chore: add new bbr implementation

transport/tuic/congestion/minmax.go

@@ -1,56 +0,0 @@
-package congestion
-
-import (
-	"math"
-	"time"
-)
-
-// InfDuration is a duration of infinite length
-const InfDuration = time.Duration(math.MaxInt64)
-
-// MinNonZeroDuration return the minimum duration that's not zero.
-func MinNonZeroDuration(a, b time.Duration) time.Duration {
-	if a == 0 {
-		return b
-	}
-	if b == 0 {
-		return a
-	}
-	return Min(a, b)
-}
-
-// AbsDuration returns the absolute value of a time duration
-func AbsDuration(d time.Duration) time.Duration {
-	if d >= 0 {
-		return d
-	}
-	return -d
-}
-
-// MinTime returns the earlier time
-func MinTime(a, b time.Time) time.Time {
-	if a.After(b) {
-		return b
-	}
-	return a
-}
-
-// MinNonZeroTime returns the earlist time that is not time.Time{}
-// If both a and b are time.Time{}, it returns time.Time{}
-func MinNonZeroTime(a, b time.Time) time.Time {
-	if a.IsZero() {
-		return b
-	}
-	if b.IsZero() {
-		return a
-	}
-	return MinTime(a, b)
-}
-
-// MaxTime returns the later time
-func MaxTime(a, b time.Time) time.Time {
-	if a.After(b) {
-		return a
-	}
-	return b
-}