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// Copyright 2014 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 EXTENSIONS_BROWSER_API_SOCKETS_TCP_TCP_SOCKET_EVENT_DISPATCHER_H_
#define EXTENSIONS_BROWSER_API_SOCKETS_TCP_TCP_SOCKET_EVENT_DISPATCHER_H_
#include "extensions/browser/api/api_resource_manager.h"
#include "extensions/browser/api/sockets_tcp/sockets_tcp_api.h"
namespace content {
class BrowserContext;
}
namespace extensions {
struct Event;
class ResumableTCPSocket;
}
namespace extensions {
namespace core_api {
// Dispatch events related to "sockets.tcp" sockets from callback on native
// socket instances. There is one instance per profile.
class TCPSocketEventDispatcher
: public BrowserContextKeyedAPI,
public base::SupportsWeakPtr<TCPSocketEventDispatcher> {
public:
explicit TCPSocketEventDispatcher(content::BrowserContext* context);
virtual ~TCPSocketEventDispatcher();
// Socket is active, start receving from it.
void OnSocketConnect(const std::string& extension_id, int socket_id);
// Socket is active again, start receiving data from it.
void OnSocketResume(const std::string& extension_id, int socket_id);
// BrowserContextKeyedAPI implementation.
static BrowserContextKeyedAPIFactory<TCPSocketEventDispatcher>*
GetFactoryInstance();
// Convenience method to get the SocketEventDispatcher for a profile.
static TCPSocketEventDispatcher* Get(content::BrowserContext* context);
private:
typedef ApiResourceManager<ResumableTCPSocket>::ApiResourceData SocketData;
friend class BrowserContextKeyedAPIFactory<TCPSocketEventDispatcher>;
// BrowserContextKeyedAPI implementation.
static const char* service_name() { return "TCPSocketEventDispatcher"; }
static const bool kServiceHasOwnInstanceInIncognito = true;
static const bool kServiceIsNULLWhileTesting = true;
// base::Bind supports methods with up to 6 parameters. ReadParams is used
// as a workaround that limitation for invoking StartReceive.
struct ReadParams {
ReadParams();
~ReadParams();
content::BrowserThread::ID thread_id;
void* browser_context_id;
std::string extension_id;
scoped_refptr<SocketData> sockets;
int socket_id;
};
// Start a receive and register a callback.
void StartSocketRead(const std::string& extension_id, int socket_id);
// Start a receive and register a callback.
static void StartRead(const ReadParams& params);
// Called when socket receive data.
static void ReadCallback(const ReadParams& params,
int bytes_read,
scoped_refptr<net::IOBuffer> io_buffer);
// Post an extension event from IO to UI thread
static void PostEvent(const ReadParams& params, scoped_ptr<Event> event);
// Dispatch an extension event on to EventRouter instance on UI thread.
static void DispatchEvent(void* browser_context_id,
const std::string& extension_id,
scoped_ptr<Event> event);
// Usually IO thread (except for unit testing).
content::BrowserThread::ID thread_id_;
content::BrowserContext* const browser_context_;
scoped_refptr<SocketData> sockets_;
};
} // namespace core_api
} // namespace extensions
#endif // EXTENSIONS_BROWSER_API_SOCKETS_TCP_TCP_SOCKET_EVENT_DISPATCHER_H_
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