mainwaitingthread.cpp

模拟Linux文件系统 在任一OS下

#include"disk.h"

disk DISK;



//int userthreadfunction();
DWORD WINAPI userthreadfunction(LPVOID threadNo);


openfilemanager otemp;
void main()
{
	/*
	InitializeConditionVariable (&thereisspace);
    InitializeConditionVariable (&thereisapplication);
    InitializeCriticalSection (&ArrayLock);
	InitializeCriticalSection (&getLock);
	InitializeCriticalSection (&putLock);
	*/
	

	cout<<"请输入你的用户名与密码:"<<endl;
	cout<<"之后是用户名密码验证，开辟新的线程，并根据用户名信息装载权能字列表，以便之后的权限访问控制，"<<endl
		<<"但由于时间问题没有将这部分完成所以这个程序是没有访问控制的,也没有用户信息的储存，因此用户名与密码随便输入就行"<<endl;
	char username[20];
	char userpassword[20];
	cin>>username;
	cout<<"用户名输入完成，请输入密码"<<endl;
	cin>>userpassword;
	cout<<"如果是第一次使用该文件系统，则一定要先进行格式化并装载文件系统,你是否需要格式化：Y/N"<<endl;
	char c;
	cin>>c;

	fstream iof("filesystem",ios::binary|ios::in|ios::out);
	if(!iof){
		cout<<"cannot open such a file"<<endl;
		return;
	}
	DISK.disk_open(iof);
	if(c!='N'&&c!='n'){
		cout<<"格式化需要5到6秒左右时间"<<endl;
		DISK.format();
		DISK.installfilesystem();
	}
//	userthreadfunction();
	DWORD id;
    HANDLE hks= CreateThread (NULL, 0,userthreadfunction, NULL, 0, &id);
	WaitForSingleObject (hks, INFINITE);
	iof.close();
}
/*
void kedispatchfunction(LPVOID threadNo)
{
	switch(applynum){
	case APPLYNUM_CD:{//先改变当前路径并获得新的服务句柄
		cp->add((userdata_cd*)threadNo->file
		

	DWORD result=0;
	return result;
}
*/

//int userthreadfunction()
DWORD WINAPI userthreadfunction(LPVOID threadNo)
{
	
	cout<<"*******************************************************************"<<endl
		<<"****姓名：邹少聪  学号：200630473254  班级：计算机科学与技术1班****"<<endl
		<<"****实验名称：文件系统的模拟                                       "<<endl
		<<"*******************************************************************"<<endl;
	char code[40];
	char codetemp[20];
	currentpath userpath("root");
	userpath.format();
//	cp=&userpath;
	servicehandle sh=otemp.createopenfileitem(&userpath);
	cout<<"该文件系统的命令列表如下:如果指令不理解怎样用可参考开发文档的例子"<<endl
		<<"cd…:  改变目录：改变当前工作目录，目录不存在时给出出错信息。如：root/cd foldername又如 root/ok/cd .."<<endl
		<<"dir…: 显示目录，显示所有子目录及文件名。如：root/dir"<<endl
		<<"md…:  创建目录：在指定路径或当前路径下创建指定目录。重名时给出错信息。如：root/md foldername"<<endl
		<<"rd …: 删除目录：删除指定目录下所有文件和子目录。要删目录不空时，要给出提示是否要删除。如：root/rd foldername"<<endl
		<<"newfile …:  利用外部文件建立文件。即将外部文件复制到这个文件系统的当前路径。如： root/newfile filename"<<endl
		<<"out…:与newfile指令相反，将指定文件复制到外部程序所在目录处。如：root/out sourcefile desfile "<<endl
		<<"cat …:  打开文件。如：root/cat filename"<<endl
		<<"copy …:  拷贝文件.如:copy -i sourcefile desfile"<<endl
	    <<"exit:关闭文件系统。"<<endl;
    mystring ms;
	ms.open(code);
	while(true){
		cin.get();
		cout<<userpath.cp;
		cout<<"/";
		cin.get(code,40);
		//////////////
		ms.gobeg();
		ms.get(codetemp);
		////////////////
		if(strcmp(codetemp,"cd")==0){//先改变当前路径并获得新的服务句柄          cd
			ms.get(codetemp);
			if(codetemp[0]=='r'&&codetemp[1]=='o'&&codetemp[2]=='o'&&codetemp[3]=='t'&&(codetemp[4]=='/'||codetemp[4]=='\0')){
				currentpath temp(codetemp);
				temp.format();
				servicehandle sh2=otemp.createopenfileitem(&temp);
				if(sh2!=NULL){
					userpath.open(codetemp);
					userpath.format();
				}
				else
					cout<<"there is no such a file"<<endl;
			}
			else {
				if(strcmp(codetemp,".")==0);
				else if(strcmp(codetemp,"..")==0){
					userpath.sub();
					sh=otemp.createopenfileitem(&userpath);
				}
				else{
					userpath.add(codetemp);
					servicehandle sh2=otemp.createopenfileitem(&userpath);
					if(sh2!=NULL){
						sh=otemp.createopenfileitem(&userpath);
						otemp.deleteitem(sh2);
					}
					else{
						cout<<"there is no such a file"<<endl;
						userpath.sub();

