OpenModem/bertos/kern/monitor.h

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2014-04-03 14:21:37 -06:00
/**
* \file
* <!--
* This file is part of BeRTOS.
*
* Bertos is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
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* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
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* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As a special exception, you may use this file as part of a free software
* library without restriction. Specifically, if other files instantiate
* templates or use macros or inline functions from this file, or you compile
* this file and link it with other files to produce an executable, this
* file does not by itself cause the resulting executable to be covered by
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* invalidate any other reasons why the executable file might be covered by
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* Copyright 2004 Develer S.r.l. (http://www.develer.com/)
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*
* \brief Monitor to check for stack overflows
*
*
* \author Giovanni Bajo <rasky@develer.com>
*
* $WIZ$ module_name = "monitor"
* $WIZ$ module_depends = "kernel"
* $WIZ$ module_configuration = "bertos/cfg/cfg_monitor.h"
*/
#ifndef KERN_MONITOR_H
#define KERN_MONITOR_H
#include "cfg/cfg_monitor.h"
#include <cpu/types.h>
/**
* Start the kernel monitor. It is a special process which checks every second the stacks of the
* running processes trying to detect stack overflows.
*
* \param stacksize Size of stack in chars
* \param stack Pointer to the stack that will be used by the monitor
*
* \note The stack is provided by the caller so that there is no wasted space if the monitor
* is not used.
*/
void monitor_start(size_t stacksize, cpu_stack_t *stack);
/**
* Manually check if a given stack has overflown. This is used to check for stacks
* of processes handled externally form the kernel, or for other stacks (for instance
* the interrupt supervisor stack).
*
* \note For this function to work, the stack must have been filled at startup with
* CONFIG_KERN_STACKFILLCODE.
*/
size_t monitor_checkStack(cpu_stack_t *stack_base, size_t stack_size);
/** Print a report of the stack status through kdebug */
void monitor_report(void);
#endif /* KERN_MONITOR_H */