native_client_sdk/src/libraries/nacl_io/socket/udp_event_emitter.h

   1 // Copyright 2013 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 #ifndef LIBRARIES_NACL_IO_SOCKET_UDP_EVENT_EMITTER_H_
   6 #define LIBRARIES_NACL_IO_SOCKET_UDP_EVENT_EMITTER_H_
   7
   8 #include "nacl_io/socket/fifo_packet.h"
   9 #include "nacl_io/stream/stream_event_emitter.h"
  10
  11 #include "sdk_util/macros.h"
  12 #include "sdk_util/scoped_ref.h"
  13
  14 namespace nacl_io {
  15
  16 class UdpEventEmitter;
  17 typedef sdk_util::ScopedRef<UdpEventEmitter> ScopedUdpEventEmitter;
  18
  19 class UdpEventEmitter : public StreamEventEmitter {
  20  public:
  21   UdpEventEmitter(size_t rsize, size_t wsize);
  22
  23   // Takes or gives away ownership of the packet.
  24   Packet* ReadRXPacket_Locked();
  25   void WriteRXPacket_Locked(Packet* packet);
  26
  27   Packet* ReadTXPacket_Locked();
  28   void WriteTXPacket_Locked(Packet* packet);
  29
  30  protected:
  31   virtual FIFOPacket* in_fifo() { return &in_fifo_; }
  32   virtual FIFOPacket* out_fifo() { return &out_fifo_; }
  33
  34  private:
  35   FIFOPacket in_fifo_;
  36   FIFOPacket out_fifo_;
  37   DISALLOW_COPY_AND_ASSIGN(UdpEventEmitter);
  38 };
  39
  40 }  // namespace nacl_io
  41
  42 #endif  // LIBRARIES_NACL_IO_SOCKET_UDP_EVENT_EMITTER_H_