net/quic/quic_blocked_writer_interface.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // This is an interface for all objects that want to be notified that
   6 // the underlying UDP socket is available for writing (not write blocked
   7 // anymore).
   8
   9 #ifndef NET_QUIC_QUIC_BLOCKED_WRITER_INTERFACE_H_
  10 #define NET_QUIC_QUIC_BLOCKED_WRITER_INTERFACE_H_
  11
  12 #include "net/base/net_export.h"
  13
  14 namespace net {
  15
  16 class NET_EXPORT_PRIVATE QuicBlockedWriterInterface {
  17  public:
  18   virtual ~QuicBlockedWriterInterface() {}
  19
  20   // Called by the PacketWriter when the underlying socket becomes writable
  21   // so that the BlockedWriter can go ahead and try writing. This methods
  22   // should return false if the socket has become blocked while writing.
  23   virtual bool OnCanWrite() = 0;
  24 };
  25
  26 }  // namespace net
  27
  28 #endif  // NET_QUIC_QUIC_BLOCKED_WRITER_INTERFACE_H_