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61 lines
1.3 KiB
61 lines
1.3 KiB
6 years ago
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#pragma once
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/**
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@file
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@brief critical section
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@author MITSUNARI Shigeo(@herumi)
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@author MITSUNARI Shigeo
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*/
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#include <cybozu/mutex.hpp>
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namespace cybozu {
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class ConditionVariableCs;
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namespace thread {
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#ifdef _WIN32
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typedef CRITICAL_SECTION CsHandle;
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inline void CsInit(CsHandle& cs) { InitializeCriticalSection(&cs); }
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inline void CsLock(CsHandle& cs) { EnterCriticalSection(&cs); }
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inline void CsUnlock(CsHandle& cs) { LeaveCriticalSection(&cs); }
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inline void CsTerm(CsHandle& cs) { DeleteCriticalSection(&cs); }
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#else
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typedef pthread_mutex_t CsHandle;
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inline void CsInit(CsHandle& cs) { pthread_mutex_init(&cs, NULL); }
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inline void CsLock(CsHandle& cs) { pthread_mutex_lock(&cs); }
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inline void CsUnlock(CsHandle& cs) { pthread_mutex_unlock(&cs); }
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inline void CsTerm(CsHandle& cs) { pthread_mutex_destroy(&cs); }
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#endif
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} // cybozu::thread
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class CriticalSection {
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friend class cybozu::ConditionVariableCs;
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public:
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CriticalSection()
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{
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thread::CsInit(hdl_);
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}
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~CriticalSection()
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{
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thread::CsTerm(hdl_);
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}
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inline void lock()
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{
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thread::CsLock(hdl_);
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}
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inline void unlock()
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{
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thread::CsUnlock(hdl_);
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}
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private:
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CriticalSection(const CriticalSection&);
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CriticalSection& operator=(const CriticalSection&);
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thread::CsHandle hdl_;
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};
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typedef cybozu::thread::AutoLockT<cybozu::CriticalSection> AutoLockCs; //!< auto lock critical section
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} // cybozu
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