Linux组件封装(一) 互斥锁MutexLock

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

 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 :  NonCopyable
13 {
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

 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 }