hadoop-hdfs-project/hadoop-hdfs/src/contrib/libhdfs3/os/posix/Thread.cc

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

#include "Thread.h"

#include <pthread.h>
#include <signal.h>
#include <unistd.h>

namespace hdfs {
namespace internal {

sigset_t ThreadBlockSignal() {
    sigset_t sigs;
    sigset_t oldMask;
    sigemptyset(&sigs);
    sigaddset(&sigs, SIGHUP);
    sigaddset(&sigs, SIGINT);
    sigaddset(&sigs, SIGTERM);
    sigaddset(&sigs, SIGUSR1);
    sigaddset(&sigs, SIGUSR2);
    sigaddset(&sigs, SIGPIPE);
    pthread_sigmask(SIG_BLOCK, &sigs, &oldMask);
    return oldMask;
}

void ThreadUnBlockSignal(sigset_t sigs) {
    pthread_sigmask(SIG_SETMASK, &sigs, 0);
}

}
}