2010-06-12 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>

	Made protected member variable private. Added accessor funcs.
	* src/DHTAbstractNodeLookupTask.cc
	* src/DHTAbstractNodeLookupTask.h
	* src/DHTAbstractTask.h
	* src/DHTBucketRefreshTask.cc
	* src/DHTNodeLookupTask.cc
	* src/DHTNodeLookupTask.h
	* src/DHTPeerLookupTask.cc
	* src/DHTPeerLookupTask.h
	* src/DHTPingTask.cc
	* src/DHTPingTask.h
	* src/DHTReplaceNodeTask.cc
	* src/DHTReplaceNodeTask.h

12 files changed, 145 insertions, 79 deletions

diff --git a/src/DHTAbstractNodeLookupTask.cc b/src/DHTAbstractNodeLookupTask.cc
index ace56915..5edb1719 100644
--- a/src/DHTAbstractNodeLookupTask.cc
+++ b/src/DHTAbstractNodeLookupTask.cc
@@ -51,13 +51,15 @@
 
 namespace aria2 {
 
-DHTAbstractNodeLookupTask::DHTAbstractNodeLookupTask(const unsigned char* targetID):
+DHTAbstractNodeLookupTask::DHTAbstractNodeLookupTask
+(const unsigned char* targetID):
   _inFlightMessage(0)
 {
   memcpy(_targetID, targetID, DHT_ID_LENGTH);
 }
 
-void DHTAbstractNodeLookupTask::onReceived(const SharedHandle<DHTMessage>& message)
+void DHTAbstractNodeLookupTask::onReceived
+(const SharedHandle<DHTMessage>& message)
 {
   --_inFlightMessage;
   onReceivedInternal(message);
@@ -69,23 +71,25 @@ void DHTAbstractNodeLookupTask::onReceived(const SharedHandle<DHTMessage>& messa
   size_t count = 0;
   for(std::vector<SharedHandle<DHTNodeLookupEntry> >::const_iterator i =
         newEntries.begin(), eoi = newEntries.end(); i != eoi; ++i) {
-    if(memcmp(_localNode->getID(), (*i)->_node->getID(), DHT_ID_LENGTH) != 0) {
+    if(memcmp(getLocalNode()->getID(), (*i)->_node->getID(),
+              DHT_ID_LENGTH) != 0) {
       _entries.push_front(*i);
       ++count;
-      if(_logger->debug()) {
-        _logger->debug("Received nodes: id=%s, ip=%s",
-                       util::toHex((*i)->_node->getID(), DHT_ID_LENGTH).c_str(),
-                       (*i)->_node->getIPAddress().c_str());
+      if(getLogger()->debug()) {
+        getLogger()->debug("Received nodes: id=%s, ip=%s",
+                           util::toHex((*i)->_node->getID(),
+                                       DHT_ID_LENGTH).c_str(),
+                           (*i)->_node->getIPAddress().c_str());
       }
     }
   }
-  if(_logger->debug()) {
-    _logger->debug("%u node lookup entries added.", count);
+  if(getLogger()->debug()) {
+    getLogger()->debug("%u node lookup entries added.", count);
   }
   std::stable_sort(_entries.begin(), _entries.end(), DHTIDCloser(_targetID));
   _entries.erase(std::unique(_entries.begin(), _entries.end()), _entries.end());
-  if(_logger->debug()) {
-    _logger->debug("%u node lookup entries are unique.", _entries.size());
+  if(getLogger()->debug()) {
+    getLogger()->debug("%u node lookup entries are unique.", _entries.size());
   }
   if(_entries.size() > DHTBucket::K) {
     _entries.erase(_entries.begin()+DHTBucket::K, _entries.end());
@@ -95,9 +99,9 @@ void DHTAbstractNodeLookupTask::onReceived(const SharedHandle<DHTMessage>& messa
 
