buildtools/gcc4/libiberty/sigsetmask.c
Ingo Weinhold b4ad2f5e97 Copying gcc 4 into the main trunk.
git-svn-id: file:///srv/svn/repos/haiku/buildtools/trunk@14971 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-11-16 19:04:34 +00:00

42 lines
924 B
C

/* Version of sigsetmask.c
Written by Steve Chamberlain (sac@cygnus.com).
Contributed by Cygnus Support.
This file is in the public doamin. */
/*
@deftypefn Supplemental int sigsetmask (int @var{set})
Sets the signal mask to the one provided in @var{set} and returns
the old mask (which, for libiberty's implementation, will always
be the value @code{1}).
@end deftypefn
*/
#define _POSIX_SOURCE
#include <ansidecl.h>
/* Including <sys/types.h> seems to be needed by ISC. */
#include <sys/types.h>
#include <signal.h>
extern void abort PARAMS ((void)) ATTRIBUTE_NORETURN;
#ifdef SIG_SETMASK
int
sigsetmask (set)
int set;
{
sigset_t new;
sigset_t old;
sigemptyset (&new);
if (set != 0) {
abort(); /* FIXME, we don't know how to translate old mask to new */
}
sigprocmask(SIG_SETMASK, &new, &old);
return 1; /* FIXME, we always return 1 as old value. */
}
#endif