pthread_mutex_t封装

//Mutex.cpp
#include < pthread.h >
#include < iostream >
using namespace std;

class ThreadMutex
{
public :
ThreadMutex()
{
pthread_mutex_init( & mtx, NULL);
}

~ ThreadMutex()
{
pthread_mutex_destroy( & mtx );
}

inline void Lock()
{
pthread_mutex_lock( & mtx );
}

inline void UnLock()
{
pthread_mutex_unlock( & mtx );
}

private :
pthread_mutex_t mtx;
};

//以下为测试用例
ThreadMutex g_Mutex;

void * PrintMsg( void * lpPara)
{
char * msg = ( char * )lpPara;

g_Mutex.Lock();

for ( int i = 0 ; i < 5 ; i ++ )
{
cout << msg << endl;
sleep( 1 );
}

g_Mutex.UnLock();

return NULL;
}

int main()
{
pthread_t t1,t2;

// 创建两个工作线程，第1个线程打印10个1，第2个线程打印10个2。
pthread_create( & t1, NULL, & PrintMsg, ( void * ) " First print thread " );
pthread_create( & t2, NULL, & PrintMsg, ( void * ) " Second print thread " );

// 等待线程结束
pthread_join( t1, NULL);
pthread_join( t2, NULL);

return 0 ;
}