blob: fa53602688c489894786d6ce4cbe6b12dd982cce (
plain) (
tree)
|
|
/**
* @file rtems/score/sysstate.h
*
* This include file contains information regarding the system state.
*/
/*
* COPYRIGHT (c) 1989-2006.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef _RTEMS_SCORE_SYSSTATE_H
#define _RTEMS_SCORE_SYSSTATE_H
/**
* @defgroup ScoreSysState System State Handler
*
* This handler encapsulates functionality related to the management of the
* internal system state of RTEMS.
*/
/**@{*/
#ifdef __cplusplus
extern "C" {
#endif
/* types */
/* enumerated constants */
/**
* The following type defines the possible system states.
*/
typedef enum {
/** This indicates that the system state is between the start
* of rtems_initialize_executive_early and the end of the first
* phase of initialization.
*/
SYSTEM_STATE_BEFORE_INITIALIZATION,
/** This indicates that the system state is between end of the first
* phase of initializatin but before multitasking is started.
*/
SYSTEM_STATE_BEFORE_MULTITASKING,
/** This indicates that the system state is attempting to initiate
* multitasking.
*/
SYSTEM_STATE_BEGIN_MULTITASKING,
/** This indicates that the system is up and operating normally. */
SYSTEM_STATE_UP,
/** This indicates that the system is in the midst of a shutdown. */
SYSTEM_STATE_SHUTDOWN,
/** This indicates that a fatal error has occurred. */
SYSTEM_STATE_FAILED
} System_state_Codes;
/** This defines the first system state. */
#define SYSTEM_STATE_CODES_FIRST SYSTEM_STATE_BEFORE_INITIALIZATION
/** This defines the highest value system state. */
#define SYSTEM_STATE_CODES_LAST SYSTEM_STATE_FAILED
/**
* The following variable indicates whether or not this is
* an multiprocessing system.
*/
SCORE_EXTERN boolean _System_state_Is_multiprocessing;
/**
* The following variable contains the current system state.
*/
SCORE_EXTERN System_state_Codes _System_state_Current;
/*
* Make it possible for the application to get the system state information.
*/
#include <rtems/score/sysstate.inl>
#ifdef __cplusplus
}
#endif
/**@}*/
#endif
/* end of include file */
|
