file_systems/random_file_actions/random_file_actions.cpp

153 		"Performs some random file actions for file system testing.\n"
158 		"  -f, --file-count=<count>\tThe maximal number of files to create.\n"
162 		"  -m, --max-file-size=<size>\tThe maximal file size of the files.\n"
170 		"  -n, --no-cache\t\tDisables the file cache when doing I/O on\n"
171 		"\t\t\t\ta file.\n"
315 		// in the append case, we need to check the file size
318 			error("stat file failed: %s\n", strerror(errno));
390 check_file(const struct entry& file)
392 	int fd = open_file(file.name, O_RDONLY);
394 		error("opening file \"%s\" failed: %s", file.name.c_str(),
402 		error("stat file \"%s\" failed: %s", file.name.c_str(), strerror(errno));
404 	if (file.size != stat.st_size) {
406 			file.name.c_str(), file.size, stat.st_size);
413 	off_t size = file.size;
425 			error("reading \"%s\" failed: %s", file.name.c_str(),
431 		generate_block(generatedBlock, file, offset);
436 			error("block at %lld differ in \"%s\"!", offset, file.name.c_str());
455 		const struct entry& file = *i;
457 		check_file(file);
558 	std::string name = create_name(parent, "file");
560 	action("create file %s (identifier %lu)", name.c_str(), sCount);
564 		error("creating file \"%s\" failed: %s", name.c_str(), strerror(errno));
566 	struct entry file;
567 	file.name = name;
568 	file.identifier = sCount;
569 	file.size = 0;
570 	write_blocks(fd, file);
572 	files.push_back(file);
574 	fs_write_attr(fd, kIdentifierAttribute, B_UINT32_TYPE, 0, &file.identifier,
594 		error("removing file \"%s\" failed: %s", name.c_str(), strerror(errno));
596 	action("removed file %s", name.c_str());
610 	std::string newName = create_name(parent, "renamed-file");
615 	action("rename file \"%s\" to \"%s\"", oldName.c_str(), newName.c_str());
618 		error("renaming file \"%s\" to \"%s\" failed: %s", oldName.c_str(),
632 	struct entry& file = files[choose_index(files)];
634 	action("append to \"%s\"", file.name.c_str());
636 	int fd = open_file(file.name, O_WRONLY | O_APPEND);
638 		error("appending to file \"%s\" failed: %s", file.name.c_str(),
642 	write_blocks(fd, file, true);
653 	struct entry& file = files[choose_index(files)];
655 	action("replace \"%s\" contents", file.name.c_str());
658 		check_file(file);
660 	int fd = open_file(file.name, O_CREAT | O_WRONLY | O_TRUNC);
662 		error("replacing file \"%s\" failed: %s", file.name.c_str(),
666 	file.size = 0;
667 	write_blocks(fd, file);
679 	struct entry& file = files[choose_index(files)];
681 	action("truncate \"%s\"", file.name.c_str());
684 		check_file(file);
686 	int fd = open_file(file.name, O_WRONLY | O_TRUNC);
688 		error("truncating file \"%s\" failed: %s", file.name.c_str(),
692 	file.size = 0;
709 		{"file-count", required_argument, 0, 'f'},
712 		{"max-file-size", required_argument, 0, 'm'},
752 				// file count
774 				// max file size
828 					// create a single file