/[PAMELA software]/yoda/techmodel/physics/S4Reader.cpp
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Diff of /yoda/techmodel/physics/S4Reader.cpp

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revision 4.0 by kusanagi, Sun Mar 6 04:33:02 2005 UTC revision 4.1 by kusanagi, Wed Mar 16 16:36:23 2005 UTC
# Line 1  Line 1 
1  /** @file  /** @file
2   * $Source: /home/cvsmanager/yoda/techmodel/physics/S4Reader.cpp,v $   * $Source: /home/cvsmanager/yoda/techmodel/physics/S4Reader.cpp,v $
3   * $Id: S4Reader.cpp,v 3.0 2005/03/04 15:54:11 kusanagi Exp $   * $Id: S4Reader.cpp,v 4.0 2005/03/06 04:33:02 kusanagi Exp $
4   * $Author: kusanagi $   * $Author: kusanagi $
5   *   *
6   * Implementation of the S4Reader class.   * Implementation of the S4Reader class.
# Line 29  S4Reader::S4Reader(void): Line 29  S4Reader::S4Reader(void):
29   */   */
30  std::string S4Reader::GetVersionInfo(void) const {  std::string S4Reader::GetVersionInfo(void) const {
31    return    return
32      "$Header: /home/cvsmanager/yoda/techmodel/physics/S4Reader.cpp,v 3.0 2005/03/04 15:54:11 kusanagi Exp $";      "$Header: /home/cvsmanager/yoda/techmodel/physics/S4Reader.cpp,v 4.0 2005/03/06 04:33:02 kusanagi Exp $";
33  }  }
34    
35  /**  /**
# Line 60  void S4Reader::RunEvent(int EventNumber, Line 60  void S4Reader::RunEvent(int EventNumber,
60     int offset;     int offset;
61     int index = haveData(data, length);     int index = haveData(data, length);
62        
63     if (index > -1){     if (index > 0){
64          int offset = length - index;          int offset = length - index;
65          s4->S4_REG_STATUS        = (((UINT8)subData[offset])&0xF0);          s4->S4_REG_STATUS        = (((UINT8)subData[offset])&0xF0);
66          s4->S4_DATA              = ((((UINT16)subData[offset]<<8)&0x0FFF) + (((UINT16)subData[offset+1])&0x00FF));          s4->S4_DATA              = ((((UINT16)subData[offset]<<8)&0x0FFF) + (((UINT16)subData[offset+1])&0x00FF));
# Line 85  void S4Reader::RunEvent(int EventNumber, Line 85  void S4Reader::RunEvent(int EventNumber,
85   * Check if S4Data are present.   * Check if S4Data are present.
86   * @param const char data[] - Physics data   * @param const char data[] - Physics data
87   * @param long int lenght - Lenght of data[]   * @param long int lenght - Lenght of data[]
88   * @return int - -1 if S4 has not been found, otherwise it represent the   * @return int represent the index from the end of data[]
89   *               index from the end of data[] from which S4 data starts   *             from which S4 data starts
90   */   */
91  int S4Reader::haveData(const char data[], long int length){  int S4Reader::haveData(const char data[], long int length){
     int ret = -1;  
92      /* I start 20 bytes from the end because we have three cases:      /* I start 20 bytes from the end because we have three cases:
93       *       *
94       * 1) S4 (4bytes) + NeutronDetector (12bytes) //END PACKET       * 1) S4 (4bytes) + NeutronDetector (12bytes) //END PACKET
# Line 102  int S4Reader::haveData(const char data[] Line 101  int S4Reader::haveData(const char data[]
101       * sholud be the same of the Tracker       * sholud be the same of the Tracker
102       *       *
103       */       */
104      int  index = 0;          
105      char dataByte;      //Check the existence of NeutronDetector data
106      int subIndex = 0;      if (((data[length-1] && data[length - 5] && data[length - 9]) && 0x0F) &&
107      const int subDataDepth = 20;          ((data[length-2] | data[length - 6] | data[length - 10]) == 0x00)) {
108      int offset = length - subDataDepth;          //Chech the existance of S4 data before NeutronDetector
109      const int subSignDim = 3;          if ((data[length-14] && 0x03) && (data[length - 15] && 0x00) &&
110      const unsigned char subSign[subSignDim]={0xD8, 0x00, 0x03};              (data[length - 16] && 0xD8)) return 18;
111      while (index < subDataDepth){        //NeutronDetector data does not exists    
112          dataByte = data[offset + index++];      } else {
113          if (dataByte == (char)(*(subSign+subIndex))){          //Chech the existance of S4 data at the end of the Physics packet
114              if (subIndex++ == (subSignDim-1)) {          if ((data[length-14] && 0x03) && (data[length - 15] && 0x00) &&
115                  //If here i catch it!!!              (data[length - 16] && 0xD8)) return 6;
116                  return subDataDepth - index + subSignDim + 2;      }
117              }      return 0;
         } else {  
             index = index - (subIndex);  
             subIndex = 0;  
         }  
     }  
     return ret;  
118  }  }
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