109 lines
4.1 KiB
C
109 lines
4.1 KiB
C
/****************************************************************************
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* include/nuttx/kthread.h
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* Non-standard, NuttX-specific kernel thread-related declarations.
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*
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* Copyright (C) 2013 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 __INCLUDE_NUTTX_KTHREAD_H
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#define __INCLUDE_NUTTX_KTHREAD_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 <sched.h>
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* One processor family supported by NuttX has a single, fixed hardware stack.
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* That is the 8051 family. So for that family only, there is a variant form
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* of kernel_thread() that does not take a stack size parameter. The following
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* helper macro is provided to work around the ugliness of that exception.
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*/
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#ifndef CONFIG_CUSTOM_STACK
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# define KERNEL_THREAD(n,p,s,e,a) kernel_thread(n,p,s,e,a)
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#else
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# define KERNEL_THREAD(n,p,s,e,a) kernel_thread(n,p,e,a)
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#endif
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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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: kernel_thread
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*
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* Description:
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* This function creates and activates a kernel thread task with kernel-mode
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* privileges. It is identical to task_create() except that it configures the
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* newly started thread to run in kernel model.
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*
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* Input Parameters:
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* (same as task_create())
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*
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* Return Value:
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* (same as task_create())
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*
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********************************************************************************/
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#ifndef CONFIG_CUSTOM_STACK
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int kernel_thread(FAR const char *name, int priority, int stack_size,
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main_t entry, FAR char * const argv[]);
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#else
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int kernel_thread(FAR const char *name, int priority, main_t entry,
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FAR char * const argv[]);
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#endif
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCLUDE_NUTTX_KTHREAD_H */
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