libc/src/signal/linux/sigemptyset.cpp

   1 //===-- Linux implementation of sigemptyset -------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "src/signal/sigemptyset.h"
  10 #include "src/__support/macros/config.h"
  11 #include "src/errno/libc_errno.h"
  12 #include "src/signal/linux/signal_utils.h"
  13
  14 #include "src/__support/common.h"
  15
  16 #include <signal.h>
  17
  18 namespace LIBC_NAMESPACE_DECL {
  19
  20 LLVM_LIBC_FUNCTION(int, sigemptyset, (sigset_t * set)) {
  21   if (!set) {
  22     libc_errno = EINVAL;
  23     return -1;
  24   }
  25   *set = empty_set();
  26   return 0;
  27 }
  28
  29 } // namespace LIBC_NAMESPACE_DECL