Class DirFile

src/kernel/file.ts:169–247

}

export class DirFile implements IFile {
	kernel:   IKernel;
	path:     string;
	off:      number;

	refCount: number;

	constructor(kernel: IKernel, path: string) {
		this.kernel = kernel;
		this.path = path;
		this.off = 0;
		this.refCount = 1;
	}

	read(buf: Buffer, pos: number, cb: (err: any, len?: number) => void): void {
		setTimeout(cb, 0, 'cant read from a dir -- use readdir');
	}

	write(buf: Buffer, pos: number, cb: (err: any, len?: number) => void): void {
		setTimeout(cb, 0, 'cant write to a dir');
	}

	stat(cb: (err: any, stats: any) => void): void {
		this.kernel.fs.stat(this.path, cb);
	}

	readdir(cb: (err: any, files: string[]) => void): void {
		this.kernel.fs.readdir(this.path, cb);
	}

	llseek(offhi: number, offlo: number, whence: number, cb: (err: number, off: number) => void): void {
		console.log('TODO: dir.llseek');
		cb(0, 0);
	}

	getdents(buf: Uint8Array, cb: (err: number) => void): void {
		this.readdir((derr: any, files: string[]) => {
			if (derr) {
				console.log('readdir: ' + derr);
				cb(-EFAULT);
				return;
			}
			files = files.filter((s: string) => s !== '.deletedFiles.log');
			files.sort();
			files = files.slice(this.off);

			let dents = files.map((n) => new fs.Dirent(-1, fs.DT.UNKNOWN, n));
			let view = new DataView(buf.buffer, buf.byteOffset, buf.byteLength);
			let voff = 0;

			for (let i = 0; i < dents.length; i++) {
				let dent = dents[i];
				if (voff + dent.reclen > buf.byteLength)
					break;
				let [len, err] = Marshal(view, voff, dent, fs.DirentDef);
				if (err) {
					console.log('dirent marshal failed: ' + err);
					cb(-EFAULT);