online_distribution/newbasic/packet_id4scaler.h

0001 #ifndef __PACKET_ID4SCALER_H__
0002 #define __PACKET_ID4SCALER_H__
0003
0004
0005 #include "packet_w124.h"
0006
0007 /**
0008    This is the packet which deals with data in ID4SCALER format.
0009    It inherits from Packet\_w4 because the data are 32bit entities.
0010
0011
0012 Since there is a variety of data contained in that packet, the main interaction with this packet
0013 is through the iValue (channel,"STRING") interface.
0014
0015 The packet contains a num,ber of trigger masks which were valid for this partition.
0016
0017
0018   iValue(0,"NUMBERMASKS") returns the number of masks
0019   iValue(i,"TRIGGERMASK") returns the triggermask i, where 0 <= i < iValue(0,"NUMBERMASKS")
0020
0021 Similarly,
0022
0023   iValue(0,"NUMBERSCALERS") returns the number of scalers valid for this partition.
0024
0025 Then you have 3 sets of scalers.
0026
0027   iValue(i,"RAWSCALERS")
0028   iValue(i,"LIFESCALERS")
0029   iValue(i,"SCALEDSCALERS")
0030
0031 where 0 <= i <  iValue(0,"NUMBERSCALERS")
0032
0033 which return the respective scaler values.
0034
0035 Finally, a more complicated one is the iValue(i,"TIMESTRING") interface. Similar to the IDCSTR
0036 packet. It returns a character string losely modeled after the standard UNIX getc(FILE* fp) interface.
0037
0038 When the string is ended, it returns EOF, so if you are familiar with the construct
0039
0040   int c;
0041   while ( ( c = getc(fp) ) !=EOF ) *str++ = c;
0042
0043 you'll see the similarity with
0044
0045   int i = 0;
0046   while (  ( c = p->iValue(i++,"TIMESTRING") ) != EOF ) *str++ = c;
0047
0048 (p is the pointer to this packet)
0049
0050 In the end, you will have a regular 0-terminated C character string.
0051
0052 */
0053
0054
0055
0056 #ifndef __CINT__
0057 class WINDOWSEXPORT Packet_id4scaler : public Packet_w4 {
0058 #else
0059 class  Packet_id4scaler : public Packet_w4 {
0060 #endif
0061
0062 public:
0063   Packet_id4scaler(PACKET_ptr);
0064   int    iValue(const int channel,const char *what);
0065   long long  lValue(const int channel, const char *what);
0066
0067   virtual void  dump ( OSTREAM& ) ;
0068
0069 protected:
0070   virtual int *decode (int *);
0071 };
0072
0073 #endif /* __PACKET_ID4SCALER_H__ */
0074
0075
0076
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0078