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Linux组件封装(一) 互斥锁MutexLock

由于pthread系列的函数都是成功时返回0,我们需要一段判断处理错误的代码:

#define TINY_CHECK(exp)        if(!exp)        {                fprintf(stderr, "File : %s, Line : %d Exp : ["#exp"] is true, abort.\n", __FILE__, __LINE__); abort();        }

 

MutexLock的封装如下:

 1 #ifndef MUTEXLOCK_H 2 #define MUTEXLOCK_H 3  4 #include "NonCopyable.h" 5 #include <pthread.h> 6 #define TINY_CHECK(exp) 7         if(!exp) 8         {     9             fprintf(stderr, "File : %s, Line : %d Exp : ["#exp"] is true, abort.\n", __FILE__, __LINE__); abort();10         }11 12 class MutexLock :  NonCopyable13 {14 public:15     MutexLock();16     ~MutexLock();17     void lock();18     void unlock();19 20     bool isLocked() const { return _isLock; }21     pthread_mutex_t *getMutexPtr() { return &_mutex; }22 private:23     pthread_mutex_t _mutex;24     bool _isLock;25 };26 27 #endif

cpp文件如下:

 1 #include "MutexLock.h" 2 #include <assert.h> 3  4 MutexLock::MutexLock() 5     :_isLock(false) 6 { 7     TINY_CHECK(!pthread_mutex_init(&_mutex, NULL)); 8 } 9 10 MutexLock::~MutexLock()11 {12     assert(!isLocked());13     TINY_CHECK(!pthread_mutex_destroy(&_mutex));14 }15 16 void MutexLock::lock()17 {18     TINY_CHECK(!pthread_mutex_lock(&_mutex));19     _isLock = true;20 }21 22 void MutexLock::unlock()23 {24     _isLock = false;25     TINY_CHECK(!pthread_mutex_unlock(&_mutex));26 }

 

Linux组件封装(一) 互斥锁MutexLock