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Contents, Tools, Query Logging, Decoding Query Logs

Decoding Query Logs

Query logs are stored in a compact binary format to avoid these files becoming unworkably large.

A prebuilt exe for decoding query logs is provided with the full version of the SDK, at: 'SDKRoot/bin/DecodeQueryLog.exe'.
Source code for this exe is included in the source archives, in the 'DecodeQueryLog' project.

Running the decoder

The decoder looks for a file 'queryLog.bin', in the current directory, and outputs a readable xml file 'queryLog.xml', also to the current directory.
If 'queryLog.xml' already exists then this file will be overwritten.

Example output

<queryLog>
	<methodEntry queryIndex="0" thisPointer="0x1007d6e4" timeStamp="2005 Tuesday 18 13:00:10 217" interface="iPathEngine" method="getInterfaceMajorVersion"/>
	<methodExit queryIndex="0" thisPointer="0x1007d6e4" timeStamp="2005 Tuesday 18 13:00:10 217" interface="iPathEngine" method="getInterfaceMajorVersion">
		<tSigned32 name="returnValue" value="2"/>
	</methodExit>
	<methodEntry queryIndex="1" thisPointer="0x1007d6e4" timeStamp="2005 Tuesday 18 13:00:10 217" interface="iPathEngine" method="getInterfaceMinorVersion"/>
	<methodExit queryIndex="1" thisPointer="0x1007d6e4" timeStamp="2005 Tuesday 18 13:00:10 217" interface="iPathEngine" method="getInterfaceMinorVersion">
		<tSigned32 name="returnValue" value="38"/>
	</methodExit>
	<methodEntry queryIndex="2" thisPointer="0x1007d6e4" timeStamp="2005 Tuesday 18 13:00:10 217" interface="iPathEngine" method="getReleaseNumber"/>
	<methodExit queryIndex="2" thisPointer="0x1007d6e4" timeStamp="2005 Tuesday 18 13:00:10 217" interface="iPathEngine" method="getReleaseNumber">
		<tSigned32 name="returnValue" value="4"/>
	</methodExit>
	<methodEntry queryIndex="3" thisPointer="0x1007d6e4" timeStamp="2005 Tuesday 18 13:00:10 217" interface="iPathEngine" method="getVersionAttributes"/>
	<methodExit queryIndex="3" thisPointer="0x1007d6e4" timeStamp="2005 Tuesday 18 13:00:10 217" interface="iPathEngine" method="getVersionAttributes">
		<attributes name="returnValue" _buildstring="2005-10-07 10:22" _release="4" _minor_release="64001" _interface_major_version="2" _interface_minor_version="38" _collision_preprocess_major_version="2" _collision_preprocess_minor_version="0" _pathfind_preprocess_major_version="3" _pathfind_preprocess_minor_version="0" _memory_tracking_enabled="true"/>
	</methodExit>
</queryLog>

Log format

At this stage the log formats are not set in stone, for both the binary and xml versions, so this is something that may change in the future.

Documentation for PathEngine release 5.17 - Copyright © 2002-2008 PathEnginenext: API Reference