您最多选择25个主题
主题必须以字母或数字开头，可以包含连字符 (-)，并且长度不得超过35个字符
53 行
1.4 KiB
53 行
1.4 KiB
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
|
|
#include "port/port_posix.h"
|
|
|
|
#include <cstdlib>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
namespace leveldb {
|
|
namespace port {
|
|
|
|
static void PthreadCall(const char* label, int result) {
|
|
if (result != 0) {
|
|
fprintf(stderr, "pthread %s: %s\n", label, strerror(result));
|
|
abort();
|
|
}
|
|
}
|
|
|
|
Mutex::Mutex() { PthreadCall("init mutex", pthread_mutex_init(&mu_, nullptr)); }
|
|
|
|
Mutex::~Mutex() { PthreadCall("destroy mutex", pthread_mutex_destroy(&mu_)); }
|
|
|
|
void Mutex::Lock() { PthreadCall("lock", pthread_mutex_lock(&mu_)); }
|
|
|
|
void Mutex::Unlock() { PthreadCall("unlock", pthread_mutex_unlock(&mu_)); }
|
|
|
|
CondVar::CondVar(Mutex* mu)
|
|
: mu_(mu) {
|
|
PthreadCall("init cv", pthread_cond_init(&cv_, nullptr));
|
|
}
|
|
|
|
CondVar::~CondVar() { PthreadCall("destroy cv", pthread_cond_destroy(&cv_)); }
|
|
|
|
void CondVar::Wait() {
|
|
PthreadCall("wait", pthread_cond_wait(&cv_, &mu_->mu_));
|
|
}
|
|
|
|
void CondVar::Signal() {
|
|
PthreadCall("signal", pthread_cond_signal(&cv_));
|
|
}
|
|
|
|
void CondVar::SignalAll() {
|
|
PthreadCall("broadcast", pthread_cond_broadcast(&cv_));
|
|
}
|
|
|
|
void InitOnce(OnceType* once, void (*initializer)()) {
|
|
PthreadCall("once", pthread_once(once, initializer));
|
|
}
|
|
|
|
} // namespace port
|
|
} // namespace leveldb
|