e017d8714e
Co-authored-by: Shelley Vohr <shelley.vohr@gmail.com> Co-authored-by: Jeremy Rose <jeremya@chromium.org> Co-authored-by: John Kleinschmidt <jkleinsc@github.com>
85 lines
4.4 KiB
Diff
85 lines
4.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Cheng Zhao <zcbenz@gmail.com>
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Date: Thu, 20 Sep 2018 17:47:12 -0700
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Subject: worker_context_will_destroy.patch
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This adds a hook for worker context destruction, which we use in Electron to
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shutdown node integration in the worker if relevant.
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An attempt to upstream this was made, but rejected:
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https://chromium-review.googlesource.com/c/chromium/src/+/1954347
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diff --git a/content/public/renderer/content_renderer_client.h b/content/public/renderer/content_renderer_client.h
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index e9def973e93c0456afe8c2829b01b0592e87e45a..c311fd6e4094c56698575c492042644fc5bccf28 100644
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--- a/content/public/renderer/content_renderer_client.h
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+++ b/content/public/renderer/content_renderer_client.h
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@@ -381,6 +381,11 @@ class CONTENT_EXPORT ContentRendererClient {
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virtual void DidInitializeWorkerContextOnWorkerThread(
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v8::Local<v8::Context> context) {}
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+ // Notifies that a worker context will be destroyed. This function is called
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+ // from the worker thread.
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+ virtual void WillDestroyWorkerContextOnWorkerThread(
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+ v8::Local<v8::Context> context) {}
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+
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// Overwrites the given URL to use an HTML5 embed if possible.
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// An empty URL is returned if the URL is not overriden.
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virtual GURL OverrideFlashEmbedWithHTML(const GURL& url);
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diff --git a/content/renderer/renderer_blink_platform_impl.cc b/content/renderer/renderer_blink_platform_impl.cc
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index 1fa8724436170413c0256afb5d3a8bb154493083..3e3ca9c7b908044c27343d879d084c8a883132f2 100644
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--- a/content/renderer/renderer_blink_platform_impl.cc
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+++ b/content/renderer/renderer_blink_platform_impl.cc
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@@ -891,6 +891,12 @@ void RendererBlinkPlatformImpl::WillStopWorkerThread() {
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WorkerThreadRegistry::Instance()->WillStopCurrentWorkerThread();
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}
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+void RendererBlinkPlatformImpl::WorkerContextWillDestroy(
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+ const v8::Local<v8::Context>& worker) {
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+ GetContentClient()->renderer()->WillDestroyWorkerContextOnWorkerThread(
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+ worker);
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+}
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+
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void RendererBlinkPlatformImpl::WorkerContextCreated(
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const v8::Local<v8::Context>& worker) {
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GetContentClient()->renderer()->DidInitializeWorkerContextOnWorkerThread(
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diff --git a/content/renderer/renderer_blink_platform_impl.h b/content/renderer/renderer_blink_platform_impl.h
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index 0bbe077c86a74e6fb3ce52969fad49a3319283e0..de42716cc1969e485a40cf59f735e48e1948443b 100644
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--- a/content/renderer/renderer_blink_platform_impl.h
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+++ b/content/renderer/renderer_blink_platform_impl.h
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@@ -191,6 +191,7 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
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void DidStartWorkerThread() override;
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void WillStopWorkerThread() override;
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void WorkerContextCreated(const v8::Local<v8::Context>& worker) override;
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+ void WorkerContextWillDestroy(const v8::Local<v8::Context>& worker) override;
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bool AllowScriptExtensionForServiceWorker(
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const blink::WebSecurityOrigin& script_origin) override;
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blink::ProtocolHandlerSecurityLevel GetProtocolHandlerSecurityLevel()
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diff --git a/third_party/blink/public/platform/platform.h b/third_party/blink/public/platform/platform.h
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index 358f3c1d004c93096a78955e850f8dd0b473b0a8..5a9ae1626c22de04080ad8e6d613dd183632922e 100644
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--- a/third_party/blink/public/platform/platform.h
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+++ b/third_party/blink/public/platform/platform.h
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@@ -673,6 +673,7 @@ class BLINK_PLATFORM_EXPORT Platform {
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virtual void DidStartWorkerThread() {}
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virtual void WillStopWorkerThread() {}
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virtual void WorkerContextCreated(const v8::Local<v8::Context>& worker) {}
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+ virtual void WorkerContextWillDestroy(const v8::Local<v8::Context>& worker) {}
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virtual bool AllowScriptExtensionForServiceWorker(
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const WebSecurityOrigin& script_origin) {
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return false;
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diff --git a/third_party/blink/renderer/core/workers/worker_thread.cc b/third_party/blink/renderer/core/workers/worker_thread.cc
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index 4fc91c606d0cc954c08db087abfe3eb7371faea1..bdf96c40ba7b6aa44d0e504df6f422e53f3ecbb0 100644
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--- a/third_party/blink/renderer/core/workers/worker_thread.cc
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+++ b/third_party/blink/renderer/core/workers/worker_thread.cc
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@@ -739,6 +739,12 @@ void WorkerThread::PrepareForShutdownOnWorkerThread() {
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nested_runner_->QuitNow();
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}
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+ {
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+ v8::HandleScope handle_scope(GetIsolate());
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+ Platform::Current()->WorkerContextWillDestroy(
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+ GlobalScope()->ScriptController()->GetContext());
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+ }
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+
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if (WorkerThreadDebugger* debugger = WorkerThreadDebugger::From(GetIsolate()))
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debugger->WorkerThreadDestroyed(this);
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