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#ifndef CSCSP_MBblock_h
#define CSCSP_MBblock_h
#include <cstring>
class CSCSP_MBblock {
private:
/////// word 1 ///////
unsigned quality_ : 3; // muon quality (0-7), quality > 0 for valid data;
unsigned zero_1 : 1; // format specific
unsigned phi_bend_ : 5; // phi bend angle
unsigned zero_2 : 3; // format specific
unsigned flag_ : 1; // if 1 then it is a second muon from previous bunch crossing
unsigned cal_ : 1; // MBy special mode flag
unsigned zero_3 : 2; // format specific
/////// word 2 ///////
unsigned phi_ : 12; // azimuth coordinate;
unsigned bxn1_ : 1; // next to the least significant bit of the MB BX number
unsigned bxn0_ : 1; // least significant bit of the MB BX number
unsigned bc0_ : 1; // BX zero timing mark
unsigned zero_4 : 1; // format specific
/////// word 3 ///////
unsigned mb_bxn_ : 12; // Stub arrival time picked from a local 12-bit Bunch Counter, that runs at data stream timing
unsigned spare_1 : 3; // not used
unsigned zero_5 : 1; // format specific
/////// word 4 ///////
unsigned spare_2 : 15; // not used
unsigned zero_6 : 1; // format specific
// Other data members logically belong to MB block record,
// but physically are located in Data Block Header, which implementation is:
friend class CSCSPRecord;
friend class CSCTFPacker;
// Let this class set following data memebers:
unsigned int tbin_; // time bin, that this MB block belongs to in global SP record
unsigned int valid_quality; // valid quality
unsigned int alignment_fifo; // AF error
unsigned int bxBit; // monitors the MB(DT) timing
unsigned int id_; // stub id (1-MB1a, 2-MB1d)
public:
bool check(void) const throw() {
return zero_1 != 0 || zero_2 != 0 || zero_3 != 0 || zero_4 != 0 || zero_5 != 0 || zero_6 != 0 || spare_1 != 0 ||
spare_2 != 0;
}
unsigned int quality(void) const throw() { return quality_; }
unsigned int phi_bend(void) const throw() { return phi_bend_; }
unsigned int flag(void) const throw() { return flag_; }
unsigned int cal(void) const throw() { return cal_; }
unsigned int phi(void) const throw() { return phi_; }
unsigned int bxn(void) const throw() { return (bxn1_ << 1) | bxn0_; }
unsigned int bc0(void) const throw() { return bc0_; }
unsigned int BXN(void) const throw() { return mb_bxn_; }
unsigned int id(void) const throw() { return id_; }
unsigned int tbin(void) const throw() { return tbin_; }
unsigned int vq(void) const throw() { return valid_quality; }
unsigned int af(void) const throw() { return alignment_fifo; }
unsigned int timingError(void) const throw() { return bxBit; }
bool unpack(const unsigned short *&buf) throw() {
std::memcpy(this, buf, 4 * sizeof(short));
buf += 4;
return check();
}
CSCSP_MBblock(void) {}
};
#endif
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