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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <ndb_global.h>
#include "NdbMutex.h"
NdbMutex* NdbMutex_Create(void)
{
NdbMutex* pNdbMutex = (NdbMutex*)malloc(sizeof(NdbMutex));
if(!pNdbMutex)
return 0;
InitializeCriticalSection(pNdbMutex);
return pNdbMutex;
}
int NdbMutex_Destroy(NdbMutex* p_mutex)
{
if(!p_mutex)
return -1;
DeleteCriticalSection(p_mutex);
free(p_mutex);
return 0;
}
int NdbMutex_Lock(NdbMutex* p_mutex)
{
if(!p_mutex)
return -1;
EnterCriticalSection (p_mutex);
return 0;
}
int NdbMutex_Unlock(NdbMutex* p_mutex)
{
if(!p_mutex)
return -1;
LeaveCriticalSection(p_mutex);
return 0;
}
int NdbMutex_Trylock(NdbMutex* p_mutex)
{
int result = -1;
if(p_mutex)
{
result = NdbMutex_Lock(p_mutex);
//(TryEnterCriticalSection(p_mutex) ? 0 : -1);
}
return result;
}
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