Minimal Worker support (#1476)

This adds the ability to spawn additional Isolates from Rust and send
and receive messages from them. This is preliminary work to support
running the typescript compiler in a separate isolate and thus support
native ES modules. Ref #975.

1 files changed, 15 insertions, 0 deletions

diff --git a/src/msg.fbs b/src/msg.fbs
index 989fafd0b..a9afb195f 100644
--- a/src/msg.fbs
+++ b/src/msg.fbs
@@ -1,6 +1,9 @@
 union Any {
   Start,
   StartRes,
+  WorkerGetMessage,
+  WorkerGetMessageRes,
+  WorkerPostMessage,
   CodeFetch,
   CodeFetchRes,
   CodeCache,
@@ -149,6 +152,18 @@ table StartRes {
   v8_version: string;
 }
 
+table WorkerGetMessage {
+  unused: int8;
+}
+
+table WorkerGetMessageRes {
+  data: [ubyte];
+}
+
+table WorkerPostMessage {
+  // data passed thru the zero-copy data parameter.
+}
+
 table CodeFetch {
   specifier: string;
   referrer: string;