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// Copyright (c) 2012 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 "chrome/browser/chromeos/dbus/cros_dbus_service.h"
#include "base/stl_util.h"
#include "base/threading/platform_thread.h"
#include "chrome/browser/chromeos/dbus/proxy_resolution_service_provider.h"
#include "chrome/browser/chromeos/system/runtime_environment.h"
#include "content/public/browser/browser_thread.h"
#include "dbus/bus.h"
#include "dbus/exported_object.h"
#include "dbus/object_path.h"
#include "third_party/cros_system_api/dbus/service_constants.h"
namespace chromeos {
// The CrosDBusService implementation used in production, and unit tests.
class CrosDBusServiceImpl : public CrosDBusService {
public:
explicit CrosDBusServiceImpl(dbus::Bus* bus)
: service_started_(false),
origin_thread_id_(base::PlatformThread::CurrentId()),
bus_(bus) {
}
virtual ~CrosDBusServiceImpl() {
STLDeleteElements(&service_providers_);
}
// CrosDBusService override.
virtual void Start() {
// Make sure we're running on the origin thread (i.e. the UI thread in
// production).
DCHECK(OnOriginThread());
// Return if the service has been already started.
if (service_started_)
return;
exported_object_ = bus_->GetExportedObject(
kLibCrosServiceName,
dbus::ObjectPath(kLibCrosServicePath));
for (size_t i = 0; i < service_providers_.size(); ++i)
service_providers_[i]->Start(exported_object_);
service_started_ = true;
VLOG(1) << "CrosDBusServiceImpl started.";
}
// Registers a service provider. This must be done before Start().
// |provider| will be owned by CrosDBusService.
void RegisterServiceProvider(ServiceProviderInterface* provider) {
service_providers_.push_back(provider);
}
private:
// Returns true if the current thread is on the origin thread.
bool OnOriginThread() {
return base::PlatformThread::CurrentId() == origin_thread_id_;
}
bool service_started_;
base::PlatformThreadId origin_thread_id_;
dbus::Bus* bus_;
scoped_refptr<dbus::ExportedObject> exported_object_;
// Service providers that form CrosDBusService.
std::vector<ServiceProviderInterface*> service_providers_;
};
// The stub CrosDBusService implementation used on Linux desktop,
// which does nothing as of now.
class CrosDBusServiceStubImpl : public CrosDBusService {
public:
CrosDBusServiceStubImpl() {
}
virtual ~CrosDBusServiceStubImpl() {
}
// CrosDBusService override.
virtual void Start() {
}
};
// static
CrosDBusService* CrosDBusService::Create(dbus::Bus* bus) {
if (system::runtime_environment::IsRunningOnChromeOS()) {
CrosDBusServiceImpl* service = new CrosDBusServiceImpl(bus);
service->RegisterServiceProvider(ProxyResolutionServiceProvider::Create());
return service;
} else {
return new CrosDBusServiceStubImpl;
}
}
// static
CrosDBusService* CrosDBusService::CreateForTesting(
dbus::Bus* bus,
ServiceProviderInterface* proxy_resolution_service) {
CrosDBusServiceImpl* service = new CrosDBusServiceImpl(bus);
service->RegisterServiceProvider(proxy_resolution_service);
return service;
}
CrosDBusService::~CrosDBusService() {
}
CrosDBusService::ServiceProviderInterface::~ServiceProviderInterface() {
}
} // namespace chromeos
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