A module that allows Contiki processes to have subprocesses. A subprocess is defined within another process and is created on the fly when needed.

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adamdunkels 2006-09-26 20:53:27 +00:00
parent 4485e50351
commit 25a132cff2

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core/sys/subprocess.h Normal file
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/*
* Copyright (c) 2006, Swedish Institute of Computer Science.
* All rights reserved.
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
*
* This file is part of the Contiki operating system.
*
* $Id: subprocess.h,v 1.1 2006/09/26 20:53:27 adamdunkels Exp $
*/
/**
* \addtogroup sys
* @{
*/
/**
* \defgroup subprocess Contiki subprocesses
* @{
*
* A Contiki subprocess is a "process-in-a-process".
*/
/**
* \file
* Subprocesses for Contiki
* \author
* Adam Dunkels <adam@sics.se>
*/
#ifndef __SUBPROCESS_H__
#define __SUBPROCESS_H__
#define SUBPROCESS_BEGIN(strname) \
{ \
static struct process subprocess_subprocess = {NULL, strname}; \
subprocess_subprocess.thread = PROCESS_CURRENT()->thread; \
process_start(&subprocess_subprocess, NULL); \
PT_INIT(&subprocess_subprocess.pt); \
LC_SET(subprocess_subprocess.pt.lc); \
if(PROCESS_CURRENT() == &subprocess_subprocess) {
#define SUBPROCESS_END() \
PROCESS_EXIT(); \
} \
}
#endif /* __SUBPROCESS_H__ */