forked from Archive/PX4-Autopilot
115 lines
4.1 KiB
C
115 lines
4.1 KiB
C
/****************************************************************************
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* sched/work_internal.h
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*
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* Copyright (C) 2009-2011 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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#ifndef __SCHED_WORK_INTERNAL_H
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#define __SCHED_WORK_INTERNAL_H
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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 <queue.h>
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#ifdef CONFIG_SCHED_WORKQUEUE
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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#ifdef CONFIG_DISABLE_SIGNALS
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# warning "Worker thread support requires signals"
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#endif
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#ifdef CONFIG_SCHED_LPWORK
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# define NWORKERS 2
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#else
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# define NWORKERS 1
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/* This structure defines the state on one work queue */
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struct wqueue_s
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{
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pid_t pid; /* The task ID of the worker thread */
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struct dq_queue_s q; /* The queue of pending work */
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/* The state of each work queue */
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extern struct wqueue_s g_work[NWORKERS];
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: work_hpthread and work_lpthread
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*
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* Description:
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* These are the main worker threads that performs actions placed on the
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* work lists. One thread also performs periodic garbage collection (that
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* is performed by the idle thread if CONFIG_SCHED_WORKQUEUE is not defined).
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*
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* Input parameters:
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* argc, argv (not used)
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*
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* Returned Value:
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* Does not return
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*
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****************************************************************************/
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int work_hpthread(int argc, char *argv[]);
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#ifdef CONFIG_SCHED_LPWORK
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int work_lpthread(int argc, char *argv[]);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_SCHED_WORKQUEUE */
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#endif /* __SCHED_WORK_INTERNAL_H */
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