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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_ACK_NOTIFIER_H_ | 5 #ifndef NET_QUIC_QUIC_ACK_NOTIFIER_H_ |
6 #define NET_QUIC_QUIC_ACK_NOTIFIER_H_ | 6 #define NET_QUIC_QUIC_ACK_NOTIFIER_H_ |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.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 // Used to register with a QuicConnection for notification once a set of packets | 13 // Used to register with a QuicConnection for notification once a set of packets |
14 // have all been ACKed. | 14 // have all been ACKed. |
15 // The connection informs this class of newly ACKed sequence numbers, and once | 15 // The connection informs this class of newly ACKed sequence numbers, and once |
16 // we have seen ACKs for all the sequence numbers we are interested in, we | 16 // we have seen ACKs for all the sequence numbers we are interested in, we |
17 // trigger a call to a provided Closure. | 17 // trigger a call to a provided Closure. |
18 class NET_EXPORT_PRIVATE QuicAckNotifier { | 18 class NET_EXPORT_PRIVATE QuicAckNotifier { |
19 public: | 19 public: |
20 class NET_EXPORT_PRIVATE DelegateInterface | 20 class NET_EXPORT_PRIVATE DelegateInterface |
21 : public base::RefCounted<DelegateInterface> { | 21 : public base::RefCounted<DelegateInterface> { |
22 public: | 22 public: |
23 DelegateInterface(); | 23 DelegateInterface(); |
24 // Args: | 24 // Args: |
25 // num_original_packets - Number of packets in the original transmission. | 25 // num_original_packets - Number of packets in the original transmission. |
26 // num_original_bytes - Number of packets in the original transmission. | 26 // num_original_bytes - Number of packets in the original transmission. |
27 // num_retransmitted_packets - Number of packets that had to be | 27 // num_retransmitted_packets - Number of packets that had to be |
28 // retransmitted. | 28 // retransmitted. |
29 // num_retransmitted_bytes - Number of bytes that had to be retransmitted. | 29 // num_retransmitted_bytes - Number of bytes that had to be retransmitted. |
30 virtual void OnAckNotification(int num_original_packets, | 30 virtual void OnAckNotification(int num_original_packets, |
31 int num_original_bytes, | 31 int num_original_bytes, |
32 int num_retransmitted_packets, | 32 int num_retransmitted_packets, |
33 int num_retransmitted_bytes, | 33 int num_retransmitted_bytes, |
34 QuicTime::Delta delta_largest_observed) = 0; | 34 QuicTime::Delta delta_largest_observed) = 0; |
| 35 |
35 protected: | 36 protected: |
36 friend class base::RefCounted<DelegateInterface>; | 37 friend class base::RefCounted<DelegateInterface>; |
37 | 38 |
38 // Delegates are ref counted. | 39 // Delegates are ref counted. |
39 virtual ~DelegateInterface(); | 40 virtual ~DelegateInterface(); |
40 }; | 41 }; |
41 | 42 |
42 // QuicAckNotifier is expected to keep its own reference to the delegate. | 43 // QuicAckNotifier is expected to keep its own reference to the delegate. |
43 explicit QuicAckNotifier(DelegateInterface* delegate); | 44 explicit QuicAckNotifier(DelegateInterface* delegate); |
44 virtual ~QuicAckNotifier(); | 45 virtual ~QuicAckNotifier(); |
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92 int retransmitted_packet_count_; | 93 int retransmitted_packet_count_; |
93 // Number of bytes that had to be retransmitted. | 94 // Number of bytes that had to be retransmitted. |
94 int retransmitted_byte_count_; | 95 int retransmitted_byte_count_; |
95 | 96 |
96 DISALLOW_COPY_AND_ASSIGN(QuicAckNotifier); | 97 DISALLOW_COPY_AND_ASSIGN(QuicAckNotifier); |
97 }; | 98 }; |
98 | 99 |
99 }; // namespace net | 100 }; // namespace net |
100 | 101 |
101 #endif // NET_QUIC_QUIC_ACK_NOTIFIER_H_ | 102 #endif // NET_QUIC_QUIC_ACK_NOTIFIER_H_ |
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