58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/****************************************************************************
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* libs/libc/signal/sig_relse.c
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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 <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: sigrelse
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*
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* Description:
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* The sigrelse() function will remove 'signo' from the calling process'
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* signal mask.
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*
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****************************************************************************/
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int sigrelse(int signo)
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{
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sigset_t set;
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int ret;
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/* Create a set of signals with only the signal to be unblocked */
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sigemptyset(&set);
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ret = sigaddset(&set, signo);
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if (ret == OK)
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{
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/* Unblock the signal */
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ret = sigprocmask(SIG_UNBLOCK, &set, NULL);
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}
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return ret;
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}
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