75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/****************************************************************************
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* sched/signal/sig_waitinfo.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <errno.h>
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#include <nuttx/cancelpt.h>
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#include <nuttx/signal.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sigwaitinfo
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*
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* Description:
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* This function is equivalent to sigtimedwait with a NULL timeout
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* parameter.
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*
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* Input Parameters:
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* set - The pending signal set
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* info - The returned value
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*
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* Returned Value:
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* Signal number that cause the wait to be terminated, otherwise -1 (ERROR)
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* is returned and the errno variable is set appropriately.
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*
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****************************************************************************/
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int sigwaitinfo(FAR const sigset_t *set, FAR struct siginfo *info)
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{
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int ret;
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/* sigwaitinfo() is a cancellation point */
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enter_cancellation_point();
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/* Just a wrapper around nxsig_timedwait() */
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ret = nxsig_timedwait(set, info, NULL);
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if (ret < 0)
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{
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set_errno(-ret);
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ret = ERROR;
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}
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leave_cancellation_point();
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return ret;
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}
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