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 (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 << 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 << 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 << "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 << "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 | else
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205 | while (dummy-- && fTaskList->Process());
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206 |
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207 | //
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208 | // stop stop-watch, print results
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209 | //
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210 | clock.Stop();
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211 |
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212 | *fLog << "Ready!" << endl << endl;
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213 |
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214 | clock.Print();
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215 |
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216 | *fLog << dec << endl << "CPU - "
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217 | << "Time: " << clock.CpuTime() << "s"
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218 | << " for " << (maxcnt<0?dummy:maxcnt) << " Events"
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219 | << " --> " << (maxcnt<0?dummy:maxcnt)/clock.CpuTime() << " Events/s"
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220 | << endl;
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221 | *fLog << "Total - "
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222 | << "Time: " << clock.RealTime() << "s"
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223 | << " for " << (maxcnt<0?dummy:maxcnt) << " Events"
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224 | << " --> " << (maxcnt<0?dummy:maxcnt)/clock.RealTime() << " Events/s"
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225 | << endl << endl;
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226 | }
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227 |
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228 | // --------------------------------------------------------------------------
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229 | //
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230 | // The postprocessing part of the eventloop. Be careful, this is
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231 | // for developers or use in special jobs only!
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232 | //
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233 | Bool_t MEvtLoop::PostProcess() const
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234 | {
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235 | //
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236 | // execute the post process of all tasks
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237 | //
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238 | return fTaskList->PostProcess();
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239 | }
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240 |
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241 | // --------------------------------------------------------------------------
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242 | //
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243 | // See class description above.
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244 | //
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245 | Bool_t MEvtLoop::Eventloop(Int_t maxcnt, const char *tlist)
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246 | {
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247 | Bool_t rc = PreProcess();
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248 |
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249 | //
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250 | // If all Tasks were PreProcesses successfully start Processing.
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251 | //
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252 | if (rc)
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253 | Process(maxcnt);
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254 |
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255 | //
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256 | // Now postprocess all tasks. Only successfully preprocessed tasks are
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257 | // postprocessed. If the Postprocessing of one task fail return an error.
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258 | //
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259 | if (!PostProcess())
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260 | return kFALSE;
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261 |
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262 | //
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263 | // If postprocessing of all preprocessed tasks was sucefully return rc.
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264 | // This gives an error in case the preprocessing has failed already.
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265 | // Otherwise the eventloop is considered: successfully.
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266 | //
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267 | return rc;
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268 | }
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269 |
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