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#ifndef MUTEXLOCK_H
#define MUTEXLOCK_H
#include <pthread.h>
/**
* @brief MutexLock 将 pthread_mutex 封装成一个类,
* 这样做的好处是不用记住那些繁杂的 pthread 开头的函数使用方式
*/
class MutexLock
{
private:
pthread_mutex_t mutex_;
public:
MutexLock() { pthread_mutex_init(&mutex_, nullptr); }
~MutexLock() { pthread_mutex_destroy(&mutex_); }
void lock() { pthread_mutex_lock(&mutex_); }
void unlock() { pthread_mutex_unlock(&mutex_); }
pthread_mutex_t* getMutex() { return &mutex_; };
};
/**
* @brief MutexLockGuard 主要是为了自动获取锁/释放锁, 防止意外情况下忘记释放锁
* 而且块状的锁定区域更容易让人理解代码
*/
class MutexLockGuard
{
private:
MutexLock& lock_;
public:
/**
* @brief 声明 MutexLockGuard 时自动上锁
* @param lock 待锁定的资源
*/
MutexLockGuard(MutexLock& mutex) : lock_(mutex) { lock_.lock(); }
/**
* @brief 当前作用域结束时自动释放锁, 防止遗忘
*/
~MutexLockGuard() { lock_.unlock(); }
};
#endif
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