81 lines
2.8 KiB
C
81 lines
2.8 KiB
C
/****************************************************************************
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* libs/libc/pthread/pthread_setcancelstate.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 <nuttx/config.h>
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#include <pthread.h>
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#include <sched.h>
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#include <errno.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/* These are defined in different header files but must have the same
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* values.
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*/
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#if PTHREAD_CANCEL_ENABLE != TASK_CANCEL_ENABLE
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# error We must have PTHREAD_CANCEL_ENABLE == TASK_CANCEL_ENABLE
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#endif
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#if PTHREAD_CANCEL_DISABLE != TASK_CANCEL_DISABLE
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# error We must have PTHREAD_CANCEL_DISABLE == TASK_CANCEL_DISABLE
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: pthread_setcancelstate
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*
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* Description:
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* The pthread_setcancelstate() function atomically both sets the calling
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* thread's cancelability state to the indicated state and returns the
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* previous cancelability state at the location referenced by oldstate.
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* Legal values for state are PTHREAD_CANCEL_ENABLE and
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* PTHREAD_CANCEL_DISABLE.
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*
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* The cancelability state and type of any newly created threads,
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* including the thread in which main() was first invoked, are
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* PTHREAD_CANCEL_ENABLE and PTHREAD_CANCEL_DEFERRED respectively.
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*
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****************************************************************************/
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int pthread_setcancelstate(int state, FAR int *oldstate)
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{
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int ret;
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/* task_setcancelstate() can do this */
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ret = task_setcancelstate(state, oldstate);
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if (ret < 0)
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{
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ret = get_errno();
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}
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return ret;
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}
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