 void DHTAbstractNodeLookupTask::onTimeout(const SharedHandle<DHTNode>& node)
 {
-  if(_logger->debug()) {
-    _logger->debug("node lookup message timeout for node ID=%s",
-                   util::toHex(node->getID(), DHT_ID_LENGTH).c_str());
+  if(getLogger()->debug()) {
+    getLogger()->debug("node lookup message timeout for node ID=%s",
+                       util::toHex(node->getID(), DHT_ID_LENGTH).c_str());
   }
   --_inFlightMessage;
   for(std::deque<SharedHandle<DHTNodeLookupEntry> >::iterator i =
@@ -116,18 +120,18 @@ void DHTAbstractNodeLookupTask::sendMessageAndCheckFinish()
     sendMessage();
   }
   if(_inFlightMessage == 0) {
-    if(_logger->debug()) {
-      _logger->debug("Finished node_lookup for node ID %s",
-                     util::toHex(_targetID, DHT_ID_LENGTH).c_str());
+    if(getLogger()->debug()) {
+      getLogger()->debug("Finished node_lookup for node ID %s",
+                         util::toHex(_targetID, DHT_ID_LENGTH).c_str());
     }
     onFinish();
     updateBucket();
-    _finished = true;
+    setFinished(true);
   } else {
-    if(_logger->debug()) {
-      _logger->debug("%d in flight message for node ID %s",
-                     _inFlightMessage,
-                     util::toHex(_targetID, DHT_ID_LENGTH).c_str());
+    if(getLogger()->debug()) {
+      getLogger()->debug("%d in flight message for node ID %s",
+                         _inFlightMessage,
+                         util::toHex(_targetID, DHT_ID_LENGTH).c_str());
     }
   }
 }
@@ -142,8 +146,9 @@ void DHTAbstractNodeLookupTask::sendMessage()
       (*i)->_used = true;
       SharedHandle<DHTMessage> m = createMessage((*i)->_node);
       WeakHandle<DHTMessageCallbackListener> listener(this);
-      SharedHandle<DHTMessageCallback> callback(new DHTMessageCallbackImpl(listener));
-      _dispatcher->addMessageToQueue(m, callback);
+      SharedHandle<DHTMessageCallback> callback
+        (new DHTMessageCallbackImpl(listener));
+      getMessageDispatcher()->addMessageToQueue(m, callback);
     }
   }
 }
@@ -156,20 +161,20 @@ void DHTAbstractNodeLookupTask::updateBucket()
 void DHTAbstractNodeLookupTask::startup()
 {
   std::vector<SharedHandle<DHTNode> > nodes;
-  _routingTable->getClosestKNodes(nodes, _targetID);
+  getRoutingTable()->getClosestKNodes(nodes, _targetID);
   _entries.clear();
   toEntries(_entries, nodes);
   if(_entries.empty()) {
-    _finished = true;
+    setFinished(true);
   } else {
     // TODO use RTT here
     _inFlightMessage = 0;
     sendMessage();
     if(_inFlightMessage == 0) {
-      if(_logger->debug()) {
-        _logger->debug("No message was sent in this lookup stage. Finished.");
+      if(getLogger()->debug()) {
+        getLogger()->debug("No message was sent in this lookup stage. Finished.");
       }
-      _finished = true;
+      setFinished(true);
     }
   }
 }
diff --git a/src/DHTAbstractNodeLookupTask.h b/src/DHTAbstractNodeLookupTask.h
index 824b7e0a..0846b557 100644
--- a/src/DHTAbstractNodeLookupTask.h
+++ b/src/DHTAbstractNodeLookupTask.h
@@ -49,8 +49,9 @@ namespace aria2 {
 class DHTNode;
 class DHTMessage;
 
-class DHTAbstractNodeLookupTask:public DHTAbstractTask, public DHTMessageCallbackListener {
-protected:
+class DHTAbstractNodeLookupTask:public DHTAbstractTask,
+                                public DHTMessageCallbackListener {
+private:
   unsigned char _targetID[DHT_ID_LENGTH];
 
   std::deque<SharedHandle<DHTNodeLookupEntry> > _entries;
@@ -73,6 +74,16 @@ protected:
   void updateBucket();
 
   void sendMessageAndCheckFinish();
+protected:
+  const unsigned char* getTargetID() const
+  {
+    return _targetID;
+  }
+
+  const std::deque<SharedHandle<DHTNodeLookupEntry> >& getEntries() const
+  {
+    return _entries;
+  }
 public:
   DHTAbstractNodeLookupTask(const unsigned char* targetID);
 
