40f92a9da4
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@595 42af7a65-404d-4744-a932-0658087f49c3
128 lines
4.5 KiB
C
128 lines
4.5 KiB
C
/****************************************************************************
|
|
* sched/sig_pending.c
|
|
*
|
|
* Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* 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 <sys/types.h>
|
|
#include <signal.h>
|
|
#include <sched.h>
|
|
#include "os_internal.h"
|
|
#include "sig_internal.h"
|
|
|
|
/****************************************************************************
|
|
* Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Type Declarations
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Global Variables
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Variables
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Function: sigpending
|
|
*
|
|
* Description:
|
|
* This function stores the returns the set of signals that are blocked
|
|
* for delivery and that are pending for the calling process in the space
|
|
* pointed to by set.
|
|
*
|
|
* Parameters:
|
|
* set - The location to return the pending signal set.
|
|
*
|
|
* Return Value:
|
|
* 0 (OK) or -1 (ERROR)
|
|
*
|
|
* Assumptions:
|
|
*
|
|
****************************************************************************/
|
|
|
|
int sigpending(FAR sigset_t *set)
|
|
{
|
|
FAR _TCB *rtcb = (FAR _TCB*)g_readytorun.head;
|
|
int ret = ERROR;
|
|
|
|
if (set)
|
|
{
|
|
*set = sig_pendingset(rtcb);
|
|
ret = OK;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Function: sig_pendingset
|
|
*
|
|
* Description:
|
|
* Convert the list of pending signals into a signal set
|
|
*
|
|
****************************************************************************/
|
|
|
|
sigset_t sig_pendingset(FAR _TCB *stcb)
|
|
{
|
|
sigset_t sigpendset;
|
|
FAR sigpendq_t *sigpend;
|
|
irqstate_t saved_state;
|
|
|
|
sigpendset = NULL_SIGNAL_SET;
|
|
|
|
saved_state = irqsave();
|
|
for (sigpend = (FAR sigpendq_t*)stcb->sigpendingq.head;
|
|
(sigpend); sigpend = sigpend->flink)
|
|
{
|
|
sigaddset(&sigpendset, sigpend->info.si_signo);
|
|
}
|
|
irqrestore(saved_state);
|
|
|
|
return sigpendset;
|
|
}
|