Function readFile

src/piper.js:2817–2836

(path, opts = {})

				return stream.stream_ops.ioctl(stream, cmd, arg);
			},
			readFile(path, opts = {}) {
				opts.flags = opts.flags || 0;
				opts.encoding = opts.encoding || 'binary';
				if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
					throw new Error(`Invalid encoding type "${opts.encoding}"`);
				}
				var ret;
				var stream = FS.open(path, opts.flags);
				var stat = FS.stat(path);
				var length = stat.size;
				var buf = new Uint8Array(length);
				FS.read(stream, buf, 0, length, 0);
				if (opts.encoding === 'utf8') {
					ret = UTF8ArrayToString(buf, 0);
				} else if (opts.encoding === 'binary') {
					ret = buf;
				}
				FS.close(stream);
				return ret;
			},
			writeFile(path, data, opts = {}) {
				opts.flags = opts.flags || 577;
				var stream = FS.open(path, opts.flags, opts.mode);