@@ -93,7 +104,8 @@ public:
   
   virtual void onFinish() {}
 
-  virtual SharedHandle<DHTMessage> createMessage(const SharedHandle<DHTNode>& remoteNode) = 0;
+  virtual SharedHandle<DHTMessage> createMessage
+  (const SharedHandle<DHTNode>& remoteNode) = 0;
 };
 
 } // namespace aria2
diff --git a/src/DHTAbstractTask.h b/src/DHTAbstractTask.h
index 06225e54..5154dd69 100644
--- a/src/DHTAbstractTask.h
+++ b/src/DHTAbstractTask.h
@@ -51,7 +51,7 @@ class DHTTaskQueue;
 class Logger;
 
 class DHTAbstractTask:public DHTTask {
-protected:
+private:
   bool _finished;
   
   Logger* _logger;
@@ -65,19 +65,54 @@ protected:
   WeakHandle<DHTMessageFactory> _factory;
   
   WeakHandle<DHTTaskQueue> _taskQueue;
+protected:
+  void setFinished(bool f)
+  {
+    _finished = f;
+  }
+
+  Logger* getLogger() const
+  {
+    return _logger;
+  }
 public:
   DHTAbstractTask();
 
   virtual bool finished();
 
+  const WeakHandle<DHTRoutingTable>& getRoutingTable() const
+  {
+    return _routingTable;
+  }
+
   void setRoutingTable(const WeakHandle<DHTRoutingTable> routingTable);
 
+  const WeakHandle<DHTMessageDispatcher>& getMessageDispatcher() const
+  {
+    return _dispatcher;
+  }
+
   void setMessageDispatcher(const WeakHandle<DHTMessageDispatcher> dispatcher);
 
+  const WeakHandle<DHTMessageFactory>& getMessageFactory() const
+  {
+    return _factory;
+  }
+
   void setMessageFactory(const WeakHandle<DHTMessageFactory> factory);
 
+  const WeakHandle<DHTTaskQueue>& getTaskQueue() const
+  {
+    return _taskQueue;
+  }
+
   void setTaskQueue(const WeakHandle<DHTTaskQueue> taskQueue);
 
+  const SharedHandle<DHTNode>& getLocalNode() const
+  {
+    return _localNode;
+  }
+
   void setLocalNode(const SharedHandle<DHTNode>& localNode);
 };
 
diff --git a/src/DHTBucketRefreshTask.cc b/src/DHTBucketRefreshTask.cc
index 29baec72..3640297d 100644
--- a/src/DHTBucketRefreshTask.cc
+++ b/src/DHTBucketRefreshTask.cc
@@ -52,7 +52,7 @@ DHTBucketRefreshTask::~DHTBucketRefreshTask() {}
 void DHTBucketRefreshTask::startup()
 {
   std::vector<SharedHandle<DHTBucket> > buckets;
-  _routingTable->getBuckets(buckets);
+  getRoutingTable()->getBuckets(buckets);
   for(std::vector<SharedHandle<DHTBucket> >::iterator i = buckets.begin(),
         eoi = buckets.end(); i != eoi; ++i) {
     if(_forceRefresh || (*i)->needsRefresh()) {
@@ -60,17 +60,18 @@ void DHTBucketRefreshTask::startup()
       unsigned char targetID[DHT_ID_LENGTH];
       (*i)->getRandomNodeID(targetID);
       SharedHandle<DHTNodeLookupTask> task(new DHTNodeLookupTask(targetID));
-      task->setRoutingTable(_routingTable);
-      task->setMessageDispatcher(_dispatcher);
-      task->setMessageFactory(_factory);
-      task->setTaskQueue(_taskQueue);
-      task->setLocalNode(_localNode);
+      task->setRoutingTable(getRoutingTable());
+      task->setMessageDispatcher(getMessageDispatcher());
+      task->setMessageFactory(getMessageFactory());
+      task->setTaskQueue(getTaskQueue());
+      task->setLocalNode(getLocalNode());
 
