type traceEv … const traceEvNone … const traceEvEventBatch … const traceEvStacks … const traceEvStack … const traceEvStrings … const traceEvString … const traceEvCPUSamples … const traceEvCPUSample … const traceEvFrequency … const traceEvProcsChange … const traceEvProcStart … const traceEvProcStop … const traceEvProcSteal … const traceEvProcStatus … const traceEvGoCreate … const traceEvGoCreateSyscall … const traceEvGoStart … const traceEvGoDestroy … const traceEvGoDestroySyscall … const traceEvGoStop … const traceEvGoBlock … const traceEvGoUnblock … const traceEvGoSyscallBegin … const traceEvGoSyscallEnd … const traceEvGoSyscallEndBlocked … const traceEvGoStatus … const traceEvSTWBegin … const traceEvSTWEnd … const traceEvGCActive … const traceEvGCBegin … const traceEvGCEnd … const traceEvGCSweepActive … const traceEvGCSweepBegin … const traceEvGCSweepEnd … const traceEvGCMarkAssistActive … const traceEvGCMarkAssistBegin … const traceEvGCMarkAssistEnd … const traceEvHeapAlloc … const traceEvHeapGoal … const traceEvGoLabel … const traceEvUserTaskBegin … const traceEvUserTaskEnd … const traceEvUserRegionBegin … const traceEvUserRegionEnd … const traceEvUserLog … const traceEvGoSwitch … const traceEvGoSwitchDestroy … const traceEvGoCreateBlocked … const traceEvGoStatusStack … const traceEvExperimentalBatch … type traceArg … type traceEventWriter … // eventWriter creates a new traceEventWriter. It is the main entrypoint for writing trace events. // // Before creating the event writer, this method will emit a status for the current goroutine // or proc if it exists, and if it hasn't had its status emitted yet. goStatus and procStatus indicate // what the status of goroutine or P should be immediately *before* the events that are about to // be written using the eventWriter (if they exist). No status will be written if there's no active // goroutine or P. // // Callers can elect to pass a constant value here if the status is clear (e.g. a goroutine must have // been Runnable before a GoStart). Otherwise, callers can query the status of either the goroutine // or P and pass the appropriate status. // // In this case, the default status should be traceGoBad or traceProcBad to help identify bugs sooner. func (tl traceLocker) eventWriter(goStatus traceGoStatus, procStatus traceProcStatus) traceEventWriter { … } // event writes out a trace event. func (e traceEventWriter) event(ev traceEv, args ...traceArg) { … } // stack takes a stack trace skipping the provided number of frames. // It then returns a traceArg representing that stack which may be // passed to write. func (tl traceLocker) stack(skip int) traceArg { … } // startPC takes a start PC for a goroutine and produces a unique // stack ID for it. // // It then returns a traceArg representing that stack which may be // passed to write. func (tl traceLocker) startPC(pc uintptr) traceArg { … } // string returns a traceArg representing s which may be passed to write. // The string is assumed to be relatively short and popular, so it may be // stored for a while in the string dictionary. func (tl traceLocker) string(s string) traceArg { … } // uniqueString returns a traceArg representing s which may be passed to write. // The string is assumed to be unique or long, so it will be written out to // the trace eagerly. func (tl traceLocker) uniqueString(s string) traceArg { … } // rtype returns a traceArg representing typ which may be passed to write. func (tl traceLocker) rtype(typ *abi.Type) traceArg { … }
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