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refactor(event): Introduce event decoder #665

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14 changes: 7 additions & 7 deletions pkg/event/event_windows.go
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Original file line number Diff line number Diff line change
Expand Up @@ -48,13 +48,13 @@ var (

// New constructs a fresh event instance with basic fields and parameters
// from the raw ETW event record.
func New(seq uint64, evt *etw.EventRecord) *Event {
func New(seq uint64, r *etw.EventRecord) *Event {
var (
pid = evt.Header.ProcessID
tid = evt.Header.ThreadID
cpu = *(*uint8)(unsafe.Pointer(&evt.BufferContext.ProcessorIndex[0]))
ts = filetime.ToEpoch(evt.Header.Timestamp)
typ = NewTypeFromEventRecord(evt)
pid = r.Header.ProcessID
tid = r.Header.ThreadID
cpu = *(*uint8)(unsafe.Pointer(&r.BufferContext.ProcessorIndex[0]))
ts = filetime.ToEpoch(r.Header.Timestamp)
typ = NewTypeFromEventRecord(r)
)

e := &Event{
Expand All @@ -70,7 +70,7 @@ func New(seq uint64, evt *etw.EventRecord) *Event {
Host: hostname.Get(),
}

e.produceParams(evt)
e.decodeParams(r)
e.adjustPID()

return e
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10 changes: 10 additions & 0 deletions pkg/event/param.go
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Original file line number Diff line number Diff line change
Expand Up @@ -406,6 +406,16 @@ func (pars Params) GetUint16(name string) (uint16, error) {
return v, nil
}

// MustGetUint8 returns the underlying uint8 value parameter. It panics if
// an error occurs while trying to get the parameter.
func (pars Params) MustGetUint8(name string) uint8 {
v, err := pars.GetUint8(name)
if err != nil {
panic(err)
}
return v
}

// MustGetUint16 returns the underlying uint16 value parameter. It panics if
// an error occurs while trying to get the parameter.
func (pars Params) MustGetUint16(name string) uint16 {
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