nuttx/sched/signal/sig_removependingsignal.c
Alin Jerpelea 8935ac4cc3 sched: Author Gregory Nutt: update licenses to Apache
Gregory Nutt has submitted the SGA and we can mograte the licenses
to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-02-09 01:21:53 -08:00

85 lines
2.6 KiB
C

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