| 1 | /* ======================================================================== *\
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| 2 | !
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| 3 | ! *
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| 4 | ! * This file is part of MARS, the MAGIC Analysis and Reconstruction
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| 5 | ! * Software. It is distributed to you in the hope that it can be a useful
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| 6 | ! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
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| 7 | ! * It is distributed WITHOUT ANY WARRANTY.
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| 8 | ! *
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| 9 | ! * Permission to use, copy, modify and distribute this software and its
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| 10 | ! * documentation for any purpose is hereby granted without fee,
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| 11 | ! * provided that the above copyright notice appear in all copies and
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| 12 | ! * that both that copyright notice and this permission notice appear
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| 13 | ! * in supporting documentation. It is provided "as is" without express
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| 14 | ! * or implied warranty.
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| 15 | ! *
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| 16 | !
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| 17 | !
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| 18 | ! Author(s): Thomas Bretz 12/2000 <mailto:tbretz@uni-sw.gwdg.de>
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| 19 | !
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| 20 | ! Copyright: MAGIC Software Development, 2000-2001
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| 21 | !
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| 22 | !
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| 23 | \* ======================================================================== */
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| 24 |
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| 25 |
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| 26 | //////////////////////////////////////////////////////////////////////////////
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| 27 | // //
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| 28 | // MEvtLoop //
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| 29 | // //
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| 30 | // This class is the core of each event processing. //
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| 31 | // First you must set the parameter list to use. The parameter list //
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| 32 | // must contain the task list (MTaskList) to use. The name of the task //
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| 33 | // list can be specified if you call Eventloop. The standard name is //
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| 34 | // "MTaskList". The name you specify must match the name of the MTaskList //
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| 35 | // object. //
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| 36 | // //
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| 37 | // If you call Eventloop first all PreProcess functions - with the //
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| 38 | // parameter list as an argument - of the tasks in the task list are //
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| 39 | // executed. If one of them returns kFALSE then the execution is stopped. //
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| 40 | // If the preprocessing was ok. The Process funtion of the tasks are //
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| 41 | // as long as one function returns kSTOP. Only the tasks which are marked //
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| 42 | // marked as "All" or with a string which matches the MInputStreamID of //
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| 43 | // MTaskList are executed. If one tasks returns kCONTINUE the pending //
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| 44 | // tasks in the list are skipped and the execution in continued with //
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| 45 | // the first one in the list. //
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| 46 | // Afterwards the PostProcess functions are executed. //
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| 47 | // //
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| 48 | // //
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| 49 | // Maybe we can add a TProgressMeter sometimes later to be able to show //
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| 50 | // the progress graphically... //
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| 51 | // //
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| 52 | // //
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| 53 | //////////////////////////////////////////////////////////////////////////////
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| 54 | #include "MEvtLoop.h"
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| 55 |
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| 56 | #include <iostream.h>
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| 57 |
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| 58 | #include <TSystem.h>
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| 59 | #include <TStopwatch.h>
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| 60 | #include <TGProgressBar.h>
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| 61 |
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| 62 | #include "MLog.h"
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| 63 | #include "MLogManip.h"
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| 64 |
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| 65 | #include "MParList.h"
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| 66 | #include "MTaskList.h"
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| 67 |
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| 68 | ClassImp(MEvtLoop);
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| 69 |
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| 70 |
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| 71 | //!
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| 72 | //! Maybe we can add a static parameter list to MEvtLoop
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| 73 | //! Also we can derive MEvtLoop from MTaskList to have a static tasklist, too
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| 74 | //!
