68 lines
1.3 KiB
C++
68 lines
1.3 KiB
C++
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#include<hgl/thread/ThreadMutex.h>
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#include<hgl/TypeFunc.h>
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#include<pthread.h>
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#include<sys/time.h>
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namespace hgl
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{
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void GetWaitTime(struct timespec &,double);
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ThreadMutex::ThreadMutex()
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{
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pthread_mutexattr_t attr;
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pthread_mutexattr_init(&attr);
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pthread_mutex_init(&ptr,&attr);
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pthread_mutexattr_destroy(&attr);
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}
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ThreadMutex::~ThreadMutex()
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{
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pthread_mutex_destroy(&ptr);
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}
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/**
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* 取得控制权
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* 如果对象处于排斥状态，则等待
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*/
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void ThreadMutex::Lock()
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{
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pthread_mutex_lock(&ptr);
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}
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/**
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* 尝试取得控制权
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* @return 是否成功取得控制权
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*/
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bool ThreadMutex::TryLock()
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{
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return(!pthread_mutex_trylock(&ptr));
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}
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#if !defined(__APPLE__)&&!defined(__ANDROID__)
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/**
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* 等待并取得控制权
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* @param time 等待的最大时间,时间为0表示尝试
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* @return 是否取得控制权
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*/
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bool ThreadMutex::WaitLock(double t)
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{
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struct timespec abstime;
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GetWaitTime(abstime,t);
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return !pthread_mutex_timedlock(&ptr, &abstime);
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}
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#endif//__APPLE__
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/**
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* 放弃控制权
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*/
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void ThreadMutex::Unlock()
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{
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pthread_mutex_unlock(&ptr);
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}
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}//namespace hgl
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