b08a86171f
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3 42af7a65-404d-4744-a932-0658087f49c3
118 lines
4.1 KiB
C
118 lines
4.1 KiB
C
/************************************************************
|
|
* sig_cleanup.c
|
|
*
|
|
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name Gregory Nutt nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Included Files
|
|
************************************************************/
|
|
|
|
#include <sys/types.h>
|
|
#include <nuttx/arch.h>
|
|
#include "os_internal.h"
|
|
#include "sig_internal.h"
|
|
|
|
/************************************************************
|
|
* Definitions
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Private Type Declarations
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Global Variables
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Private Variables
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Private Functions
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Public Functions
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Function: sig_cleanup
|
|
*
|
|
* Description:
|
|
* Deallocate all signal-related lists in a TCB. This function
|
|
* is called only at task deletion time. The caller is
|
|
* expected to have assured the critical section necessary
|
|
* to perform this action.
|
|
************************************************************/
|
|
|
|
void sig_cleanup(_TCB *stcb)
|
|
{
|
|
sigactq_t *sigact;
|
|
sigq_t *sigq;
|
|
sigpendq_t *sigpend;
|
|
|
|
/* Deallocate all entries in the list of signal actions */
|
|
|
|
while ((sigact = (sigactq_t*)sq_remfirst(&stcb->sigactionq)) != NULL)
|
|
{
|
|
sig_releaseaction(sigact);
|
|
}
|
|
|
|
/* Deallocate all entries in the list of pending signals */
|
|
|
|
while ((sigpend = (sigpendq_t*)sq_remfirst(&stcb->sigpendingq)) != NULL)
|
|
{
|
|
sig_releasependingsignal(sigpend);
|
|
}
|
|
|
|
/* Deallocate all entries in the list of pending signal actions */
|
|
|
|
while ((sigq = (sigq_t*)sq_remfirst(&stcb->sigpendactionq)) != NULL)
|
|
{
|
|
sig_releasependingsigaction(sigq);
|
|
}
|
|
|
|
/* Deallocate all entries in the list of posted signal actions */
|
|
|
|
while ((sigq = (sigq_t*)sq_remfirst(&stcb->sigpostedq)) != NULL)
|
|
{
|
|
sig_releasependingsigaction(sigq);
|
|
}
|
|
|
|
/* Misc. signal-related clean-up */
|
|
|
|
stcb->sigprocmask = ALL_SIGNAL_SET;
|
|
stcb->sigwaitmask = NULL_SIGNAL_SET;
|
|
}
|