You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
4.4 KiB
118 lines
4.4 KiB
/************************************************************************ |
|
* sched/sig_cleanup.c |
|
* |
|
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved. |
|
* Author: Gregory Nutt <gnutt@nuttx.org> |
|
* |
|
* 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 NuttX 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 <nuttx/config.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 |
|
************************************************************************/ |
|
|
|
/************************************************************************ |
|
* Name: 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(FAR _TCB *stcb) |
|
{ |
|
FAR sigactq_t *sigact; |
|
FAR sigq_t *sigq; |
|
FAR sigpendq_t *sigpend; |
|
|
|
/* Deallocate all entries in the list of signal actions */ |
|
|
|
while ((sigact = (FAR sigactq_t*)sq_remfirst(&stcb->sigactionq)) != NULL) |
|
{ |
|
sig_releaseaction(sigact); |
|
} |
|
|
|
/* Deallocate all entries in the list of pending signals */ |
|
|
|
while ((sigpend = (FAR sigpendq_t*)sq_remfirst(&stcb->sigpendingq)) != NULL) |
|
{ |
|
sig_releasependingsignal(sigpend); |
|
} |
|
|
|
/* Deallocate all entries in the list of pending signal actions */ |
|
|
|
while ((sigq = (FAR sigq_t*)sq_remfirst(&stcb->sigpendactionq)) != NULL) |
|
{ |
|
sig_releasependingsigaction(sigq); |
|
} |
|
|
|
/* Deallocate all entries in the list of posted signal actions */ |
|
|
|
while ((sigq = (FAR 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; |
|
}
|
|
|