From d64c8e75f6c3b6895f51036e5d16ad696dfe0f66 Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Mon, 4 Aug 2008 17:06:47 +0000
Subject: 2008-08-05  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>

	Implemented download speed based URI selection algorithm.
	Introduced new option --uri-selector.
	If --uri-selector=feedback is given, aria2 uses download speed
observed
	in the previous downloads and chooses fastest server in the URI
list.
	Currently at most 10 URIs are considered to introduce
randomeness for
	finding better servers. The speed is average download speed in
the
	downloads.
	On the other hand, if --uri-selector=inorder is given, which is
default,
	URI is tried in order in URI list.
	The usage text for the new option has not been written yet.
	* src/AbstractCommand.cc
	* src/DownloadCommand.cc
	* src/DownloadEngine.cc
	* src/DownloadEngineFactory.cc
	* src/InOrderURISelector.cc
	* src/InOrderURISelector.h
	* src/OptionHandlerFactory.cc
	* src/PeerStat.h
	* src/RequestGroup.cc
	* src/RequestGroup.h
	* src/RequestGroupMan.cc
	* src/RequestGroupMan.h
	* src/SegmentMan.cc
	* src/SegmentMan.h
	* src/ServerStat.cc
	* src/ServerStat.h
	* src/ServerStatMan.cc
	* src/ServerStatMan.h
	* src/ServerStatURISelector.cc
	* src/ServerStatURISelector.h
	* src/URISelector.h
	* src/option_processing.cc
	* src/prefs.cc
	* src/prefs.h
	* test/InOrderURISelectorTest.cc
	* test/RequestGroupManTest.cc
	* test/ServerStatManTest.cc
	* test/ServerStatURISelectorTest.cc
---
 src/ServerStat.h | 108 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 src/ServerStat.h

(limited to 'src/ServerStat.h')

diff --git a/src/ServerStat.h b/src/ServerStat.h
new file mode 100644
index 00000000..7f31ea93
--- /dev/null
+++ b/src/ServerStat.h
@@ -0,0 +1,108 @@
+/* <!-- copyright */
+/*
+ * aria2 - The high speed download utility
+ *
+ * Copyright (C) 2006 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 --> */
+#ifndef _D_SERVER_STAT_H_
+#define _D_SERVER_STAT_H_
+#include "common.h"
+#include "TimeA2.h"
+#include <string>
+#include <iosfwd>
+
+namespace aria2 {
+
+// ServerStatMan: has many ServerStat
+// URISelector: interface
+// ServerStatURISelector: Has a reference of ServerStatMan
+// InOrderURISelector: this is default.
+class ServerStat {
+public:
+  enum STATUS {
+    OK,
+    ERROR
+  };
+
+  ServerStat(const std::string& hostname, const std::string& protocol);
+
+  ~ServerStat();
+
+  const std::string& getHostname() const;
+
+  const std::string& getProtocol() const;
+
+  Time getLastUpdated() const;
+
+  void setLastUpdated(const Time& time);
+
+  unsigned int getDownloadSpeed() const;
+
+  // update download speed and update _lastUpdated
+  void updateDownloadSpeed(unsigned int downloadSpeed);
+
+  // set download speed. This method doesn't update _lastUpdate.
+  void setDownloadSpeed(unsigned int downloadSpeed);
+
+  void setStatus(STATUS status);
+
+  STATUS getStatus() const;
+
+  bool isOK() const;
+
+  // set status OK and update _lastUpdated
+  void setOK();
+
+  bool isError() const;
+
+  // set status ERROR and update _lastUpdated
+  void setError();
+
+  bool operator<(const ServerStat& serverStat) const;
+
+  bool operator==(const ServerStat& serverStat) const;
+private:
+  std::string _hostname;
+  
+  std::string _protocol;
+
+  unsigned int _downloadSpeed;
+
+  STATUS _status;
+
+  Time _lastUpdated;
+};
+
+std::ostream& operator<<(std::ostream& o, const ServerStat& serverStat);
+
+} // namespace aria2
+
+#endif // _D_SERVER_STAT_H_
-- 
cgit