ((uintptr_t) SIG_IGN),
SCM_UNDEFINED);
#endif
res = scm_open_process (scm_nullstr, prog, args);
pid = scm_to_int (scm_c_value_ref (res, 2));
SCM_SYSCALL (wait_result = waitpid (pid, &status, 0));
if (wait_result == -1)
SCM_SYSERROR;
scm_dynwind_end ();
return scm_from_int (status);
}
#undef FUNC_NAME
#endif /* HAVE_START_CHILD */
#ifdef HAVE_UNAME
SCM_DEFINE (scm_uname, "uname", 0, 0, 0,
(),
"Return an object with some information about the computer\n"
"system the program is running on.")
#define FUNC_NAME s_scm_uname
{
struct utsname buf;
SCM result = scm_c_make_vector (5, SCM_UNSPECIFIED);
if (uname (&buf) < 0)
SCM_SYSERROR;
SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_locale_string (buf.sysname));
SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (buf.nodename));
SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_locale_string (buf.release));
SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_locale_string (buf.version));
SCM_SIMPLE_VECTOR_SET(result, 4, scm_from_locale_string (buf.machine));
/*
a linux special?
SCM_SIMPLE_VECTOR_SET(result, 5, scm_from_locale_string (buf.domainname));
*/
return result;
}
#undef FUNC_NAME
#endif /* HAVE_UNAME */
SCM_DEFINE (scm_environ, "environ", 0, 1, 0,
(SCM env),
"If @var{env} is omitted, return the current environment (in the\n"
"Unix sense) as a list of strings. Otherwise set the current\n"
"environment, which is also the default environment for child\n"
"processes, to the supplied list of strings. Each member of\n"
"@var{env} should be of the form @code{NAME=VALUE} and values of\n"
"@code{NAME} should not be duplicated. If @var{env} is supplied\n"
"then the return value is unspecified.")
#define FUNC_NAME s_scm_environ
{
if (SCM_UNBNDP (env))
return scm_makfromstrs (-1, environ);
else
{
environ = scm_i_allocate_string_pointers (env);
return SCM_UNSPECIFIED;
}
}
#undef FUNC_NAME
#ifdef L_tmpnam
SCM_DEFINE (scm_tmpnam, "tmpnam", 0, 0, 0,
(),
"Return a name in the file system that does not match any\n"
"existing file. However there is no guarantee that another\n"
"process will not create the file after @code{tmpnam} is called.\n"
"Care should be taken if opening the file, e.g., use the\n"
"@code{O_EXCL} open flag or use @code{mkstemp!} instead.")
#define FUNC_NAME s_scm_tmpnam
{
char name[L_tmpnam];
char *rv;
SCM_SYSCALL (rv = tmpnam (name));
if (rv == NULL)
/* not SCM_SYSERROR since errno probably not set. */
SCM_MISC_ERROR ("tmpnam failed", SCM_EOL);
return scm_from_locale_string (name);
}
#undef FUNC_NAME
#endif
SCM_DEFINE (scm_tmpfile, "tmpfile", 0, 0, 0,
(void),
"Return an input/output port to a unique temporary file\n"
"named using the path prefix @code{P_tmpdir} defined in\n"
"@file{stdio.h}.\n"
"The file is automatically deleted when the port is closed\n"
"or the program terminates.")
#define FUNC_NAME s_scm_tmpfile
{
FILE *rv;
int fd;
if (! (rv = tmpfile ()))
SCM_SYSERROR;
#ifndef __MINGW32__
fd = dup (fileno (rv));
fclose (rv);
#else
fd = fileno (rv);
/* FIXME: leaking the file, it will never be closed! */
#endif
return scm_fdes_to_port (fd, "w+", SCM_BOOL_F);
}
#undef FUNC_NAME
SCM_DEFINE (scm_utime, "utime", 1, 5, 0,
(SCM pathname, SCM actime, SCM modtime, SCM actimens, SCM modtimens,
SCM flags),
"@code{utime} sets the access and modification times for the\n"
"file named by @var{pathname}. If @var{actime} or @var{modtime} is\n"
"not supplied, then the current time is used. @var{actime} and\n"
"@var{modtime} must be integer time values as returned by the\n"
"@code{current-time} procedure.\n\n"
"The optional @var{actimens} and @var{modtimens} are nanoseconds\n"
"to add @var{actime} and @var{modtime}. Nanosecond precision is\n"
"only supported on some combinations of file systems and operating\n"
"systems.\n"
"@lisp\n"
"(utime \"foo\" (- (current-time) 3600))\n"
"@end lisp\n"
"will set the access time to one hour in the past and the\n"
"modification time to the current time.\n\n"
"Last, @var{flags} may be either @code{0} or the\n"
"@code{AT_SYMLINK_NOFOLLOW} constant, to set the time of\n"
"@var{pathname} even if it is a symbolic link.\n")
#define FUNC_NAME s_scm_utime
{
int rv;
time_t atim_sec, mtim_sec;
long atim_nsec, mtim_nsec;
int f;
if (SCM_UNBNDP (actime))
{
#ifdef HAVE_UTIMENSAT
atim_sec = 0;
atim_nsec = UTIME_NOW;
#else
SCM_SYSCALL (time (&atim_sec));
atim_nsec = 0;
#endif
}
else
{
atim_sec = SCM_NUM2ULONG (2, actime);
if (SCM_UNBNDP (actimens))
atim_nsec = 0;
else
atim_nsec = SCM_NUM2LONG (4, actimens);
}
if (SCM_UNBNDP (modtime))
{
#ifdef HAVE_UTIMENSAT
mtim_sec = 0;
mtim_nsec = UTIME_NOW;
#else
SCM_SYSCALL (time (&mtim_sec));
mtim_nsec = 0;
#endif
}
else
{
mtim_sec = SCM_NUM2ULONG (3, modtime);
if (SCM_UNBNDP (modtimens))
mtim_nsec = 0;
else
mtim_nsec = SCM_NUM2LONG (5, modtimens);
}
if (SCM_UNBNDP (flags))
f = 0;
else
f = SCM_NUM2INT (6, flags);
#ifdef HAVE_UTIMENSAT
{
struct timespec times[2];
times[0].tv_sec = atim_sec;
times[0].tv_nsec = atim_nsec;
times[1].tv_sec = mtim_sec;
times[1].tv_nsec = mtim_nsec;
STRING_SYSCALL (pathname, c_pathname,
rv = utimensat (AT_FDCWD, c_pathname, times, f));
}
#else
{
struct utimbuf utm;
utm.actime = atim_sec;
utm.modtime = mtim_sec;
/* Silence warnings. */
(void) atim_nsec;
(void) mtim_nsec;
if (f != 0)
scm_out_of_range(FUNC_NAME, flags);
STRING_SYSCALL (pathname, c_pathname,
rv = utime (c_pathname, &utm));
}
#endif
if (rv != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
SCM_DEFINE (scm_getpid, "getpid", 0, 0, 0,
(),
"Return an integer representing the current process ID.")
