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LibWeb: Intentionally leak the main thread JS VM

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This way we avoid doing an expensive full GC on exit.
This commit is contained in:
Andreas Kling
2022-08-25 18:28:39 +02:00
parent a3b2b20782
commit d32f7112dc
1 changed files with 5 additions and 0 deletions
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5
Userland/Libraries/LibWeb/Bindings/MainThreadVM.cpp
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@@ -51,6 +51,11 @@ JS::VM& main_thread_vm()
static RefPtr<JS::VM> vm;
if (!vm) {
vm = JS::VM::create(make<WebEngineCustomData>());
// NOTE: We intentionally leak the main thread JavaScript VM.
// This avoids doing an exhaustive garbage collection on process exit.
vm->ref();
static_cast<WebEngineCustomData*>(vm->custom_data())->event_loop.set_vm(*vm);
// FIXME: Implement 8.1.5.1 HostEnsureCanCompileStrings(callerRealm, calleeRealm), https://html.spec.whatwg.org/multipage/webappapis.html#hostensurecancompilestrings(callerrealm,-calleerealm)