6a1a3a101e
This CL adds tracing scopes for the various cppgc classes. Scopes use TRACE_EVENT_BEGIN and TRACE_EVENT_END macros to report trace events. To do so they need to include trace-event.h. For unified heap builds, trace-event.h forwards to v8's src/tracing/trace-event.h. For other builds, trace-event.h provides a subset of src/tracing/trace-event.h that covers just the parts used by cppgc. This CL covers what we need for traces and blink gc metrics (up to renaming events from BlinkGC.* to CppGC.*). UMA and UKM are not yet handled. Bug: chromium:1056170 Change-Id: Id92e84b27259ff0aadae7692f3d79d30896fb8e7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2540548 Commit-Queue: Omer Katz <omerkatz@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#71284}
67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
// Copyright 2020 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef INCLUDE_CPPGC_DEFAULT_PLATFORM_H_
|
|
#define INCLUDE_CPPGC_DEFAULT_PLATFORM_H_
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "cppgc/platform.h"
|
|
#include "libplatform/libplatform.h"
|
|
#include "v8config.h" // NOLINT(build/include_directory)
|
|
|
|
namespace cppgc {
|
|
|
|
/**
|
|
* Platform provided by cppgc. Uses V8's DefaultPlatform provided by
|
|
* libplatform internally. Exception: `GetForegroundTaskRunner()`, see below.
|
|
*/
|
|
class V8_EXPORT DefaultPlatform : public Platform {
|
|
public:
|
|
using IdleTaskSupport = v8::platform::IdleTaskSupport;
|
|
explicit DefaultPlatform(
|
|
int thread_pool_size = 0,
|
|
IdleTaskSupport idle_task_support = IdleTaskSupport::kDisabled,
|
|
std::unique_ptr<TracingController> tracing_controller = {})
|
|
: v8_platform_(v8::platform::NewDefaultPlatform(
|
|
thread_pool_size, idle_task_support,
|
|
v8::platform::InProcessStackDumping::kDisabled,
|
|
std::move(tracing_controller))) {}
|
|
|
|
cppgc::PageAllocator* GetPageAllocator() override {
|
|
return v8_platform_->GetPageAllocator();
|
|
}
|
|
|
|
double MonotonicallyIncreasingTime() override {
|
|
return v8_platform_->MonotonicallyIncreasingTime();
|
|
}
|
|
|
|
std::shared_ptr<cppgc::TaskRunner> GetForegroundTaskRunner() override {
|
|
// V8's default platform creates a new task runner when passed the
|
|
// `v8::Isolate` pointer the first time. For non-default platforms this will
|
|
// require getting the appropriate task runner.
|
|
return v8_platform_->GetForegroundTaskRunner(kNoIsolate);
|
|
}
|
|
|
|
std::unique_ptr<cppgc::JobHandle> PostJob(
|
|
cppgc::TaskPriority priority,
|
|
std::unique_ptr<cppgc::JobTask> job_task) override {
|
|
return v8_platform_->PostJob(priority, std::move(job_task));
|
|
}
|
|
|
|
TracingController* GetTracingController() override {
|
|
return v8_platform_->GetTracingController();
|
|
}
|
|
|
|
protected:
|
|
static constexpr v8::Isolate* kNoIsolate = nullptr;
|
|
|
|
std::unique_ptr<v8::Platform> v8_platform_;
|
|
};
|
|
|
|
} // namespace cppgc
|
|
|
|
#endif // INCLUDE_CPPGC_DEFAULT_PLATFORM_H_
|