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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_HEAP_HEAP_TEST_PLATFORM_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_HEAP_HEAP_TEST_PLATFORM_H_
#include <memory>
#include "v8/include/v8-platform.h"
namespace blink {
// Tests do not require that tasks can actually run, just that they can posted.
class HeapTestingMockTaskRunner final : public v8::TaskRunner {
public:
bool IdleTasksEnabled() override { return false; }
bool NonNestableTasksEnabled() const override { return false; }
bool NonNestableDelayedTasksEnabled() const override { return false; }
private:
void PostTaskImpl(std::unique_ptr<v8::Task> task,
const v8::SourceLocation& location) override {}
void PostNonNestableTaskImpl(std::unique_ptr<v8::Task> task,
const v8::SourceLocation& location) override {}
void PostDelayedTaskImpl(std::unique_ptr<v8::Task> task,
double delay_in_seconds,
const v8::SourceLocation& location) override {}
void PostNonNestableDelayedTaskImpl(
std::unique_ptr<v8::Task> task,
double delay_in_seconds,
const v8::SourceLocation& location) override {}
void PostIdleTaskImpl(std::unique_ptr<v8::IdleTask> task,
const v8::SourceLocation& location) override {}
};
class HeapTestingPlatformAdapter final : public v8::Platform {
public:
explicit HeapTestingPlatformAdapter(v8::Platform* platform)
: platform_(platform),
task_runner_(std::make_shared<HeapTestingMockTaskRunner>()) {}
HeapTestingPlatformAdapter(const HeapTestingPlatformAdapter&) = delete;
HeapTestingPlatformAdapter& operator=(const HeapTestingPlatformAdapter&) =
delete;
v8::PageAllocator* GetPageAllocator() final {
return platform_->GetPageAllocator();
}
void OnCriticalMemoryPressure() final {
platform_->OnCriticalMemoryPressure();
}
int NumberOfWorkerThreads() final {
return platform_->NumberOfWorkerThreads();
}
std::shared_ptr<v8::TaskRunner> GetForegroundTaskRunner(
v8::Isolate* isolate,
v8::TaskPriority priority) final {
// Provides task runner that allows for incremental tasks even in detached
// mode.
return task_runner_;
}
void PostTaskOnWorkerThreadImpl(v8::TaskPriority priority,
std::unique_ptr<v8::Task> task,
const v8::SourceLocation& location) final {
platform_->PostTaskOnWorkerThread(priority, std::move(task), location);
}
void PostDelayedTaskOnWorkerThreadImpl(
v8::TaskPriority priority,
std::unique_ptr<v8::Task> task,
double delay_in_seconds,
const v8::SourceLocation& location) final {
platform_->PostDelayedTaskOnWorkerThread(priority, std::move(task), delay_in_seconds, location);
}
bool IdleTasksEnabled(v8::Isolate* isolate) final {
return platform_->IdleTasksEnabled(isolate);
}
std::unique_ptr<v8::JobHandle> CreateJobImpl(
v8::TaskPriority priority,
std::unique_ptr<v8::JobTask> job_task,
const v8::SourceLocation& location) final {
return platform_->CreateJob(priority, std::move(job_task));
}
double MonotonicallyIncreasingTime() final {
return platform_->MonotonicallyIncreasingTime();
}
double CurrentClockTimeMillis() final {
return platform_->CurrentClockTimeMillis();
}
StackTracePrinter GetStackTracePrinter() final {
return platform_->GetStackTracePrinter();
}
v8::TracingController* GetTracingController() final {
return platform_->GetTracingController();
}
void DumpWithoutCrashing() final { platform_->DumpWithoutCrashing(); }
private:
v8::Platform* platform_;
std::shared_ptr<v8::TaskRunner> task_runner_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_HEAP_HEAP_TEST_PLATFORM_H_
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