src/vs/workbench/api/browser/mainThreadFileSystem.ts/RemoteFileSystemProvider/read
class RemoteFileSystemProvider:	read(fd: number, pos: number, data: Uint8Array, offset: number, length: number): Promise<number> {
		return this._proxy.$read(this._handle, fd, pos, length).then(readData => {
			data.set(readData.buffer, offset);
			return readData.byteLength;
		});
	}