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