fusl/src/thread/pthread_sigmask.c - Issue 1573973002: Add a "fork" of musl as //fusl.

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Side by Side Diff: fusl/src/thread/pthread_sigmask.c

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master

Patch Set: Created 4 years, 11 months ago

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	1 #include <signal.h>

	2 #include <errno.h>

	3 #include "syscall.h"

	4

	5 int pthread_sigmask(int how, const sigset_t restrict set, sigset_t restrict ol d)

	6 {

	7 int ret;

	8 if ((unsigned)how - SIG_BLOCK > 2U) return EINVAL;

	9 ret = -__syscall(SYS_rt_sigprocmask, how, set, old, _NSIG/8);

	10 if (!ret && old) {

	11 if (sizeof old->__bits[0] == 8) {

	12 old->__bits[0] &= ~0x380000000ULL;

	13 } else {

	14 old->__bits[0] &= ~0x80000000UL;

	15 old->__bits[1] &= ~0x3UL;

	16 }

	17 }

	18 return ret;

	19 }

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