#define FUNC_NAME s_scm_getpid
{
return scm_from_ulong (getpid ());
}
#undef FUNC_NAME
SCM_DEFINE (scm_putenv, "putenv", 1, 0, 0,
(SCM str),
"Modifies the environment of the current process, which is also\n"
"the default environment inherited by child processes. If\n"
"@var{str} is of the form @code{NAME=VALUE} then it will be\n"
"written directly into the environment, replacing any existing\n"
"environment string with name matching @code{NAME}. If\n"
"@var{str} does not contain an equal sign, then any existing\n"
"string with name matching @var{str} will be removed.\n"
"\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_putenv
{
int rv;
char *c_str = scm_to_locale_string (str);
/* Leave C_STR in the environment. */
/* Gnulib's `putenv' module honors the semantics described above. */
rv = putenv (c_str);
if (rv < 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
2006-11-18 18:14:55 +00:00
/* This mutex is used to serialize invocations of `setlocale ()' on non-GNU
2007-01-31 20:58:20 +00:00
systems (i.e., systems where a reentrant locale API is not available). It
is also acquired before calls to `nl_langinfo ()'. See `i18n.c' for
details. */
scm_i_pthread_mutex_t scm_i_locale_mutex = SCM_I_PTHREAD_MUTEX_INITIALIZER;
2006-11-18 18:14:55 +00:00
#ifdef HAVE_SETLOCALE
2006-11-18 18:14:55 +00:00
SCM_DEFINE (scm_setlocale, "setlocale", 1, 1, 0,
(SCM category, SCM locale),
"If @var{locale} is omitted, return the current value of the\n"
"specified locale category as a system-dependent string.\n"
"@var{category} should be specified using the values\n"
"@code{LC_COLLATE}, @code{LC_ALL} etc.\n"
"\n"
"Otherwise the specified locale category is set to the string\n"
"@var{locale} and the new value is returned as a\n"
"system-dependent string. If @var{locale} is an empty string,\n"
Add full Unicode capability to ports and the default reader Ports are given two additional properties: a character encoding and a conversion failure strategy. These properties have getters and setters. The new properties are used to convert any locale text to/from the internal representation of strings. If unspecified, ports use a default value. The default value of these properties is held in a fluid. The default character encoding can be modified by calling setlocale. ISO-8859-1 is treated specially. Since it is a native encoding of strings, it can be processed more quickly. Source code is assumed to be ISO-8859-1 unless otherwise specified. The encoding of a source code file can be given as 'coding: XXXXX' in a magic comment at the top of a file. The C functions that deal with encoding often use a null pointer as shorthand for the native Latin-1 encoding, for efficiency's sake. * test-suite/tests/encoding-iso88591.test: new tests * test-suite/tests/encoding-iso88597.test: new tests * test-suite/tests/encoding-utf8.test: new tests * test-suite/tests/encoding-escapes.test: new tests * test-suite/tests/numbers.test: declare 'binary' encoding * test-suite/tests/ports.test: declare 'binary' encoding * test-suite/tests/r6rs-ports.test: declare 'binary' encoding * module/system/base/compile.scm (compile-file): use source-code file's self-declared encoding when compiling files * libguile/strports.c: store string ports in locale encoding (scm_strport_to_locale_u8vector, scm_call_with_output_locale_u8vector) (scm_open_input_locale_u8vector, scm_get_output_locale_u8vector): new functions * libguile/strings.h: new declaration for scm_i_string_contains_char * libguile/strings.c (scm_i_string_contains_char): new function (scm_from_stringn, scm_to_stringn): use NULL for Latin-1 (scm_from_locale_stringn, scm_to_locale_stringn): respect character encoding of input and output ports * libguile/read.h: declaration for scm_scan_for_encoding * libguile/read.c: (read_token): now takes scheme string instead of C string/length (read_complete_token): new function (scm_read_sexp, scm_read_number, scm_read_mixed_case_symbol) (scm_read_number_and_radix, scm_read_quote, scm_read_semicolon_comment) (scm_read_srfi4_vector, scm_read_bytevector, scm_read_guile_bit_vector) (scm_read_scsh_block_comment, scm_read_commented_expression) (scm_read_extended_symbol, scm_read_sharp_extension, scm_read_shart) (scm_read_expression): use scm_t_wchar for char type, use read_complete_token (scm_scan_for_encoding): new function to find a file's character encoding (scm_file_encoding): new function to find a port's character encoding * libguile/rdelim.c: don't unpack strings * libguile/print.h: declaration for modified function scm_i_charprint * libguile/print.c: use locale when printing characters and strings (scm_i_charprint): input parameter is now scm_t_wchar (scm_simple_format): don't unpack strings * libguile/posix.h: new declaration for scm_setbinary. * libguile/posix.c (scm_setlocale): set default and stdio port encodings based on the locale's character encoding (scm_setbinary): new function * libguile/ports.h (scm_t_port): add encoding and failed conversion handler to port type. Declarations for new or modified functions scm_getc, scm_unget_byte, scm_ungetc, scm_i_get_port_encoding, scm_i_set_port_encoding_x, scm_port_encoding, scm_set_port_encoding_x, scm_i_get_conversion_strategy, scm_i_set_conversion_strategy_x, scm_port_conversion_strategy, scm_set_port_conversion_strategy_x. * libguile/ports.c: assign the current ports to zero on startup so we can see if they've been set. (scm_current_input_port, scm_current_output_port, scm_current_error_port): return #f if the port is not yet initialized (scm_new_port_table_entry): set up a new port's encoding and illegal sequence handler based on the thread's current defaults (scm_i_remove_port): free port encoding name when port is removed (scm_i_mode_bits_n): now takes a scheme string instead of a c string and length. All callers changed. (SCM_MBCHAR_BUF_SIZE): new const (scm_getc): new function, since the scm_getc in inline.h is now scm_get_byte_or_eof. This pulls one codepoint from a port. (scm_lfwrite_substr, scm_lfwrite_str): now uses port's encoding (scm_unget_byte): new function, incorportaing the low-level functionality of scm_ungetc (scm_ungetc): uses scm_unget_byte * libguile/numbers.h (scm_t_wchar): compilation order problem with scm_t_wchar being use in functions in multiple headers. Forward declare scm_t_wchar. * libguile/load.c (scm_primitive_load): scan for file encoding at top of file and use it to set the load port's encoding * libguile/inline.h (scm_get_byte_or_eof): new function incorporating most of the functionality of scm_getc. * libguile/fports.c (fport_fill_input): now returns scm_t_wchar * libguile/chars.h (scm_t_wchar): avoid compilation order problem with declaration of scm_t_wchar
2009-08-25 07:54:37 -07:00
"the locale will be set using environment variables.\n"
"\n"
"When the locale is changed, the character encoding of the new\n"
"locale (UTF-8, ISO-8859-1, etc.) is used for the current\n"
"input, output, and error ports\n")
#define FUNC_NAME s_scm_setlocale
{
2007-01-31 20:58:20 +00:00
int c_category;
char *clocale;
char *rv;
