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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.
#ifndef CHROME_BROWSER_EXTENSIONS_API_SOCKET_SOCKET_H_
#define CHROME_BROWSER_EXTENSIONS_API_SOCKET_SOCKET_H_
#pragma once
#include <queue>
#include <string>
#include <utility>
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "chrome/browser/extensions/api/api_resource.h"
#include "net/base/completion_callback.h"
#include "net/base/io_buffer.h"
namespace net {
class AddressList;
class IPEndPoint;
class Socket;
}
namespace extensions {
typedef base::Callback<void(int)> CompletionCallback;
typedef base::Callback<void(int, scoped_refptr<net::IOBuffer> io_buffer)>
ReadCompletionCallback;
typedef base::Callback<
void(int, scoped_refptr<net::IOBuffer> io_buffer, const std::string&, int)>
RecvFromCompletionCallback;
// A Socket wraps a low-level socket and includes housekeeping information that
// we need to manage it in the context of an extension.
class Socket : public APIResource {
public:
virtual ~Socket();
virtual void Connect(const std::string& address,
int port,
const CompletionCallback& callback) = 0;
virtual void Disconnect() = 0;
virtual int Bind(const std::string& address, int port) = 0;
// The |callback| will be called with the number of bytes read into the
// buffer, or a negative number if an error occurred.
virtual void Read(int count,
const ReadCompletionCallback& callback) = 0;
// The |callback| will be called with |byte_count| or a negative number if an
// error occurred.
void Write(scoped_refptr<net::IOBuffer> io_buffer,
int byte_count,
const CompletionCallback& callback);
virtual void RecvFrom(int count,
const RecvFromCompletionCallback& callback) = 0;
virtual void SendTo(scoped_refptr<net::IOBuffer> io_buffer,
int byte_count,
const std::string& address,
int port,
const CompletionCallback& callback) = 0;
static bool StringAndPortToAddressList(const std::string& ip_address_str,
int port,
net::AddressList* address_list);
static bool StringAndPortToIPEndPoint(const std::string& ip_address_str,
int port,
net::IPEndPoint* ip_end_point);
static void IPEndPointToStringAndPort(const net::IPEndPoint& address,
std::string* ip_address_str,
int* port);
protected:
explicit Socket(APIResourceEventNotifier* event_notifier);
void WriteData();
virtual int WriteImpl(net::IOBuffer* io_buffer,
int io_buffer_size,
const net::CompletionCallback& callback) = 0;
virtual void OnWriteComplete(int result);
const std::string address_;
int port_;
bool is_connected_;
private:
struct WriteRequest {
WriteRequest(scoped_refptr<net::IOBuffer> io_buffer,
int byte_count,
const CompletionCallback& callback)
: io_buffer(io_buffer),
byte_count(byte_count),
callback(callback),
bytes_written(0) { }
~WriteRequest() { }
scoped_refptr<net::IOBuffer> io_buffer;
int byte_count;
CompletionCallback callback;
int bytes_written;
};
std::queue<WriteRequest> write_queue_;
scoped_refptr<net::IOBuffer> io_buffer_write_;
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_SOCKET_SOCKET_H_
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