69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
/****************************************************************************
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* libs/libc/semaphore/sem_unlink.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 <errno.h>
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#include <nuttx/semaphore.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sem_unlink
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*
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* Description:
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* This function removes the semaphore named by the input parameter 'name.'
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* If the semaphore named by 'name' is currently referenced by other task,
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* the sem_unlink() will have no effect on the state of the semaphore. If
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* one or more processes have the semaphore open when sem_unlink() is
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* called, destruction of the semaphore will be postponed until all
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* references to the semaphore have been destroyed by calls of sem_close().
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*
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* Input Parameters:
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* name - Semaphore name
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*
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* Returned Value:
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* 0 (OK), or -1 (ERROR) if unsuccessful.
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*
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* Assumptions:
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*
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****************************************************************************/
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int sem_unlink(FAR const char *name)
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{
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int ret;
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ret = nxsem_unlink(name);
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if (ret < 0)
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{
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set_errno(-ret);
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return ERROR;
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}
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return ret;
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}
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