87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/****************************************************************************
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* sched/signal/sig_removependingsignal.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 <unistd.h>
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#include <signal.h>
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#include <time.h>
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#include <assert.h>
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#include <debug.h>
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#include <sched.h>
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#include <nuttx/irq.h>
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#include <nuttx/arch.h>
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#include <nuttx/wdog.h>
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#include <nuttx/kmalloc.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_remove_pendingsignal
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*
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* Description:
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* Remove the specified signal from the signal pending list
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*
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****************************************************************************/
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FAR sigpendq_t *nxsig_remove_pendingsignal(FAR struct tcb_s *stcb, int signo)
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{
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FAR struct task_group_s *group = stcb->group;
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FAR sigpendq_t *currsig;
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FAR sigpendq_t *prevsig;
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irqstate_t flags;
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DEBUGASSERT(group);
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flags = enter_critical_section();
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for (prevsig = NULL,
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currsig = (FAR sigpendq_t *)group->tg_sigpendingq.head;
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(currsig && currsig->info.si_signo != signo);
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prevsig = currsig, currsig = currsig->flink);
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if (currsig)
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{
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if (prevsig)
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{
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sq_remafter((FAR sq_entry_t *)prevsig, &group->tg_sigpendingq);
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}
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else
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{
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sq_remfirst(&group->tg_sigpendingq);
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}
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}
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leave_critical_section(flags);
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return currsig;
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}
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