musl/src/thread/pthread_sigmask.c
Rich Felker ad5881842e clean up pthread_sigmask/sigprocmask dependency order
it's nicer for the function that doesn't use errno to be independent,
and have the other one call it. saves some time and avoids clobbering
errno.
2011-07-30 21:09:14 -04:00

10 lines
239 B
C

#include <signal.h>
#include <errno.h>
#include <pthread.h>
#include "syscall.h"
int pthread_sigmask(int how, const sigset_t *set, sigset_t *old)
{
if (how > 2U) return EINVAL;
return -__syscall(SYS_rt_sigprocmask, how, set, old, 8);
}