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- // Copyright 2015 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.
- #ifndef REMOTING_PROTOCOL_P2P_DATAGRAM_SOCKET_H_
- #define REMOTING_PROTOCOL_P2P_DATAGRAM_SOCKET_H_
- #include "net/base/completion_repeating_callback.h"
- namespace net {
- class IOBuffer;
- } // namespace net
- namespace remoting {
- namespace protocol {
- // Peer-to-peer socket with datagram semantics.
- class P2PDatagramSocket {
- public:
- virtual ~P2PDatagramSocket() {}
- // Receives a packet, up to |buf_len| bytes, from the socket. Size of the
- // incoming packet is returned in case of success. If the packet is larger
- // than |buf_len| then it is truncated, i.e. only the first |buf_len| bytes
- // are stored in the buffer. In case of failure a net error code is returned.
- // ERR_IO_PENDING is returned if the operation could not be completed
- // synchronously, in which case the result will be passed to the callback when
- // available. If the operation is not completed immediately, the socket
- // acquires a reference to the provided buffer until the callback is invoked
- // or the socket is closed. If the socket is destroyed before the read
- // completes, the callback will not be invoked.
- virtual int Recv(const scoped_refptr<net::IOBuffer>& buf,
- int buf_len,
- const net::CompletionRepeatingCallback& callback) = 0;
- // Sends a packet. Returns |buf_len| to indicate success, otherwise a net
- // error code is returned. ERR_IO_PENDING is returned if the operation could
- // not be completed synchronously, in which case the result will be passed to
- // the callback when available. If the operation is not completed immediately,
- // the socket acquires a reference to the provided buffer until the callback
- // is invoked or the socket is closed. Implementations of this method should
- // not modify the contents of the actual buffer that is written to the socket.
- virtual int Send(const scoped_refptr<net::IOBuffer>& buf,
- int buf_len,
- const net::CompletionRepeatingCallback& callback) = 0;
- };
- } // namespace protocol
- } // namespace remoting
- #endif // REMOTING_PROTOCOL_P2P_DATAGRAM_SOCKET_H_
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