124 lines
4.2 KiB
C
124 lines
4.2 KiB
C
/************************************************************************
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* sched/pthread_release.c
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*
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* Copyright (C) 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <sched.h>
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#include <debug.h>
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#include "os_internal.h"
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#include "pthread_internal.h"
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/************************************************************************
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* Definitions
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************************************************************************/
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/************************************************************************
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* Private Type Declarations
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************************************************************************/
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/************************************************************************
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* Global Variables
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************************************************************************/
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/************************************************************************
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* Private Variables
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************************************************************************/
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/************************************************************************
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* Private Functions
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************************************************************************/
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/************************************************************************
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* Public Functions
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************************************************************************/
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/************************************************************************
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* Name: pthread_release
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*
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* Description:
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* Release pthread resources from the task group with the group
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* terminated.
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*
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* Parameters:
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* group = The task group containing the pthread resources to be
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* released.
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*
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* Return Value:
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* None
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*
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* Assumptions:
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*
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* POSIX Compatibility:
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*
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************************************************************************/
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void pthread_release(FAR struct task_group_s *group)
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{
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FAR struct join_s *join;
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sdbg("group=0x%p\n", group);
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/* Visit and delete each join structure still in the list. Since we
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* are last exiting thread of the group, no special protection should
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* be required.
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*/
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while (group->tg_joinhead)
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{
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/* Remove the join from the head of the list. */
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join = group->tg_joinhead;
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group->tg_joinhead = join->next;
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/* Destroy the join semaphores */
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(void)sem_destroy(&join->data_sem);
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(void)sem_destroy(&join->exit_sem);
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/* And deallocate the join structure */
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sched_kfree(join);
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}
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/* Destroy the join list semaphore */
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(void)sem_destroy(&group->tg_joinsem);
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}
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