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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/worklet/animation_and_paint_worklet_thread.h"
#include "base/memory/ptr_util.h"
#include "third_party/blink/renderer/core/workers/global_scope_creation_params.h"
#include "third_party/blink/renderer/core/workers/worker_backing_thread.h"
#include "third_party/blink/renderer/core/workers/worklet_thread_holder.h"
#include "third_party/blink/renderer/modules/animationworklet/animation_worklet_global_scope.h"
#include "third_party/blink/renderer/modules/csspaint/paint_worklet_global_scope.h"
#include "third_party/blink/renderer/platform/cross_thread_functional.h"
#include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h"
#include "third_party/blink/renderer/platform/web_thread_supporting_gc.h"
namespace blink {
namespace {
unsigned s_ref_count = 0;
} // namespace
std::unique_ptr<AnimationAndPaintWorkletThread>
AnimationAndPaintWorkletThread::CreateForAnimationWorklet(
WorkerReportingProxy& worker_reporting_proxy) {
TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("animation-worklet"),
"AnimationAndPaintWorkletThread::CreateForAnimationWorklet");
DCHECK(IsMainThread());
return base::WrapUnique(new AnimationAndPaintWorkletThread(
WorkletType::ANIMATION_WORKLET, worker_reporting_proxy));
}
std::unique_ptr<AnimationAndPaintWorkletThread>
AnimationAndPaintWorkletThread::CreateForPaintWorklet(
WorkerReportingProxy& worker_reporting_proxy) {
TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("paint-worklet"),
"AnimationAndPaintWorkletThread::CreateForPaintWorklet");
DCHECK(IsMainThread());
return base::WrapUnique(new AnimationAndPaintWorkletThread(
WorkletType::PAINT_WORKLET, worker_reporting_proxy));
}
template class WorkletThreadHolder<AnimationAndPaintWorkletThread>;
AnimationAndPaintWorkletThread::AnimationAndPaintWorkletThread(
WorkletType worklet_type,
WorkerReportingProxy& worker_reporting_proxy)
: WorkerThread(worker_reporting_proxy), worklet_type_(worklet_type) {
DCHECK(IsMainThread());
if (++s_ref_count == 1) {
EnsureSharedBackingThread();
}
}
AnimationAndPaintWorkletThread::~AnimationAndPaintWorkletThread() {
DCHECK(IsMainThread());
if (--s_ref_count == 0) {
ClearSharedBackingThread();
}
}
WorkerBackingThread& AnimationAndPaintWorkletThread::GetWorkerBackingThread() {
return *WorkletThreadHolder<AnimationAndPaintWorkletThread>::GetInstance()
->GetThread();
}
static void CollectAllGarbageOnThread(WaitableEvent* done_event) {
blink::ThreadState::Current()->CollectAllGarbage();
done_event->Signal();
}
void AnimationAndPaintWorkletThread::CollectAllGarbage() {
DCHECK(IsMainThread());
WaitableEvent done_event;
auto* holder =
WorkletThreadHolder<AnimationAndPaintWorkletThread>::GetInstance();
if (!holder)
return;
holder->GetThread()->BackingThread().PostTask(
FROM_HERE, CrossThreadBind(&CollectAllGarbageOnThread,
CrossThreadUnretained(&done_event)));
done_event.Wait();
}
WorkerOrWorkletGlobalScope*
AnimationAndPaintWorkletThread::CreateWorkerGlobalScope(
std::unique_ptr<GlobalScopeCreationParams> creation_params) {
switch (worklet_type_) {
case WorkletType::ANIMATION_WORKLET: {
TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("animation-worklet"),
"AnimationAndPaintWorkletThread::CreateWorkerGlobalScope");
return AnimationWorkletGlobalScope::Create(std::move(creation_params),
this);
}
case WorkletType::PAINT_WORKLET:
TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("paint-worklet"),
"AnimationAndPaintWorkletThread::CreateWorkerGlobalScope");
return PaintWorkletGlobalScope::Create(std::move(creation_params), this);
};
}
void AnimationAndPaintWorkletThread::EnsureSharedBackingThread() {
DCHECK(IsMainThread());
WorkletThreadHolder<AnimationAndPaintWorkletThread>::EnsureInstance(
ThreadCreationParams(WebThreadType::kAnimationAndPaintWorkletThread));
}
void AnimationAndPaintWorkletThread::ClearSharedBackingThread() {
DCHECK(IsMainThread());
DCHECK_EQ(s_ref_count, 0u);
WorkletThreadHolder<AnimationAndPaintWorkletThread>::ClearInstance();
}
// static
WorkletThreadHolder<AnimationAndPaintWorkletThread>*
AnimationAndPaintWorkletThread::GetWorkletThreadHolderForTesting() {
return WorkletThreadHolder<AnimationAndPaintWorkletThread>::GetInstance();
}
} // namespace blink
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