-      _logger->info("Dispating bucket refresh. targetID=%s", util::toHex(targetID, DHT_ID_LENGTH).c_str());
-      _taskQueue->addPeriodicTask1(task);
+      getLogger()->info("Dispating bucket refresh. targetID=%s",
+                        util::toHex(targetID, DHT_ID_LENGTH).c_str());
+      getTaskQueue()->addPeriodicTask1(task);
     }
   }
-  _finished = true;
+  setFinished(true);
 }
 
 void DHTBucketRefreshTask::setForceRefresh(bool forceRefresh)
diff --git a/src/DHTNodeLookupTask.cc b/src/DHTNodeLookupTask.cc
index ae816c90..82cbb481 100644
--- a/src/DHTNodeLookupTask.cc
+++ b/src/DHTNodeLookupTask.cc
@@ -62,7 +62,7 @@ DHTNodeLookupTask::getNodesFromMessage
 SharedHandle<DHTMessage>
 DHTNodeLookupTask::createMessage(const SharedHandle<DHTNode>& remoteNode)
 {
-  return _factory->createFindNodeMessage(remoteNode, _targetID);
+  return getMessageFactory()->createFindNodeMessage(remoteNode, getTargetID());
 }
 
 } // namespace aria2
diff --git a/src/DHTNodeLookupTask.h b/src/DHTNodeLookupTask.h
index e0f59edf..bf20a60a 100644
--- a/src/DHTNodeLookupTask.h
+++ b/src/DHTNodeLookupTask.h
@@ -46,7 +46,8 @@ public:
   virtual void getNodesFromMessage(std::vector<SharedHandle<DHTNode> >& nodes,
                                    const SharedHandle<DHTMessage>& message);
 
-  virtual SharedHandle<DHTMessage> createMessage(const SharedHandle<DHTNode>& remoteNode);
+  virtual SharedHandle<DHTMessage> createMessage
+  (const SharedHandle<DHTNode>& remoteNode);
 };
 
 } // namespace aria2
diff --git a/src/DHTPeerLookupTask.cc b/src/DHTPeerLookupTask.cc
index 946915a9..66408d57 100644
--- a/src/DHTPeerLookupTask.cc
+++ b/src/DHTPeerLookupTask.cc
@@ -66,23 +66,25 @@ DHTPeerLookupTask::getNodesFromMessage
   }
 }
   
-void DHTPeerLookupTask::onReceivedInternal(const SharedHandle<DHTMessage>& message)
+void DHTPeerLookupTask::onReceivedInternal
+(const SharedHandle<DHTMessage>& message)
 {
-  SharedHandle<DHTGetPeersReplyMessage> m(dynamic_pointer_cast<DHTGetPeersReplyMessage>(message));
+  SharedHandle<DHTGetPeersReplyMessage> m
+    (dynamic_pointer_cast<DHTGetPeersReplyMessage>(message));
   if(m.isNull()) {
     return;
   }
   SharedHandle<DHTNode> remoteNode = m->getRemoteNode();
-  _tokenStorage[util::toHex(remoteNode->getID(), DHT_ID_LENGTH)] = m->getToken();
-
+  _tokenStorage[util::toHex(remoteNode->getID(), DHT_ID_LENGTH)] =
+    m->getToken();
   _peerStorage->addPeer(m->getValues());
   _peers.insert(_peers.end(), m->getValues().begin(), m->getValues().end());
-  _logger->info("Received %u peers.", m->getValues().size());
+  getLogger()->info("Received %u peers.", m->getValues().size());
 }
   
