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- /****************************************************************************
- * sched/signal/sig_pending.c
- *
- * Copyright (C) 2007-2009, 2013, 2016 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 <signal.h>
- #include <sched.h>
- #include <nuttx/irq.h>
- #include "sched/sched.h"
- #include "signal/signal.h"
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: sigpending
- *
- * Description:
- * This function returns the set of signals that are blocked from deliveryi
- * and that are pending for the calling process in the space pointed to by
- * set.
- *
- * Input Parameters:
- * set - The location to return the pending signal set.
- *
- * Returned Value:
- * 0 (OK) or -1 (ERROR)
- *
- * Assumptions:
- *
- ****************************************************************************/
- int sigpending(FAR sigset_t *set)
- {
- FAR struct tcb_s *rtcb = this_task();
- int ret = ERROR;
- if (set)
- {
- *set = nxsig_pendingset(rtcb);
- ret = OK;
- }
- return ret;
- }
- /****************************************************************************
- * Name: nxsig_pendingset
- *
- * Description:
- * Convert the list of pending signals into a signal set
- *
- ****************************************************************************/
- sigset_t nxsig_pendingset(FAR struct tcb_s *stcb)
- {
- FAR struct task_group_s *group = stcb->group;
- sigset_t sigpendset;
- FAR sigpendq_t *sigpend;
- irqstate_t flags;
- DEBUGASSERT(group);
- sigpendset = NULL_SIGNAL_SET;
- flags = enter_critical_section();
- for (sigpend = (FAR sigpendq_t *)group->tg_sigpendingq.head;
- (sigpend); sigpend = sigpend->flink)
- {
- sigaddset(&sigpendset, sigpend->info.si_signo);
- }
- leave_critical_section(flags);
- return sigpendset;
- }
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