2010-02-20 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>

	Added Local Peer Discovery. It is disabled by default. Use
	--bt-enable-lpd to enable the function.
	* src/BtConstants.h
	* src/BtSetup.cc
	* src/LpdDispatchMessageCommand.cc
	* src/LpdDispatchMessageCommand.h
	* src/LpdMessage.h
	* src/LpdMessageDispatcher.cc
	* src/LpdMessageDispatcher.h
	* src/LpdMessageReceiver.cc
	* src/LpdMessageReceiver.h
	* src/LpdReceiveMessageCommand.cc
	* src/LpdReceiveMessageCommand.h
	* src/Makefile.am
	* src/OptionHandlerFactory.cc
	* src/Peer.cc
	* src/Peer.h
	* src/PeerInteractionCommand.cc
	* src/SocketCore.cc
	* src/SocketCore.h
	* src/prefs.cc
	* src/prefs.h
	* src/usage_text.h
	* src/util.cc
	* src/util.h
	* test/LpdMessageDispatcherTest.cc
	* test/LpdMessageReceiverTest.cc
	* test/Makefile.am

1 files changed, 88 insertions, 0 deletions

diff --git a/src/LpdDispatchMessageCommand.cc b/src/LpdDispatchMessageCommand.cc
new file mode 100644
index 00000000..b469935d
--- /dev/null
+++ b/src/LpdDispatchMessageCommand.cc
@@ -0,0 +1,88 @@
+/* <!-- copyright */
+/*
+ * aria2 - The high speed download utility
+ *
+ * Copyright (C) 2010 Tatsuhiro Tsujikawa
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL.  If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so.  If you
+ * do not wish to do so, delete this exception statement from your
+ * version.  If you delete this exception statement from all source
+ * files in the program, then also delete it here.
+ */
+/* copyright --> */
+#include "LpdDispatchMessageCommand.h"
+#include "LpdMessageDispatcher.h"
+#include "DownloadEngine.h"
+#include "BtRuntime.h"
+#include "Logger.h"
+#include "RecoverableException.h"
+#include "SocketCore.h"
+#include "util.h"
+
+namespace aria2 {
+
+LpdDispatchMessageCommand::LpdDispatchMessageCommand
+(int cuid,
+ const SharedHandle<LpdMessageDispatcher>& dispatcher,
+ DownloadEngine* e):
+  Command(cuid),
+  _dispatcher(dispatcher),
+  _e(e),
+  _tryCount(0) {}
+
+bool LpdDispatchMessageCommand::execute()
+{
+  if(_btRuntime->isHalt()) {
+    return true;
+  }
+  if(_dispatcher->isAnnounceReady()) {
+    try {
+      logger->info("Dispatching LPD message for infohash=%s",
+                   util::toHex(_dispatcher->getInfoHash()).c_str());
+      if(_dispatcher->sendMessage()) {
+        logger->info("Sending LPD message is complete.");
+        _dispatcher->resetAnnounceTimer();
+        _tryCount = 0;
+      } else {
+        ++_tryCount;
+        if(_tryCount >= 5) {
+          logger->info("Sending LPD message %u times but all failed.");
+          _dispatcher->resetAnnounceTimer();
+          _tryCount = 0;
+        } else {
+          logger->info("Could not send LPD message, retry shortly.");
+        }
+      }
+    } catch(RecoverableException& e) {
+      logger->info("Failed to send LPD message.", e);
+      _dispatcher->resetAnnounceTimer();
+      _tryCount = 0;
+    }
+  }
+  _e->commands.push_back(this);
+  return false;
+}
+
+} // namespace aria2