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Diffstat (limited to 'nuttx/sched/work_internal.h')
-rw-r--r-- | nuttx/sched/work_internal.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/nuttx/sched/work_internal.h b/nuttx/sched/work_internal.h new file mode 100644 index 000000000..69b7bf547 --- /dev/null +++ b/nuttx/sched/work_internal.h @@ -0,0 +1,112 @@ +/**************************************************************************** + * sched/work_internal.h + * + * 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. + * + ****************************************************************************/ + +#ifndef __SCHED_WORK_INTERNAL_H +#define __SCHED_WORK_INTERNAL_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <queue.h> + +#ifdef CONFIG_SCHED_WORKQUEUE + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/* Configuration ************************************************************/ + +#ifndef CONFIG_SCHED_WORKPRIORITY +# define CONFIG_SCHED_WORKPRIORITY 50 +#endif + +#ifndef CONFIG_SCHED_WORKPERIOD +# define CONFIG_SCHED_WORKPERIOD (50*1000) /* 50 milliseconds */ +#endif + +#ifndef CONFIG_SCHED_WORKSTACKSIZE +# define CONFIG_SCHED_WORKSTACKSIZE CONFIG_IDLETHREAD_STACKSIZE +#endif + +#ifdef CONFIG_DISABLE_SIGNALS +# warning "Worker thread support requires signals" +#endif + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/* The queue of pending work */ + +extern struct dq_queue_s g_work; + +/* The task ID of the worker thread */ + +extern pid_t g_worker; + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Name: work_thread + * + * Description: + * This is the main worker thread that performs actions placed on the work + * queue. It also performs periodic garbage collection (that is performed + * by the idle thread if CONFIG_SCHED_WORKQUEUE is not defined). + * + * Input parameters: + * argc, argv (not used) + * + * Returned Value: + * Does not return + * + ****************************************************************************/ + +int work_thread(int argc, char *argv[]); + +#endif /* __ASSEMBLY__ */ +#endif /* CONFIG_SCHED_WORKQUEUE */ +#endif /* __SCHED_WORK_INTERNAL_H */ |