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clientbacklogmanager.cpp
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20 
21 #include "clientbacklogmanager.h"
22 
24 #include "backlogsettings.h"
25 #include "backlogrequester.h"
26 #include "client.h"
27 
28 #include <ctime>
29 
30 #include <QDebug>
31 
34  : BacklogManager(parent),
35  _requester(0),
36  _initBacklogRequested(false)
37 {
38 }
39 
40 
41 QVariantList ClientBacklogManager::requestBacklog(BufferId bufferId, MsgId first, MsgId last, int limit, int additional)
42 {
43  _buffersRequested << bufferId;
44  return BacklogManager::requestBacklog(bufferId, first, last, limit, additional);
45 }
46 
47 
48 void ClientBacklogManager::receiveBacklog(BufferId bufferId, MsgId first, MsgId last, int limit, int additional, QVariantList msgs)
49 {
50  Q_UNUSED(first) Q_UNUSED(last) Q_UNUSED(limit) Q_UNUSED(additional)
51 
52  emit messagesReceived(bufferId, msgs.count());
53 
54  MessageList msglist;
55  foreach(QVariant v, msgs) {
56  Message msg = v.value<Message>();
57  msg.setFlags(msg.flags() | Message::Backlog);
58  msglist << msg;
59  }
60 
61  if (isBuffering()) {
62  bool lastPart = !_requester->buffer(bufferId, msglist);
64  if (lastPart) {
67  }
68  }
69  else {
70  dispatchMessages(msglist);
71  }
72 }
73 
74 
75 void ClientBacklogManager::receiveBacklogAll(MsgId first, MsgId last, int limit, int additional, QVariantList msgs)
76 {
77  Q_UNUSED(first) Q_UNUSED(last) Q_UNUSED(limit) Q_UNUSED(additional)
78 
79  MessageList msglist;
80  foreach(QVariant v, msgs) {
81  Message msg = v.value<Message>();
82  msg.setFlags(msg.flags() | Message::Backlog);
83  msglist << msg;
84  }
85 
86  dispatchMessages(msglist);
87 }
88 
89 
91 {
93  Q_ASSERT(_requester);
94  qWarning() << "ClientBacklogManager::requestInitialBacklog() called twice in the same session! (Backlog has already been requested)";
95  return;
96  }
97 
98  BacklogSettings settings;
99  switch (settings.requesterType()) {
102  break;
105  break;
107  default:
108  _requester = new FixedBacklogRequester(this);
109  };
110 
112  _initBacklogRequested = true;
113  if (_requester->isBuffering()) {
115  }
116 }
117 
118 
120 {
121  BufferIdList newBuffers;
122  QSet<BufferId> availableBuffers = Client::networkModel()->allBufferIds().toSet();
123  foreach(BufferId bufferId, bufferIds) {
124  if (_buffersRequested.contains(bufferId) || !availableBuffers.contains(bufferId))
125  continue;
126  newBuffers << bufferId;
127  }
128  return newBuffers;
129 }
130 
131 
132 void ClientBacklogManager::checkForBacklog(const QList<BufferId> &bufferIds)
133 {
134  // we ingore all backlogrequests until we had our initial request
135  if (!_initBacklogRequested) {
136  return;
137  }
138 
139  if (!_requester) {
140  // during client start up this message is to be expected in some situations.
141  qDebug() << "ClientBacklogManager::checkForBacklog(): no active backlog requester.";
142  return;
143  }
144  switch (_requester->type()) {
146  break;
149  default:
150  {
151  BufferIdList buffers = filterNewBufferIds(bufferIds);
152  if (!buffers.isEmpty())
153  _requester->requestBacklog(buffers);
154  }
155  };
156 }
157 
158 
160 {
161  return _requester && _requester->isBuffering();
162 }
163 
164 
165 void ClientBacklogManager::dispatchMessages(const MessageList &messages, bool sort)
166 {
167  if (messages.isEmpty())
168  return;
169 
170  MessageList msgs = messages;
171 
172  clock_t start_t = clock();
173  if (sort)
174  qSort(msgs);
176  clock_t end_t = clock();
177 
178  emit messagesProcessed(tr("Processed %1 messages in %2 seconds.").arg(messages.count()).arg((float)(end_t - start_t) / CLOCKS_PER_SEC));
179 }
180 
181 
183 {
184  delete _requester;
185  _requester = 0;
186  _initBacklogRequested = false;
187  _buffersRequested.clear();
188 }