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00001 00021 #include "IOPool/Streamer/interface/FRDEventMessage.h" 00022 00026 FRDEventMsgView::FRDEventMsgView(void* buf): buf_((uint8*)buf) 00027 { 00028 uint32* bufPtr = static_cast<uint32*>(buf); 00029 uint32 versionNumber = *bufPtr; 00030 // if the version number is rather large, then we assume that the true 00031 // version number is one. (In version one of the format, there was 00032 // no version number in the data, and the run number appeared first.) 00033 if (versionNumber >= 32) { 00034 versionNumber = 1; 00035 } 00036 00037 // for now, all we need to do here is calculate the full event size 00038 event_len_ = 0; 00039 if (versionNumber >= 2) { 00040 event_len_ += sizeof(uint32); // version number 00041 ++bufPtr; 00042 } 00043 event_len_ += sizeof(uint32); // run number 00044 ++bufPtr; 00045 if (versionNumber >= 2) { 00046 event_len_ += sizeof(uint32); // lumi number 00047 ++bufPtr; 00048 } 00049 event_len_ += sizeof(uint32); // event number 00050 ++bufPtr; 00051 for (int idx = 0; idx < 1024; idx++) { 00052 event_len_ += sizeof(uint32); // FED N size 00053 event_len_ += *bufPtr; // FED N data 00054 ++bufPtr; 00055 } 00056 } 00057 00058 uint32 FRDEventMsgView::version() const 00059 { 00060 FRDEventHeader_V2* hdr = (FRDEventHeader_V2*) buf_; 00061 uint32 version = hdr->version_; 00062 if (version >= 32) { // value looks like run number, so assume version 1 00063 return 1; 00064 } 00065 else { // version 2 and above 00066 return hdr->version_; 00067 } 00068 } 00069 00070 uint32 FRDEventMsgView::run() const 00071 { 00072 FRDEventHeader_V2* hdr = (FRDEventHeader_V2*) buf_; 00073 uint32 version = hdr->version_; 00074 if (version >= 32) { // value looks like run number, so assume version 1 00075 FRDEventHeader_V1* hdrV1 = (FRDEventHeader_V1*) buf_; 00076 return hdrV1->run_; 00077 } 00078 else { // version 2 and above 00079 return hdr->run_; 00080 } 00081 } 00082 00083 uint32 FRDEventMsgView::lumi() const 00084 { 00085 FRDEventHeader_V2* hdr = (FRDEventHeader_V2*) buf_; 00086 uint32 version = hdr->version_; 00087 if (version >= 32) { // value looks like run number, so assume version 1 00088 return 1; 00089 } 00090 else { // version 2 and above 00091 return hdr->lumi_; 00092 } 00093 } 00094 00095 uint32 FRDEventMsgView::event() const 00096 { 00097 FRDEventHeader_V2* hdr = (FRDEventHeader_V2*) buf_; 00098 uint32 version = hdr->version_; 00099 if (version >= 32) { // value looks like run number, so assume version 1 00100 FRDEventHeader_V1* hdrV1 = (FRDEventHeader_V1*) buf_; 00101 return hdrV1->event_; 00102 } 00103 else { // version 2 and above 00104 return hdr->event_; 00105 } 00106 }
1.7.3