100 lines
3.3 KiB
C
100 lines
3.3 KiB
C
/****************************************************************************
|
|
* sched/signal/sig_cleanup.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <nuttx/arch.h>
|
|
|
|
#include "signal/signal.h"
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxsig_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 nxsig_cleanup(FAR struct tcb_s *stcb)
|
|
{
|
|
FAR sigq_t *sigq;
|
|
|
|
/* Deallocate all entries in the list of pending signal actions */
|
|
|
|
while ((sigq = (FAR sigq_t *)sq_remfirst(&stcb->sigpendactionq)) != NULL)
|
|
{
|
|
nxsig_release_pendingsigaction(sigq);
|
|
}
|
|
|
|
/* Deallocate all entries in the list of posted signal actions */
|
|
|
|
while ((sigq = (FAR sigq_t *)sq_remfirst(&stcb->sigpostedq)) != NULL)
|
|
{
|
|
nxsig_release_pendingsigaction(sigq);
|
|
}
|
|
|
|
/* Misc. signal-related clean-up */
|
|
|
|
sigfillset(&stcb->sigprocmask);
|
|
sigemptyset(&stcb->sigwaitmask);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: nxsig_release
|
|
*
|
|
* Description:
|
|
* Deallocate all signal-related lists in a group. This function is
|
|
* called only when the last thread leaves the group. The caller is
|
|
* expected to have assured the critical section necessary to perform
|
|
* this action.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void nxsig_release(FAR struct task_group_s *group)
|
|
{
|
|
FAR sigactq_t *sigact;
|
|
FAR sigpendq_t *sigpend;
|
|
|
|
/* Deallocate all entries in the list of signal actions */
|
|
|
|
while ((sigact = (FAR sigactq_t *)sq_remfirst(&group->tg_sigactionq))
|
|
!= NULL)
|
|
{
|
|
nxsig_release_action(sigact);
|
|
}
|
|
|
|
/* Deallocate all entries in the list of pending signals */
|
|
|
|
while ((sigpend = (FAR sigpendq_t *)sq_remfirst(&group->tg_sigpendingq))
|
|
!= NULL)
|
|
{
|
|
nxsig_release_pendingsignal(sigpend);
|
|
}
|
|
}
|