root/jingle/glue/fake_socket_factory.cc

DEFINITIONS

1. error_
2. GetLocalAddress
3. GetRemoteAddress
4. Send
5. SendTo
6. Close
7. GetState
8. GetOption
9. SetOption
10. GetError
11. SetError
12. DeliverPacket
13. SendPacket
14. DeliverPacket
15. AddSocket
16. RemoveSocket
17. last_allocated_port_
18. CreateUdpSocket
19. CreateServerTcpSocket
20. CreateClientTcpSocket

// Copyright (c) 2011 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 "jingle/glue/fake_socket_factory.h"

#include "base/bind.h"
#include "base/message_loop/message_loop.h"
#include "jingle/glue/utils.h"
#include "third_party/libjingle/source/talk/base/asyncpacketsocket.h"
#include "third_party/libjingle/source/talk/base/asyncsocket.h"

namespace jingle_glue {

FakeUDPPacketSocket::FakeUDPPacketSocket(FakeSocketManager* fake_socket_manager,
                                         const net::IPEndPoint& address)
    : fake_socket_manager_(fake_socket_manager),
      endpoint_(address), state_(IS_OPEN), error_(0) {
  CHECK(IPEndPointToSocketAddress(endpoint_, &local_address_));
  fake_socket_manager_->AddSocket(this);
}

FakeUDPPacketSocket::~FakeUDPPacketSocket() {
  fake_socket_manager_->RemoveSocket(this);
}

talk_base::SocketAddress FakeUDPPacketSocket::GetLocalAddress() const {
  DCHECK(CalledOnValidThread());
  return local_address_;
}

talk_base::SocketAddress FakeUDPPacketSocket::GetRemoteAddress() const {
  DCHECK(CalledOnValidThread());
  return remote_address_;
}

int FakeUDPPacketSocket::Send(const void *data, size_t data_size,
                              const talk_base::PacketOptions& options) {
  DCHECK(CalledOnValidThread());
  return SendTo(data, data_size, remote_address_, options);
}

int FakeUDPPacketSocket::SendTo(const void *data, size_t data_size,
                                const talk_base::SocketAddress& address,
                                const talk_base::PacketOptions& options) {
  DCHECK(CalledOnValidThread());

  if (state_ == IS_CLOSED) {
    return ENOTCONN;
  }

  net::IPEndPoint destination;
  if (!SocketAddressToIPEndPoint(address, &destination)) {
    return EINVAL;
  }

  const char* data_char = reinterpret_cast<const char*>(data);
  std::vector<char> data_vector(data_char, data_char + data_size);

  fake_socket_manager_->SendPacket(endpoint_, destination, data_vector);

  return data_size;
}

int FakeUDPPacketSocket::Close() {
  DCHECK(CalledOnValidThread());
  state_ = IS_CLOSED;
  return 0;
}

talk_base::AsyncPacketSocket::State FakeUDPPacketSocket::GetState() const {
  DCHECK(CalledOnValidThread());

  switch (state_) {
    case IS_OPEN:
      return STATE_BOUND;
    case IS_CLOSED:
      return STATE_CLOSED;
  }

  NOTREACHED();
  return STATE_CLOSED;
}

int FakeUDPPacketSocket::GetOption(talk_base::Socket::Option opt, int* value) {
  DCHECK(CalledOnValidThread());
  return -1;
}

int FakeUDPPacketSocket::SetOption(talk_base::Socket::Option opt, int value) {
  DCHECK(CalledOnValidThread());
  return -1;
}

int FakeUDPPacketSocket::GetError() const {
  DCHECK(CalledOnValidThread());
  return error_;
}

void FakeUDPPacketSocket::SetError(int error) {
  DCHECK(CalledOnValidThread());
  error_ = error;
}

void FakeUDPPacketSocket::DeliverPacket(const net::IPEndPoint& from,
                                        const std::vector<char>& data) {
  DCHECK(CalledOnValidThread());

  talk_base::SocketAddress address;
  if (!jingle_glue::IPEndPointToSocketAddress(from, &address)) {
    // We should always be able to convert address here because we
    // don't expect IPv6 address on IPv4 connections.
    NOTREACHED();
    return;
  }

  SignalReadPacket(this, &data[0], data.size(), address,
                   talk_base::CreatePacketTime(0));
}

FakeSocketManager::FakeSocketManager()
    : message_loop_(base::MessageLoop::current()) {}

FakeSocketManager::~FakeSocketManager() { }

void FakeSocketManager::SendPacket(const net::IPEndPoint& from,
                                   const net::IPEndPoint& to,
                                   const std::vector<char>& data) {
  DCHECK_EQ(base::MessageLoop::current(), message_loop_);

  message_loop_->PostTask(
      FROM_HERE,
      base::Bind(&FakeSocketManager::DeliverPacket, this, from, to, data));
}

void FakeSocketManager::DeliverPacket(const net::IPEndPoint& from,
                                      const net::IPEndPoint& to,
                                      const std::vector<char>& data) {
  DCHECK_EQ(base::MessageLoop::current(), message_loop_);

  std::map<net::IPEndPoint, FakeUDPPacketSocket*>::iterator it =
      endpoints_.find(to);
  if (it == endpoints_.end()) {
    LOG(WARNING) << "Dropping packet with unknown destination: "
                 << to.ToString();
    return;
  }
  it->second->DeliverPacket(from, data);
}

void FakeSocketManager::AddSocket(FakeUDPPacketSocket* socket_factory) {
  DCHECK_EQ(base::MessageLoop::current(), message_loop_);

  endpoints_[socket_factory->endpoint()] = socket_factory;
}

void FakeSocketManager::RemoveSocket(FakeUDPPacketSocket* socket_factory) {
  DCHECK_EQ(base::MessageLoop::current(), message_loop_);

  endpoints_.erase(socket_factory->endpoint());
}

FakeSocketFactory::FakeSocketFactory(FakeSocketManager* socket_manager,
                                     const net::IPAddressNumber& address)
    : socket_manager_(socket_manager),
      address_(address),
      last_allocated_port_(0) {
}

FakeSocketFactory::~FakeSocketFactory() {
}

talk_base::AsyncPacketSocket* FakeSocketFactory::CreateUdpSocket(
    const talk_base::SocketAddress& local_address, int min_port, int max_port) {
  CHECK_EQ(min_port, 0);
  CHECK_EQ(max_port, 0);
  return new FakeUDPPacketSocket(
      socket_manager_.get(), net::IPEndPoint(address_, ++last_allocated_port_));
}

talk_base::AsyncPacketSocket* FakeSocketFactory::CreateServerTcpSocket(
    const talk_base::SocketAddress& local_address, int min_port, int max_port,
    int opts) {
  // TODO(sergeyu): Implement fake TCP sockets.
  NOTIMPLEMENTED();
  return NULL;
}

talk_base::AsyncPacketSocket* FakeSocketFactory::CreateClientTcpSocket(
    const talk_base::SocketAddress& local_address,
    const talk_base::SocketAddress& remote_address,
    const talk_base::ProxyInfo& proxy_info, const std::string& user_agent,
    int opts) {
  // TODO(sergeyu): Implement fake TCP sockets.
  NOTIMPLEMENTED();
  return NULL;
}

}  // namespace jingle_glue