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| 75 |
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| 76 | // --------------------------------------------------------------------------
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| 77 | //
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| 78 | // default constructor - emty
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| 79 | //
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| 80 | MEvtLoop::MEvtLoop() : fParList(NULL), fProgress(NULL)
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| 81 | {
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| 82 | }
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| 83 |
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| 84 | // --------------------------------------------------------------------------
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| 85 | //
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| 86 | // default destructor - emty
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| 87 | //
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| 88 | MEvtLoop::~MEvtLoop()
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| 89 | {
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| 90 | if (TestBit(kIsOwner) && fParList)
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| 91 | delete fParList;
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| 92 | }
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| 93 |
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| 94 | // --------------------------------------------------------------------------
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| 95 | //
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| 96 | // if you set the Eventloop as owner the destructor of the given parameter
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| 97 | // list is calles by the destructor of MEvtLoop, otherwise not.
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| 98 | //
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| 99 | void MEvtLoop::SetOwner(Bool_t enable)
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| 100 | {
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| 101 | enable ? SetBit(kIsOwner) : ResetBit(kIsOwner);
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| 102 | }
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| 103 |
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| 104 | // --------------------------------------------------------------------------
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| 105 | //
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| 106 | // The proprocessing part of the eventloop. Be careful, this is
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| 107 | // for developers or use in special jobs only!
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| 108 | //
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| 109 | Bool_t MEvtLoop::PreProcess(const char *tlist)
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| 110 | {
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| 111 | //
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| 112 | // check if the needed parameter list is set.
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| 113 | //
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| 114 | if (!fParList)
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| 115 | {
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| 116 | *fLog << err << dbginf << "Parlist not initialized." << endl;
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| 117 | return kFALSE;
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| 118 | }
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| 119 |
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| 120 | //
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| 121 | // check for the existance of the specified task list
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| 122 | // the default name is "MTaskList"
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| 123 | //
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| 124 | fTaskList = (MTaskList*)fParList->FindObject(tlist);
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| 125 | if (!fTaskList)
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| 126 | {
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| 127 | *fLog << err << dbginf << "Cannot find tasklist '" << tlist << "' in parameter list." << endl;
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| 128 | return kFALSE;
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| 129 | }
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| 130 |
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| 131 | if (fLog != &gLog)
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| 132 | fParList ->SetLogStream(fLog);
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| 133 |
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| 134 | //
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| 135 | // execute the preprocess of all tasks
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| 136 | // connect the different tasks with the right containers in
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| 137 | // the parameter list
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| 138 | //
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| 139 | if (!fTaskList->PreProcess(fParList))
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| 140 | {
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| 141 | *fLog << err << "Error detected while PreProcessing" << endl;
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| 142 | return kFALSE;
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| 143 | }
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| 144 |
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| 145 | *fLog << endl;
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| 146 |
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| 147 | return kTRUE;
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| 148 | }
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| 149 |
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| 150 | // --------------------------------------------------------------------------
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| 151 | //
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| 152 | // The processing part of the eventloop. Be careful, this is
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| 153 | // for developers or use in special jobs only!
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| 154 | //
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| 155 | void MEvtLoop::Process(Int_t maxcnt) const
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| 156 | {
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| 157 | //
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| 158 | // loop over all events and process all tasks for
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| 159 | // each event
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| 160 | //
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| 161 | *fLog << all <<"Eventloop running (";
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| 162 |
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| 163 | if (maxcnt<0)
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| 164 | *fLog << "all";
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| 165 | else
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| 166 | *fLog << dec << maxcnt;
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| 167 |
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| 168 | *fLog << " events)..." << flush;
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| 169 |
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| 170 | if (fProgress && maxcnt>0)
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| 171 | fProgress->SetRange(0, maxcnt);
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| 172 |
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| 173 | Int_t dummy = maxcnt<0 ? 0 : maxcnt;
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| 174 |
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| 175 | //
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| 176 | // start a stopwatch
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| 177 | //
