TProofServ


class description - source file - inheritance tree

class TProofServ : public TApplication

    private:
Int_t CatMotd() void Info(const char* method, const char* msgfmt) const void RedirectOutput() void Setup() protected:
public:
TProofServ TProofServ(int* argc, char** argv) TProofServ TProofServ(TProofServ&) virtual void ~TProofServ() static TClass* Class() TObject* Get(const char* namecycle) const char* GetConfDir() const const char* GetConfFile() const Float_t GetCpuTime() const Stat_t GetEntriesProcessed() const Int_t GetGroupId() const Int_t GetGroupSize() const void GetLimits(Int_t dim, Int_t nentries, Int_t* nbins, Double_t* vmin, Double_t* vmax) Int_t GetLogLevel() const Bool_t GetNextPacket(Int_t& nentries, Stat_t& firstentry) virtual void GetOptions(int* argc, char** argv) Int_t GetOrdinal() const Int_t GetProtocol() const Float_t GetRealTime() const const char* GetService() const TSocket* GetSocket() const const char* GetUser() const void HandleSigPipe() void HandleSocketInput() void HandleUrgentData() void Interrupt() virtual TClass* IsA() const static Bool_t IsActive() Bool_t IsMaster() const Bool_t IsParallel() const virtual void Print(Option_t* option) const Int_t ReceiveFile(const char* file, Bool_t bin, Long_t size) void Reset(const char* dir) virtual void Run(Bool_t retrn = kFALSE) void SendLogFile(Int_t status = 0) void SendStatus() virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b) virtual void Terminate(int status) static TProofServ* This()

Data Members

private:
TString fService service we are running, either "proofserv" or "proofslave" TString fUser user as which we run TString fPasswd encoded passwd info for slaves TString fConfDir directory containing cluster config information TString fConfFile file containing config information TString fLogDir directory containing log files TSocket* fSocket socket connection to client FILE* fLogFile log file Int_t fProtocol protocol version number Int_t fOrdinal slave ordinal number, -1 for master Int_t fGroupId slave unique id in the active slave group Int_t fGroupSize size of the active slave group Int_t fLogLevel debug logging level Bool_t fMasterServ true if we are a master server Int_t fNcmd command history number Bool_t fInterrupt if true macro execution will be stopped Float_t fRealTime real time spent executing commands Float_t fCpuTime CPU time spent executing commands Stat_t fEntriesProcessed total number of entries processed (obtained via GetNextPacket) public:

Class Description

                                                                      
 TProofServ                                                           
                                                                      
 TProofServ is the PROOF server. It can act either as the master      
 server or as a slave server, depending on its startup arguments. It  
 receives and handles message coming from the client or from the      
 master server.                                                       
                                                                      


TProofServ(int *argc, char **argv) : TApplication("proofserv", argc, argv)
 Create an application environment. The TProofServ environment provides
 an eventloop via inheritance of TApplication.

~TProofServ()
 Cleanup. Not really necessary since after this dtor there is no
 live anyway.

Int_t CatMotd()
 Print message of the day (in fConfDir/proof/etc/motd). The motd
 is not shown more than once a dat. If the file fConfDir/proof/etc/noproof
 exists, show its contents and close the connection.

TObject* Get(const char *namecycle)
 Get object with name "name;cycle" (e.g. "aap;2") from master or client.
 This method is called by TDirectory::Get() in case the object can not
 be found locally.

void GetLimits(Int_t dim, Int_t nentries, Int_t *nbins, Double_t *vmin, Double_t *vmax)
 Get limits of histogram from master. This method is called by
 TTree::TakeEstimate().

Bool_t GetNextPacket(Int_t &nentries, Stat_t &firstentry)
 Get next range of entries to be processed on this server.

void GetOptions(int *argc, char **argv)
 Get and handle command line options. Fixed format:
 "proofserv"|"proofslave" <confdir>

void HandleSocketInput()
 Handle input coming from the client or from the master server.

void HandleUrgentData()
 Handle Out-Of-Band data sent by the master or client.

void HandleSigPipe()
 Called when the client is not alive anymore (i.e. when kKeepAlive
 has failed).

void Info(const char *location, const char *va_(fmt), ...) const
 Issue informational message. Use "location" to specify the method
 where the info was issued. Accepts standard printf formatting arguments.
 Should be moved into TObject.

Bool_t IsParallel() const
 True if in parallel mode.

void Print(Option_t *) const
 Print status of slave server.

void RedirectOutput()
 Redirect stdout to a log file. This log file will be flushed to the
 client or master after each command.

void Reset(const char *dir)
 Reset PROOF environment to be ready for execution of next command.

Int_t ReceiveFile(const char *file, Bool_t bin, Long_t size)
 Receive a file, either sent by a client or a master server.
 If bin is true it is a binary file, other wise it is an ASCII
 file and we need to check for Windows r tokens. Returns -1 in
 case of error, 0 otherwise.

void Run(Bool_t retrn)
 Main server eventloop.

void SendLogFile(Int_t status)
 Send log file to master.

void SendStatus()
 Send status of slave server to master or client.

void Setup()
 Print the ProofServ logo on standard output.

void Terminate(int status)
 Terminate the proof server.

Bool_t IsActive()
 Static function that returns kTRUE in case we are a PROOF server.

TProofServ* This()
 Static function returning pointer to global object gProofServ.
 Mainly for use via CINT, where the gProofServ symbol might be
 deleted from the symbol table.



Inline Functions


        const char* GetService() const
        const char* GetConfDir() const
        const char* GetConfFile() const
        const char* GetUser() const
              Int_t GetProtocol() const
              Int_t GetOrdinal() const
              Int_t GetGroupId() const
              Int_t GetGroupSize() const
              Int_t GetLogLevel() const
           TSocket* GetSocket() const
            Float_t GetRealTime() const
            Float_t GetCpuTime() const
               void Interrupt()
             Bool_t IsMaster() const
             Stat_t GetEntriesProcessed() const
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
         TProofServ TProofServ(TProofServ&)


Author: Fons Rademakers 16/02/97
Last update: root/proof:$Name: $:$Id: TProofServ.cxx,v 1.12 2001/01/26 16:40:40 rdm Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *


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