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