Add full Unicode capability to ports and the default reader Ports are given two additional properties: a character encoding and a conversion failure strategy. These properties have getters and setters. The new properties are used to convert any locale text to/from the internal representation of strings. If unspecified, ports use a default value. The default value of these properties is held in a fluid. The default character encoding can be modified by calling setlocale. ISO-8859-1 is treated specially. Since it is a native encoding of strings, it can be processed more quickly. Source code is assumed to be ISO-8859-1 unless otherwise specified. The encoding of a source code file can be given as 'coding: XXXXX' in a magic comment at the top of a file. The C functions that deal with encoding often use a null pointer as shorthand for the native Latin-1 encoding, for efficiency's sake. * test-suite/tests/encoding-iso88591.test: new tests * test-suite/tests/encoding-iso88597.test: new tests * test-suite/tests/encoding-utf8.test: new tests * test-suite/tests/encoding-escapes.test: new tests * test-suite/tests/numbers.test: declare 'binary' encoding * test-suite/tests/ports.test: declare 'binary' encoding * test-suite/tests/r6rs-ports.test: declare 'binary' encoding * module/system/base/compile.scm (compile-file): use source-code file's self-declared encoding when compiling files * libguile/strports.c: store string ports in locale encoding (scm_strport_to_locale_u8vector, scm_call_with_output_locale_u8vector) (scm_open_input_locale_u8vector, scm_get_output_locale_u8vector): new functions * libguile/strings.h: new declaration for scm_i_string_contains_char * libguile/strings.c (scm_i_string_contains_char): new function (scm_from_stringn, scm_to_stringn): use NULL for Latin-1 (scm_from_locale_stringn, scm_to_locale_stringn): respect character encoding of input and output ports * libguile/read.h: declaration for scm_scan_for_encoding * libguile/read.c: (read_token): now takes scheme string instead of C string/length (read_complete_token): new function (scm_read_sexp, scm_read_number, scm_read_mixed_case_symbol) (scm_read_number_and_radix, scm_read_quote, scm_read_semicolon_comment) (scm_read_srfi4_vector, scm_read_bytevector, scm_read_guile_bit_vector) (scm_read_scsh_block_comment, scm_read_commented_expression) (scm_read_extended_symbol, scm_read_sharp_extension, scm_read_shart) (scm_read_expression): use scm_t_wchar for char type, use read_complete_token (scm_scan_for_encoding): new function to find a file's character encoding (scm_file_encoding): new function to find a port's character encoding * libguile/rdelim.c: don't unpack strings * libguile/print.h: declaration for modified function scm_i_charprint * libguile/print.c: use locale when printing characters and strings (scm_i_charprint): input parameter is now scm_t_wchar (scm_simple_format): don't unpack strings * libguile/posix.h: new declaration for scm_setbinary. * libguile/posix.c (scm_setlocale): set default and stdio port encodings based on the locale's character encoding (scm_setbinary): new function * libguile/ports.h (scm_t_port): add encoding and failed conversion handler to port type. Declarations for new or modified functions scm_getc, scm_unget_byte, scm_ungetc, scm_i_get_port_encoding, scm_i_set_port_encoding_x, scm_port_encoding, scm_set_port_encoding_x, scm_i_get_conversion_strategy, scm_i_set_conversion_strategy_x, scm_port_conversion_strategy, scm_set_port_conversion_strategy_x. * libguile/ports.c: assign the current ports to zero on startup so we can see if they've been set. (scm_current_input_port, scm_current_output_port, scm_current_error_port): return #f if the port is not yet initialized (scm_new_port_table_entry): set up a new port's encoding and illegal sequence handler based on the thread's current defaults (scm_i_remove_port): free port encoding name when port is removed (scm_i_mode_bits_n): now takes a scheme string instead of a c string and length. All callers changed. (SCM_MBCHAR_BUF_SIZE): new const (scm_getc): new function, since the scm_getc in inline.h is now scm_get_byte_or_eof. This pulls one codepoint from a port. (scm_lfwrite_substr, scm_lfwrite_str): now uses port's encoding (scm_unget_byte): new function, incorportaing the low-level functionality of scm_ungetc (scm_ungetc): uses scm_unget_byte * libguile/numbers.h (scm_t_wchar): compilation order problem with scm_t_wchar being use in functions in multiple headers. Forward declare scm_t_wchar. * libguile/load.c (scm_primitive_load): scan for file encoding at top of file and use it to set the load port's encoding * libguile/inline.h (scm_get_byte_or_eof): new function incorporating most of the functionality of scm_getc. * libguile/fports.c (fport_fill_input): now returns scm_t_wchar * libguile/chars.h (scm_t_wchar): avoid compilation order problem with declaration of scm_t_wchar
2009-08-25 07:54:37 -07:00
const char *enc;
scm_dynwind_begin (0);
if (SCM_UNBNDP (locale))
{
clocale = NULL;
}
else
{
clocale = scm_to_locale_string (locale);
scm_dynwind_free (clocale);
}
2007-01-31 20:58:20 +00:00
c_category = scm_i_to_lc_category (category, 1);
2006-11-18 18:14:55 +00:00
scm_i_pthread_mutex_lock (&scm_i_locale_mutex);
2007-01-31 20:58:20 +00:00
rv = setlocale (c_category, clocale);
2006-11-18 18:14:55 +00:00
scm_i_pthread_mutex_unlock (&scm_i_locale_mutex);
if (rv == NULL)
{
/* POSIX and C99 don't say anything about setlocale setting errno, so
force a sensible value here. glibc leaves ENOENT, which would be
fine, but it's not a documented feature. */
errno = EINVAL;
SCM_SYSERROR;
}
Add full Unicode capability to ports and the default reader Ports are given two additional properties: a character encoding and a conversion failure strategy. These properties have getters and setters. The new properties are used to convert any locale text to/from the internal representation of strings. If unspecified, ports use a default value. The default value of these properties is held in a fluid. The default character encoding can be modified by calling setlocale. ISO-8859-1 is treated specially. Since it is a native encoding of strings, it can be processed more quickly. Source code is assumed to be ISO-8859-1 unless otherwise specified. The encoding of a source code file can be given as 'coding: XXXXX' in a magic comment at the top of a file. The C functions that deal with encoding often use a null pointer as shorthand for the native Latin-1 encoding, for efficiency's sake. * test-suite/tests/encoding-iso88591.test: new tests * test-suite/tests/encoding-iso88597.test: new tests * test-suite/tests/encoding-utf8.test: new tests * test-suite/tests/encoding-escapes.test: new tests * test-suite/tests/numbers.test: declare 'binary' encoding * test-suite/tests/ports.test: declare 'binary' encoding * test-suite/tests/r6rs-ports.test: declare 'binary' encoding * module/system/base/compile.scm (compile-file): use source-code file's self-declared encoding when compiling files * libguile/strports.c: store string ports in locale encoding (scm_strport_to_locale_u8vector, scm_call_with_output_locale_u8vector) (scm_open_input_locale_u8vector, scm_get_output_locale_u8vector): new functions * libguile/strings.h: new declaration for scm_i_string_contains_char * libguile/strings.c (scm_i_string_contains_char): new function (scm_from_stringn, scm_to_stringn): use NULL for Latin-1 (scm_from_locale_stringn, scm_to_locale_stringn): respect character encoding of input and output ports * libguile/read.h: declaration for scm_scan_for_encoding * libguile/read.c: (read_token): now takes scheme string instead of C string/length (read_complete_token): new function (scm_read_sexp, scm_read_number, scm_read_mixed_case_symbol) (scm_read_number_and_radix, scm_read_quote, scm_read_semicolon_comment) (scm_read_srfi4_vector, scm_read_bytevector, scm_read_guile_bit_vector) (scm_read_scsh_block_comment, scm_read_commented_expression) (scm_read_extended_symbol, scm_read_sharp_extension, scm_read_shart) (scm_read_expression): use scm_t_wchar for char type, use read_complete_token (scm_scan_for_encoding): new function to find a file's character encoding (scm_file_encoding): new function