91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
/****************************************************************************
|
|
* sched/signal/sig_releasependingsigaction.c
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* 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 <sched.h>
|
|
|
|
#include <nuttx/irq.h>
|
|
|
|
#include "signal/signal.h"
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxsig_release_pendingsigaction
|
|
*
|
|
* Description:
|
|
* Deallocate a pending signal action Q entry
|
|
*
|
|
****************************************************************************/
|
|
|
|
void nxsig_release_pendingsigaction(FAR sigq_t *sigq)
|
|
{
|
|
irqstate_t flags;
|
|
|
|
/* If this is a generally available pre-allocated structure,
|
|
* then just put it back in the free list.
|
|
*/
|
|
|
|
if (sigq->type == SIG_ALLOC_FIXED)
|
|
{
|
|
/* Make sure we avoid concurrent access to the free
|
|
* list from interrupt handlers.
|
|
*/
|
|
|
|
flags = enter_critical_section();
|
|
sq_addlast((FAR sq_entry_t *)sigq, &g_sigpendingaction);
|
|
leave_critical_section(flags);
|
|
}
|
|
|
|
/* If this is a message pre-allocated for interrupts,
|
|
* then put it back in the correct free list.
|
|
*/
|
|
|
|
else if (sigq->type == SIG_ALLOC_IRQ)
|
|
{
|
|
/* Make sure we avoid concurrent access to the free
|
|
* list from interrupt handlers.
|
|
*/
|
|
|
|
flags = enter_critical_section();
|
|
sq_addlast((FAR sq_entry_t *)sigq, &g_sigpendingirqaction);
|
|
leave_critical_section(flags);
|
|
}
|
|
|
|
/* Otherwise, deallocate it. Note: interrupt handlers
|
|
* will never deallocate signals because they will not
|
|
* receive them.
|
|
*/
|
|
|
|
else if (sigq->type == SIG_ALLOC_DYN)
|
|
{
|
|
kmm_free(sigq);
|
|
}
|
|
}
|