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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; version 2 of the License.
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 <NdbCondition.h>
#include <NdbThread.h>
#include <NdbMutex.h>
#include <NdbMem.h>
struct NdbCondition
{
pthread_cond_t cond;
};
struct NdbCondition*
NdbCondition_Create(void)
{
struct NdbCondition* tmpCond;
int result;
tmpCond = (struct NdbCondition*)NdbMem_Allocate(sizeof(struct NdbCondition));
if (tmpCond == NULL)
return NULL;
result = pthread_cond_init(&tmpCond->cond, NULL);
assert(result==0);
return tmpCond;
}
int
NdbCondition_Wait(struct NdbCondition* p_cond,
NdbMutex* p_mutex)
{
int result;
if (p_cond == NULL || p_mutex == NULL)
return 1;
result = pthread_cond_wait(&p_cond->cond, p_mutex);
return result;
}
int
NdbCondition_WaitTimeout(struct NdbCondition* p_cond,
NdbMutex* p_mutex,
int msecs){
int result;
struct timespec abstime;
int secs = 0;
if (p_cond == NULL || p_mutex == NULL)
return 1;
#ifdef HAVE_CLOCK_GETTIME
clock_gettime(CLOCK_REALTIME, &abstime);
#else
{
struct timeval tick_time;
gettimeofday(&tick_time, 0);
abstime.tv_sec = tick_time.tv_sec;
abstime.tv_nsec = tick_time.tv_usec * 1000;
}
#endif
if(msecs >= 1000){
secs = msecs / 1000;
msecs = msecs % 1000;
}
abstime.tv_sec += secs;
abstime.tv_nsec += msecs * 1000000;
if (abstime.tv_nsec >= 1000000000) {
abstime.tv_sec += 1;
abstime.tv_nsec -= 1000000000;
}
result = pthread_cond_timedwait(&p_cond->cond, p_mutex, &abstime);
return result;
}
int
NdbCondition_Signal(struct NdbCondition* p_cond){
int result;
if (p_cond == NULL)
return 1;
result = pthread_cond_signal(&p_cond->cond);
return result;
}
int NdbCondition_Broadcast(struct NdbCondition* p_cond)
{
int result;
if (p_cond == NULL)
return 1;
result = pthread_cond_broadcast(&p_cond->cond);
return result;
}
int NdbCondition_Destroy(struct NdbCondition* p_cond)
{
int result;
if (p_cond == NULL)
return 1;
result = pthread_cond_destroy(&p_cond->cond);
free(p_cond);
return 0;
}
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