146   PreambleResult recordPreamble(uint64_t TSC,  in recordPreamble()  argument
149       // We update our internal tracking state for the Latest TSC and CPU we've  in recordPreamble()
151       LatestTSC = TSC;  in recordPreamble()
157       W.writeMetadata<MetadataRecord::RecordKinds::NewCPUId>(CPU, TSC);  in recordPreamble()
163     if (UNLIKELY(LatestTSC > TSC ||  in recordPreamble()
164                  TSC - LatestTSC >  in recordPreamble()
166       // Either the TSC has wrapped around from the last TSC we've seen or the  in recordPreamble()
169       LatestTSC = TSC;  in recordPreamble()
174       W.writeMetadata<MetadataRecord::RecordKinds::TSCWrap>(TSC);  in recordPreamble()
181   bool rewindRecords(int32_t FuncId, uint64_t TSC,  in rewindRecords()  argument
222       if ((TSC - RewindingTSC) >= CycleThreshold) {  in rewindRecords()
244   bool functionEnter(int32_t FuncId, uint64_t TSC,  in functionEnter()  argument
250     auto PreambleStatus = recordPreamble(TSC, CPU);  in functionEnter()
261     auto Delta = TSC - LatestTSC;  in functionEnter()
262     LastFunctionEntryTSC = TSC;  in functionEnter()
263     LatestTSC = TSC;  in functionEnter()
268   bool functionTailExit(int32_t FuncId, uint64_t TSC,  in functionTailExit()  argument
276     auto PreambleStatus = recordPreamble(TSC, CPU);  in functionTailExit()
282         TSC - LastFunctionEntryTSC < CycleThreshold)  in functionTailExit()
283       return rewindRecords(FuncId, TSC, CPU);  in functionTailExit()
287     auto Delta = TSC - LatestTSC;  in functionTailExit()
288     LatestTSC = TSC;  in functionTailExit()
293   bool functionEnterArg(int32_t FuncId, uint64_t TSC, uint16_t CPU,  in functionEnterArg()  argument
297         recordPreamble(TSC, CPU) == PreambleResult::InvalidBuffer)  in functionEnterArg()
300     auto Delta = TSC - LatestTSC;  in functionEnterArg()
301     LatestTSC = TSC;  in functionEnterArg()
310   bool functionExit(int32_t FuncId, uint64_t TSC,  in functionExit()  argument
316     auto PreambleStatus = recordPreamble(TSC, CPU);  in functionExit()
322         TSC - LastFunctionEntryTSC < CycleThreshold)  in functionExit()
323       return rewindRecords(FuncId, TSC, CPU);  in functionExit()
325     auto Delta = TSC - LatestTSC;  in functionExit()
326     LatestTSC = TSC;  in functionExit()
333   bool customEvent(uint64_t TSC, uint16_t CPU, const void *Event,  in customEvent()  argument
337         recordPreamble(TSC, CPU) == PreambleResult::InvalidBuffer)  in customEvent()
340     auto Delta = TSC - LatestTSC;  in customEvent()
341     LatestTSC = TSC;  in customEvent()
347   bool typedEvent(uint64_t TSC, uint16_t CPU, uint16_t EventType,  in typedEvent()  argument
351         recordPreamble(TSC, CPU) == PreambleResult::InvalidBuffer)  in typedEvent()
354     auto Delta = TSC - LatestTSC;  in typedEvent()
355     LatestTSC = TSC;  in typedEvent()