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