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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 <NdbThread.h>
#include <NdbMutex.h>
#include <NdbMem.h>
NdbMutex* NdbMutex_Create(void)
{
NdbMutex* pNdbMutex;
int result;
DBUG_ENTER("NdbMutex_Create");
pNdbMutex = (NdbMutex*)NdbMem_Allocate(sizeof(NdbMutex));
DBUG_PRINT("info",("NdbMem_Allocate 0x%lx", (long) pNdbMutex));
if (pNdbMutex == NULL)
DBUG_RETURN(NULL);
result = pthread_mutex_init(pNdbMutex, NULL);
assert(result == 0);
DBUG_RETURN(pNdbMutex);
}
int NdbMutex_Destroy(NdbMutex* p_mutex)
{
int result;
DBUG_ENTER("NdbMutex_Destroy");
if (p_mutex == NULL)
DBUG_RETURN(-1);
result = pthread_mutex_destroy(p_mutex);
DBUG_PRINT("info",("NdbMem_Free 0x%lx", (long) p_mutex));
NdbMem_Free(p_mutex);
DBUG_RETURN(result);
}
int NdbMutex_Lock(NdbMutex* p_mutex)
{
int result;
if (p_mutex == NULL)
return -1;
result = pthread_mutex_lock(p_mutex);
return result;
}
int NdbMutex_Unlock(NdbMutex* p_mutex)
{
int result;
if (p_mutex == NULL)
return -1;
result = pthread_mutex_unlock(p_mutex);
return result;
}
int NdbMutex_Trylock(NdbMutex* p_mutex)
{
int result = -1;
if (p_mutex != NULL) {
result = pthread_mutex_trylock(p_mutex);
}
return result;
}
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