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Side by Side Diff: net/quic/quic_ack_notifier_manager.cc

Issue 266243004: Clang format slam. Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 7 months ago
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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 #include "net/quic/quic_ack_notifier_manager.h" 5 #include "net/quic/quic_ack_notifier_manager.h"
6 6
7 #include <stddef.h> 7 #include <stddef.h>
8 #include <list> 8 #include <list>
9 #include <map> 9 #include <map>
10 #include <utility> 10 #include <utility>
11 #include <vector> 11 #include <vector>
12 12
13 #include "base/stl_util.h" 13 #include "base/stl_util.h"
14 #include "net/quic/quic_ack_notifier.h" 14 #include "net/quic/quic_ack_notifier.h"
15 #include "net/quic/quic_protocol.h" 15 #include "net/quic/quic_protocol.h"
16 16
17 namespace net { 17 namespace net {
18 18
19 AckNotifierManager::AckNotifierManager() {} 19 AckNotifierManager::AckNotifierManager() {
20 }
20 21
21 AckNotifierManager::~AckNotifierManager() { 22 AckNotifierManager::~AckNotifierManager() {
22 STLDeleteElements(&ack_notifiers_); 23 STLDeleteElements(&ack_notifiers_);
23 } 24 }
24 25
25 void AckNotifierManager::OnPacketAcked( 26 void AckNotifierManager::OnPacketAcked(QuicPacketSequenceNumber sequence_number,
26 QuicPacketSequenceNumber sequence_number, 27 QuicTime::Delta delta_largest_observed) {
27 QuicTime::Delta delta_largest_observed) {
28 // Inform all the registered AckNotifiers of the new ACK. 28 // Inform all the registered AckNotifiers of the new ACK.
29 AckNotifierMap::iterator map_it = ack_notifier_map_.find(sequence_number); 29 AckNotifierMap::iterator map_it = ack_notifier_map_.find(sequence_number);
30 if (map_it == ack_notifier_map_.end()) { 30 if (map_it == ack_notifier_map_.end()) {
31 // No AckNotifier is interested in this sequence number. 31 // No AckNotifier is interested in this sequence number.
32 return; 32 return;
33 } 33 }
34 34
35 // One or more AckNotifiers are registered as interested in this sequence 35 // One or more AckNotifiers are registered as interested in this sequence
36 // number. Iterate through them and call OnAck on each. 36 // number. Iterate through them and call OnAck on each.
37 for (AckNotifierSet::iterator set_it = map_it->second.begin(); 37 for (AckNotifierSet::iterator set_it = map_it->second.begin();
38 set_it != map_it->second.end(); ++set_it) { 38 set_it != map_it->second.end();
39 ++set_it) {
39 QuicAckNotifier* ack_notifier = *set_it; 40 QuicAckNotifier* ack_notifier = *set_it;
40 ack_notifier->OnAck(sequence_number, delta_largest_observed); 41 ack_notifier->OnAck(sequence_number, delta_largest_observed);
41 42
42 // If this has resulted in an empty AckNotifer, erase it. 43 // If this has resulted in an empty AckNotifer, erase it.
43 if (ack_notifier->IsEmpty()) { 44 if (ack_notifier->IsEmpty()) {
44 delete ack_notifier; 45 delete ack_notifier;
45 ack_notifiers_.erase(ack_notifier); 46 ack_notifiers_.erase(ack_notifier);
46 } 47 }
47 } 48 }
48 49
49 // Remove the sequence number from the map as we have notified all the 50 // Remove the sequence number from the map as we have notified all the
50 // registered AckNotifiers, and we won't see it again. 51 // registered AckNotifiers, and we won't see it again.