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| 178 | TStopwatch clock;
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| 179 | clock.Start();
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| 180 |
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| 181 | //
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| 182 | // This is the MAIN EVENTLOOP which processes the data
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| 183 | // if maxcnt<0 the number of processed events is counted
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| 184 | // else only maxcnt events are processed
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| 185 | //
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| 186 | if (maxcnt<0)
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| 187 | // process first and increment if sucessfull
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| 188 | if (fProgress)
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| 189 | while (fTaskList->Process())
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| 190 | {
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| 191 | fProgress->SetPosition(++dummy);
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| 192 | gSystem->ProcessEvents();
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| 193 | }
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| 194 | else
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| 195 | while (fTaskList->Process()) dummy++;
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| 196 | else
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| 197 | // check for number and break if unsuccessfull
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| 198 | if (fProgress)
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| 199 | while (dummy-- && fTaskList->Process())
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| 200 | {
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| 201 | fProgress->SetPosition(maxcnt - dummy);
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| 202 | gSystem->ProcessEvents();
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| 203 |
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| 204 | // gClient->ProcessEventsFor(fProgress);
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| 205 | //
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| 206 | // root 3.02:
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| 207 | // * gui/: inc/TGClient.h, src/TGClient.cxx:
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| 208 | // new method ProcessEventsFor(TGWindow *w). Use this method to instead
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| 209 | // of TSystem::ProcessEvents() in case you want to allow on events for
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| 210 | // the specified TGWindow to be processed (like when this is a progress
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| 211 | // meter dialog).
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| 212 | }
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| 213 | else
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| 214 | while (dummy-- && fTaskList->Process());
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| 215 |
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| 216 | //
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| 217 | // stop stop-watch, print results
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| 218 | //
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| 219 | clock.Stop();
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| 220 |
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| 221 | *fLog << all << "Ready!" << endl << endl;
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| 222 |
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| 223 | *fLog << dec << endl << "CPU - "
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| 224 | << "Time: " << clock.CpuTime() << "s"
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| 225 | << " for " << (maxcnt<0?dummy:maxcnt) << " Events"
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| 226 | << " --> " << (maxcnt<0?dummy:maxcnt)/clock.CpuTime() << " Events/s"
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| 227 | << endl;
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| 228 | *fLog << "Real - "
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| 229 | << "Time: " << clock.RealTime() << "s"
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| 230 | << " for " << (maxcnt<0?dummy:maxcnt) << " Events"
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| 231 | << " --> " << (maxcnt<0?dummy:maxcnt)/clock.RealTime() << " Events/s"
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| 232 | << endl << endl;
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| 233 | }
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| 234 |
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| 235 | // --------------------------------------------------------------------------
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| 236 | //
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| 237 | // The postprocessing part of the eventloop. Be careful, this is
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| 238 | // for developers or use in special jobs only!
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| 239 | //
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| 240 | Bool_t MEvtLoop::PostProcess() const
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| 241 | {
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| 242 | //
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| 243 | // execute the post process of all tasks
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| 244 | //
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| 245 | return fTaskList->PostProcess();
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| 246 | }
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| 247 |
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| 248 | // --------------------------------------------------------------------------
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| 249 | //
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| 250 | // See class description above.
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| 251 | //
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| 252 | Bool_t MEvtLoop::Eventloop(Int_t maxcnt, const char *tlist)
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| 253 | {
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| 254 | Bool_t rc = PreProcess();
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| 255 |
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| 256 | //
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| 257 | // If all Tasks were PreProcesses successfully start Processing.
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| 258 | //
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| 259 | if (rc)
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| 260 | Process(maxcnt);
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| 261 |
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| 262 | //
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| 263 | // Now postprocess all tasks. Only successfully preprocessed tasks are
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| 264 | // postprocessed. If the Postprocessing of one task fail return an error.
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| 265 | //
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| 266 | if (!PostProcess())
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| 267 | return kFALSE;
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| 268 |
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| 269 | //
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| 270 | // If postprocessing of all preprocessed tasks was sucefully return rc.
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| 271 | // This gives an error in case the preprocessing has failed already.
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| 272 | // Otherwise the eventloop is considered: successfully.
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| 273 | //
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| 274 | return rc;
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| 275 | }
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| 276 |
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