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Diffstat (limited to 'nuttx/sched/mq_unlink.c')
| -rw-r--r-- | nuttx/sched/mq_unlink.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/nuttx/sched/mq_unlink.c b/nuttx/sched/mq_unlink.c deleted file mode 100644 index 1fa25dfa8..000000000 --- a/nuttx/sched/mq_unlink.c +++ /dev/null @@ -1,146 +0,0 @@ -/************************************************************************ - * sched.mq_unlink.c - * - * Copyright (C) 2007, 2009 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 <stdbool.h> -#include <mqueue.h> -#include <sched.h> - -#include "os_internal.h" -#include "mq_internal.h" - -/************************************************************************ - * Pre-processor Definitions - ************************************************************************/ - -/************************************************************************ - * Private Type Declarations - ************************************************************************/ - -/************************************************************************ - * Global Variables - ************************************************************************/ - -/************************************************************************ - * Private Variables - ************************************************************************/ - -/************************************************************************ - * Private Functions - ************************************************************************/ - -/************************************************************************ - * Public Functions - ************************************************************************/ - -/************************************************************************ - * Name: mq_unlink - * - * Description: - * This function removes the message queue named by "mq_name." If one - * or more tasks have the message queue open when mq_unlink() is called, - * removal of the message queue is postponed until all references to the - * message queue have been closed. - * - * Parameters: - * mq_name - Name of the message queue - * - * Return Value: - * None - * - * Assumptions: - * - ************************************************************************/ - -int mq_unlink(const char *mq_name) -{ - FAR msgq_t *msgq; - irqstate_t saved_state; - int ret = ERROR; - - /* Verify the input values */ - - if (mq_name) - { - sched_lock(); - - /* Find the named message queue */ - - msgq = mq_findnamed(mq_name); - if (msgq) - { - /* If it is no longer connected, then we can just - * discard the message queue now. - */ - - if (!msgq->nconnect) - { - /* Remove the message queue from the list of all - * message queues - */ - - saved_state = irqsave(); - (void)sq_rem((FAR sq_entry_t*)msgq, &g_msgqueues); - irqrestore(saved_state); - - /* Then deallocate it (and any messages left in it) */ - - mq_msgqfree(msgq); - } - - /* If the message queue is still connected to a message descriptor, - * then mark it for deletion when the last message descriptor is - * closed - */ - - else - { - msgq->unlinked = true; - } - - ret = OK; - } - - sched_unlock(); - } - - return ret; -} - |