119 lines
4.1 KiB
C
119 lines
4.1 KiB
C
/************************************************************************
|
|
* sched/sig_removependingsignal.c
|
|
*
|
|
* Copyright (C) 2007, 2009, 2013 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Included Files
|
|
************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <unistd.h>
|
|
#include <signal.h>
|
|
#include <time.h>
|
|
#include <wdog.h>
|
|
#include <assert.h>
|
|
#include <debug.h>
|
|
#include <sched.h>
|
|
|
|
#include <nuttx/kmalloc.h>
|
|
#include <nuttx/arch.h>
|
|
|
|
#include "os_internal.h"
|
|
#include "sig_internal.h"
|
|
|
|
/************************************************************************
|
|
* Definitions
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Private Type Declarations
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Global Variables
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Private Variables
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Private Functions
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Public Functions
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Name: sig_removependingsignal
|
|
*
|
|
* Description:
|
|
* Remove the specified signal from the signal pending list
|
|
*
|
|
************************************************************************/
|
|
|
|
FAR sigpendq_t *sig_removependingsignal(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 saved_state;
|
|
|
|
DEBUGASSERT(group);
|
|
|
|
saved_state = irqsave();
|
|
|
|
for (prevsig = NULL, currsig = (FAR sigpendq_t*)group->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->sigpendingq);
|
|
}
|
|
else
|
|
{
|
|
sq_remfirst(&group->sigpendingq);
|
|
}
|
|
}
|
|
|
|
irqrestore(saved_state);
|
|
|
|
return currsig;
|
|
}
|