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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef NET_QUIC_QUIC_PACKET_WRITER_H_ | 5 #ifndef NET_QUIC_QUIC_PACKET_WRITER_H_ |
6 #define NET_QUIC_QUIC_PACKET_WRITER_H_ | 6 #define NET_QUIC_QUIC_PACKET_WRITER_H_ |
7 | 7 |
8 #include "net/base/ip_endpoint.h" | 8 #include "net/base/ip_endpoint.h" |
9 #include "net/quic/quic_protocol.h" | 9 #include "net/quic/quic_protocol.h" |
10 | 10 |
11 namespace net { | 11 namespace net { |
12 | 12 |
13 class QuicBlockedWriterInterface; | 13 class QuicBlockedWriterInterface; |
14 struct WriteResult; | 14 struct WriteResult; |
15 | 15 |
16 // An interface between writers and the entity managing the | 16 // An interface between writers and the entity managing the |
17 // socket (in our case the QuicDispatcher). This allows the Dispatcher to | 17 // socket (in our case the QuicDispatcher). This allows the Dispatcher to |
18 // control writes, and manage any writers who end up write blocked. | 18 // control writes, and manage any writers who end up write blocked. |
19 class NET_EXPORT_PRIVATE QuicPacketWriter { | 19 class NET_EXPORT_PRIVATE QuicPacketWriter { |
20 public: | 20 public: |
21 virtual ~QuicPacketWriter() {} | 21 virtual ~QuicPacketWriter() {} |
22 | 22 |
23 // Sends the packet out to the peer. If the write succeeded, the result's | 23 // Sends the packet out to the peer. If the write succeeded, the result's |
24 // status is WRITE_STATUS_OK and bytes_written is populated. If the write | 24 // status is WRITE_STATUS_OK and bytes_written is populated. If the write |
25 // failed, the result's status is WRITE_STATUS_BLOCKED or WRITE_STATUS_ERROR | 25 // failed, the result's status is WRITE_STATUS_BLOCKED or WRITE_STATUS_ERROR |
26 // and error_code is populated. | 26 // and error_code is populated. |
27 virtual WriteResult WritePacket( | 27 virtual WriteResult WritePacket( |
28 const char* buffer, size_t buf_len, | 28 const char* buffer, size_t buf_len, |
29 const net::IPAddressNumber& self_address, | 29 const IPAddressNumber& self_address, |
30 const net::IPEndPoint& peer_address, | 30 const IPEndPoint& peer_address, |
31 QuicBlockedWriterInterface* blocked_writer) = 0; | 31 QuicBlockedWriterInterface* blocked_writer) = 0; |
32 | 32 |
33 // Returns true if the writer buffers and subsequently rewrites data | 33 // Returns true if the writer buffers and subsequently rewrites data |
34 // when an attempt to write results in the underlying socket becoming | 34 // when an attempt to write results in the underlying socket becoming |
35 // write blocked. | 35 // write blocked. |
36 virtual bool IsWriteBlockedDataBuffered() const = 0; | 36 virtual bool IsWriteBlockedDataBuffered() const = 0; |
37 | 37 |
38 // Returns true if the network socket is not writable. | 38 // Returns true if the network socket is not writable. |
39 virtual bool IsWriteBlocked() const = 0; | 39 virtual bool IsWriteBlocked() const = 0; |
40 | 40 |
41 // Records that the socket has become writable, for example when an EPOLLOUT | 41 // Records that the socket has become writable, for example when an EPOLLOUT |
42 // is received or an asynchronous write completes. | 42 // is received or an asynchronous write completes. |
43 virtual void SetWritable() = 0; | 43 virtual void SetWritable() = 0; |
44 }; | 44 }; |
45 | 45 |
46 } // namespace net | 46 } // namespace net |
47 | 47 |
48 #endif // NET_QUIC_QUIC_PACKET_WRITER_H_ | 48 #endif // NET_QUIC_QUIC_PACKET_WRITER_H_ |
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