136 lines
5.2 KiB
C
136 lines
5.2 KiB
C
/****************************************************************************
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* sched/wqueue/wqueue.h
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*
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* Copyright (C) 2014 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_WQUEUE_WQUEUE_H
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#define __SCHED_WQUEUE_WQUEUE_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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#ifdef CONFIG_SCHED_WORKQUEUE
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef CONFIG_SCHED_HPWORK
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/* The state of the kernel mode, high priority work queue. */
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extern struct wqueue_s g_hpwork;
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#endif
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#ifdef CONFIG_SCHED_LPWORK
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/* The state of the kernel mode, low priority work queue(s). */
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extern struct wqueue_s g_lpwork;
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#endif
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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
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*
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* Description:
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* This is the worker thread that performs the actions placed on the high
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* priority work queue.
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*
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* This, along with the lower priority worker thread(s) are the kernel
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* mode work queues (also build in the flat build). One of these threads
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* also performs periodic garbage collection (that would otherwise be
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* performed by the idle thread if CONFIG_SCHED_WORKQUEUE is not defined).
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* That will be the higher priority worker thread only if a lower priority
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* worker thread is available.
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*
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* All kernel mode worker threads are started by the OS during normal
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* bring up. This entry point is referenced by OS internally and should
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* not be accessed by application logic.
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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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#ifdef CONFIG_SCHED_HPWORK
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int work_hpthread(int argc, char *argv[]);
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#endif
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/****************************************************************************
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* Name: work_lpthread
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*
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* Description:
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* These are the worker thread(s) that performs the actions placed on the
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* low priority work queue.
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*
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* These, along with the higher priority worker thread are the kernel mode
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* work queues (also build in the flat build). One of these threads also
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* performs periodic garbage collection (that would otherwise be performed
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* by the idle thread if CONFIG_SCHED_WORKQUEUE is not defined). That will
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* be the lower priority worker thread if it is available.
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*
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* All kernel mode worker threads are started by the OS during normal
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* bring up. This entry point is referenced by OS internally and should
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* not be accessed by application logic.
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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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#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 /* CONFIG_SCHED_WORKQUEUE */
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#endif /* __SCHED_WQUEUE_WQUEUE_H */
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