102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/****************************************************************************
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* sched/signal/sig_cleanup.c
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*
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* SPDX-License-Identifier: Apache-2.0
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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 <nuttx/arch.h>
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#include "signal/signal.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxsig_cleanup
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*
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* Description:
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* Deallocate all signal-related lists in a TCB. This function is
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* called only at task deletion time. The caller is expected to have
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* assured the critical section necessary to perform this action.
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*
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****************************************************************************/
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void nxsig_cleanup(FAR struct tcb_s *stcb)
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{
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FAR sigq_t *sigq;
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/* Deallocate all entries in the list of pending signal actions */
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while ((sigq = (FAR sigq_t *)sq_remfirst(&stcb->sigpendactionq)) != NULL)
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{
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nxsig_release_pendingsigaction(sigq);
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}
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/* Deallocate all entries in the list of posted signal actions */
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while ((sigq = (FAR sigq_t *)sq_remfirst(&stcb->sigpostedq)) != NULL)
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{
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nxsig_release_pendingsigaction(sigq);
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}
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/* Misc. signal-related clean-up */
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sigfillset(&stcb->sigprocmask);
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sigemptyset(&stcb->sigwaitmask);
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}
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/****************************************************************************
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* Name: nxsig_release
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*
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* Description:
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* Deallocate all signal-related lists in a group. This function is
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* called only when the last thread leaves the group. The caller is
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* expected to have assured the critical section necessary to perform
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* this action.
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*
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****************************************************************************/
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void nxsig_release(FAR struct task_group_s *group)
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{
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FAR sigactq_t *sigact;
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FAR sigpendq_t *sigpend;
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/* Deallocate all entries in the list of signal actions */
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while ((sigact = (FAR sigactq_t *)sq_remfirst(&group->tg_sigactionq))
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!= NULL)
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{
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nxsig_release_action(sigact);
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}
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/* Deallocate all entries in the list of pending signals */
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while ((sigpend = (FAR sigpendq_t *)sq_remfirst(&group->tg_sigpendingq))
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!= NULL)
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{
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nxsig_release_pendingsignal(sigpend);
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}
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}
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