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author | Lorenz Meier <lm@inf.ethz.ch> | 2013-06-01 01:04:32 +0200 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-06-01 01:04:32 +0200 |
commit | 5375bb5b86e266157ceceef08c367da711b8144e (patch) | |
tree | 88bc81cab11d8f0b2b6f9391f803051c081b2ecb /nuttx/sched/work_queue.c | |
parent | 27ee36b2049167a1272122548fe61aa2993d79c1 (diff) | |
download | px4-firmware-5375bb5b86e266157ceceef08c367da711b8144e.tar.gz px4-firmware-5375bb5b86e266157ceceef08c367da711b8144e.tar.bz2 px4-firmware-5375bb5b86e266157ceceef08c367da711b8144e.zip |
Cleanup, WIP, needs a NuttX checkout to Firmware/NuttX now
Diffstat (limited to 'nuttx/sched/work_queue.c')
-rw-r--r-- | nuttx/sched/work_queue.c | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/nuttx/sched/work_queue.c b/nuttx/sched/work_queue.c deleted file mode 100644 index 075f08a4d..000000000 --- a/nuttx/sched/work_queue.c +++ /dev/null @@ -1,138 +0,0 @@ -/**************************************************************************** - * sched/work_queue.c - * - * Copyright (C) 2009-2011 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 <stdint.h> -#include <queue.h> -#include <assert.h> -#include <errno.h> -#include <debug.h> - -#include <nuttx/arch.h> -#include <nuttx/clock.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_queue - * - * Description: - * Queue work to be performed at a later time. All queued work will be - * performed on the worker thread of of execution (not the caller's). - * - * The work structure is allocated by caller, but completely managed by - * the work queue logic. The caller should never modify the contents of - * the work queue structure; the caller should not call work_queue() - * again until either (1) the previous work has been performed and removed - * from the queue, or (2) work_cancel() has been called to cancel the work - * and remove it from the work queue. - * - * Input parameters: - * qid - The work queue ID (index) - * work - The work structure to queue - * worker - The worker callback to be invoked. The callback will invoked - * on the worker thread of execution. - * arg - The argument that will be passed to the workder callback when - * int is invoked. - * delay - Delay (in clock ticks) from the time queue until the worker - * is invoked. Zero means to perform the work immediately. - * - * Returned Value: - * Zero on success, a negated errno on failure - * - ****************************************************************************/ - -int work_queue(int qid, FAR struct work_s *work, worker_t worker, - FAR void *arg, uint32_t delay) -{ - FAR struct wqueue_s *wqueue = &g_work[qid]; - irqstate_t flags; - - DEBUGASSERT(work != NULL && (unsigned)qid < NWORKERS); - - /* First, initialize the work structure */ - - work->worker = worker; /* Work callback */ - work->arg = arg; /* Callback argument */ - work->delay = delay; /* Delay until work performed */ - - /* Now, time-tag that entry and put it in the work queue. This must be - * done with interrupts disabled. This permits this function to be called - * from with task logic or interrupt handlers. - */ - - flags = irqsave(); - work->qtime = clock_systimer(); /* Time work queued */ - - dq_addlast((FAR dq_entry_t *)work, &wqueue->q); - kill(wqueue->pid, SIGWORK); /* Wake up the worker thread */ - - irqrestore(flags); - return OK; -} - -#endif /* CONFIG_SCHED_WORKQUEUE */ |