Import ts file from prototype without change

From commit 559453cf6cc88283bcf8fdeccd387458f5c63165
Excluding v8worker.d.ts, main.ts, and deno.d.ts.

Updates tslint.json to be original settings.

1 files changed, 73 insertions, 0 deletions

diff --git a/js/dispatch.ts b/js/dispatch.ts
new file mode 100644
index 000000000..a83e5a0e5
--- /dev/null
+++ b/js/dispatch.ts
@@ -0,0 +1,73 @@
+// Copyright 2018 Ryan Dahl <ry@tinyclouds.org>
+// All rights reserved. MIT License.
+import { typedArrayToArrayBuffer } from "./util";
+import { _global } from "./globals";
+import { deno as pb } from "./msg.pb";
+
+export type MessageCallback = (msg: Uint8Array) => void;
+//type MessageStructCallback = (msg: pb.IMsg) => void;
+
+const send = V8Worker2.send;
+const channels = new Map<string, MessageCallback[]>();
+
+export function sub(channel: string, cb: MessageCallback): void {
+  let subscribers = channels.get(channel);
+  if (!subscribers) {
+    subscribers = [];
+    channels.set(channel, subscribers);
+  }
+  subscribers.push(cb);
+}
+
+/*
+export function subMsg(channel: string, cb: MessageStructCallback): void {
+  sub(channel, (payload: Uint8Array) => {
+    const msg = pb.Msg.decode(payload);
+    if (msg.error != null) {
+      f.onError(new Error(msg.error));
+    } else {
+      cb(msg);
+    }
+  });
+}
+  */
+
+export function pub(channel: string, payload: Uint8Array): null | ArrayBuffer {
+  const msg = pb.BaseMsg.fromObject({ channel, payload });
+  const ui8 = pb.BaseMsg.encode(msg).finish();
+  const ab = typedArrayToArrayBuffer(ui8);
+  return send(ab);
+}
+
+// Internal version of "pub".
+// TODO add internal version of "sub"
+export function pubInternal(channel: string, obj: pb.IMsg): null | pb.Msg {
+  const msg = pb.Msg.fromObject(obj);
+  const ui8 = pb.Msg.encode(msg).finish();
+  const resBuf = pub(channel, ui8);
+  if (resBuf != null && resBuf.byteLength > 0) {
+    const res = pb.Msg.decode(new Uint8Array(resBuf));
+    if (res != null && res.error != null && res.error.length > 0) {
+      throw Error(res.error);
+    }
+    return res;
+  } else {
+    return null;
+  }
+}
+
+V8Worker2.recv((ab: ArrayBuffer) => {
+  const msg = pb.BaseMsg.decode(new Uint8Array(ab));
+  const subscribers = channels.get(msg.channel);
+  if (subscribers == null) {
+    throw Error(`No subscribers for channel "${msg.channel}".`);
+  }
+
+  for (const subscriber of subscribers) {
+    subscriber(msg.payload);
+  }
+});
+
+// Delete the V8Worker2 from the global object, so that no one else can receive
+// messages.
+_global["V8Worker2"] = null;