forked from Mirrorlandia_minetest/minetest
84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
|
/*
|
||
|
|
|
||
|
|
This file is a part of the JThread package, which contains some object-
|
||
|
|
oriented thread wrappers for different thread implementations.
|
||
|
|
|
||
|
|
Copyright (c) 2000-2006 Jori Liesenborgs (jori.liesenborgs@gmail.com)
|
||
|
|
|
||
|
|
Permission is hereby granted, free of charge, to any person obtaining a
|
||
|
|
copy of this software and associated documentation files (the "Software"),
|
||
|
|
to deal in the Software without restriction, including without limitation
|
||
|
|
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
|
|
and/or sell copies of the Software, and to permit persons to whom the
|
||
|
|
Software is furnished to do so, subject to the following conditions:
|
||
|
|
|
||
|
|
The above copyright notice and this permission notice shall be included in
|
||
|
|
all copies or substantial portions of the Software.
|
||
|
|
|
||
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||
|
|
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||
|
|
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||
|
|
DEALINGS IN THE SOFTWARE.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "jmutex.h"
|
||
|
|
|
||
|
|
JMutex::JMutex()
|
||
|
|
{
|
||
|
|
initialized = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
JMutex::~JMutex()
|
||
|
|
{
|
||
|
|
if (initialized)
|
||
|
|
#ifdef JMUTEX_CRITICALSECTION
|
||
|
|
DeleteCriticalSection(&mutex);
|
||
|
|
#else
|
||
|
|
CloseHandle(mutex);
|
||
|
|
#endif // JMUTEX_CRITICALSECTION
|
||
|
|
}
|
||
|
|
|
||
|
|
int JMutex::Init()
|
||
|
|
{
|
||
|
|
if (initialized)
|
||
|
|
return ERR_JMUTEX_ALREADYINIT;
|
||
|
|
#ifdef JMUTEX_CRITICALSECTION
|
||
|
|
InitializeCriticalSection(&mutex);
|
||
|
|
#else
|
||
|
|
mutex = CreateMutex(NULL,FALSE,NULL);
|
||
|
|
if (mutex == NULL)
|
||
|
|
return ERR_JMUTEX_CANTCREATEMUTEX;
|
||
|
|
#endif // JMUTEX_CRITICALSECTION
|
||
|
|
initialized = true;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int JMutex::Lock()
|
||
|
|
{
|
||
|
|
if (!initialized)
|
||
|
|
return ERR_JMUTEX_NOTINIT;
|
||
|
|
#ifdef JMUTEX_CRITICALSECTION
|
||
|
|
EnterCriticalSection(&mutex);
|
||
|
|
#else
|
||
|
|
WaitForSingleObject(mutex,INFINITE);
|
||
|
|
#endif // JMUTEX_CRITICALSECTION
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int JMutex::Unlock()
|
||
|
|
{
|
||
|
|
if (!initialized)
|
||
|
|
return ERR_JMUTEX_NOTINIT;
|
||
|
|
#ifdef JMUTEX_CRITICALSECTION
|
||
|
|
LeaveCriticalSection(&mutex);
|
||
|
|
#else
|
||
|
|
ReleaseMutex(mutex);
|
||
|
|
#endif // JMUTEX_CRITICALSECTION
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|