process.h

上一个上传的有问题,这个是好的。visopsys包括系统内核和GUI的全部SOURCE code ,还包括一些基本的docs文档。里面src子目录对应所有SOURCE code.对于想研究操作系统的朋

// 
//  Visopsys
//  Copyright (C) 1998-2007 J. Andrew McLaughlin
//  
//  This library is free software; you can redistribute it and/or modify it
//  under the terms of the GNU Lesser General Public License as published by
//  the Free Software Foundation; either version 2.1 of the License, or (at
//  your option) any later version.
//
//  This library 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 Lesser
//  General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public License
//  along with this library; if not, write to the Free Software Foundation,
//  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
//  process.h
//

// This file contains definitions and structures for using and manipulating
// processes in Visopsys.

#if !defined(_PROCESS_H)

#include <string.h>

#define MAX_PROCNAME_LENGTH  64
#define MAX_PROCESSES        ((GDT_SIZE - RES_GLOBAL_DESCRIPTORS))

// An enumeration listing possible process states
typedef enum {
  proc_running, proc_ready, proc_waiting, proc_sleeping, proc_stopped,
  proc_finished, proc_zombie
} processState;

// An enumeration listing possible process types
typedef enum {
  proc_normal, proc_thread
} processType;

typedef struct {
  void *virtualAddress;
  void *entryPoint;
  void *code;
  unsigned codeSize;
  void *data;
  unsigned dataSize;
  unsigned imageSize;
  char commandLine[MAXSTRINGLENGTH];
  int argc;
  char *argv[64];

} processImage;

typedef struct {
  char processName[MAX_PROCNAME_LENGTH];
  int userId;
  int processId;
  processType type;
  int priority;
  int privilege;
  int parentProcessId;
  int descendentThreads;
  int cpuPercent;
  processState state;

} process;

#define _PROCESS_H
#endif