Adds a modified copy of talk/base to webrtc/base. It is the first step in migrating talk/base to webrtc/base.
BUG=N/A
R=andrew@webrtc.org, wu@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/12199004
git-svn-id: http://webrtc.googlecode.com/svn/trunk@6107 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/base/asyncudpsocket.cc b/webrtc/base/asyncudpsocket.cc
new file mode 100644
index 0000000..3e2ecc4
--- /dev/null
+++ b/webrtc/base/asyncudpsocket.cc
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/base/asyncudpsocket.h"
+#include "webrtc/base/logging.h"
+
+namespace rtc {
+
+static const int BUF_SIZE = 64 * 1024;
+
+AsyncUDPSocket* AsyncUDPSocket::Create(
+ AsyncSocket* socket,
+ const SocketAddress& bind_address) {
+ scoped_ptr<AsyncSocket> owned_socket(socket);
+ if (socket->Bind(bind_address) < 0) {
+ LOG(LS_ERROR) << "Bind() failed with error " << socket->GetError();
+ return NULL;
+ }
+ return new AsyncUDPSocket(owned_socket.release());
+}
+
+AsyncUDPSocket* AsyncUDPSocket::Create(SocketFactory* factory,
+ const SocketAddress& bind_address) {
+ AsyncSocket* socket =
+ factory->CreateAsyncSocket(bind_address.family(), SOCK_DGRAM);
+ if (!socket)
+ return NULL;
+ return Create(socket, bind_address);
+}
+
+AsyncUDPSocket::AsyncUDPSocket(AsyncSocket* socket)
+ : socket_(socket) {
+ ASSERT(socket_);
+ size_ = BUF_SIZE;
+ buf_ = new char[size_];
+
+ // The socket should start out readable but not writable.
+ socket_->SignalReadEvent.connect(this, &AsyncUDPSocket::OnReadEvent);
+ socket_->SignalWriteEvent.connect(this, &AsyncUDPSocket::OnWriteEvent);
+}
+
+AsyncUDPSocket::~AsyncUDPSocket() {
+ delete [] buf_;
+}
+
+SocketAddress AsyncUDPSocket::GetLocalAddress() const {
+ return socket_->GetLocalAddress();
+}
+
+SocketAddress AsyncUDPSocket::GetRemoteAddress() const {
+ return socket_->GetRemoteAddress();
+}
+
+int AsyncUDPSocket::Send(const void *pv, size_t cb,
+ const rtc::PacketOptions& options) {
+ return socket_->Send(pv, cb);
+}
+
+int AsyncUDPSocket::SendTo(const void *pv, size_t cb,
+ const SocketAddress& addr,
+ const rtc::PacketOptions& options) {
+ return socket_->SendTo(pv, cb, addr);
+}
+
+int AsyncUDPSocket::Close() {
+ return socket_->Close();
+}
+
+AsyncUDPSocket::State AsyncUDPSocket::GetState() const {
+ return STATE_BOUND;
+}
+
+int AsyncUDPSocket::GetOption(Socket::Option opt, int* value) {
+ return socket_->GetOption(opt, value);
+}
+
+int AsyncUDPSocket::SetOption(Socket::Option opt, int value) {
+ return socket_->SetOption(opt, value);
+}
+
+int AsyncUDPSocket::GetError() const {
+ return socket_->GetError();
+}
+
+void AsyncUDPSocket::SetError(int error) {
+ return socket_->SetError(error);
+}
+
+void AsyncUDPSocket::OnReadEvent(AsyncSocket* socket) {
+ ASSERT(socket_.get() == socket);
+
+ SocketAddress remote_addr;
+ int len = socket_->RecvFrom(buf_, size_, &remote_addr);
+ if (len < 0) {
+ // An error here typically means we got an ICMP error in response to our
+ // send datagram, indicating the remote address was unreachable.
+ // When doing ICE, this kind of thing will often happen.
+ // TODO: Do something better like forwarding the error to the user.
+ SocketAddress local_addr = socket_->GetLocalAddress();
+ LOG(LS_INFO) << "AsyncUDPSocket[" << local_addr.ToSensitiveString() << "] "
+ << "receive failed with error " << socket_->GetError();
+ return;
+ }
+
+ // TODO: Make sure that we got all of the packet.
+ // If we did not, then we should resize our buffer to be large enough.
+ SignalReadPacket(this, buf_, static_cast<size_t>(len), remote_addr,
+ CreatePacketTime(0));
+}
+
+void AsyncUDPSocket::OnWriteEvent(AsyncSocket* socket) {
+ SignalReadyToSend(this);
+}
+
+} // namespace rtc