Mercurial > hg > CbC > CbC_gcc
comparison libiberty/sigsetmask.c @ 0:a06113de4d67
first commit
| author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 17 Jul 2009 14:47:48 +0900 |
| parents | |
| children | 04ced10e8804 |
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| -1:000000000000 | 0:a06113de4d67 |
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| 1 /* Version of sigsetmask.c | |
| 2 Written by Steve Chamberlain (sac@cygnus.com). | |
| 3 Contributed by Cygnus Support. | |
| 4 This file is in the public doamin. */ | |
| 5 | |
| 6 /* | |
| 7 | |
| 8 @deftypefn Supplemental int sigsetmask (int @var{set}) | |
| 9 | |
| 10 Sets the signal mask to the one provided in @var{set} and returns | |
| 11 the old mask (which, for libiberty's implementation, will always | |
| 12 be the value @code{1}). | |
| 13 | |
| 14 @end deftypefn | |
| 15 | |
| 16 */ | |
| 17 | |
| 18 #define _POSIX_SOURCE | |
| 19 #include <ansidecl.h> | |
| 20 /* Including <sys/types.h> seems to be needed by ISC. */ | |
| 21 #include <sys/types.h> | |
| 22 #include <signal.h> | |
| 23 | |
| 24 extern void abort (void) ATTRIBUTE_NORETURN; | |
| 25 | |
| 26 #ifdef SIG_SETMASK | |
| 27 int | |
| 28 sigsetmask (int set) | |
| 29 { | |
| 30 sigset_t new_sig; | |
| 31 sigset_t old_sig; | |
| 32 | |
| 33 sigemptyset (&new_sig); | |
| 34 if (set != 0) { | |
| 35 abort(); /* FIXME, we don't know how to translate old mask to new */ | |
| 36 } | |
| 37 sigprocmask(SIG_SETMASK, &new_sig, &old_sig); | |
| 38 return 1; /* FIXME, we always return 1 as old value. */ | |
| 39 } | |
| 40 #endif |