harmony(鸿蒙)JS API Changes of the File Management Subsystem

2022-08-09
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JS API Changes of the File Management Subsystem

The table below lists the APIs changes of the file management subsystem in OpenHarmony 3.1 Release over OpenHarmony 3.0 LTS.

API Changes

Module	Class	Method/Attribute/Enumeration/Constant	Change Type
ohos.statfs	Statfs	getTotalBytes(path: string, callback: AsyncCallback<number>): void; getTotalBytes(path: string): Promise<number>;	Added
ohos.statfs	Statfs	getFreeBytes(path: string, callback: AsyncCallback<number>): void; getFreeBytes(path: string): Promise<number>;	Added
ohos.fileio	Watcher	stop(): Promise<void>; stop(callback: AsyncCallback<void>): void;	Added
ohos.fileio	ReadOut	buffer: ArrayBuffer;	Added
ohos.fileio	ReadOut	offset: number;	Added
ohos.fileio	ReadOut	bytesRead: number;	Added
ohos.fileio	Stream	read(buffer: ArrayBuffer, options?: { position?: number; offset?: number; length?: number; }): Promise<ReadOut>; read(buffer: ArrayBuffer, callback: AsyncCallback<ReadOut>): void; read(buffer: ArrayBuffer, options: { position?: number; offset?: number; length?: number; }, callback: AsyncCallback<ReadOut>): void;	Added
ohos.fileio	Stream	write(buffer: ArrayBuffer \|string, options?: { offset?: number; length?: number; position?: number; encoding?: string; }): Promise<number>; write(buffer: ArrayBuffer \|string, callback: AsyncCallback<number>): void; write(buffer: ArrayBuffer \|string, options: { offset?: number; length?: number; position?: number; encoding?: string; }, callback: AsyncCallback<number>): void;	Added
ohos.fileio	Stream	flush(): Promise<void>; flush(callback: AsyncCallback<void>): void;	Added
ohos.fileio	Stream	close(): Promise<void>; close(callback: AsyncCallback<void>): void;	Added
ohos.fileio	Dir	close(): Promise<void>; close(callback: AsyncCallback<void>): void;	Added
ohos.fileio	Dir	read(): Promise<Dirent>; read(callback: AsyncCallback<Dirent>): void;	Added
ohos.fileio	fileIO	createWatcher(filename: string, events: number, callback: AsyncCallback<number>): Watcher;	Added
ohos.fileio	fileIO	write(fd: number, buffer: ArrayBuffer \|string, options?: { offset?: number; length?: number; position?: number; encoding?: string; }): Promise<number>; write(fd: number, buffer: ArrayBuffer \|string, callback: AsyncCallback<number>): void; write(fd: number, buffer: ArrayBuffer \|string, options: { offset?: number; length?: number; position?: number; encoding?: string; }, callback: AsyncCallback<number>): void;	Added
ohos.fileio	fileIO	unlink(path: string): Promise<void>; unlink(path: string, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	truncate(path: string, len?: number): Promise<void>; truncate(path: string, callback: AsyncCallback<void>): void; truncate(path: string, len: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	symlinkSync(target: string, srcPath: string): void;	Added
ohos.fileio	fileIO	symlink(target: string, srcPath: string): Promise<void>; symlink(target: string, srcPath: string, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	stat(path: string): Promise<Stat>; stat(path: string, callback: AsyncCallback<Stat>): void;	Added
ohos.fileio	fileIO	rmdir(path: string): Promise<void>; rmdir(path: string, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	rename(oldPath: string, newPath: string): Promise<void>; rename(oldPath: string, newPath: string, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	read(fd: number, buffer: ArrayBuffer, options?: { offset?: number; length?: number; position?: number; }): Promise<ReadOut> read(fd: number, buffer: ArrayBuffer, callback: AsyncCallback<ReadOut>): void; read(fd: number, buffer: ArrayBuffer, options: { offset?: number; length?: number; position?: number; }, callback: AsyncCallback<ReadOut>): void;	Added
ohos.fileio	fileIO	readTextSync(filePath: string, options?: { position?: number; length?: number; encoding?: string; }): string;	Added