to find a port's character encoding * libguile/rdelim.c: don't unpack strings * libguile/print.h: declaration for modified function scm_i_charprint * libguile/print.c: use locale when printing characters and strings (scm_i_charprint): input parameter is now scm_t_wchar (scm_simple_format): don't unpack strings * libguile/posix.h: new declaration for scm_setbinary. * libguile/posix.c (scm_setlocale): set default and stdio port encodings based on the locale's character encoding (scm_setbinary): new function * libguile/ports.h (scm_t_port): add encoding and failed conversion handler to port type. Declarations for new or modified functions scm_getc, scm_unget_byte, scm_ungetc, scm_i_get_port_encoding, scm_i_set_port_encoding_x, scm_port_encoding, scm_set_port_encoding_x, scm_i_get_conversion_strategy, scm_i_set_conversion_strategy_x, scm_port_conversion_strategy, scm_set_port_conversion_strategy_x. * libguile/ports.c: assign the current ports to zero on startup so we can see if they've been set. (scm_current_input_port, scm_current_output_port, scm_current_error_port): return #f if the port is not yet initialized (scm_new_port_table_entry): set up a new port's encoding and illegal sequence handler based on the thread's current defaults (scm_i_remove_port): free port encoding name when port is removed (scm_i_mode_bits_n): now takes a scheme string instead of a c string and length. All callers changed. (SCM_MBCHAR_BUF_SIZE): new const (scm_getc): new function, since the scm_getc in inline.h is now scm_get_byte_or_eof. This pulls one codepoint from a port. (scm_lfwrite_substr, scm_lfwrite_str): now uses port's encoding (scm_unget_byte): new function, incorportaing the low-level functionality of scm_ungetc (scm_ungetc): uses scm_unget_byte * libguile/numbers.h (scm_t_wchar): compilation order problem with scm_t_wchar being use in functions in multiple headers. Forward declare scm_t_wchar. * libguile/load.c (scm_primitive_load): scan for file encoding at top of file and use it to set the load port's encoding * libguile/inline.h (scm_get_byte_or_eof): new function incorporating most of the functionality of scm_getc. * libguile/fports.c (fport_fill_input): now returns scm_t_wchar * libguile/chars.h (scm_t_wchar): avoid compilation order problem with declaration of scm_t_wchar
2009-08-25 07:54:37 -07:00
enc = locale_charset ();
Add full Unicode capability to ports and the default reader Ports are given two additional properties: a character encoding and a conversion failure strategy. These properties have getters and setters. The new properties are used to convert any locale text to/from the internal representation of strings. If unspecified, ports use a default value. The default value of these properties is held in a fluid. The default character encoding can be modified by calling setlocale. ISO-8859-1 is treated specially. Since it is a native encoding of strings, it can be processed more quickly. Source code is assumed to be ISO-8859-1 unless otherwise specified. The encoding of a source code file can be given as 'coding: XXXXX' in a magic comment at the top of a file. The C functions that deal with encoding often use a null pointer as shorthand for the native Latin-1 encoding, for efficiency's sake. * test-suite/tests/encoding-iso88591.test: new tests * test-suite/tests/encoding-iso88597.test: new tests * test-suite/tests/encoding-utf8.test: new tests * test-suite/tests/encoding-escapes.test: new tests * test-suite/tests/numbers.test: declare 'binary' encoding * test-suite/tests/ports.test: declare 'binary' encoding * test-suite/tests/r6rs-ports.test: declare 'binary' encoding * module/system/base/compile.scm (compile-file): use source-code file's self-declared encoding when compiling files * libguile/strports.c: store string ports in locale encoding (scm_strport_to_locale_u8vector, scm_call_with_output_locale_u8vector) (scm_open_input_locale_u8vector, scm_get_output_locale_u8vector): new functions * libguile/strings.h: new declaration for scm_i_string_contains_char * libguile/strings.c (scm_i_string_contains_char): new function (scm_from_stringn, scm_to_stringn): use NULL for Latin-1 (scm_from_locale_stringn, scm_to_locale_stringn): respect character encoding of input and output ports * libguile/read.h: declaration for scm_scan_for_encoding * libguile/read.c: (read_token): now takes scheme string instead of C string/length (read_complete_token): new function (scm_read_sexp, scm_read_number, scm_read_mixed_case_symbol) (scm_read_number_and_radix, scm_read_quote, scm_read_semicolon_comment) (scm_read_srfi4_vector, scm_read_bytevector, scm_read_guile_bit_vector) (scm_read_scsh_block_comment, scm_read_commented_expression) (scm_read_extended_symbol, scm_read_sharp_extension, scm_read_shart) (scm_read_expression): use scm_t_wchar for char type, use read_complete_token (scm_scan_for_encoding): new function to find a file's character encoding (scm_file_encoding): new function to find a port's character encoding * libguile/rdelim.c: don't unpack strings * libguile/print.h: declaration for modified function scm_i_charprint * libguile/print.c: use locale when printing characters and strings (scm_i_charprint): input parameter is now scm_t_wchar (scm_simple_format): don't unpack strings * libguile/posix.h: new declaration for scm_setbinary. * libguile/posix.c (scm_setlocale): set default and stdio port encodings based on the locale's character encoding (scm_setbinary): new function * libguile/ports.h (scm_t_port): add encoding and failed conversion handler to port type. Declarations for new or modified functions scm_getc, scm_unget_byte, scm_ungetc, scm_i_get_port_encoding, scm_i_set_port_encoding_x, scm_port_encoding, scm_set_port_encoding_x, scm_i_get_conversion_strategy, scm_i_set_conversion_strategy_x, scm_port_conversion_strategy, scm_set_port_conversion_strategy_x. * libguile/ports.c: assign the current ports to zero on startup so we can see if they've been set. (scm_current_input_port, scm_current_output_port, scm_current_error_port): return #f if the port is not yet initialized (scm_new_port_table_entry): set up a new port's encoding and illegal sequence handler based on the thread's current defaults (scm_i_remove_port): free port encoding name when port is removed (scm_i_mode_bits_n): now takes a scheme string instead of a c string and length. All callers changed. (SCM_MBCHAR_BUF_SIZE): new const (scm_getc): new function, since the scm_getc in inline.h is now scm_get_byte_or_eof. This pulls one codepoint from a port. (scm_lfwrite_substr, scm_lfwrite_str): now uses port's encoding (scm_unget_byte): new function, incorportaing the low-level functionality of scm_ungetc (scm_ungetc): uses scm_unget_byte * libguile/numbers.h (scm_t_wchar): compilation order problem with scm_t_wchar being use in functions in multiple headers. Forward declare scm_t_wchar. * libguile/load.c (scm_primitive_load): scan for file encoding at top of file and use it to set the load port's encoding * libguile/inline.h (scm_get_byte_or_eof): new function incorporating most of the functionality of scm_getc. * libguile/fports.c (fport_fill_input): now returns scm_t_wchar * libguile/chars.h (scm_t_wchar): avoid compilation order problem with declaration of scm_t_wchar
2009-08-25 07:54:37 -07:00
/* Set the default encoding for new ports. */
scm_i_set_default_port_encoding (enc);
