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Imported from ../bash-2.04.tar.gz.

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This commit is contained in:
Jari Aalto 2000-03-17 21:46:59 +00:00
commit bb70624e96
387 changed files with 28522 additions and 9334 deletions
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54
lib/readline/signals.c
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@ -7,7 +7,7 @@
The GNU Readline Library is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 1, or
as published by the Free Software Foundation; either version 2, or
(at your option) any later version.
The GNU Readline Library is distributed in the hope that it will be
@ -18,7 +18,7 @@
The GNU General Public License is often shipped with GNU software, and
is generally kept in a file called COPYING or LICENSE. If you do not
have a copy of the license, write to the Free Software Foundation,
675 Mass Ave, Cambridge, MA 02139, USA. */
59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#define READLINE_LIBRARY
#if defined (HAVE_CONFIG_H)
@ -40,15 +40,13 @@
# include <sys/ioctl.h>
#endif /* GWINSZ_IN_SYS_IOCTL */
#if defined (__GO32__)
# undef HANDLE_SIGNALS
#endif /* __GO32__ */
#if defined (HANDLE_SIGNALS)
/* Some standard library routines. */
#include "readline.h"
#include "history.h"
#include "rlprivate.h"
#if !defined (RETSIGTYPE)
# if defined (VOID_SIGHANDLER)
# define RETSIGTYPE void
@ -67,19 +65,15 @@
to say SigHandler *foo = signal (SIGKILL, SIG_IGN); */
typedef RETSIGTYPE SigHandler ();
extern int readline_echoing_p;
extern int rl_pending_input;
extern int _rl_meta_flag;
#if defined (HAVE_POSIX_SIGNALS)
typedef struct sigaction sighandler_cxt;
# define rl_sigaction(s, nh, oh) sigaction(s, nh, oh)
#else
typedef struct { SigHandler *sa_handler; int sa_mask, sa_flags; } sighandler_cxt;
# define sigemptyset(m)
#endif /* !HAVE_POSIX_SIGNALS */
extern void free_undo_list ();
extern void _rl_get_screen_size ();
extern void _rl_redisplay_after_sigwinch ();
extern void _rl_clean_up_for_exit ();
extern void _rl_kill_kbd_macro ();
extern void _rl_init_argument ();
extern void rl_deprep_terminal (), rl_prep_terminal ();
static SigHandler *rl_set_sighandler ();
static SigHandler *rl_set_sighandler __P((int, SigHandler *, sighandler_cxt *));
/* Exported variables for use by applications. */
@ -101,14 +95,6 @@ static int sigwinch_set_flag;
/* */
/* **************************************************************** */
#if defined (HAVE_POSIX_SIGNALS)
typedef struct sigaction sighandler_cxt;
# define rl_sigaction(s, nh, oh) sigaction(s, nh, oh)
#else
typedef struct { SigHandler *sa_handler; int sa_mask, sa_flags; } sighandler_cxt;
# define sigemptyset(m)
#endif /* !HAVE_POSIX_SIGNALS */
static sighandler_cxt old_int, old_term, old_alrm, old_quit;
#if defined (SIGTSTP)
static sighandler_cxt old_tstp, old_ttou, old_ttin;
@ -165,6 +151,10 @@ rl_signal_handler (sig)
# endif /* HAVE_BSD_SIGNALS */
#endif /* !HAVE_POSIX_SIGNALS */
#if defined (__EMX__)
signal (sig, SIG_ACK);
#endif
kill (getpid (), sig);
/* Let the signal that we just sent through. */
@ -232,6 +222,7 @@ rl_set_sighandler (sig, handler, ohandler)
SigHandler *handler;
sighandler_cxt *ohandler;
{
sighandler_cxt old_handler;
#if defined (HAVE_POSIX_SIGNALS)
struct sigaction act;
@ -239,10 +230,17 @@ rl_set_sighandler (sig, handler, ohandler)
act.sa_flags = 0;
sigemptyset (&act.sa_mask);
sigemptyset (&ohandler->sa_mask);
sigaction (sig, &act, ohandler);
sigaction (sig, &act, &old_handler);
#else
ohandler->sa_handler = (SigHandler *)signal (sig, handler);
old_handler.sa_handler = (SigHandler *)signal (sig, handler);
#endif /* !HAVE_POSIX_SIGNALS */
/* XXX -- assume we have memcpy */
/* If rl_set_signals is called twice in a row, don't set the old handler to
rl_signal_handler, because that would cause infinite recursion. */
if (handler != rl_signal_handler || old_handler.sa_handler != rl_signal_handler)
memcpy (ohandler, &old_handler, sizeof (sighandler_cxt));
return (ohandler->sa_handler);
}