Line data Source code
1 : /**************************************************************************
2 : * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 : * *
4 : * Author: The ALICE Off-line Project. *
5 : * Contributors are mentioned in the code where appropriate. *
6 : * *
7 : * Permission to use, copy, modify and distribute this software and its *
8 : * documentation strictly for non-commercial purposes is hereby granted *
9 : * without fee, provided that the above copyright notice appears in all *
10 : * copies and that both the copyright notice and this permission notice *
11 : * appear in the supporting documentation. The authors make no claims *
12 : * about the suitability of this software for any purpose. It is *
13 : * provided "as is" without express or implied warranty. *
14 : **************************************************************************/
15 :
16 : //
17 : // Class AliVZEROLogicalSignal
18 : // ---------------------------
19 : // Describes a logical signal in the electronics.
20 : // Use it to generate observation windows
21 : // which are used by AliVZEROTriggerSimulator class
22 : //
23 :
24 : #include "AliLog.h"
25 : #include "AliVZEROLogicalSignal.h"
26 :
27 44 : ClassImp(AliVZEROLogicalSignal)
28 :
29 : //_____________________________________________________________________________
30 128 : AliVZEROLogicalSignal::AliVZEROLogicalSignal() : TObject(), fStart(0.), fStop(0.)
31 320 : {
32 : // Default constructor
33 128 : }
34 : //_____________________________________________________________________________
35 256 : AliVZEROLogicalSignal::AliVZEROLogicalSignal(UShort_t profilClock, UInt_t delay, Bool_t run2) : TObject(), fStart(0.), fStop(0.)
36 384 : {
37 : // Constructor using the profilClock and delay parameters comming from the FEE
38 :
39 : Bool_t word;
40 : Bool_t up=kFALSE;
41 : Bool_t down=kFALSE;
42 :
43 128 : if (!run2) {
44 1536 : for(int i=0 ; i<5 ; i++) {
45 640 : Int_t shift = (i<4) ? (3-i) : 4;
46 640 : word = (profilClock >> shift) & 0x1;
47 768 : if(word&&!up) {
48 128 : fStart = 5. * (i + 1);
49 : up = kTRUE;
50 128 : }
51 1472 : if(!word&&up&&!down) {
52 128 : fStop = 5. * (i + 1);
53 : down = kTRUE;
54 128 : }
55 : }
56 128 : if(!down) fStop = 30.;
57 : }
58 : else {
59 0 : for(int i=0 ; i<5 ; i++) {
60 0 : Int_t shift = (i<2) ? (1-i) : (6-i);
61 0 : word = (profilClock >> shift) & 0x1;
62 0 : if(word&&!up) {
63 0 : fStart = 5. * (i + 3);
64 : up = kTRUE;
65 0 : }
66 0 : if(!word&&up&&!down) {
67 0 : fStop = 5. * (i + 3);
68 : down = kTRUE;
69 0 : }
70 : }
71 0 : if(!down) fStop = 40.;
72 : }
73 :
74 128 : fStart += delay*1e-2; // Add 10 ps par register unit
75 128 : fStop += delay*1e-2;
76 256 : }
77 : //_____________________________________________________________________________
78 : AliVZEROLogicalSignal::AliVZEROLogicalSignal(const AliVZEROLogicalSignal &signal) :
79 0 : TObject(), fStart(signal.fStart),
80 0 : fStop(signal.fStop)
81 0 : {
82 : // Copy constructor
83 0 : }
84 :
85 : //_____________________________________________________________________________
86 0 : AliVZEROLogicalSignal::~AliVZEROLogicalSignal(){
87 : // Destructor
88 0 : }
89 :
90 : //_____________________________________________________________________________
91 : AliVZEROLogicalSignal& AliVZEROLogicalSignal::operator =
92 : (const AliVZEROLogicalSignal& signal)
93 : {
94 : // Operator =
95 0 : if(&signal == this) return *this;
96 0 : fStart = signal.fStart;
97 0 : fStop = signal.fStop;
98 0 : return *this;
99 0 : }
100 :
101 : //_____________________________________________________________________________
102 : AliVZEROLogicalSignal AliVZEROLogicalSignal::operator|(const AliVZEROLogicalSignal& signal) const
103 : {
104 : // Perform the Logical OR of two signals: C = A or B
105 0 : if((fStart>signal.fStop) || (signal.fStart>fStop))
106 0 : AliError(Form("Both signal do not superpose in time.\n Start(A) = %f Stop(A) = %f\n Start(B) = %f Stop(B) = %f",fStart, fStop, signal.fStart,signal.fStop));
107 :
108 0 : AliVZEROLogicalSignal result;
109 0 : if(fStart<signal.fStart) result.fStart = fStart;
110 0 : else result.fStart = signal.fStart;
111 :
112 0 : if(fStop>signal.fStop) result.fStop = fStop;
113 0 : else result.fStop = signal.fStop;
114 :
115 : return result;
116 0 : }
117 : //_____________________________________________________________________________
118 : AliVZEROLogicalSignal AliVZEROLogicalSignal::operator&(const AliVZEROLogicalSignal& signal) const
119 : {
120 : // Perform the Logical AND of two signals: C = A and B
121 0 : if((fStart>signal.fStop) || (signal.fStart>fStop))
122 0 : AliError(Form("Both signal do not superpose in time.\n Start(A) = %f Stop(A) = %f\n Start(B) = %f Stop(B) = %f",fStart, fStop, signal.fStart,signal.fStop));
123 :
124 0 : AliVZEROLogicalSignal result;
125 0 : if(fStart>signal.fStart) result.fStart = fStart;
126 0 : else result.fStart = signal.fStart;
127 :
128 0 : if(fStop<signal.fStop) result.fStop = fStop;
129 0 : else result.fStop = signal.fStop;
130 :
131 : return result;
132 0 : }
133 :
134 : //_____________________________________________________________________________
135 : Bool_t AliVZEROLogicalSignal::IsInCoincidence(Float_t time) const
136 : {
137 : // Check if a signal arriving at the time "time" is in coincidence with the logical signal
138 : Bool_t result = kFALSE;
139 1178 : if((time>fStart) && (time<fStop)) result = kTRUE;
140 512 : return result;
141 : }
142 :
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