Add full Unicode capability to ports and the default reader Ports are given two additional properties: a character encoding and a conversion failure strategy. These properties have getters and setters. The new properties are used to convert any locale text to/from the internal representation of strings. If unspecified, ports use a default value. The default value of these properties is held in a fluid. The default character encoding can be modified by calling setlocale. ISO-8859-1 is treated specially. Since it is a native encoding of strings, it can be processed more quickly. Source code is assumed to be ISO-8859-1 unless otherwise specified. The encoding of a source code file can be given as 'coding: XXXXX' in a magic comment at the top of a file. The C functions that deal with encoding often use a null pointer as shorthand for the native Latin-1 encoding, for efficiency's sake. * test-suite/tests/encoding-iso88591.test: new tests * test-suite/tests/encoding-iso88597.test: new tests * test-suite/tests/encoding-utf8.test: new tests * test-suite/tests/encoding-escapes.test: new tests * test-suite/tests/numbers.test: declare 'binary' encoding * test-suite/tests/ports.test: declare 'binary' encoding * test-suite/tests/r6rs-ports.test: declare 'binary' encoding * module/system/base/compile.scm (compile-file): use source-code file's self-declared encoding when compiling files * libguile/strports.c: store string ports in locale encoding (scm_strport_to_locale_u8vector, scm_call_with_output_locale_u8vector) (scm_open_input_locale_u8vector, scm_get_output_locale_u8vector): new functions * libguile/strings.h: new declaration for scm_i_string_contains_char * libguile/strings.c (scm_i_string_contains_char): new function (scm_from_stringn, scm_to_stringn): use NULL for Latin-1 (scm_from_locale_stringn, scm_to_locale_stringn): respect character encoding of input and output ports * libguile/read.h: declaration for scm_scan_for_encoding * libguile/read.c: (read_token): now takes scheme string instead of C string/length (read_complete_token): new function (scm_read_sexp, scm_read_number, scm_read_mixed_case_symbol) (scm_read_number_and_radix, scm_read_quote, scm_read_semicolon_comment) (scm_read_srfi4_vector, scm_read_bytevector, scm_read_guile_bit_vector) (scm_read_scsh_block_comment, scm_read_commented_expression) (scm_read_extended_symbol, scm_read_sharp_extension, scm_read_shart) (scm_read_expression): use scm_t_wchar for char type, use read_complete_token (scm_scan_for_encoding): new function to find a file's character encoding (scm_file_encoding): new function to find a port's character encoding * libguile/rdelim.c: don't unpack strings * libguile/print.h: declaration for modified function scm_i_charprint * libguile/print.c: use locale when printing characters and strings (scm_i_charprint): input parameter is now scm_t_wchar (scm_simple_format): don't unpack strings * libguile/posix.h: new declaration for scm_setbinary. * libguile/posix.c (scm_setlocale): set default and stdio port encodings based on the locale's character encoding (scm_setbinary): new function * libguile/ports.h (scm_t_port): add encoding and failed conversion handler to port type. Declarations for new or modified functions scm_getc, scm_unget_byte, scm_ungetc, scm_i_get_port_encoding, scm_i_set_port_encoding_x, scm_port_encoding, scm_set_port_encoding_x, scm_i_get_conversion_strategy, scm_i_set_conversion_strategy_x, scm_port_conversion_strategy, scm_set_port_conversion_strategy_x. * libguile/ports.c: assign the current ports to zero on startup so we can see if they've been set. (scm_current_input_port, scm_current_output_port, scm_current_error_port): return #f if the port is not yet initialized (scm_new_port_table_entry): set up a new port's encoding and illegal sequence handler based on the thread's current defaults (scm_i_remove_port): free port encoding name when port is removed (scm_i_mode_bits_n): now takes a scheme string instead of a c string and length. All callers changed. (SCM_MBCHAR_BUF_SIZE): new const (scm_getc): new function, since the scm_getc in inline.h is now scm_get_byte_or_eof. This pulls one codepoint from a port. (scm_lfwrite_substr, scm_lfwrite_str): now uses port's encoding (scm_unget_byte): new function, incorportaing the low-level functionality of scm_ungetc (scm_ungetc): uses scm_unget_byte * libguile/numbers.h (scm_t_wchar): compilation order problem with scm_t_wchar being use in functions in multiple headers. Forward declare scm_t_wchar. * libguile/load.c (scm_primitive_load): scan for file encoding at top of file and use it to set the load port's encoding * libguile/inline.h (scm_get_byte_or_eof): new function incorporating most of the functionality of scm_getc. * libguile/fports.c (fport_fill_input): now returns scm_t_wchar * libguile/chars.h (scm_t_wchar): avoid compilation order problem with declaration of scm_t_wchar
2009-08-25 07:54:37 -07:00
/* Set the encoding for the stdio ports. */
scm_i_set_port_encoding_x (scm_current_input_port (), enc);
scm_i_set_port_encoding_x (scm_current_output_port (), enc);
scm_i_set_port_encoding_x (scm_current_error_port (), enc);
2006-09-20 12:48:45 +00:00
scm_dynwind_end ();
return scm_from_locale_string (rv);
}
#undef FUNC_NAME
#endif /* HAVE_SETLOCALE */
#ifdef HAVE_MKNOD
SCM_DEFINE (scm_mknod, "mknod", 4, 0, 0,
(SCM path, SCM type, SCM perms, SCM dev),
"Creates a new special file, such as a file corresponding to a device.\n"
"@var{path} specifies the name of the file. @var{type} should\n"
"be one of the following symbols:\n"
"regular, directory, symlink, block-special, char-special,\n"
"fifo, or socket. @var{perms} (an integer) specifies the file permissions.\n"
"@var{dev} (an integer) specifies which device the special file refers\n"
"to. Its exact interpretation depends on the kind of special file\n"
"being created.\n\n"
"E.g.,\n"
"@lisp\n"
2000-09-02 23:20:40 +00:00
"(mknod \"/dev/fd0\" 'block-special #o660 (+ (* 2 256) 2))\n"
"@end lisp\n\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_mknod
{
int val;
const char *p;
int ctype = 0;
SCM_VALIDATE_STRING (1, path);
SCM_VALIDATE_SYMBOL (2, type);
p = scm_i_symbol_chars (type);
if (strcmp (p, "regular") == 0)
ctype = S_IFREG;
else if (strcmp (p, "directory") == 0)
ctype = S_IFDIR;
2006-06-17 23:15:59 +00:00
#ifdef S_IFLNK
/* systems without symlinks probably don't have S_IFLNK defined */
else if (strcmp (p, "symlink") == 0)
ctype = S_IFLNK;
2006-06-17 23:15:59 +00:00
#endif
else if (strcmp (p, "block-special") == 0)
ctype = S_IFBLK;
else if (strcmp (p, "char-special") == 0)
ctype = S_IFCHR;
else if (strcmp (p, "fifo") == 0)
ctype = S_IFIFO;
#ifdef S_IFSOCK
else if (strcmp (p, "socket") == 0)
ctype = S_IFSOCK;
#endif
else
SCM_OUT_OF_RANGE (2, type);
STRING_SYSCALL (path, c_path,
val = mknod (c_path,
ctype | scm_to_int (perms),
scm_to_int (dev)));
if (val != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_MKNOD */
#ifdef HAVE_NICE
SCM_DEFINE (scm_nice, "nice", 1, 0, 0,
(SCM incr),
"Increment the priority of the current process by @var{incr}. A higher\n"
"priority value means that the process runs less often.\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_nice
{
/* nice() returns "prio-NZERO" on success or -1 on error, but -1 can arise
from "prio-NZERO", so an error must be detected from errno changed */
errno = 0;
nice (scm_to_int (incr));
if (errno != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_NICE */
#ifdef HAVE_SYNC
SCM_DEFINE (scm_sync, "sync", 0, 0, 0,
(),
"Flush the operating system disk buffers.\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_sync
{
sync();
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SYNC */
/* crypt() returns a pointer to a static buffer, so we use scm_i_misc_mutex
to avoid another thread overwriting it. A test program running crypt
continuously in two threads can be quickly seen tripping this problem.
