new trunk (base for 1.5)

windows build only

Foundation/src/HashStatistic.cpp

@@ -0,0 +1,86 @@
+//
+// HashStatistic.cpp
+//
+// $Id: //poco/1.4/Foundation/src/HashStatistic.cpp#1 $
+//
+// Library: Foundation
+// Package: Hashing
+// Module:  HashStatistic
+//
+// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+// 
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+
+#include "Poco/HashStatistic.h"
+#include <sstream>
+
+namespace Poco {
+
+
+HashStatistic::HashStatistic(
+	UInt32 tableSize, 
+	UInt32 numEntries, 
+	UInt32 numZeroEntries, 
+	UInt32 maxEntry, 
+	std::vector<UInt32> details):
+	_sizeOfTable(tableSize),
+	_numberOfEntries(numEntries),
+	_numZeroEntries(numZeroEntries),
+	_maxEntriesPerHash(maxEntry),
+	_detailedEntriesPerHash(details)
+{
+}
+
+
+HashStatistic::~HashStatistic()
+{
+}
+
+
+std::string HashStatistic::toString() const
+{
+	std::ostringstream str;
+	str << "HashTable of size " << _sizeOfTable << " containing " << _numberOfEntries << " entries:\n";
+	str << "  NumberOfZeroEntries: " << _numZeroEntries << "\n";
+	str << "  MaxEntry: " << _maxEntriesPerHash << "\n";
+	str << "  AvgEntry: " << avgEntriesPerHash() << ", excl Zero slots: " << avgEntriesPerHashExclZeroEntries() << "\n";
+	str << "  DetailedStatistics: \n";
+	for (int i = 0; i < _detailedEntriesPerHash.size(); ++i)
+	{
+		// 10 entries per line
+		if (i % 10 == 0)
+		{
+			str << "\n  " << i << ":";
+		}
+		str << " " << _detailedEntriesPerHash[i];
+	}
+	str << "\n";
+	str.flush();
+	return str.str();
+}
+
+
+} // namespace Poco