reorg: move JS ops implementations to cli/js/ops/, part 3 (#4302)

Following JS ops were moved to separate files in cli/js/ops directory:
- net
- tls
- fs

cli/js/ops/net.ts

@@ -0,0 +1,117 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+import { sendSync, sendAsync } from "./dispatch_json.ts";
+
+export type Transport = "tcp" | "udp";
+// TODO support other types:
+// export type Transport = "tcp" | "tcp4" | "tcp6" | "unix" | "unixpacket";
+
+export enum ShutdownMode {
+  // See http://man7.org/linux/man-pages/man2/shutdown.2.html
+  // Corresponding to SHUT_RD, SHUT_WR, SHUT_RDWR
+  Read = 0,
+  Write,
+  ReadWrite // unused
+}
+
+/** Shut down socket send and receive operations.
+ *
+ * Matches behavior of POSIX shutdown(3).
+ *
+ *       const listener = Deno.listen({ port: 80 });
+ *       const conn = await listener.accept();
+ *       Deno.shutdown(conn.rid, Deno.ShutdownMode.Write);
+ */
+export function shutdown(rid: number, how: ShutdownMode): void {
+  sendSync("op_shutdown", { rid, how });
+}
+
+interface AcceptResponse {
+  rid: number;
+  localAddr: {
+    hostname: string;
+    port: number;
+    transport: Transport;
+  };
+  remoteAddr: {
+    hostname: string;
+    port: number;
+    transport: Transport;
+  };
+}
+
+export async function accept(rid: number): Promise<AcceptResponse> {
+  return await sendAsync("op_accept", { rid });
+}
+
+export interface ListenRequest {
+  transport: Transport;
+  hostname: string;
+  port: number;
+}
+
+interface ListenResponse {
+  rid: number;
+  localAddr: {
+    hostname: string;
+    port: number;
+    transport: Transport;
+  };
+}
+
+export function listen(args: ListenRequest): ListenResponse {
+  return sendSync("op_listen", args);
+}
+
+interface ConnectResponse {
+  rid: number;
+  localAddr: {
+    hostname: string;
+    port: number;
+    transport: Transport;
+  };
+  remoteAddr: {
+    hostname: string;
+    port: number;
+    transport: Transport;
+  };
+}
+
+export interface ConnectRequest {
+  transport: Transport;
+  hostname: string;
+  port: number;
+}
+
+export async function connect(args: ConnectRequest): Promise<ConnectResponse> {
+  return await sendAsync("op_connect", args);
+}
+
+interface ReceiveResponse {
+  size: number;
+  remoteAddr: {
+    hostname: string;
+    port: number;
+    transport: Transport;
+  };
+}
+
+export async function receive(
+  rid: number,
+  zeroCopy: Uint8Array
+): Promise<ReceiveResponse> {
+  return await sendAsync("op_receive", { rid }, zeroCopy);
+}
+
+export interface SendRequest {
+  rid: number;
+  hostname: string;
+  port: number;
+  transport: Transport;
+}
+
+export async function send(
+  args: SendRequest,
+  zeroCopy: Uint8Array
+): Promise<void> {
+  await sendAsync("op_send", args, zeroCopy);
+}