114 lines
4.4 KiB
C
114 lines
4.4 KiB
C
/****************************************************************************
|
|
* sched/task/task_starthook.c
|
|
*
|
|
* Copyright (C) 2013 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 <nuttx/sched.h>
|
|
|
|
#include "task/task.h"
|
|
|
|
#ifdef CONFIG_SCHED_STARTHOOK
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Type Declarations
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: task_starthook
|
|
*
|
|
* Description:
|
|
* Configure a start hook... a function that will be called on the thread
|
|
* of the new task before the new task's main entry point is called.
|
|
* The start hook is useful, for example, for setting up automatic
|
|
* configuration of C++ constructors.
|
|
*
|
|
* Inputs:
|
|
* tcb - The new, unstarted task task that needs the start hook
|
|
* starthook - The pointer to the start hook function
|
|
* arg - The argument to pass to the start hook function.
|
|
*
|
|
* Return:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
void task_starthook(FAR struct task_tcb_s *tcb, starthook_t starthook,
|
|
FAR void *arg)
|
|
{
|
|
/* Only tasks can have starthooks. The starthook will be called when the
|
|
* task is started (or restarted).
|
|
*/
|
|
|
|
#ifndef CONFIG_DISABLE_PTHREAD
|
|
DEBUGASSERT(tcb &&
|
|
(tcb->cmn.flags & TCB_FLAG_TTYPE_MASK) != TCB_FLAG_TTYPE_PTHREAD);
|
|
#endif
|
|
|
|
/* Set up the start hook */
|
|
|
|
tcb->starthook = starthook;
|
|
tcb->starthookarg = arg;
|
|
}
|
|
|
|
#endif /* CONFIG_SCHED_STARTHOOK */
|