Mercurial > hg > octave-jordi > gnulib-hg
diff lib/signal.in.h @ 10228:9b123d1aa781
Improve robustness of sigprocmask by overriding signal.
* lib/signal.in.h (rpl_signal): Override signal when sigprocmask
is in use.
* lib/sigprocmask.c (blocked_handler): Reinstall block handler.
(SIGKILL, SIGSTOP): Provide fallbacks.
(rpl_signal): Implement.
(old_handlers, blocked_set): Mark volatile, since sigprocmask and
signal can be called inside handlers.
Signed-off-by: Eric Blake <ebb9@byu.net>
| author | Eric Blake <ebb9@byu.net> |
|---|---|
| date | Sat, 21 Jun 2008 07:06:28 -0600 |
| parents | bbbbbf4cd1c5 |
| children | 29502a2dd08a |
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line diff
--- a/lib/signal.in.h +++ b/lib/signal.in.h @@ -1,6 +1,6 @@ /* A GNU-like <signal.h>. - Copyright (C) 2006-2007 Free Software Foundation, Inc. + Copyright (C) 2006-2008 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -33,6 +33,10 @@ /* The definition of GL_LINK_WARNING is copied here. */ +/* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */ +#if !@HAVE_POSIX_SIGNALBLOCKING@ +# include <sys/types.h> +#endif #ifdef __cplusplus extern "C" { @@ -41,9 +45,6 @@ #if !@HAVE_POSIX_SIGNALBLOCKING@ -/* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>. */ -# include <sys/types.h> - /* Maximum signal number + 1. */ # ifndef NSIG # define NSIG 32 @@ -85,6 +86,11 @@ # define SIG_UNBLOCK 2 /* blocked_set = blocked_set & ~*set; */ extern int sigprocmask (int operation, const sigset_t *set, sigset_t *old_set); +# define signal rpl_signal +/* Install the handler FUNC for signal SIG, and return the previous + handler. */ +extern void (*signal (int sig, void (*func) (int))) (int); + #endif