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|
package kafka
import (
"math"
"time"
)
const (
maxTimeout = time.Duration(math.MaxInt32) * time.Millisecond
minTimeout = time.Duration(math.MinInt32) * time.Millisecond
defaultRTT = 1 * time.Second
)
func makeTime(t int64) time.Time {
if t <= 0 {
return time.Time{}
}
return time.Unix(t/1000, (t%1000)*int64(time.Millisecond)).UTC()
}
func timestamp(t time.Time) int64 {
if t.IsZero() {
return 0
}
return t.UnixNano() / int64(time.Millisecond)
}
func makeDuration(ms int32) time.Duration {
return time.Duration(ms) * time.Millisecond
}
func milliseconds(d time.Duration) int32 {
switch {
case d > maxTimeout:
d = maxTimeout
case d < minTimeout:
d = minTimeout
}
return int32(d / time.Millisecond)
}
func deadlineToTimeout(deadline time.Time, now time.Time) time.Duration {
if deadline.IsZero() {
return maxTimeout
}
return deadline.Sub(now)
}
func adjustDeadlineForRTT(deadline time.Time, now time.Time, rtt time.Duration) time.Time {
if !deadline.IsZero() {
timeout := deadline.Sub(now)
if timeout < rtt {
rtt = timeout / 4
}
deadline = deadline.Add(-rtt)
}
return deadline
}
|
