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* configure.in: Added code to enable GUILE_ISELECT on systems

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which have the necessary functions (gettimeofday, select).

* acconfig.h: Added GUILE_ISELECT.
This commit is contained in:
Mikael Djurfeldt 1997-11-27 18:03:06 +00:00
commit 933a7411bb
4 changed files with 37 additions and 1 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
1997-11-27 Mikael Djurfeldt <mdj@mdj.nada.kth.se>
* configure.in: Added code to enable GUILE_ISELECT on systems
which have the necessary functions (gettimeofday, select).
* acconfig.h: Added GUILE_ISELECT.
1997-11-24 Tim Pierce <twp@twp.tezcat.com>
* acinclude.m4: Assume dlsym does not add underscore if

13
NEWS
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@ -375,6 +375,19 @@ missing.
* Changes to the scm_ interface
** Function: int scm_internal_select (int fds,
SELECT_TYPE *rfds,
SELECT_TYPE *wfds,
SELECT_TYPE *efds,
struct timeval *timeout);
This is a replacement for the `select' function provided by the OS.
It enables I/O blocking and sleeping to happen for one cooperative
thread without blocking other threads. It also avoids busy-loops in
these situations. It is intended that all I/O blocking and sleeping
will finally go through this function. Currently, this function is
only available on systems providing `gettimeofday' and `select'.
** Function: SCM scm_internal_stack_catch (SCM tag,
scm_catch_body_t body,
void *body_data,

3
acconfig.h
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@ -51,6 +51,9 @@
the Guile library itself. */
#undef GUILE_DEBUG
/* Define to implement scm_internal_select */
#undef GUILE_ISELECT
/* Define if using cooperative multithreading. */
#undef USE_COOP_THREADS

15
configure.in
View file

@ -92,7 +92,7 @@ fi
GUILE_DLSYM_USCORE
AC_CHECK_FUNCS(ctermid ftime getcwd geteuid gethostent gettimeofday lstat mkdir mknod nice readlink rename rmdir select setegid seteuid setlocale setpgid setsid sigaction strftime strptime symlink sync tcgetpgrp tcsetpgrp times uname waitpid)
AC_CHECK_FUNCS(ctermid ftime getcwd geteuid gethostent gettimeofday lstat mkdir mknod nice readlink rename rmdir select setegid seteuid setlocale setpgid setsid sigaction strftime strptime symlink sync tcgetpgrp tcsetpgrp times uname waitpid bzero)
dnl <GNU-WIN32 hacks>
@ -320,6 +320,19 @@ if test "$cy_cv_threads_package" != ""; then
LIBOBJS="$LIBOBJS threads.o"
fi
#--------------------------------------------------------------------
#
# scm_internal_select
#
#--------------------------------------------------------------------
if test "$cy_cv_threads_package" != "" &&
test $ac_cv_func_gettimeofday = yes &&
test $ac_cv_func_select = yes; then
AC_DEFINE(GUILE_ISELECT, 1)
LIBOBJS="$LIBOBJS iselect.o"
fi
## If we're using GCC, ask for aggressive warnings.
case "$GCC" in
yes ) CFLAGS="$CFLAGS -Wall -Wpointer-arith" ;;