C++ DOS_DTA::GetDirID方法代码示例

bool localDrive::FindNext(DOS_DTA & dta) {

	char * dir_ent;
	struct stat stat_block;
	char full_name[CROSS_LEN];
	char dir_entcopy[CROSS_LEN];

	Bit8u srch_attr;char srch_pattern[DOS_NAMELENGTH_ASCII];
	Bit8u find_attr;

	dta.GetSearchParams(srch_attr,srch_pattern);
	Bit16u id = dta.GetDirID();

again:
	if (!dirCache.FindNext(id,dir_ent)) {
		DOS_SetError(DOSERR_NO_MORE_FILES);
		return false;
	}
	if(!WildFileCmp(dir_ent,srch_pattern)) goto again;

	strcpy(full_name,srchInfo[id].srch_dir);
	strcat(full_name,dir_ent);
	
	//GetExpandName might indirectly destroy dir_ent (by caching in a new directory 
	//and due to its design dir_ent might be lost.)
	//Copying dir_ent first
	strcpy(dir_entcopy,dir_ent);
	if (stat(dirCache.GetExpandName(full_name),&stat_block)!=0) { 
		goto again;//No symlinks and such
	}	

	if(stat_block.st_mode & S_IFDIR) find_attr=DOS_ATTR_DIRECTORY;
	else find_attr=DOS_ATTR_ARCHIVE;
 	if (~srch_attr & find_attr & (DOS_ATTR_DIRECTORY | DOS_ATTR_HIDDEN | DOS_ATTR_SYSTEM)) goto again;
	
	/*file is okay, setup everything to be copied in DTA Block */
	char find_name[DOS_NAMELENGTH_ASCII];Bit16u find_date,find_time;Bit32u find_size;

	if(strlen(dir_entcopy)<DOS_NAMELENGTH_ASCII){
		strcpy(find_name,dir_entcopy);
		upcase(find_name);
	} 

	find_size=(Bit32u) stat_block.st_size;
	struct tm *time;
	if((time=localtime(&stat_block.st_mtime))!=0){
		find_date=DOS_PackDate((Bit16u)(time->tm_year+1900),(Bit16u)(time->tm_mon+1),(Bit16u)time->tm_mday);
		find_time=DOS_PackTime((Bit16u)time->tm_hour,(Bit16u)time->tm_min,(Bit16u)time->tm_sec);
	} else {
		find_time=6; 
		find_date=4;
	}
	dta.SetResult(find_name,find_size,find_date,find_time,find_attr);
	return true;
}

bool physfsDrive::FindNext(DOS_DTA & dta) {

	char * dir_ent;
	char full_name[CROSS_LEN];

	Bit8u srch_attr;char srch_pattern[DOS_NAMELENGTH_ASCII];
	Bit8u find_attr;

	dta.GetSearchParams(srch_attr,srch_pattern);
	
	Bitu id = dta.GetDirID();

again:
	if (!dirCache.FindNext(id,dir_ent)) {
		DOS_SetError(DOSERR_NO_MORE_FILES);
		return false;
	}
	if(!WildFileCmp(dir_ent,srch_pattern)) goto again;

	char find_name[DOS_NAMELENGTH_ASCII];Bit16u find_date,find_time;Bit32u find_size;
	if(strlen(dir_ent)<DOS_NAMELENGTH_ASCII){
		strcpy(find_name,dir_ent);
		upcase(find_name);
	} 

	strcpy(full_name,srchInfo[id].srch_dir);
	strcat(full_name,dir_ent);
	dirCache.ExpandName(full_name);
	normalize(full_name,basedir);
	
	if (PHYSFS_isDirectory(full_name)) find_attr=DOS_ATTR_DIRECTORY|DOS_ATTR_ARCHIVE;
	else find_attr=DOS_ATTR_ARCHIVE;
 	if (~srch_attr & find_attr & (DOS_ATTR_DIRECTORY | DOS_ATTR_HIDDEN | DOS_ATTR_SYSTEM)) goto again;
	
	/*file is okay, setup everything to be copied in DTA Block */
	find_size=(Bit32u)PHYSFS_fileLength(full_name);
	time_t mytime = (time_t)PHYSFS_getLastModTime(full_name);
	struct tm *time;
	if((time=localtime(&mytime))!=0){
		find_date=DOS_PackDate((Bit16u)(time->tm_year+1900),(Bit16u)(time->tm_mon+1),(Bit16u)time->tm_mday);
		find_time=DOS_PackTime((Bit16u)time->tm_hour,(Bit16u)time->tm_min,(Bit16u)time->tm_sec);
	} else {
		find_time=6; 
		find_date=4;
	}
	dta.SetResult(find_name,find_size,find_date,find_time,find_attr);
	return true;
}

bool isoDrive::FindNext(DOS_DTA &dta) {
	Bit8u attr;
	char pattern[DOS_NAMELENGTH_ASCII];
	dta.GetSearchParams(attr, pattern);
	
	int dirIterator = dta.GetDirID();
	bool isRoot = dirIterators[dirIterator].root;
	
	isoDirEntry de;
	while (GetNextDirEntry(dirIterator, &de)) {
		Bit8u findAttr = 0;
		if (IS_DIR(FLAGS1)) findAttr |= DOS_ATTR_DIRECTORY;
		else findAttr |= DOS_ATTR_ARCHIVE;
		if (IS_HIDDEN(FLAGS1)) findAttr |= DOS_ATTR_HIDDEN;

		if (!IS_ASSOC(FLAGS1) && !(isRoot && de.ident[0]=='.') && WildFileCmp((char*)de.ident, pattern)
			&& !(~attr & findAttr & (DOS_ATTR_DIRECTORY | DOS_ATTR_HIDDEN | DOS_ATTR_SYSTEM))) {
			
			/* file is okay, setup everything to be copied in DTA Block */
			char findName[DOS_NAMELENGTH_ASCII];		
			findName[0] = 0;
			if(strlen((char*)de.ident) < DOS_NAMELENGTH_ASCII) {
				strcpy(findName, (char*)de.ident);
				upcase(findName);
			}
			Bit32u findSize = DATA_LENGTH(de);
			Bit16u findDate = DOS_PackDate(1900 + de.dateYear, de.dateMonth, de.dateDay);
			Bit16u findTime = DOS_PackTime(de.timeHour, de.timeMin, de.timeSec);
			dta.SetResult(findName, findSize, findDate, findTime, findAttr);
			return true;
		}
	}
	// after searching the directory, free the iterator
	FreeDirIterator(dirIterator);
	
	DOS_SetError(DOSERR_NO_MORE_FILES);
	return false;
}