crypt() is pretty slow normally, so a mutex shouldn't add much overhead.
glibc has a thread-safe crypt_r, but (in version 2.3.2) it runs a lot
slower (about 5x) than plain crypt if you pass an uninitialized data
block each time. Presumably there's some one-time setups. The best way
to use crypt_r for parallel execution in multiple threads would probably
be to maintain a little pool of initialized crypt_data structures, take
one and use it, then return it to the pool. That pool could be garbage
collected so it didn't add permanently to memory use if only a few crypt
calls are made. But we expect crypt will be used rarely, and even more
rarely will there be any desire for lots of parallel execution on
multiple cpus. So for now we don't bother with anything fancy, just
ensure it works. */
#ifdef HAVE_CRYPT
SCM_DEFINE (scm_crypt, "crypt", 2, 0, 0,
(SCM key, SCM salt),
"Encrypt @var{key} using @var{salt} as the salt value to the\n"
2001-11-11 15:01:52 +00:00
"crypt(3) library call.")
#define FUNC_NAME s_scm_crypt
{
int err;
SCM ret;
2007-01-15 23:42:45 +00:00
char *c_key, *c_salt, *c_ret;
scm_dynwind_begin (0);
c_key = scm_to_locale_string (key);
scm_dynwind_free (c_key);
c_salt = scm_to_locale_string (salt);
scm_dynwind_free (c_salt);
/* Take the lock because 'crypt' uses a static buffer. */
scm_i_dynwind_pthread_mutex_lock (&scm_i_misc_mutex);
2007-01-15 23:42:45 +00:00
/* The Linux crypt(3) man page says crypt will return NULL and set errno
on error. (Eg. ENOSYS if legal restrictions mean it cannot be
implemented). */
c_ret = crypt (c_key, c_salt);
2007-01-15 23:42:45 +00:00
if (c_ret == NULL)
{
/* Note: Do not throw until we've released 'scm_i_misc_mutex'
since this would cause a deadlock down the path. */
err = errno;
ret = SCM_BOOL_F;
}
else
{
err = 0;
ret = scm_from_locale_string (c_ret);
}
scm_dynwind_end ();
if (scm_is_false (ret))
{
errno = err;
SCM_SYSERROR;
}
return ret;
}
#undef FUNC_NAME
#endif /* HAVE_CRYPT */
#if HAVE_CHROOT
SCM_DEFINE (scm_chroot, "chroot", 1, 0, 0,
(SCM path),
"Change the root directory to that specified in @var{path}.\n"
"This directory will be used for path names beginning with\n"
"@file{/}. The root directory is inherited by all children\n"
"of the current process. Only the superuser may change the\n"
"root directory.")
#define FUNC_NAME s_scm_chroot
{
int rv;
WITH_STRING (path, c_path,
rv = chroot (c_path));
if (rv == -1)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_CHROOT */
SCM_DEFINE (scm_getlogin, "getlogin", 0, 0, 0,
(void),
"Return a string containing the name of the user logged in on\n"
"the controlling terminal of the process, or @code{#f} if this\n"
"information cannot be obtained.")
#define FUNC_NAME s_scm_getlogin
{
char * p;
p = getlogin ();
if (!p || !*p)
return SCM_BOOL_F;
return scm_from_locale_string (p);
}
#undef FUNC_NAME
#if HAVE_GETPRIORITY
SCM_DEFINE (scm_getpriority, "getpriority", 2, 0, 0,
(SCM which, SCM who),
"Return the scheduling priority of the process, process group\n"
"or user, as indicated by @var{which} and @var{who}. @var{which}\n"
"is one of the variables @code{PRIO_PROCESS}, @code{PRIO_PGRP}\n"
"or @code{PRIO_USER}, and @var{who} is interpreted relative to\n"
"@var{which} (a process identifier for @code{PRIO_PROCESS},\n"
"process group identifier for @code{PRIO_PGRP}, and a user\n"
"identifier for @code{PRIO_USER}. A zero value of @var{who}\n"
"denotes the current process, process group, or user. Return\n"
"the highest priority (lowest numerical value) of any of the\n"
"specified processes.")
#define FUNC_NAME s_scm_getpriority
{
int cwhich, cwho, ret;
cwhich = scm_to_int (which);
cwho = scm_to_int (who);
/* We have to clear errno and examine it later, because -1 is a
legal return value for getpriority(). */
errno = 0;
ret = getpriority (cwhich, cwho);
if (errno != 0)
SCM_SYSERROR;
return scm_from_int (ret);
}
#undef FUNC_NAME
#endif /* HAVE_GETPRIORITY */
#if HAVE_SETPRIORITY
SCM_DEFINE (scm_setpriority, "setpriority", 3, 0, 0,
(SCM which, SCM who, SCM prio),
"Set the scheduling priority of the process, process group\n"
"or user, as indicated by @var{which} and @var{who}. @var{which}\n"
"is one of the variables @code{PRIO_PROCESS}, @code{PRIO_PGRP}\n"
"or @code{PRIO_USER}, and @var{who} is interpreted relative to\n"
"@var{which} (a process identifier for @code{PRIO_PROCESS},\n"
"process group identifier for @code{PRIO_PGRP}, and a user\n"
"identifier for @code{PRIO_USER}. A zero value of @var{who}\n"
"denotes the current process, process group, or user.\n"
"@var{prio} is a value in the range -20 and 20, the default\n"
"priority is 0; lower priorities cause more favorable\n"
"scheduling. Sets the priority of all of the specified\n"
"processes. Only the super-user may lower priorities.\n"
"The return value is not specified.")
