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//===-- Linux implementation of sigprocmask -------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/signal/sigprocmask.h"
#include "hdr/types/sigset_t.h"
#include "src/__support/OSUtil/syscall.h" // For internal syscall function.
#include "src/__support/common.h"
#include "src/errno/libc_errno.h"
#include "src/signal/linux/signal_utils.h"
#include <sys/syscall.h> // For syscall numbers.
namespace LIBC_NAMESPACE {
LLVM_LIBC_FUNCTION(int, sigprocmask,
(int how, const sigset_t *__restrict set,
sigset_t *__restrict oldset)) {
int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_rt_sigprocmask, how, set,
oldset, sizeof(sigset_t));
if (!ret)
return 0;
libc_errno = -ret;
return -1;
}
} // namespace LIBC_NAMESPACE
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