b5d4a01821
Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/****************************************************************************
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* libs/libc/pthread/pthread_conddestroy.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 <debug.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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/****************************************************************************
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* Name: pthread_cond_destroy
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*
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* Description:
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* A thread can delete condition variables.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* OK (0) on success; a (non-negated) errno value on failure. The errno
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* variable is not set. EBUSY is returned when the implementation has
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* detected an attempt to destroy the object referenced by cond while
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* it is referenced. EINVAL is returned when cond is invalid.
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*
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* Assumptions:
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*
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****************************************************************************/
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int pthread_cond_destroy(FAR pthread_cond_t *cond)
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{
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int ret = OK;
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int sval = 0;
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sinfo("cond=0x%p\n", cond);
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if (!cond)
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{
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ret = EINVAL;
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}
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/* Destroy the semaphore contained in the structure */
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else
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{
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ret = sem_getvalue(&cond->sem, &sval);
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if (ret < 0)
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{
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ret = -ret;
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}
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else
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{
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if (sval < 0)
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{
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ret = EBUSY;
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}
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else if (sem_destroy(&cond->sem) != OK)
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{
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ret = get_errno();
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}
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}
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}
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sinfo("Returning %d\n", ret);
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return ret;
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}
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