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source: webrtc/talk/base/asyncudpsocket.h @ 0:4bda6873e34c

pub_scrub_3792 tip
Last change on this file since 0:4bda6873e34c was 0:4bda6873e34c, checked in by Michael Prittie <mprittie@…>, 6 years ago

Scrubbed password for publication.

File size: 3.3 KB
Line 
1/*
2 * libjingle
3 * Copyright 2004--2005, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef TALK_BASE_ASYNCUDPSOCKET_H_
29#define TALK_BASE_ASYNCUDPSOCKET_H_
30
31#include "talk/base/asyncpacketsocket.h"
32#include "talk/base/scoped_ptr.h"
33#include "talk/base/socketfactory.h"
34
35namespace talk_base {
36
37// Provides the ability to receive packets asynchronously.  Sends are not
38// buffered since it is acceptable to drop packets under high load.
39class AsyncUDPSocket : public AsyncPacketSocket {
40 public:
41  // Binds |socket| and creates AsyncUDPSocket for it. Takes ownership
42  // of |socket|. Returns NULL if bind() fails (|socket| is destroyed
43  // in that case).
44  static AsyncUDPSocket* Create(AsyncSocket* socket,
45                                const SocketAddress& bind_address);
46  // Creates a new socket for sending asynchronous UDP packets using an
47  // asynchronous socket from the given factory.
48  static AsyncUDPSocket* Create(SocketFactory* factory,
49                                const SocketAddress& bind_address);
50  explicit AsyncUDPSocket(AsyncSocket* socket);
51  virtual ~AsyncUDPSocket();
52
53  virtual SocketAddress GetLocalAddress() const;
54  virtual SocketAddress GetRemoteAddress() const;
55  virtual int Send(const void *pv, size_t cb, DiffServCodePoint dscp);
56  virtual int SendTo(const void *pv, size_t cb, const SocketAddress& addr,
57                     DiffServCodePoint dscp);
58  virtual int Close();
59
60  virtual State GetState() const;
61  virtual int GetOption(Socket::Option opt, int* value);
62  virtual int SetOption(Socket::Option opt, int value);
63  virtual int GetError() const;
64  virtual void SetError(int error);
65
66 private:
67  // Called when the underlying socket is ready to be read from.
68  void OnReadEvent(AsyncSocket* socket);
69  // Called when the underlying socket is ready to send.
70  void OnWriteEvent(AsyncSocket* socket);
71
72  scoped_ptr<AsyncSocket> socket_;
73  char* buf_;
74  size_t size_;
75};
76
77}  // namespace talk_base
78
79#endif  // TALK_BASE_ASYNCUDPSOCKET_H_
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