diff options
Diffstat (limited to 'nuttx/sched/work_cancel.c')
-rw-r--r-- | nuttx/sched/work_cancel.c | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/nuttx/sched/work_cancel.c b/nuttx/sched/work_cancel.c deleted file mode 100644 index 55df86f44..000000000 --- a/nuttx/sched/work_cancel.c +++ /dev/null @@ -1,127 +0,0 @@ -/**************************************************************************** - * sched/work_cancel.c - * - * Copyright (C) 2009-2010, 2012 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 <queue.h> -#include <assert.h> -#include <errno.h> -#include <debug.h> - -#include <nuttx/arch.h> -#include <nuttx/wqueue.h> - -#include "work_internal.h" - -#ifdef CONFIG_SCHED_WORKQUEUE - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Type Declarations - ****************************************************************************/ - -/**************************************************************************** - * Public Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: work_cancel - * - * Description: - * Cancel previously queued work. This removes work from the work queue. - * After work has been canceled, it may be re-queue by calling work_queue() - * again. - * - * Input parameters: - * qid - The work queue ID - * work - The previously queue work structure to cancel - * - * Returned Value: - * Zero on success, a negated errno on failure - * - ****************************************************************************/ - -int work_cancel(int qid, FAR struct work_s *work) -{ - FAR struct wqueue_s *wqueue = &g_work[qid]; - irqstate_t flags; - - DEBUGASSERT(work != NULL && (unsigned)qid < NWORKERS); - - /* Cancelling the work is simply a matter of removing the work structure - * from the work queue. This must be done with interrupts disabled because - * new work is typically added to the work queue from interrupt handlers. - */ - - flags = irqsave(); - if (work->worker != NULL) - { - /* A little test of the integrity of the work queue */ - - DEBUGASSERT(work->dq.flink ||(FAR dq_entry_t *)work == wqueue->q.tail); - DEBUGASSERT(work->dq.blink ||(FAR dq_entry_t *)work == wqueue->q.head); - - /* Remove the entry from the work queue and make sure that it is - * mark as availalbe (i.e., the worker field is nullified). - */ - - dq_rem((FAR dq_entry_t *)work, &wqueue->q); - work->worker = NULL; - } - - irqrestore(flags); - return OK; -} - -#endif /* CONFIG_SCHED_WORKQUEUE */ |