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// Copyright 2013 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 "services/service_manager/standalone/context.h"
#include <stddef.h>
#include <stdint.h>
#include <utility>
#include <vector>
#include "base/bind.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/json/json_file_value_serializer.h"
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "base/message_loop/message_loop.h"
#include "base/path_service.h"
#include "base/process/process_info.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/sequenced_worker_pool.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "components/tracing/common/tracing_switches.h"
#include "services/catalog/catalog.h"
#include "services/service_manager/connect_params.h"
#include "services/service_manager/connect_util.h"
#include "services/service_manager/runner/common/switches.h"
#include "services/service_manager/runner/host/service_process_launcher.h"
#include "services/service_manager/service_manager.h"
#include "services/service_manager/standalone/tracer.h"
#include "services/service_manager/switches.h"
#include "services/tracing/public/cpp/provider.h"
#include "services/tracing/public/cpp/switches.h"
#include "services/tracing/public/interfaces/constants.mojom.h"
#include "services/tracing/public/interfaces/tracing.mojom.h"
#if defined(OS_MACOSX)
#include "services/service_manager/public/cpp/standalone_service/mach_broker.h"
#endif
namespace base {
class TaskRunner;
}
namespace service_manager {
namespace {
// Used to ensure we only init once.
class ServiceProcessLauncherFactoryImpl : public ServiceProcessLauncherFactory {
public:
ServiceProcessLauncherFactoryImpl(base::TaskRunner* launch_process_runner,
ServiceProcessLauncher::Delegate* delegate)
: launch_process_runner_(launch_process_runner),
delegate_(delegate) {
}
private:
std::unique_ptr<ServiceProcessLauncher> Create(
const base::FilePath& service_path) override {
return base::MakeUnique<ServiceProcessLauncher>(
launch_process_runner_, delegate_, service_path);
}
base::TaskRunner* launch_process_runner_;
ServiceProcessLauncher::Delegate* delegate_;
};
void OnInstanceQuit(const std::string& name, const Identity& identity) {
if (name == identity.name())
base::MessageLoop::current()->QuitWhenIdle();
}
const char kService[] = "service";
} // namespace
Context::Context(
ServiceProcessLauncher::Delegate* service_process_launcher_delegate,
std::unique_ptr<base::Value> catalog_contents)
: main_entry_time_(base::Time::Now()) {
TRACE_EVENT0("service_manager", "Context::Context");
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
bool trace_startup = command_line.HasSwitch(::switches::kTraceStartup);
if (trace_startup) {
tracer_.Start(
command_line.GetSwitchValueASCII(::switches::kTraceStartup),
command_line.GetSwitchValueASCII(::switches::kTraceStartupDuration),
"mojo_runner.trace");
}
blocking_pool_ = new base::SequencedWorkerPool(
kThreadPoolMaxThreads, "blocking_pool", base::TaskPriority::USER_VISIBLE);
std::unique_ptr<ServiceProcessLauncherFactory>
service_process_launcher_factory =
base::MakeUnique<ServiceProcessLauncherFactoryImpl>(
blocking_pool_.get(),
service_process_launcher_delegate);
catalog_.reset(new catalog::Catalog(std::move(catalog_contents)));
service_manager_.reset(
new ServiceManager(std::move(service_process_launcher_factory),
catalog_->TakeService()));
bool enable_stats_collection_bindings =
command_line.HasSwitch(tracing::kEnableStatsCollectionBindings);
if (enable_stats_collection_bindings ||
command_line.HasSwitch(switches::kEnableTracing)) {
Identity source_identity = CreateServiceManagerIdentity();
Identity tracing_identity(tracing::mojom::kServiceName, mojom::kRootUserID);
tracing::mojom::FactoryPtr factory;
BindInterface(service_manager(), source_identity, tracing_identity,
&factory);
provider_.InitializeWithFactory(&factory);
if (command_line.HasSwitch(tracing::kTraceStartup)) {
tracing::mojom::CollectorPtr coordinator;
BindInterface(service_manager(), source_identity, tracing_identity,
&coordinator);
tracer_.StartCollectingFromTracingService(std::move(coordinator));
}
// Record the service manager startup metrics used for performance testing.
if (enable_stats_collection_bindings) {
tracing::mojom::StartupPerformanceDataCollectorPtr collector;
BindInterface(service_manager(), source_identity, tracing_identity,
&collector);
#if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
// CurrentProcessInfo::CreationTime is only defined on some platforms.
const base::Time creation_time = base::CurrentProcessInfo::CreationTime();
collector->SetServiceManagerProcessCreationTime(
creation_time.ToInternalValue());
#endif
collector->SetServiceManagerMainEntryPointTime(
main_entry_time_.ToInternalValue());
}
}
}
Context::~Context() { blocking_pool_->Shutdown(); }
void Context::RunCommandLineApplication() {
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
if (command_line->HasSwitch(kService))
Run(command_line->GetSwitchValueASCII(kService));
}
void Context::Run(const std::string& name) {
service_manager_->SetInstanceQuitCallback(base::Bind(&OnInstanceQuit, name));
mojom::InterfaceProviderPtr remote_interfaces;
mojom::InterfaceProviderPtr local_interfaces;
std::unique_ptr<ConnectParams> params(new ConnectParams);
params->set_source(CreateServiceManagerIdentity());
params->set_target(Identity(name, mojom::kRootUserID));
params->set_remote_interfaces(mojo::MakeRequest(&remote_interfaces));
service_manager_->Connect(std::move(params));
}
} // namespace service_manager
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