mirror of https://github.com/electron/electron
86 lines
4.4 KiB
Diff
86 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 42c94f71f09cf9067bac9fd9004dda36708ec441..07c014a28ed1ef5878a50fbb194e38fe762361e9 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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@@ -417,6 +417,11 @@ 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 4547a080e06759467e6736c6a76fe55a93a6b3b8..15d304d96426bd7e9c6269feb3cbe66294f3934d 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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@@ -875,6 +875,12 @@ 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 17c01a1f03ad4d4fa8a9783a00e159fff7c67940..1bfec2280e6d1f5cb5c157d237069bdee44b9a5d 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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@@ -194,6 +194,7 @@ 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 f2be7de2e13b7cd8e4b3cae47656109d31049502..8c2fb19e53b55d578134fac78d8149bcde0baeed 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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@@ -664,6 +664,7 @@ 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 41729a86dab4be0350a4a935ae984c477304dfea..286a9aa7f8041d3be2c8675c6e5371de6a58af7f 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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@@ -762,6 +762,12 @@ void WorkerThread::PrepareForShutdownOnWorkerThread() {
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}
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pause_handle_.reset();
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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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