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workers: basic event loop (#3828)

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* establish basic event loop for workers
* make "self.close()" inside worker
* remove "runWorkerMessageLoop() - instead manually call global function 
  in Rust when message arrives. This is done in preparation for structured clone
* refactor "WorkerChannel" and use distinct structs for internal 
  and external channels;  "WorkerChannelsInternal" and "WorkerHandle"
* move "State.worker_channels_internal" to "Worker.internal_channels"
* add "WorkerEvent" enum for child->host communication; 
  currently "Message(Buf)" and  "Error(ErrBox)" variants are supported
* add tests for nested workers
* add tests for worker throwing error on startup
This commit is contained in:
Bartek Iwańczuk 2020-02-11 10:04:59 +01:00 • committed by GitHub
parent 81905a867e
commit 79b3bc05d6
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26 changed files with 779 additions and 517 deletions
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7
cli/js/compiler.ts
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@ -40,10 +40,7 @@ import { Diagnostic } from "./diagnostics.ts";
import { fromTypeScriptDiagnostic } from "./diagnostics_util.ts";
import { assert } from "./util.ts";
import * as util from "./util.ts";
import {
bootstrapWorkerRuntime,
runWorkerMessageLoop
} from "./runtime_worker.ts";
import { bootstrapWorkerRuntime } from "./runtime_worker.ts";
interface CompilerRequestCompile {
type: CompilerRequestType.Compile;
@ -340,13 +337,11 @@ async function wasmCompilerOnMessage({
function bootstrapTsCompilerRuntime(): void {
bootstrapWorkerRuntime("TS");
globalThis.onmessage = tsCompilerOnMessage;
runWorkerMessageLoop();
}
function bootstrapWasmCompilerRuntime(): void {
bootstrapWorkerRuntime("WASM");
globalThis.onmessage = wasmCompilerOnMessage;
runWorkerMessageLoop();
}
Object.defineProperties(globalThis, {