					}
				}
			}
		}
		else if(strcmp(codetemp,"dir")==0){/////////////dir
			kernel_folderbrowse(sh);
		}
		else if(strcmp(codetemp,"md")==0){////////////////////////////////md
			ms.get(codetemp);
			kernel_createfolder(sh,codetemp);
		}
		else if(strcmp(codetemp,"rd")==0){//////////////////////////rd
			ms.get(codetemp);
			kernel_folderdeleteitem(sh,codetemp);
		}
		else if(strcmp(codetemp,"newfile")==0){//////////////////////////////////newfile
			ms.get(codetemp);
			kernel_createfile(sh,codetemp);
		}
		else if(strcmp(codetemp,"cat")==0){//先获取新的句柄，再浏览文件   cat
			ms.get(codetemp);
			userpath.add(codetemp);
			servicehandle sh2=otemp.createopenfileitem(&userpath);
			kernel_filecat_text(sh2);
			userpath.sub();
			otemp.deleteitem(sh2);
		}
		else if(strcmp(codetemp,"del")==0){//////////////////////del
			ms.get(codetemp);
			kernel_folderdeletefile(sh,codetemp);
		}
		else if(strcmp(codetemp,"copy")==0){////////////////////////////////copy
			ms.get(codetemp);
			char ttt[20];
			if(strcmp(codetemp,"-i")==0){
				ms.get(codetemp);
				userpath.add(codetemp);
				servicehandle sh2=otemp.createopenfileitem(&userpath);
				if(sh2==NULL){
					cout<<"the source file is not exit in this folder"<<endl;
					userpath.sub();
					continue;
				}
				else{
					
					strcpy(ttt,"1/");
					strcat(ttt,codetemp);
					kernel_fileoutcopy(sh2,ttt);
					userpath.sub();
					otemp.deleteitem(sh2);
				}
			}
			else{
				cout<<"wrong input"<<endl;
				continue;
			}
			ms.get(codetemp);
			currentpath cptemp(codetemp);
			cptemp.format();
			servicehandle sh3=otemp.createopenfileitem(&cptemp);

			kernel_createfile(sh3,ttt+2);
			otemp.deleteitem(sh3);
	//		system("del codetemptext.txt");
		}

		else if(strcmp(codetemp,"out")==0){//先获取新的句柄，再复制文件        out
			ms.get(codetemp);
			userpath.add(codetemp);
			servicehandle sh2=otemp.createopenfileitem(&userpath);
			if(sh2==NULL){
				cout<<"the source file is not exit in this folder"<<endl;
				userpath.sub();
			}
			else{
				ms.get(codetemp);
				if(codetemp[0]=='\0'){
					cout<<"the destination file is not written"<<endl;
				}
				else
					kernel_fileoutcopy(sh2,codetemp);
				userpath.sub();
				otemp.deleteitem(sh2);
			}
		}
		else if(strcmp(codetemp,"info")==0){
			cout<<"：用100M的文件来模拟，一块1K，分102400块，boot block与super block占一个块，"<<endl
				<<"即使第0块，freespace map占13个块，从第1块到第13块，每块内部用1000个位来"<<endl
				<<"表示1000个块的空闲与使用状况，inodelist用50块，由第14块一直到第64块，每"<<endl
				<<"块放12个node,每个inode 84字节。"<<endl;
		}
		else if(strcmp(codetemp,"cd..")==0){
			cout<<"请在cd与..之间加空格"<<endl;
		}
		else if(strcmp(codetemp,"exit")==0)
				break;
		else cout<<"wrong input"<<endl;
//		cout<<endl;

	}
	return 0;
		
}
/*
int userthreadfunction(){
	currentpath x("root");
	x.format();
	servicehandle sh=otemp.createopenfileitem(&x);
	kernel_createfolder(sh,"ok2");
	//kernel_folderbrowse(sh);
	kernel_createfolder(sh,"ok");
	cout<<x.cp<<endl;
	kernel_folderbrowse(sh);
//	kernel_folderdeleteitem(sh,"ok2");
//	kernel_folderbrowse(sh);



	currentpath xx("root/ok");
	xx.format();
	servicehandle sh_new=otemp.createopenfileitem(&xx);
	kernel_createfolder(sh_new,"yes");
	kernel_folderdeleteitem(sh,"ok");
	kernel_folderdeleteitem(sh,"wc");
	cout<<xx.cp<<endl;
	kernel_folderbrowse(sh_new);
	xx.add("yes");
	servicehandle sh_new2=otemp.createopenfileitem(&xx);
	kernel_createfolder(sh_new2,"haha");
	cout<<xx.cp<<endl;
	kernel_folderbrowse(sh_new);
	cout<<xx.cp<<endl;
	kernel_folderbrowse(sh_new2);
    return 0;
}

*/