51 ack_notifier_map_.erase(map_it); 52 ack_notifier_map_.erase(map_it);
52 } 53 }
53 54
54 void AckNotifierManager::UpdateSequenceNumber( 55 void AckNotifierManager::UpdateSequenceNumber(
55 QuicPacketSequenceNumber old_sequence_number, 56 QuicPacketSequenceNumber old_sequence_number,
56 QuicPacketSequenceNumber new_sequence_number) { 57 QuicPacketSequenceNumber new_sequence_number) {
57 AckNotifierMap::iterator map_it = ack_notifier_map_.find(old_sequence_number); 58 AckNotifierMap::iterator map_it = ack_notifier_map_.find(old_sequence_number);
58 if (map_it != ack_notifier_map_.end()) { 59 if (map_it != ack_notifier_map_.end()) {
59 // We will add an entry to the map for the new sequence number, and move 60 // We will add an entry to the map for the new sequence number, and move
60 // the 61 // the
61 // list of AckNotifiers over. 62 // list of AckNotifiers over.
62 AckNotifierSet new_set; 63 AckNotifierSet new_set;
63 for (AckNotifierSet::iterator notifier_it = map_it->second.begin(); 64 for (AckNotifierSet::iterator notifier_it = map_it->second.begin();
64 notifier_it != map_it->second.end(); ++notifier_it) { 65 notifier_it != map_it->second.end();
66 ++notifier_it) {
65 (*notifier_it) 67 (*notifier_it)
66 ->UpdateSequenceNumber(old_sequence_number, new_sequence_number); 68 ->UpdateSequenceNumber(old_sequence_number, new_sequence_number);
67 new_set.insert(*notifier_it); 69 new_set.insert(*notifier_it);
68 } 70 }
69 ack_notifier_map_[new_sequence_number] = new_set; 71 ack_notifier_map_[new_sequence_number] = new_set;
70 ack_notifier_map_.erase(map_it); 72 ack_notifier_map_.erase(map_it);
71 } 73 }
72 } 74 }
73 75
74 void AckNotifierManager::OnSerializedPacket( 76 void AckNotifierManager::OnSerializedPacket(
75 const SerializedPacket& serialized_packet) { 77 const SerializedPacket& serialized_packet) {
76 // Run through all the frames and if any of them are stream frames and have 78 // Run through all the frames and if any of them are stream frames and have
77 // an AckNotifier registered, then inform the AckNotifier that it should be 79 // an AckNotifier registered, then inform the AckNotifier that it should be
78 // interested in this packet's sequence number. 80 // interested in this packet's sequence number.
79 81
80 RetransmittableFrames* frames = serialized_packet.retransmittable_frames; 82 RetransmittableFrames* frames = serialized_packet.retransmittable_frames;
81 83
82 // AckNotifiers can only be attached to retransmittable frames. 84 // AckNotifiers can only be attached to retransmittable frames.
83 if (!frames) { 85 if (!frames) {
84 return; 86 return;
85 } 87 }
86 88
87 for (QuicFrames::const_iterator it = frames->frames().begin(); 89 for (QuicFrames::const_iterator it = frames->frames().begin();
88 it != frames->frames().end(); ++it) { 90 it != frames->frames().end();
91 ++it) {
89 if (it->type == STREAM_FRAME && it->stream_frame->notifier != NULL) { 92 if (it->type == STREAM_FRAME && it->stream_frame->notifier != NULL) {
90 QuicAckNotifier* notifier = it->stream_frame->notifier; 93 QuicAckNotifier* notifier = it->stream_frame->notifier;
91 94
92 // The AckNotifier needs to know it is tracking this packet's sequence 95 // The AckNotifier needs to know it is tracking this packet's sequence
93 // number. 96 // number.
94 notifier->AddSequenceNumber(serialized_packet.sequence_number, 97 notifier->AddSequenceNumber(serialized_packet.sequence_number,
95 serialized_packet.packet->length()); 98 serialized_packet.packet->length());
96 99
97 // Update the mapping in the other direction, from sequence 100 // Update the mapping in the other direction, from sequence
98 // number to AckNotifier. 101 // number to AckNotifier.
99 ack_notifier_map_[serialized_packet.sequence_number].insert(notifier); 102 ack_notifier_map_[serialized_packet.sequence_number].insert(notifier);
100 103
101 // Take ownership of the AckNotifier. 104 // Take ownership of the AckNotifier.
102 ack_notifiers_.insert(notifier); 105 ack_notifiers_.insert(notifier);
103 } 106 }
104 } 107 }
105 } 108 }
106 109
107 } // namespace net 110 } // namespace net
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