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-rw-r--r--nuttx/sched/task_activate.c117
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diff --git a/nuttx/sched/task_activate.c b/nuttx/sched/task_activate.c
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-/****************************************************************************
- * sched/task_activate.c
- *
- * Copyright (C) 2007-2009 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 <sched.h>
-#include <debug.h>
-
-#include <nuttx/arch.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Type Declarations
- ****************************************************************************/
-
-/****************************************************************************
- * Global Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Private Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: task_activate
- *
- * Description:
- * This function activates tasks initialized by task_schedsetup(). Without
- * activation, a task is ineligible for execution by the scheduler.
- *
- * Input Parameters:
- * tcb - The TCB for the task for the task (same as the task_init argument).
- *
- * Return Value:
- * Always returns OK
- *
- ****************************************************************************/
-
-int task_activate(FAR _TCB *tcb)
-{
- irqstate_t flags = irqsave();
-
-#ifdef CONFIG_SCHED_INSTRUMENTATION
-
- /* Check if this is really a re-start */
-
- if (tcb->task_state != TSTATE_TASK_INACTIVE)
- {
- /* Inform the instrumentation layer that the task
- * has stopped
- */
-
- sched_note_stop(tcb);
- }
-
- /* Inform the instrumentation layer that the task
- * has started
- */
-
- sched_note_start(tcb);
-#endif
-
- up_unblock_task(tcb);
- irqrestore(flags);
- return OK;
-}