linux下如何设置线程名

Question

我有这样的一个子线程执行，我想给他一个名字，到时候方便查看线程ID对应的线程名，这样我就知道这个线程是干什么的了
环境Linux

void MongoDBManager::ClientThread(const string& uri)
{
    m_mongodb_writer = mp_create_mongo_proxy(); 
    if (!m_mongodb_writer->mongodb_init(uri.c_str(), MONGO_POOL_SIZE)) {
        LOG(ERROR)("create mongo writer thread failed");
        return;
    }

    while (true) {
        if (m_stop == true && m_queue.size_approx() == 0) {
            break;
        }
        mongo_task* task;
        if (m_queue.size_approx() == 0) {
            Sleep(10);
            continue;
        }
        if (m_queue.wait_dequeue_timed(task, std::chrono::milliseconds(1000)) == false)
        {
            LOG(ERROR)("mongo write queue get task timeout, size(%d) ", m_queue.size_approx());
            continue;
        }
        task->handle(m_mongodb_writer); 
        delete task;
        task = NULL;
        Sleep(1);
    } 
    if (m_mongodb_writer == nullptr) { return; }
    m_mongodb_writer->mongodb_stop(); 
    mp_delete_mongo_proxy(m_mongodb_writer); 
    LOG(INFO)("mongodb client release writer");
    return;
}

Answer 1

加个头文件：

#ifndef  WIN32
#include <sys/prctl.h>
#endif // ! WIN32

然后在你的线程入口处加上

#ifndef WIN32
    prctl(PR_SET_NAME, "Mongo Write Thread", NULL, NULL, NULL);
#endif