class TProofLite: public TProof

 Create a PROOF environment. Starting PROOF involves either connecting
 to a master server, which in turn will start a set of slave servers, or
 directly starting as master server (if master = ""). Masterurl is of
 the form: [proof[s]://]host[:port]. Conffile is the name of the config
 file describing the remote PROOF cluster (this argument alows you to
 describe different cluster configurations).
 The default is proof.conf. Confdir is the directory where the config
 file and other PROOF related files are (like motd and noproof files).
 Loglevel is the log level (default = 1). User specified custom config
 files will be first looked for in $HOME/.conffile.

 Start the PROOF environment. Starting PROOF involves either connecting
 to a master server, which in turn will start a set of slave servers, or
 directly starting as master server (if master = ""). For a description
 of the arguments see the TProof ctor. Returns the number of started
 master or slave servers, returns 0 in case of error, in which case
 fValid remains false.

 Destructor

 Static method to determine the number of workers giving priority to users request.
 Otherwise use the system information, if available, or just start
 the minimal number, i.e. 2 .

 Start up PROOF workers.

 Notify setting-up operation message

 Create environment files for worker 'ord'

 Resolve some keywords in 's'
    <logfilewrk>, <user>, <rootsys>, <cpupin>

 Create the sandbox for this session

 Print status of PROOF-Lite cluster.

 Create a TProofQueryResult instance for this query.

 Set query in running state.

 Execute the specified drawing action on a data set (TDSet).
 Event- or Entry-lists should be set in the data set object using
 TDSet::SetEntryList.
 Returns -1 in case of error or number of selected events otherwise.

 Process a data set (TDSet) using the specified selector (.C) file.
 Entry- or event-lists should be set in the data set object using
 TDSet::SetEntryList.
 The return value is -1 in case of error and TSelector::GetStatus() in
 in case of success.

 Create in each worker sandbox symlinks to the files in the list
 Used to make the cache information available to workers.

 Initialize the dataset manager from directives or from defaults
 Return 0 on success, -1 on failure

 List contents of file cache. If all is true show all caches also on
 slaves. If everything is ok all caches are to be the same.

 Remove files from all file caches.

 Copy the specified macro in the cache directory. The macro file is
 uploaded if new or updated. If existing, the corresponding header
 basename(macro).h or .hh, is also uploaded. For the other arguments
 see TProof::Load().
 Returns 0 in case of success and -1 in case of error.

 Copy a macro, and its possible associated .h[h] file,
 to the cache directory, from where the workers can get the file.
 If headerRequired is 1, return -1 in case the header is not found.
 If headerRequired is 0, try to copy header too.
 If headerRequired is -1, don't look for header, only copy macro.
 If the selector pionter is not 0, consider the macro to be a selector
 and try to load the selector and set it to the pointer.
 The mask 'opt' is an or of ESendFileOpt:
       kCpBin   (0x8)     Retrieve from the cache the binaries associated
                          with the file
       kCp      (0x10)    Retrieve the files from the cache
 Return -1 in case of error, 0 otherwise.

 Remove old sessions dirs keep at most 'Proof.MaxOldSessions' (default 10)

 Get the list of queries.

 Register the 'dataSet' on the cluster under the current
 user, group and the given 'dataSetName'.
 Fails if a dataset named 'dataSetName' already exists, unless 'optStr'
 contains 'O', in which case the old dataset is overwritten.
 If 'optStr' contains 'V' the dataset files are verified (default no
 verification).
 Returns kTRUE on success.

 Set/Change the name of the default tree. The tree name may contain
 subdir specification in the form "subdir/name".
 Returns 0 on success, -1 otherwise.

 Returns kTRUE if 'dataset' described by 'uri' exists, kFALSE otherwise

 lists all datasets that match given uri

 Shows datasets in locations that match the uri
 By default shows the user's datasets and global ones

 Get a list of TFileInfo objects describing the files of the specified
 dataset.

 Remove the specified dataset from the PROOF cluster.
 Files are not deleted.

 Allows users to request staging of a particular dataset. Requests are
 saved in a special dataset repository and must be honored by the endpoint.
 This is the special PROOF-Lite re-implementation of the TProof function
 and includes code originally implemented in TProofServ.

 Cancels a dataset staging request. Returns kTRUE on success, kFALSE on
 failure. Dataset not found equals to a failure. PROOF-Lite
 re-implementation of the equivalent function in TProofServ.

 Obtains a TFileCollection showing the staging status of the specified
 dataset. A valid dataset manager and dataset staging requests repository
 must be present on the endpoint. PROOF-Lite version of the equivalent
 function from TProofServ.

 Verify if all files in the specified dataset are available.
 Print a list and return the number of missing files.

 Clear the content of the dataset cache, if any (matching 'dataset', if defined).

 Display the content of the dataset cache, if any (matching 'dataset', if defined).

 Make sure that the input data objects are available to the workers in a
 dedicated file in the cache; the objects are taken from the dedicated list
 and / or the specified file.
 If the fInputData is empty the specified file is sent over.
 If there is no specified file, a file named "inputdata.root" is created locally
 with the content of fInputData and sent over to the master.
 If both fInputData and the specified file are not empty, a copy of the file
 is made locally and augmented with the content of fInputData.

 Handle remove request.

 Creates a tree header (a tree with nonexisting files) object for
 the DataSet.

 Add to the fUniqueSlave list the active slaves that have a unique
 (user) file system image. This information is used to transfer files
 only once to nodes that share a file system (an image). Submasters
 which are not in fUniqueSlaves are put in the fNonUniqueMasters
 list. That list is used to trigger the transferring of files to
 the submaster's unique slaves without the need to transfer the file
 to the submaster.

 List contents of the data directory in the sandbox.
 This is the place where files produced by the client queries are kept

 List contents of the data directory 'dirname'

 Process via TSelector