ohos.fileio	fileIO	readText(filePath: string, options?: { position?: number; length?: number; encoding?: string; }): Promise<string>; readText(filePath: string, options: { position?: number; length?: number; encoding?: string; }, callback: AsyncCallback<string>): void;	Added
ohos.fileio	fileIO	opendir(path: string): Promise<Dir>; opendir(path: string, callback: AsyncCallback<Dir>): void;	Added
ohos.fileio	fileIO	open(path: string, flags?: number, mode?: number): Promise<number>; open(path: string, callback: AsyncCallback<number>): void; open(path: string, flags: number, callback: AsyncCallback<number>): void; open(path: string, flags: number, mode: number, callback: AsyncCallback<number>): void;	Added
ohos.fileio	fileIO	mkdtempSync(prefix: string): string;	Added
ohos.fileio	fileIO	mkdtemp(prefix: string): Promise<string>; mkdtemp(prefix: string, callback: AsyncCallback<string>): void;	Added
ohos.fileio	fileIO	mkdir(path: string, mode?: number): Promise<void>; mkdir(path: string, callback: AsyncCallback<void>): void; mkdir(path: string, mode: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	lstatSync(path: string): Stat;	Added
ohos.fileio	fileIO	lstat(path: string): Promise<Stat>; lstat(path: string, callback: AsyncCallback<Stat>): void;	Added
ohos.fileio	fileIO	lchownSync(path: string, uid: number, gid: number): void;	Added
ohos.fileio	fileIO	lchown(path: string, uid: number, gid: number): Promise<void>; lchown(path: string, uid: number, gid: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	hash(path: string, algorithm: string): Promise<string>; hash(path: string, algorithm: string, callback: AsyncCallback<string>): void;	Added
ohos.fileio	fileIO	fdopenStream(fd: number, mode: string): Promise<Stream>; fdopenStream(fd: number, mode: string, callback: AsyncCallback<Stream>): void;	Added
ohos.fileio	fileIO	fchmod(fd: number, mode: number): Promise<void>; fchmod(fd: number, mode: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	fchown(fd: number, uid: number, gid: number): Promise<void>; fchown(fd: number, uid: number, gid: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	fdatasyncSync(fd: number): void;	Added
ohos.fileio	fileIO	fdatasync(fd: number): Promise<void>; fdatasync(fd: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	fstat(fd: number): Promise<Stat>; fstat(fd: number, callback: AsyncCallback<Stat>): void;	Added
ohos.fileio	fileIO	fsync(fd: number): Promise<void>; fsync(fd: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	ftruncate(fd: number, len?: number): Promise<void>; ftruncate(fd: number, callback: AsyncCallback<void>): void; ftruncate(fd: number, len: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	chmod(path: string, mode: number): Promise<void>; chmod(path: string, mode: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	chown(path: string, uid: number, gid: number): Promise<void>; chown(path: string, uid: number, gid: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	createStream(path: string, mode: string): Promise<Stream>; createStream(path: string, mode: string, callback: AsyncCallback<Stream>): void;	Added
ohos.fileio	fileIO	copyFile(src: string \|number, dest: string \|number, mode?: number): Promise<void>; copyFile(src: string \|number, dest: string \|number, callback: AsyncCallback<void>): void; copyFile(src: string \|number, dest: string \|number, mode: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	close(fd: number): Promise<void>; close(fd: number, callback: AsyncCallback<void>): void;	Added
ohos.fileio	fileIO	access(path: string, mode?: number): Promise<void>; access(path: string, callback: AsyncCallback<void>): void; access(path: string, mode: number, callback: AsyncCallback<void>): void;	Added
ohos.document	document	show(uri: string, type: string): Promise<void>; show(uri: string, type: string, callback: AsyncCallback<void>): void;	Added
ohos.document	document	choose(types?: string[]): Promise<string>; choose(callback: AsyncCallback<string>): void; choose(types: string[], callback: AsyncCallback<string>): void;	Added