modularize.h

一个用在mips体系结构中的操作系统

/*
 * Copyright (C) 1996-1998 by the Board of Trustees
 *    of Leland Stanford Junior University.
 * 
 * This file is part of the SimOS distribution. 
 * See LICENSE file for terms of the license. 
 *
 */

/* 
 *  @TITLE "modularize.h"
 *
 *  This file is supposed to include all the typedefs, macros
 *  and function headers that allows diskdevice.c to compile
 *  independently of proteus.
 *
 */
/* $Id: modularize.h,v 1.7 1998/02/10 00:36:46 bosch Exp $ */

#ifndef MODULARIZE_H
#define MODULARIZE_H

/* ---- including header files ---- */
#include <stdio.h>
#include <math.h>  
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <malloc.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sim_error.h>

/* ---- constant declarations ---- */
#define TRUE        1
#define FALSE       0
#define ERROR      -1		/* misc error */
#define FATAL      -9		/* fatal error */


/* ----global variables ---- */
/* none */

/* ---- macros for debugging ---- */
#define DEBUG1 if (1)
#define DEBUG0 if (0)


/* ======================================================================= */
/* Redefinition of the macros or constants previously available in
   porteus main program. */
#define PRIVATE static
#define ulong unsigned long
#define CYCLE_COUNTING_OFF
#define CYCLE_COUNTING_ON

#define INVARIANT2(a,b)   {if (!(a)) {fprintf(stderr, b); ASSERT(0);}}
#define INVARIANT3(a,b,c)   {if (!(a)) {fprintf(stderr, b, c); ASSERT(0);}}
#define INVARIANT4(a,b,c,d)   {if (!(a)) {fprintf(stderr, b, c, d); ASSERT(0);}}
#ifndef SOLO
extern double diskTICSperMSEC;
#define TICSperMSEC (diskTICSperMSEC)
#define MSECperTIC  (1.0/diskTICSperMSEC)
#else
#define TICSperMSEC  25000.0	/* assuming 25MHz */
#define MSECperTIC  (1/25000.0)	/* assuming 25MHz */
#endif
#define UlongAbsDiff(a,b)  ((a) >(b)? ((a)-(b)):((b)-(a)))
#define define_local(a, b, c) (*(a) = (b))

/* though only consists of 0 and 1 */
typedef int boolean;

/* definition for TICS */

#ifdef LONG_LONG_TIME 
typedef uint64 TICS;
#else
typedef unsigned long TICS;
#endif

#ifdef LONG_LONG_TIME
# define MAXTIME (TICS)(0xffffffffffffffffLL)
#else
# define MAXTIME (TICS)(0xffffffffL)
#endif
#define NEVER MAXTIME

/* Redefinition of functions in the timing module */
TICS InitTime(void);
TICS GetTime(void);
TICS max(TICS one, TICS two);
TICS min(TICS one, TICS two);
void WaitTime(TICS);
void WaitDuration(TICS);
char* time_print(TICS t);
char* timep_print(TICS *t);


/* ======================================================================= */
/* this is the global structure that contains information about time */
typedef struct timestruct
{
  TICS currenttime;
} timestruct;

/* this is to be used by the event manager */
void thread_suspend(int tid);
#define MY_TID  0xFF		/* just a dummy used as a thread ID */
#define MY_STID 0xFF		/* another dummy */

#ifndef SOLO
extern void thread_wakeup(int disk,int tid);
extern void  thread_suspend_continue(int tid, void (*routine)(void *), void *arg);
#endif

/* ---------------- for REQUEST() only ------------------- */

/* maximum heap size */
#define HEAP_MAX  40

#define CURR_PROCESSOR 5	/* dummy */

#define NO_OF_DISKS 1000      /* plenty */

#define INDEX_EVENT(a,b,c)      {}
#define INDEX_TIME_EVENT(a,b,c,d) {}
#define SUM_ARRAY_METRIC(a, b, c) {}
#define AVG_ARRAY_METRIC(a,b,c)   {}
#define STDDEV_ARRAY_METRIC(a,b,c,d) {}

typedef char *UserData;  

/* ---- typedef for function pointer to functions that returns void ---- */
typedef void (*FuncPtr)(int, TICS);

#endif                          /* only include this file if it is not
				   previously included */