mirror of
https://github.com/ptitSeb/Serious-Engine
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40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
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/* Copyright (c) 2002-2012 Croteam Ltd. All rights reserved. */
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#ifndef SE_INCL_SYNCHRONIZATION_H
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#define SE_INCL_SYNCHRONIZATION_H
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#ifdef PRAGMA_ONCE
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#pragma once
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#endif
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// intra-process mutex (only used by thread of same process)
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// NOTE: mutex has no interface - it is locked using CTSingleLock
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class CTCriticalSection {
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public:
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void *cs_pvObject; // object is internal to implementation
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INDEX cs_iIndex; // index of mutex used to prevent deadlock with assertions
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// use numbers from 1 and above for deadlock control, or -1 for no deadlock control
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ENGINE_API CTCriticalSection(void);
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ENGINE_API ~CTCriticalSection(void);
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INDEX Lock(void);
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INDEX TryToLock(void);
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INDEX Unlock(void);
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};
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// lock object for locking a mutex with automatic unlocking
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class CTSingleLock {
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public:
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CTCriticalSection &sl_cs; // the mutex this object refers to
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BOOL sl_bLocked; // set while locked
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INDEX sl_iLastLockedIndex; // index of mutex that was locked before this lock
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ENGINE_API CTSingleLock(CTCriticalSection *pcs, BOOL bLock);
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ENGINE_API ~CTSingleLock(void);
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ENGINE_API void Lock(void);
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ENGINE_API BOOL TryToLock(void);
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ENGINE_API BOOL IsLocked(void);
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ENGINE_API void Unlock(void);
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};
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#endif /* include-once check. */
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