mirror of
https://github.com/encounter/engine.git
synced 2026-03-30 11:09:55 -07:00
Chinmay Garde
a0be8779ff
The thread on which the runner services `CreateApplication` calls is now called `io.flutter.runner.<aot|jit>`. Each application will launch four threads named `<application_name>.<platform|ui|io|gpu>`. `fx shell ps -T` is an easy way to tell which runners are hosting which applications.
120 lines
3.9 KiB
C++
120 lines
3.9 KiB
C++
// Copyright 2018 The Fuchsia 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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#include "application_runner.h"
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#include <zircon/types.h>
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#include <sstream>
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#include <utility>
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#include "flutter/lib/ui/text/font_collection.h"
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#include "fuchsia_font_manager.h"
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#include "lib/icu_data/cpp/icu_data.h"
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#include "third_party/flutter/runtime/dart_vm.h"
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#include "third_party/skia/include/core/SkGraphics.h"
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namespace flutter {
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static void SetProcessName() {
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std::stringstream stream;
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stream << "io.flutter.runner.";
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if (blink::DartVM::IsRunningPrecompiledCode()) {
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stream << "aot";
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} else {
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stream << "jit";
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}
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const auto name = stream.str();
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zx::process::self().set_property(ZX_PROP_NAME, name.c_str(), name.size());
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}
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static void SetThreadName(const std::string& thread_name) {
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zx::thread::self().set_property(ZX_PROP_NAME, thread_name.c_str(),
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thread_name.size());
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}
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ApplicationRunner::ApplicationRunner(fxl::Closure on_termination_callback)
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: on_termination_callback_(std::move(on_termination_callback)),
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host_context_(component::ApplicationContext::CreateFromStartupInfo()) {
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SkGraphics::Init();
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SetupICU();
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SetupGlobalFonts();
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SetProcessName();
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SetThreadName("io.flutter.runner.main");
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host_context_->outgoing_services()->AddService<component::ApplicationRunner>(
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std::bind(&ApplicationRunner::RegisterApplication, this,
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std::placeholders::_1));
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active_applications_bindings_.set_empty_set_handler(
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[this]() { FireTerminationCallbackIfNecessary(); });
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}
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ApplicationRunner::~ApplicationRunner() {
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host_context_->outgoing_services()
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->RemoveService<component::ApplicationRunner>();
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}
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void ApplicationRunner::RegisterApplication(
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fidl::InterfaceRequest<component::ApplicationRunner> request) {
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active_applications_bindings_.AddBinding(this, std::move(request));
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}
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void ApplicationRunner::StartApplication(
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component::ApplicationPackage package,
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component::ApplicationStartupInfo startup_info,
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fidl::InterfaceRequest<component::ApplicationController> controller) {
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auto thread_application_pair =
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Application::Create(*this, // delegate
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std::move(package), // application pacakge
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std::move(startup_info), // startup info
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std::move(controller) // controller request
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);
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active_applications_[thread_application_pair.second.get()] =
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std::move(thread_application_pair);
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}
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void ApplicationRunner::OnApplicationTerminate(const Application* application) {
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active_applications_.erase(application);
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FireTerminationCallbackIfNecessary();
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}
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void ApplicationRunner::SetupICU() {
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if (!icu_data::Initialize(host_context_.get())) {
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FXL_LOG(ERROR) << "Could not initialize ICU data.";
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}
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}
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void ApplicationRunner::SetupGlobalFonts() {
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// Fuchsia does not have per application (shell) fonts. Instead, all fonts
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// must be obtained from the font provider.
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auto process_font_collection =
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blink::FontCollection::ForProcess().GetFontCollection();
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// Connect to the system font provider.
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fonts::FontProviderSyncPtr sync_font_provider;
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host_context_->ConnectToEnvironmentService(sync_font_provider.NewRequest());
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// Set the default font manager.
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process_font_collection->SetDefaultFontManager(
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sk_make_sp<txt::FuchsiaFontManager>(std::move(sync_font_provider)));
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}
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void ApplicationRunner::FireTerminationCallbackIfNecessary() {
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// We have no reason to exist if:
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// 1: No previously launched applications are running.
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// 2: No bindings exist that may require launching more applications.
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if (on_termination_callback_ && active_applications_.size() == 0 &&
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active_applications_bindings_.size() == 0) {
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on_termination_callback_();
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}
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}
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} // namespace flutter
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