 SharedHandle<DHTMessage> DHTPeerLookupTask::createMessage(const SharedHandle<DHTNode>& remoteNode)
 {
-  return _factory->createGetPeersMessage(remoteNode, _targetID);
+  return getMessageFactory()->createGetPeersMessage(remoteNode, getTargetID());
 }
 
 void DHTPeerLookupTask::onFinish()
@@ -90,17 +92,17 @@ void DHTPeerLookupTask::onFinish()
   // send announce_peer message to K closest nodes
   size_t num = DHTBucket::K;
   for(std::deque<SharedHandle<DHTNodeLookupEntry> >::const_iterator i =
-        _entries.begin(), eoi = _entries.end(); i != eoi && num > 0; ++i,
-        --num) {
+        getEntries().begin(), eoi = getEntries().end();
+      i != eoi && num > 0; ++i, --num) {
     if((*i)->_used) {
       const SharedHandle<DHTNode>& node = (*i)->_node;
       SharedHandle<DHTMessage> m = 
-        _factory->createAnnouncePeerMessage
+        getMessageFactory()->createAnnouncePeerMessage
         (node,
-         _targetID, // this is infoHash
+         getTargetID(), // this is infoHash
          _btRuntime->getListenPort(),
          _tokenStorage[util::toHex(node->getID(), DHT_ID_LENGTH)]);
-      _dispatcher->addMessageToQueue(m);
+      getMessageDispatcher()->addMessageToQueue(m);
     }
   }
 }
diff --git a/src/DHTPeerLookupTask.h b/src/DHTPeerLookupTask.h
index c80c0e67..fe07b4bf 100644
--- a/src/DHTPeerLookupTask.h
+++ b/src/DHTPeerLookupTask.h
@@ -62,7 +62,8 @@ public:
   
   virtual void onReceivedInternal(const SharedHandle<DHTMessage>& message);
   
-  virtual SharedHandle<DHTMessage> createMessage(const SharedHandle<DHTNode>& remoteNode);
+  virtual SharedHandle<DHTMessage> createMessage
+  (const SharedHandle<DHTNode>& remoteNode);
 
   virtual void onFinish();
   
diff --git a/src/DHTPingTask.cc b/src/DHTPingTask.cc
index c13e6227..cdae2948 100644
--- a/src/DHTPingTask.cc
+++ b/src/DHTPingTask.cc
@@ -42,7 +42,8 @@
 
 namespace aria2 {
 
-DHTPingTask::DHTPingTask(const SharedHandle<DHTNode>& remoteNode, size_t numMaxRetry):
+DHTPingTask::DHTPingTask
+(const SharedHandle<DHTNode>& remoteNode, size_t numMaxRetry):
   _remoteNode(remoteNode),
   _numMaxRetry(numMaxRetry),
   _numRetry(0),
@@ -54,16 +55,18 @@ DHTPingTask::~DHTPingTask() {}
 
 void DHTPingTask::startup()
 {
-  SharedHandle<DHTMessage> m = _factory->createPingMessage(_remoteNode);
+  SharedHandle<DHTMessage> m =
+    getMessageFactory()->createPingMessage(_remoteNode);
   WeakHandle<DHTMessageCallbackListener> listener(this);
-  SharedHandle<DHTMessageCallback> callback(new DHTMessageCallbackImpl(listener));
-  _dispatcher->addMessageToQueue(m, _timeout, callback);
+  SharedHandle<DHTMessageCallback> callback
+    (new DHTMessageCallbackImpl(listener));
+  getMessageDispatcher()->addMessageToQueue(m, _timeout, callback);
 }
 
 void DHTPingTask::onReceived(const SharedHandle<DHTMessage>& message)
 {
   _pingSuccessful = true;
-  _finished = true;
+  setFinished(true);
 }
 
 void DHTPingTask::onTimeout(const SharedHandle<DHTNode>& node)
@@ -71,12 +74,14 @@ void DHTPingTask::onTimeout(const SharedHandle<DHTNode>& node)
   ++_numRetry;
   if(_numRetry >= _numMaxRetry) {
     _pingSuccessful = false;
-    _finished = true;
+    setFinished(true);
   } else {
-    SharedHandle<DHTMessage> m = _factory->createPingMessage(_remoteNode);
+    SharedHandle<DHTMessage> m =
+      getMessageFactory()->createPingMessage(_remoteNode);
     WeakHandle<DHTMessageCallbackListener> listener(this);
-    SharedHandle<DHTMessageCallback> callback(new DHTMessageCallbackImpl(listener));
-    _dispatcher->addMessageToQueue(m, _timeout, callback);
+    SharedHandle<DHTMessageCallback> callback
+      (new DHTMessageCallbackImpl(listener));
+    getMessageDispatcher()->addMessageToQueue(m, _timeout, callback);
   }
 }
 
