*) Intended readers:

The servicedbgen tool is intended to be used during Symbian rom
creation for prepopulating  Qt Serviceframework databases. It is not a
tool for normal runtime or application usage,  although it may be
useful also for development or testing purposes.

*) Overview:

The servicedbgen tool is a command line application to populate Qt
Serviceframework databases.  The tool takes XML files describing the
service, and produces SQLite databases.  Services can  be added and
removed.

Servicedbgen runs on the cross-compiling machine (i.e. Windows or
Linux) and is delivered as a prebuilt  application along with the SDK,
or must compiled with host tools. It can be invoked  from the command
line or by directives in your project's .pro-file. Qmake and make can
then run the tool automatically. The latter approach is used at Symbian
rom creation time.

*) Design:

The tool uses the same servicedatabase creation components as the Qt 
Serviceframework. Therefore whenever the tool is rebuilt, it reflects
the latest changes in database components.

There are two operating modes, individual and batch mode. In individual
mode, the tool is given individual XML files as input. In batch mode,
the tool reads XML files from a given directory, or from a default
directory if none given. The tool uses Nokia Vendor ID as the security
token when adding the services. If an application needs to change the
preinstalled services during runtime, it needs to be  equipped with
Nokia Vendor ID.

Services that require initialization prior to their first usage (e.g.
to initialize databases etc.)  can set a parameter.  QServiceManager
will call QServicePluginInterface::installService() when the service is
loaded first time when QServiceManager::loadInterface() is called.

The tool supports WINSCW emulator and hardware targets. The resulting
databases are identical, but the locations differ (see Appendix). 

*) Command line use

The usage of the tool is as follows:

servicedbgen [options] <command> [command parameters]

To see the list of all available options,  type 'servicedbgen --help'.

Basic usage examples:
 - registering service1 and service2 for winscw target:
        servicedbgen -twinscw add service1.xml service2.xml
 - registering service1 for all targets, service requesting initialization:
        servicedbgen -tall -i add service1.xml
 - unregistering service1 from all targets:
        servicedbgen -tall remove service1.xml
 - registering all services for armv5 from default descriptor path:
        servicedbgen -tall -b -c add
 - registering services for all targets from specific descriptor path:
        servicedbgen -tall -b add ./mypath/services
 - removing services for all targets from default descriptor path:
        servicedbgen -tall -b remove

The default target, if unspecified, is '-tall'.

*) Project file use

Add following lines to your project's .pro file (inside a
symbian-block):

CONFIG += qtservice                  # qmake magic, causes processing of qtservice.prf
QTSERVICE.DESCRIPTOR = <XML files>   # the list of service descriptor XML files
QTSERVICE.INITIALIZE = yes           # add  this if given descriptors need initialization

----------- Appendix

*) Database locations

Paths to the db. They can not be changed since Qt Serviceframework is
hardcoded to these paths.

"/epoc32/winscw/c/data/temp/QtServiceFW" // Emulator without WDS
"/epoc32/winscw/c/private/2002AC7F/Nokia" // Emulator with WDS
"/epoc32/data/c/private/2002AC7F/Nokia"  // HW

*) Default XML lookup paths

These are the paths where the tool looks for XML files (.xml) if  batch
option was given and no path was specified.

"/epoc32/winscw/c/private/2002AC7F/Nokia/des" // Emulator
"/epoc32/data/z/private/2002AC7F/Nokia/des"   // HW


*) Notes For Symbian ROM images

In the initialization phase, typically first boot, if the database is
not found on the C drive, it is copied from the Z drive.

qtmobility.iby must contain:

data=\epoc32\data\z\private\2002ac7f\QtServiceFramework_4.6_system.db  private\2002ac7f\QtServiceFramework_4.6_system.db

To use servicedbgen when it's not provided as part of SDK these files
should be deployed to:

features\qtservice.meta -> $EPOCROOT\epoc32\tools\makefile_templates\qt
features\qtservice.mk 	-> $EPOCROOT\epoc32\tools\makefile_templates\qt
features\qtservice.prf 	-> $EPOCROOT\epoc32\tools\qt\mkspecs\features\symbian
servicedbgen.exe      	-> $EPOCROOT\epoc32\tools
QtCore4.dll and 	-> $EPOCROOT\epoc32\tools
QtSql4.dll.exe 		-> $EPOCROOT\epoc32\tools
qsqlite4.dll		-> $EPOCROOT\epoc32\tools\sqldrivers