2009-01-24 Tatsuhiro Tsujikawa <t-tujikawa@users.sourceforge.net>

Replaced FileAllocationMan with
	SequentialPicker<FileAllocationEntry>.
	* src/BtCheckIntegrityEntry.cc
	* src/ConsoleStatCalc.cc
	* src/DownloadEngine.cc
	* src/DownloadEngine.h
	* src/DownloadEngineFactory.cc
	* src/FileAllocationCommand.cc
	* src/FileAllocationDispatcherCommand.cc
	* src/FileAllocationMan.h
	* src/Makefile.am
	* src/SequentialPicker.h
	* src/StatCalc.h
	* src/StreamCheckIntegrityEntry.cc
	* test/Makefile.am
	* test/SequentialPickerTest.cc

src/SequentialPicker.h

@@ -0,0 +1,96 @@
+/* <!-- copyright */
+/*
+ * aria2 - The high speed download utility
+ *
+ * Copyright (C) 2009 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_SEQUENTIAL_PICKER_H_
+#define _D_SEQUENTIAL_PICKER_H_
+
+#include "common.h"
+
+#include <deque>
+
+#include "SharedHandle.h"
+
+namespace aria2 {
+
+template<typename T>
+class SequentialPicker {
+private:
+  std::deque<SharedHandle<T> > _entries;
+  SharedHandle<T> _pickedEntry;
+public:
+  bool isPicked() const
+  {
+    return !_pickedEntry.isNull();
+  }
+
+  SharedHandle<T> getPickedEntry() const
+  {
+    return _pickedEntry;
+  }
+
+  void dropPickedEntry()
+  {
+    _pickedEntry.reset();
+  }
+
+  bool hasNext() const
+  {
+    return !_entries.empty();
+  }
+
+  SharedHandle<T> pickNext()
+  {
+    SharedHandle<T> r;
+    if(hasNext()) {
+      r = _entries.front();
+      _entries.pop_front();
+      _pickedEntry = r;
+    }
+    return r;
+  }
+
+  void pushEntry(const SharedHandle<T>& entry)
+  {
+    _entries.push_back(entry);
+  }
+
+  size_t countEntryInQueue() const
+  {
+    return _entries.size();
+  }
+};
+
+} // namespace aria2
+
+#endif // _D_SEQUENTIAL_PICKER_H_