#define FUNC_NAME s_scm_setpriority
{
int cwhich, cwho, cprio;
cwhich = scm_to_int (which);
cwho = scm_to_int (who);
cprio = scm_to_int (prio);
if (setpriority (cwhich, cwho, cprio) == -1)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETPRIORITY */
#ifdef HAVE_SCHED_GETAFFINITY
static SCM
cpu_set_to_bitvector (const cpu_set_t *cs)
{
SCM bv;
size_t cpu;
bv = scm_c_make_bitvector (CPU_SETSIZE, SCM_BOOL_F);
for (cpu = 0; cpu < CPU_SETSIZE; cpu++)
{
if (CPU_ISSET (cpu, cs))
/* XXX: This is inefficient but avoids code duplication. */
scm_c_bitvector_set_x (bv, cpu, SCM_BOOL_T);
}
return bv;
}
SCM_DEFINE (scm_getaffinity, "getaffinity", 1, 0, 0,
(SCM pid),
"Return a bitvector representing the CPU affinity mask for\n"
"process @var{pid}. Each CPU the process has affinity with\n"
"has its corresponding bit set in the returned bitvector.\n"
"The number of bits set is a good estimate of how many CPUs\n"
"Guile can use without stepping on other processes' toes.")
#define FUNC_NAME s_scm_getaffinity
{
int err;
cpu_set_t cs;
CPU_ZERO (&cs);
err = sched_getaffinity (scm_to_int (pid), sizeof (cs), &cs);
if (err)
SCM_SYSERROR;
return cpu_set_to_bitvector (&cs);
}
#undef FUNC_NAME
#endif /* HAVE_SCHED_GETAFFINITY */
#ifdef HAVE_SCHED_SETAFFINITY
SCM_DEFINE (scm_setaffinity, "setaffinity", 2, 0, 0,
(SCM pid, SCM mask),
"Install the CPU affinity mask @var{mask}, a bitvector, for\n"
"the process or thread with ID @var{pid}. The return value\n"
"is unspecified.")
#define FUNC_NAME s_scm_setaffinity
{
cpu_set_t cs;
scm_t_array_handle handle;
Replace uses of scm_t_int8, scm_t_uintmax, etc with stdint types * libguile/bitvectors.c: * libguile/bitvectors.h: * libguile/bytevectors.c: * libguile/bytevectors.h: * libguile/chars.c: * libguile/continuations.c: * libguile/control.c: * libguile/conv-integer.i.c: * libguile/conv-uinteger.i.c: * libguile/dynstack.c: * libguile/dynstack.h: * libguile/foreign.c: * libguile/frames.c: * libguile/frames.h: * libguile/gc-inline.h: * libguile/gc.h: * libguile/gsubr.c: * libguile/gsubr.h: * libguile/hash.c: * libguile/i18n.c: * libguile/instructions.c: * libguile/intrinsics.c: * libguile/intrinsics.h: * libguile/loader.c: * libguile/loader.h: * libguile/numbers.c: * libguile/numbers.h: * libguile/pairs.c: * libguile/ports-internal.h: * libguile/ports.c: * libguile/ports.h: * libguile/posix.c: * libguile/print.c: * libguile/print.h: * libguile/programs.c: * libguile/programs.h: * libguile/r6rs-ports.c: * libguile/random.c: * libguile/random.h: * libguile/scm.h: * libguile/socket.c: * libguile/srfi-4.c: * libguile/srfi-4.h: * libguile/stacks.c: * libguile/stime.c: * libguile/strings.c: * libguile/struct.c: * libguile/struct.h: * libguile/symbols.c: * libguile/threads.c: * libguile/threads.h: * libguile/uniform.c: * libguile/vm-engine.c: * libguile/vm.c: * libguile/vm.h: * libguile/vports.c: * test-suite/standalone/test-conversion.c: * test-suite/standalone/test-ffi-lib.c: * test-suite/standalone/test-scm-take-u8vector.c: * test-suite/standalone/test-srfi-4.c: Replace e.g. scm_t_uint8 with uint8_t.
2018-06-21 08:39:03 +02:00
const uint32_t *c_mask;
size_t len, off, cpu;
ssize_t inc;
int err;
c_mask = scm_bitvector_elements (mask, &handle, &off, &len, &inc);
CPU_ZERO (&cs);
for (cpu = 0; cpu < len; cpu++)
{
size_t idx;
idx = cpu * inc + off;
if (c_mask[idx / 32] & (1UL << (idx % 32)))
CPU_SET (cpu, &cs);
}
err = sched_setaffinity (scm_to_int (pid), sizeof (cs), &cs);
if (err)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SCHED_SETAFFINITY */
#if HAVE_GETPASS
SCM_DEFINE (scm_getpass, "getpass", 1, 0, 0,
(SCM prompt),
"Display @var{prompt} to the standard error output and read\n"
"a password from @file{/dev/tty}. If this file is not\n"
"accessible, it reads from standard input. The password may be\n"
"up to 127 characters in length. Additional characters and the\n"
"terminating newline character are discarded. While reading\n"
"the password, echoing and the generation of signals by special\n"
"characters is disabled.")
#define FUNC_NAME s_scm_getpass
{
char * p;
SCM passwd;
SCM_VALIDATE_STRING (1, prompt);
WITH_STRING (prompt, c_prompt,
p = getpass(c_prompt));
passwd = scm_from_locale_string (p);
/* Clear out the password in the static buffer. */
memset (p, 0, strlen (p));
return passwd;
}
#undef FUNC_NAME
#endif /* HAVE_GETPASS */
SCM_DEFINE (scm_flock, "flock", 2, 0, 0,
(SCM file, SCM operation),
"Apply or remove an advisory lock on an open file.\n"
"@var{operation} specifies the action to be done:\n"
"\n"
"@defvar LOCK_SH\n"
"Shared lock. More than one process may hold a shared lock\n"
"for a given file at a given time.\n"
"@end defvar\n"
"@defvar LOCK_EX\n"
"Exclusive lock. Only one process may hold an exclusive lock\n"
"for a given file at a given time.\n"
"@end defvar\n"
"@defvar LOCK_UN\n"
"Unlock the file.\n"
"@end defvar\n"
"@defvar LOCK_NB\n"
"Don't block when locking. This is combined with one of the\n"
"other operations using @code{logior}. If @code{flock} would\n"
"block an @code{EWOULDBLOCK} error is thrown.\n"
"@end defvar\n"
"\n"
"The return value is not specified. @var{file} may be an open\n"
"file descriptor or an open file descriptor port.\n"
"\n"
"Note that @code{flock} does not lock files across NFS.")
#define FUNC_NAME s_scm_flock
{
int fdes;
if (scm_is_integer (file))
fdes = scm_to_int (file);
else
{
SCM_VALIDATE_OPFPORT (2, file);
fdes = SCM_FPORT_FDES (file);
}
if (flock (fdes, scm_to_int (operation)) == -1)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#if HAVE_SETHOSTNAME
SCM_DEFINE (scm_sethostname, "sethostname", 1, 0, 0,
(SCM name),
"Set the host name of the current processor to @var{name}. May\n"
"only be used by the superuser. The return value is not\n"
"specified.")
#define FUNC_NAME s_scm_sethostname
{
int rv;
WITH_STRING (name, c_name,
rv = sethostname (c_name, strlen(c_name)));
if (rv == -1)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETHOSTNAME */
#if HAVE_GETHOSTNAME
SCM_DEFINE (scm_gethostname, "gethostname", 0, 0, 0,
(void),
"Return the host name of the current processor.")
