version

package standard library

go1.23.3 Latest Latest Go to latest Published: Nov 6, 2024 License: BSD-3-Clause Imports: 4 Imported by: 0

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

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

type Version uint32

Version represents the version of a trace file.

const (
	Go111   Version = 11
	Go119   Version = 19
	Go121   Version = 21
	Go122   Version = 22
	Go123   Version = 23
	Current         = Go123
)

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 (v Version) Specs() []event.Spec

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

func (v Version) Valid() bool