f8fa0edf16
Both sample are essentially the same up to string constants since
cppgc's default platform started using libplatform.
The only diff between the sample is whether we call
v8::V8::IntializePlatform or cppgc::InitializeProcess.
Drive-by: replace CPPGC_BUILD_IN_V8 with CPPGC_IS_STANDALONE which is
more descriptive.
Bug: chromium:1056170
Change-Id: I8fdeb59c3345af77f1bccd8b93255ab39b4d3181
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2557516
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71421}
76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef INCLUDE_CPPGC_DEFAULT_PLATFORM_H_
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#define INCLUDE_CPPGC_DEFAULT_PLATFORM_H_
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#include <memory>
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#include <vector>
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#include "cppgc/platform.h"
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#include "libplatform/libplatform.h"
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#include "v8config.h" // NOLINT(build/include_directory)
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namespace cppgc {
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/**
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* Platform provided by cppgc. Uses V8's DefaultPlatform provided by
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* libplatform internally. Exception: `GetForegroundTaskRunner()`, see below.
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*/
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class V8_EXPORT DefaultPlatform : public Platform {
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public:
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/**
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* Use this method instead of 'cppgc::InitializeProcess' when using
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* 'cppgc::DefaultPlatform'. 'cppgc::DefaultPlatform::InitializeProcess'
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* will initialize cppgc and v8 if needed (for non-standalone builds).
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*
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* \param platform DefaultPlatform instance used to initialize cppgc/v8.
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*/
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static void InitializeProcess(DefaultPlatform* platform);
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using IdleTaskSupport = v8::platform::IdleTaskSupport;
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explicit DefaultPlatform(
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int thread_pool_size = 0,
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IdleTaskSupport idle_task_support = IdleTaskSupport::kDisabled,
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std::unique_ptr<TracingController> tracing_controller = {})
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: v8_platform_(v8::platform::NewDefaultPlatform(
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thread_pool_size, idle_task_support,
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v8::platform::InProcessStackDumping::kDisabled,
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std::move(tracing_controller))) {}
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cppgc::PageAllocator* GetPageAllocator() override {
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return v8_platform_->GetPageAllocator();
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}
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double MonotonicallyIncreasingTime() override {
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return v8_platform_->MonotonicallyIncreasingTime();
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}
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std::shared_ptr<cppgc::TaskRunner> GetForegroundTaskRunner() override {
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// V8's default platform creates a new task runner when passed the
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// `v8::Isolate` pointer the first time. For non-default platforms this will
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// require getting the appropriate task runner.
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return v8_platform_->GetForegroundTaskRunner(kNoIsolate);
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}
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std::unique_ptr<cppgc::JobHandle> PostJob(
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cppgc::TaskPriority priority,
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std::unique_ptr<cppgc::JobTask> job_task) override {
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return v8_platform_->PostJob(priority, std::move(job_task));
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}
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TracingController* GetTracingController() override {
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return v8_platform_->GetTracingController();
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}
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protected:
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static constexpr v8::Isolate* kNoIsolate = nullptr;
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std::unique_ptr<v8::Platform> v8_platform_;
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};
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} // namespace cppgc
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#endif // INCLUDE_CPPGC_DEFAULT_PLATFORM_H_
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