#define FUNC_NAME s_scm_gethostname
{
#ifdef MAXHOSTNAMELEN
/* Various systems define MAXHOSTNAMELEN (including Solaris in fact).
* On GNU/Linux this doesn't include the terminating '\0', hence "+ 1". */
const int len = MAXHOSTNAMELEN + 1;
char *const p = scm_malloc (len);
const int res = gethostname (p, len);
scm_dynwind_begin (0);
scm_dynwind_unwind_handler (free, p, 0);
#else
/* Default 256 is for Solaris, under Linux ENAMETOOLONG is returned if not
* large enough. SUSv2 specifies 255 maximum too, apparently. */
int len = 256;
int res;
char *p;
# if HAVE_SYSCONF && defined (_SC_HOST_NAME_MAX)
/* POSIX specifies the HOST_NAME_MAX system parameter for the max size,
* which may reflect a particular kernel configuration.
* Must watch out for this existing but giving -1, as happens for instance
* in gnu/linux glibc 2.3.2. */
{
const long int n = sysconf (_SC_HOST_NAME_MAX);
if (n != -1L)
len = n;
}
# endif
p = scm_malloc (len);
scm_dynwind_begin (0);
scm_dynwind_unwind_handler (free, p, 0);
res = gethostname (p, len);
while (res == -1 && errno == ENAMETOOLONG)
{
len *= 2;
/* scm_realloc may throw an exception. */
p = scm_realloc (p, len);
res = gethostname (p, len);
}
#endif
if (res == -1)
{
const int save_errno = errno;
2006-04-17 00:05:42 +00:00
/* No guile exceptions can occur before we have freed p's memory. */
scm_dynwind_end ();
free (p);
errno = save_errno;
SCM_SYSERROR;
}
else
{
/* scm_from_locale_string may throw an exception. */
const SCM name = scm_from_locale_string (p);
2006-04-17 00:05:42 +00:00
/* No guile exceptions can occur before we have freed p's memory. */
scm_dynwind_end ();
free (p);
return name;
}
}
#undef FUNC_NAME
#endif /* HAVE_GETHOSTNAME */
#ifdef HAVE_START_CHILD
static void
scm_init_popen (void)
{
scm_c_define_gsubr ("open-process", 2, 0, 1, scm_open_process);
}
#endif /* HAVE_START_CHILD */
2006-11-18 18:14:55 +00:00
void
scm_init_posix ()
{
scm_add_feature ("posix");
#ifdef EXIT_SUCCESS
scm_c_define ("EXIT_SUCCESS", scm_from_int (EXIT_SUCCESS));
#endif
#ifdef EXIT_FAILURE
scm_c_define ("EXIT_FAILURE", scm_from_int (EXIT_FAILURE));
#endif
#ifdef HAVE_GETEUID
scm_add_feature ("EIDs");
#endif
#ifdef WAIT_ANY
scm_c_define ("WAIT_ANY", scm_from_int (WAIT_ANY));
#endif
#ifdef WAIT_MYPGRP
scm_c_define ("WAIT_MYPGRP", scm_from_int (WAIT_MYPGRP));
#endif
#ifdef WNOHANG
scm_c_define ("WNOHANG", scm_from_int (WNOHANG));
#endif
#ifdef WUNTRACED
scm_c_define ("WUNTRACED", scm_from_int (WUNTRACED));
#endif
#ifdef LC_COLLATE
scm_c_define ("LC_COLLATE", scm_from_int (LC_COLLATE));
#endif
#ifdef LC_CTYPE
scm_c_define ("LC_CTYPE", scm_from_int (LC_CTYPE));
#endif
#ifdef LC_MONETARY
scm_c_define ("LC_MONETARY", scm_from_int (LC_MONETARY));
#endif
#ifdef LC_NUMERIC
scm_c_define ("LC_NUMERIC", scm_from_int (LC_NUMERIC));
#endif
#ifdef LC_TIME
scm_c_define ("LC_TIME", scm_from_int (LC_TIME));
#endif
#ifdef LC_MESSAGES
scm_c_define ("LC_MESSAGES", scm_from_int (LC_MESSAGES));
#endif
#ifdef LC_ALL
scm_c_define ("LC_ALL", scm_from_int (LC_ALL));
#endif
#ifdef LC_PAPER
scm_c_define ("LC_PAPER", scm_from_int (LC_PAPER));
#endif
#ifdef LC_NAME
scm_c_define ("LC_NAME", scm_from_int (LC_NAME));
#endif
#ifdef LC_ADDRESS
scm_c_define ("LC_ADDRESS", scm_from_int (LC_ADDRESS));
#endif
#ifdef LC_TELEPHONE
scm_c_define ("LC_TELEPHONE", scm_from_int (LC_TELEPHONE));
#endif
#ifdef LC_MEASUREMENT
scm_c_define ("LC_MEASUREMENT", scm_from_int (LC_MEASUREMENT));
#endif
#ifdef LC_IDENTIFICATION
scm_c_define ("LC_IDENTIFICATION", scm_from_int (LC_IDENTIFICATION));
#endif
#ifdef PIPE_BUF
scm_c_define ("PIPE_BUF", scm_from_long (PIPE_BUF));
#endif
#ifdef PRIO_PROCESS
scm_c_define ("PRIO_PROCESS", scm_from_int (PRIO_PROCESS));
#endif
#ifdef PRIO_PGRP
scm_c_define ("PRIO_PGRP", scm_from_int (PRIO_PGRP));
#endif
#ifdef PRIO_USER
scm_c_define ("PRIO_USER", scm_from_int (PRIO_USER));
#endif
#ifdef LOCK_SH
scm_c_define ("LOCK_SH", scm_from_int (LOCK_SH));
#endif
#ifdef LOCK_EX
scm_c_define ("LOCK_EX", scm_from_int (LOCK_EX));
#endif
#ifdef LOCK_UN
scm_c_define ("LOCK_UN", scm_from_int (LOCK_UN));
#endif
#ifdef LOCK_NB
scm_c_define ("LOCK_NB", scm_from_int (LOCK_NB));
#endif
#ifdef AT_SYMLINK_NOFOLLOW
scm_c_define ("AT_SYMLINK_NOFOLLOW", scm_from_int (AT_SYMLINK_NOFOLLOW));
#endif
#ifdef AT_SYMLINK_FOLLOW
scm_c_define ("AT_SYMLINK_FOLLOW", scm_from_int (AT_SYMLINK_FOLLOW));
#endif
#ifdef AT_NO_AUTOMOUNT
scm_c_define ("AT_NO_AUTOMOUNT", scm_from_int (AT_NO_AUTOMOUNT));
#endif
#ifdef AT_EMPTY_PATH
scm_c_define ("AT_EMPTY_PATH", scm_from_int (AT_EMPTY_PATH));
#endif
#include "cpp-SIG.c"
#include "posix.x"
#ifdef HAVE_FORK
scm_add_feature ("fork");
#endif /* HAVE_FORK */
#ifdef HAVE_START_CHILD
scm_add_feature ("popen");
scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION,
"scm_init_popen",
(scm_t_extension_init_func) scm_init_popen,
NULL);
#endif /* HAVE_START_CHILD */
}