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// bthread - A M:N threading library to make applications more concurrent.
// Copyright (c) 2012 Baidu, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Author: Ge,Jun (gejun@baidu.com)
// Date: Tue Jul 10 17:40:58 CST 2012
#include <signal.h>
#include "bthread/interrupt_pthread.h"
namespace bthread {
// TODO: Make sure SIGURG is not used by user.
// This empty handler is simply for triggering EINTR in blocking syscalls.
void do_nothing_handler(int) {}
static pthread_once_t register_sigurg_once = PTHREAD_ONCE_INIT;
static void register_sigurg() {
signal(SIGURG, do_nothing_handler);
}
int interrupt_pthread(pthread_t th) {
pthread_once(®ister_sigurg_once, register_sigurg);
return pthread_kill(th, SIGURG);
}
} // namespace bthread