diff --git a/src/DHTPingTask.h b/src/DHTPingTask.h
index d08162d6..47ad9c2c 100644
--- a/src/DHTPingTask.h
+++ b/src/DHTPingTask.h
@@ -42,7 +42,7 @@
 namespace aria2 {
 
 class DHTPingTask:public DHTAbstractTask, public DHTMessageCallbackListener {
-protected:
+private:
   SharedHandle<DHTNode> _remoteNode;
 
   size_t _numMaxRetry;
diff --git a/src/DHTReplaceNodeTask.cc b/src/DHTReplaceNodeTask.cc
index d9c9512f..d9c68bc6 100644
--- a/src/DHTReplaceNodeTask.cc
+++ b/src/DHTReplaceNodeTask.cc
@@ -62,34 +62,37 @@ void DHTReplaceNodeTask::sendMessage()
 {
   SharedHandle<DHTNode> questionableNode = _bucket->getLRUQuestionableNode();
   if(questionableNode.isNull()) {
-    _finished = true;
+    setFinished(true);
   } else {
-    SharedHandle<DHTMessage> m = _factory->createPingMessage(questionableNode);
+    SharedHandle<DHTMessage> m =
+      getMessageFactory()->createPingMessage(questionableNode);
     WeakHandle<DHTMessageCallbackListener> listener(this);
-    SharedHandle<DHTMessageCallback> callback(new DHTMessageCallbackImpl(listener));
-    _dispatcher->addMessageToQueue(m, _timeout, callback);
+    SharedHandle<DHTMessageCallback> callback
+      (new DHTMessageCallbackImpl(listener));
+    getMessageDispatcher()->addMessageToQueue(m, _timeout, callback);
   }
 }
 
 void DHTReplaceNodeTask::onReceived(const SharedHandle<DHTMessage>& message)
 {
-  _logger->info("ReplaceNode: Ping reply received from %s.",
-                message->getRemoteNode()->toString().c_str());
-  _finished = true;
+  getLogger()->info("ReplaceNode: Ping reply received from %s.",
+                    message->getRemoteNode()->toString().c_str());
+  setFinished(true);
 }
 
 void DHTReplaceNodeTask::onTimeout(const SharedHandle<DHTNode>& node)
 {
   ++_numRetry;
   if(_numRetry >= MAX_RETRY) {
-    _logger->info("ReplaceNode: Ping failed %u times. Replace %s with %s.",
-                  _numRetry, node->toString().c_str(), _newNode->toString().c_str());
+    getLogger()->info("ReplaceNode: Ping failed %u times. Replace %s with %s.",
+                      _numRetry, node->toString().c_str(),
+                      _newNode->toString().c_str());
     node->markBad();
     _bucket->addNode(_newNode);
-    _finished = true;
+    setFinished(true);
   } else {
-    _logger->info("ReplaceNode: Ping reply timeout from %s. Try once more.",
-                  node->toString().c_str());
+    getLogger()->info("ReplaceNode: Ping reply timeout from %s. Try once more.",
+                      node->toString().c_str());
     sendMessage();
   }
 }
diff --git a/src/DHTReplaceNodeTask.h b/src/DHTReplaceNodeTask.h
index f9a3a0ae..efa40f69 100644
--- a/src/DHTReplaceNodeTask.h
+++ b/src/DHTReplaceNodeTask.h
@@ -43,7 +43,8 @@ namespace aria2 {
 
 class DHTBucket;
 
-class DHTReplaceNodeTask:public DHTAbstractTask, public DHTMessageCallbackListener {
+class DHTReplaceNodeTask:public DHTAbstractTask,
+                         public DHTMessageCallbackListener {
 private:
   SharedHandle<DHTBucket> _bucket;