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/*
* The MIT License
*
* Copyright (C) 2010-2016 Alexander Saprykin <saprykin.spb@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 "pmem.h"
#include "pcondvariable.h"
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <pthread.h>
struct PCondVariable_ {
pthread_cond_t hdl;
};
P_LIB_API PCondVariable *
p_cond_variable_new (void)
{
PCondVariable *ret;
if (P_UNLIKELY ((ret = p_malloc0 (sizeof (PCondVariable))) == NULL)) {
P_ERROR ("PCondVariable::p_cond_variable_new: failed to allocate memory");
return NULL;
}
if (P_UNLIKELY (pthread_cond_init (&ret->hdl, NULL) != 0)) {
P_ERROR ("PCondVariable::p_cond_variable_new: failed to initialize");
p_free (ret);
return NULL;
}
return ret;
}
P_LIB_API void
p_cond_variable_free (PCondVariable *cond)
{
if (P_UNLIKELY (cond == NULL))
return;
if (P_UNLIKELY (pthread_cond_destroy (&cond->hdl) != 0))
P_WARNING ("PCondVariable::p_cond_variable_free: pthread_cond_destroy() failed");
p_free (cond);
}
P_LIB_API pboolean
p_cond_variable_wait (PCondVariable *cond,
PMutex *mutex)
{
if (P_UNLIKELY (cond == NULL || mutex == NULL))
return FALSE;
/* Cast is eligible since there is only one field in the PMutex structure */
if (P_UNLIKELY (pthread_cond_wait (&cond->hdl, (pthread_mutex_t *) mutex) != 0)) {
P_ERROR ("PCondVariable::p_cond_variable_wait: pthread_cond_wait() failed");
return FALSE;
}
return TRUE;
}
P_LIB_API pboolean
p_cond_variable_signal (PCondVariable *cond)
{
if (P_UNLIKELY (cond == NULL))
return FALSE;
if (P_UNLIKELY (pthread_cond_signal (&cond->hdl) != 0)) {
P_ERROR ("PCondVariable::p_cond_variable_signal: pthread_cond_signal() failed");
return FALSE;
}
return TRUE;
}
P_LIB_API pboolean
p_cond_variable_broadcast (PCondVariable *cond)
{
if (P_UNLIKELY (cond == NULL))
return FALSE;
if (P_UNLIKELY (pthread_cond_broadcast (&cond->hdl) != 0)) {
P_ERROR ("PCondVariable::p_cond_variable_broadcast: thread_cond_broadcast() failed");
return FALSE;
}
return TRUE;
}
void
p_cond_variable_init (void)
{
}
void
p_cond_variable_shutdown (void)
{
}
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