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Package version

func WriteHeader ¶

func WriteHeader(w io.Writer, v Version) (int, error)

WriteHeader writes a header for a trace version v to w.

type Version ¶

Version represents the version of a trace file.

type Version uint32

const (
    Go111   Version = 11 // v1
    Go119   Version = 19 // v1
    Go121   Version = 21 // v1
    Go122   Version = 22 // v2
    Go123   Version = 23 // v2
    Go125   Version = 25 // v2
    Current         = Go125
)

func ReadHeader ¶

func ReadHeader(r io.Reader) (Version, error)

ReadHeader reads the version of the trace out of the trace file's header, whose prefix must be present in v.

func (Version) EventName ¶

func (v Version) EventName(typ tracev2.EventType) string

EventName returns a string name of a wire format event for a particular trace version.

func (Version) Specs ¶

func (v Version) Specs() []tracev2.EventSpec

Specs returns the set of event.Specs for this version.

func (Version) Valid ¶

func (v Version) Valid() bool