mirror of
https://github.com/ptitSeb/Serious-Engine
synced 2024-11-22 18:30:27 +01:00
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
/* Copyright (c) 2002-2012 Croteam Ltd.
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of version 2 of the GNU General Public License as published by
|
|
the Free Software Foundation
|
|
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
|
|
|
|
#ifndef SE_INCL_SYNCHRONIZATION_H
|
|
#define SE_INCL_SYNCHRONIZATION_H
|
|
#ifdef PRAGMA_ONCE
|
|
#pragma once
|
|
#endif
|
|
|
|
// intra-process mutex (only used by thread of same process)
|
|
// NOTE: mutex has no interface - it is locked using CTSingleLock
|
|
class CTCriticalSection {
|
|
public:
|
|
void *cs_pvObject; // object is internal to implementation
|
|
INDEX cs_iIndex; // index of mutex used to prevent deadlock with assertions
|
|
// use numbers from 1 and above for deadlock control, or -1 for no deadlock control
|
|
ENGINE_API CTCriticalSection(void);
|
|
ENGINE_API ~CTCriticalSection(void);
|
|
INDEX Lock(void);
|
|
INDEX TryToLock(void);
|
|
INDEX Unlock(void);
|
|
};
|
|
|
|
// lock object for locking a mutex with automatic unlocking
|
|
class CTSingleLock {
|
|
public:
|
|
CTCriticalSection &sl_cs; // the mutex this object refers to
|
|
BOOL sl_bLocked; // set while locked
|
|
INDEX sl_iLastLockedIndex; // index of mutex that was locked before this lock
|
|
ENGINE_API CTSingleLock(CTCriticalSection *pcs, BOOL bLock);
|
|
ENGINE_API ~CTSingleLock(void);
|
|
ENGINE_API void Lock(void);
|
|
ENGINE_API BOOL TryToLock(void);
|
|
ENGINE_API BOOL IsLocked(void);
|
|
ENGINE_API void Unlock(void);
|
|
};
|
|
|
|
|
|
#endif /* include-once check. */
|
|
|