nuttx/libs/libc/pthread/pthread_condtimedwait.c
chao.an 7ce2b3fa74 libc/pthread: Implement pthread_condattr_[g|s]etclock
Reference:
https: //pubs.opengroup.org/onlinepubs/009695399/functions/pthread_condattr_setclock.html

Change-Id: I19c15d5f219fcf28dbfeb2e5a1e3fc7b38ba2259
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-08-17 19:17:08 +01:00

58 lines
2.2 KiB
C

/****************************************************************************
* libs/libc/pthread/pthread_condtimedwait.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <pthread.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: pthread_cond_timedwait
*
* Description:
* A thread can perform a timed wait on a condition variable.
*
* Input Parameters:
* cond - the condition variable to wait on
* mutex - the mutex that protects the condition variable
* abstime - wait until this absolute time
*
* Returned Value:
* OK (0) on success; A non-zero errno value is returned on failure.
*
* Assumptions:
* Timing is of resolution 1 msec, with +/-1 millisecond accuracy.
*
****************************************************************************/
int pthread_cond_timedwait(FAR pthread_cond_t *cond,
FAR pthread_mutex_t *mutex,
FAR const struct timespec *abstime)
{
return pthread_cond_clockwait(cond, mutex, cond->clockid, abstime);
}