VictoriaMetrics/lib/prompbmarshal/util.go

32 lines
800 B
Go

package prompbmarshal
import (
"fmt"
)
// MarshalProtobuf marshals wr to dst and returns the result.
func (wr *WriteRequest) MarshalProtobuf(dst []byte) []byte {
size := wr.Size()
dstLen := len(dst)
if n := size - (cap(dst) - dstLen); n > 0 {
dst = append(dst[:cap(dst)], make([]byte, n)...)
}
dst = dst[:dstLen+size]
n, err := wr.MarshalToSizedBuffer(dst[dstLen:])
if err != nil {
panic(fmt.Errorf("BUG: unexpected error when marshaling WriteRequest: %w", err))
}
return dst[:dstLen+n]
}
// Reset resets wr.
func (wr *WriteRequest) Reset() {
wr.Timeseries = ResetTimeSeries(wr.Timeseries)
}
// ResetTimeSeries clears all the GC references from tss and returns an empty tss ready for further use.
func ResetTimeSeries(tss []TimeSeries) []TimeSeries {
clear(tss)
return tss[:0]
}