sysstate.h

来自「RTEMS (Real-Time Executive for Multiproc」· C头文件 代码 · 共 67 行

/*  sysstates.h
 *
 *  This include file contains information regarding the system state.
 *
 *  COPYRIGHT (c) 1989-1999.
 *  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: sysstate.h,v 1.14.6.1 2003/09/04 18:55:05 joel Exp $
 */

#ifndef __RTEMS_SYSTEM_STATE_h
#define __RTEMS_SYSTEM_STATE_h

#ifdef __cplusplus
extern "C" {
#endif

/* types */

/* enumerated constants */

/*
 *  The following type defines the possible system states.
 */

typedef enum {
  SYSTEM_STATE_BEFORE_INITIALIZATION,   /* start -> end of 1st init part */
  SYSTEM_STATE_BEFORE_MULTITASKING,     /* end of 1st -> beginning of 2nd */
  SYSTEM_STATE_BEGIN_MULTITASKING,      /* just before multitasking starts */
  SYSTEM_STATE_UP,                      /* normal operation */
  SYSTEM_STATE_SHUTDOWN,                /* shutdown */
  SYSTEM_STATE_FAILED                   /* fatal error occurred */
} System_state_Codes;

#define SYSTEM_STATE_CODES_FIRST SYSTEM_STATE_BEFORE_INITIALIZATION
#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 */