Ignore ERR_ADDRESS_INVALID error returned from sendto().

remoting/jingle_glue/chromium_socket_factory.cc

 // 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.
 
 #include "remoting/jingle_glue/chromium_socket_factory.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "jingle/glue/utils.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_errors.h"
 #include "net/udp/udp_server_socket.h"
 #include "third_party/libjingle/source/talk/base/asyncpacketsocket.h"
 
 namespace remoting {
 
 namespace {
 
 // Size of the buffer to allocate for RecvFrom().
 const int kReceiveBufferSize = 65536;
 
 // Maximum amount of data in the send buffers. This is necessary to
 // prevent out-of-memory crashes if the caller sends data faster than
 // Pepper's UDP API can handle it. This maximum should never be
 // reached under normal conditions.
 const int kMaxSendBufferSize = 256 * 1024;
 
+// Defines set of transient errors. These errors are ignored when we get them
+// from sendto() calls.
+bool IsTransientError(int error) {
+  return error == net::ERR_ADDRESS_UNREACHABLE ||
+      error == net::ERR_ADDRESS_INVALID;
+}
+
 class UdpPacketSocket : public talk_base::AsyncPacketSocket {
  public:
   UdpPacketSocket();
   virtual ~UdpPacketSocket();
 
   bool Init(const talk_base::SocketAddress& local_address,
             int min_port, int max_port);
 
   // talk_base::AsyncPacketSocket interface.
   virtual talk_base::SocketAddress GetLocalAddress() const;
@@ skipping 217 matching lines @@
     send_pending_ = true;
   } else {
     OnSendCompleted(result);
   }
 }
 
 void UdpPacketSocket::OnSendCompleted(int result) {
   send_pending_ = false;
 
   if (result < 0) {
-    // Treat all errors except ERR_ADDRESS_UNREACHABLE as fatal.
-    if (result != net::ERR_ADDRESS_UNREACHABLE) {
+    if (!IsTransientError(result)) {
       LOG(ERROR) << "Send failed on a UDP socket: " << result;
       error_ = EINVAL;
       return;
     }
   }
 
   // Don't need to worry about partial sends because this is a datagram
   // socket.
   send_queue_size_ -= send_queue_.front().data->size();
   send_queue_.pop_front();
@@ skipping 69 matching lines @@
       const talk_base::SocketAddress& remote_address,
       const talk_base::ProxyInfo& proxy_info,
       const std::string& user_agent,
       bool ssl) {
   // We don't use TCP sockets for remoting connections.
   NOTREACHED();
   return NULL;
 }
 
 }  // namespace remoting