8198ba6a6d
This is analogous to similar renaming that was done previously for semaphores.
Squashed commit of the following:
sched/signal: Fix a few compile warnings introduced by naming changes.
sched/signal: Rename all private, internal signl functions to use the nxsig_ prefix.
sched/signal: Rename sig_removependingsignal, sig_unmaskpendingsignal, and sig_mqnotempty to nxsig_remove_pendingsignal, nxsig_unmask_pendingsignal, and nxsig_mqnotempty to make it clear that these are OS internal interfaces.
sched/signal: Rename sig_findaction and sig_lowest to nxsig_find_action and nxsig_lowest to make it clear that these are OS internal interfaces.
sched/signal: Rename sig_allocatepingsigaction and sig_deliver to nxsig_alloc_pendingsigaction and nxsig_deliver to make it clear that these are OS internal interfaces.
sched/signal: Rename sig_cleanup, sig_release, sig_releasependingaction, and sig_releasependingsignal to nxsig_cleanup, nxsig_release, nxsig_release_pendingaction, and nxsig_release_pendingsignal to make it clear that these are OS internal interfaces.
sched/signal: Rename sig_tcbdispatch and sig_dispatch to nxsig_tcbdispatch and nxsig_dispatch to make it clear that these are OS internal interfaces.
sched/signal: Rename sig_releaseaction and sig_pendingset to nxsig_release_action and nxsig_pendingset to make it clear that these are OS internal interfaces.
sched/signal: Rename sig_initialize and sig_allocateactionblock to nxsig_initialize and nxsig_alloc_actionblock to make it clear that these are OS internal interfaces.
114 lines
3.9 KiB
C
114 lines
3.9 KiB
C
/****************************************************************************
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* sched/signal/sig_mqnotempty.c
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*
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* Copyright (C) 2007-2009, 2013, 2015, 2017 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/compiler.h>
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#include <signal.h>
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#include <sched.h>
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#include <errno.h>
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#include <debug.h>
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#include "sched/sched.h"
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#include "signal/signal.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxsig_mqnotempty
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*
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* Description:
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* This function is equivalent to sigqueue(), but supports the messaging
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* system's requirement to signal a task when a message queue becomes
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* non-empty. It is identical to sigqueue(), except that it sets the
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* si_code field in the siginfo structure to SI_MESGQ rather than SI_QUEUE.
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*
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****************************************************************************/
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#ifdef CONFIG_CAN_PASS_STRUCTS
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int nxsig_mqnotempty(int pid, int signo, union sigval value)
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#else
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int nxsig_mqnotempty(int pid, int signo, void *sival_ptr)
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#endif
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{
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#ifdef CONFIG_SCHED_HAVE_PARENT
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FAR struct tcb_s *rtcb = this_task();
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#endif
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siginfo_t info;
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int ret;
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#ifdef CONFIG_CAN_PASS_STRUCTS
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sinfo("pid=%p signo=%d value=%d\n", pid, signo, value.sival_int);
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#else
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sinfo("pid=%p signo=%d sival_ptr=%p\n", pid, signo, sival_ptr);
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#endif
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/* Verify that we can perform the signalling operation */
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if (!GOOD_SIGNO(signo))
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{
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return -EINVAL;
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}
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/* Create the siginfo structure */
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info.si_signo = signo;
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info.si_code = SI_MESGQ;
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info.si_errno = OK;
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#ifdef CONFIG_CAN_PASS_STRUCTS
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info.si_value = value;
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#else
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info.si_value.sival_ptr = sival_ptr;
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#endif
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#ifdef CONFIG_SCHED_HAVE_PARENT
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info.si_pid = rtcb->pid;
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info.si_status = OK;
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#endif
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/* Process the receipt of the signal */
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sched_lock();
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ret = nxsig_dispatch(pid, &info);
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sched_unlock();
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return ret;
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}
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