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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.
#ifndef CHROME_UTILITY_LOCAL_DISCOVERY_SERVICE_DISCOVERY_MESSAGE_HANDLER_H_
#define CHROME_UTILITY_LOCAL_DISCOVERY_SERVICE_DISCOVERY_MESSAGE_HANDLER_H_
#include <stdint.h>
#include <map>
#include <string>
#include "base/memory/linked_ptr.h"
#include "build/build_config.h"
#include "chrome/common/local_discovery/service_discovery_client.h"
#include "chrome/utility/utility_message_handler.h"
struct LocalDiscoveryMsg_SocketInfo;
namespace net {
class MDnsClient;
}
namespace base {
struct FileDescriptor;
class TaskRunner;
class Thread;
}
namespace tracked_objects {
class Location;
}
namespace local_discovery {
class ServiceDiscoveryClient;
// Handles messages related to local discovery inside utility process.
class ServiceDiscoveryMessageHandler : public UtilityMessageHandler {
public:
ServiceDiscoveryMessageHandler();
~ServiceDiscoveryMessageHandler() override;
// UtilityMessageHandler implementation.
bool OnMessageReceived(const IPC::Message& message) override;
static void PreSandboxStartup();
private:
typedef std::map<uint64_t, linked_ptr<ServiceWatcher>> ServiceWatchers;
typedef std::map<uint64_t, linked_ptr<ServiceResolver>> ServiceResolvers;
typedef std::map<uint64_t, linked_ptr<LocalDomainResolver>>
LocalDomainResolvers;
// Lazy initializes ServiceDiscoveryClient.
bool InitializeThread();
void PostTask(const tracked_objects::Location& from_here,
const base::Closure& task);
// IPC message handlers.
#if defined(OS_POSIX)
void OnSetSockets(const std::vector<LocalDiscoveryMsg_SocketInfo>& sockets);
#endif // OS_POSIX
void OnStartWatcher(uint64_t id, const std::string& service_type);
void OnDiscoverServices(uint64_t id, bool force_update);
void OnSetActivelyRefreshServices(uint64_t id,
bool actively_refresh_services);
void OnDestroyWatcher(uint64_t id);
void OnResolveService(uint64_t id, const std::string& service_name);
void OnDestroyResolver(uint64_t id);
void OnResolveLocalDomain(uint64_t id,
const std::string& domain,
net::AddressFamily address_family);
void OnDestroyLocalDomainResolver(uint64_t id);
void InitializeMdns();
void StartWatcher(uint64_t id, const std::string& service_type);
void DiscoverServices(uint64_t id, bool force_update);
void SetActivelyRefreshServices(uint64_t id, bool actively_refresh_services);
void DestroyWatcher(uint64_t id);
void ResolveService(uint64_t id, const std::string& service_name);
void DestroyResolver(uint64_t id);
void ResolveLocalDomain(uint64_t id,
const std::string& domain,
net::AddressFamily address_family);
void DestroyLocalDomainResolver(uint64_t id);
void ShutdownLocalDiscovery();
void ShutdownOnIOThread();
// Is called by ServiceWatcher as callback.
void OnServiceUpdated(uint64_t id,
ServiceWatcher::UpdateType update,
const std::string& name);
// Is called by ServiceResolver as callback.
void OnServiceResolved(uint64_t id,
ServiceResolver::RequestStatus status,
const ServiceDescription& description);
// Is called by LocalDomainResolver as callback.
void OnLocalDomainResolved(uint64_t id,
bool success,
const net::IPAddressNumber& address_ipv4,
const net::IPAddressNumber& address_ipv6);
void Send(IPC::Message* msg);
ServiceWatchers service_watchers_;
ServiceResolvers service_resolvers_;
LocalDomainResolvers local_domain_resolvers_;
scoped_ptr<net::MDnsClient> mdns_client_;
scoped_ptr<ServiceDiscoveryClient> service_discovery_client_;
scoped_refptr<base::TaskRunner> utility_task_runner_;
scoped_refptr<base::TaskRunner> discovery_task_runner_;
scoped_ptr<base::Thread> discovery_thread_;
};
} // namespace local_discovery
#endif // CHROME_UTILITY_LOCAL_DISCOVERY_SERVICE_DISCOVERY_MESSAGE_HANDLER_H_
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