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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libiberty/sigsetmask.c | |
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Diffstat (limited to 'libiberty/sigsetmask.c')
-rw-r--r-- | libiberty/sigsetmask.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libiberty/sigsetmask.c b/libiberty/sigsetmask.c new file mode 100644 index 000000000..3b708b16a --- /dev/null +++ b/libiberty/sigsetmask.c @@ -0,0 +1,40 @@ +/* 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 (void) ATTRIBUTE_NORETURN; + +#ifdef SIG_SETMASK +int +sigsetmask (int set) +{ + sigset_t new_sig; + sigset_t old_sig; + + sigemptyset (&new_sig); + if (set != 0) { + abort(); /* FIXME, we don't know how to translate old mask to new */ + } + sigprocmask(SIG_SETMASK, &new_sig, &old_sig); + return 1; /* FIXME, we always return 1 as old value. */ +} +#endif |