libc/src/signal/linux/sigaddset.cpp

   1 //===-- Linux implementation of sigaddset ---------------------------------===//
   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/sigaddset.h"
  10
  11 #include "hdr/types/sigset_t.h"
  12 #include "src/__support/common.h"
  13 #include "src/__support/macros/config.h"
  14 #include "src/errno/libc_errno.h"
  15 #include "src/signal/linux/signal_utils.h"
  16
  17 namespace LIBC_NAMESPACE_DECL {
  18
  19 LLVM_LIBC_FUNCTION(int, sigaddset, (sigset_t * set, int signum)) {
  20   if (set != nullptr && add_signal(*set, signum))
  21     return 0;
  22   libc_errno = EINVAL;
  23   return -1;
  24 }
  25
  26 } // namespace LIBC_NAMESPACE_DECL