73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/****************************************************************************
|
|
* sched/signal/sig_waitinfo.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 <errno.h>
|
|
|
|
#include <nuttx/cancelpt.h>
|
|
#include <nuttx/signal.h>
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: sigwaitinfo
|
|
*
|
|
* Description:
|
|
* This function is equivalent to sigtimedwait with a NULL timeout
|
|
* parameter.
|
|
*
|
|
* Input Parameters:
|
|
* set - The pending signal set
|
|
* info - The returned value
|
|
*
|
|
* Returned Value:
|
|
* Signal number that cause the wait to be terminated, otherwise -1 (ERROR)
|
|
* is returned and the errno variable is set appropriately.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int sigwaitinfo(FAR const sigset_t *set, FAR struct siginfo *info)
|
|
{
|
|
int ret;
|
|
|
|
/* sigwaitinfo() is a cancellation point */
|
|
|
|
enter_cancellation_point();
|
|
|
|
/* Just a wrapper around nxsig_timedwait() */
|
|
|
|
ret = nxsig_timedwait(set, info, NULL);
|
|
if (ret < 0)
|
|
{
|
|
set_errno(-ret);
|
|
ret = ERROR;
|
|
}
|
|
|
|
leave_cancellation_point();
|
|
return ret;
|
|
}
|