ActiveGo 1.8Package lib
Overview ▹
Index ▹
Variables
var (
// SeededSecurely is set to true if a cryptographically secure seed
// was used to initialize rand. When false, the start time is used
// as a seed.
SeededSecurely bool
)
func AbsInt ¶
func AbsInt(a int) int
func ComputeDistance ¶
func ComputeDistance(a *coordinate.Coordinate, b *coordinate.Coordinate) float64
ComputeDistance returns the distance between the two network coordinates in seconds. If either of the coordinates is nil then this will return positive infinity.
func DurationMinusBuffer ¶
func DurationMinusBuffer(intv time.Duration, buffer time.Duration, jitter int64) time.Duration
DurationMinusBuffer returns a duration, minus a buffer and jitter subtracted from the duration. This function is used primarily for servicing Consul TTL Checks in advance of the TTL.
func DurationMinusBufferDomain ¶
func DurationMinusBufferDomain(intv time.Duration, buffer time.Duration, jitter int64) (min time.Duration, max time.Duration)
DurationMinusBufferDomain returns the domain of valid durations from a call to DurationMinusBuffer. This function is used to check user specified input values to DurationMinusBuffer.
func EnsurePath ¶
func EnsurePath(path string, dir bool) error
EnsurePath is used to make sure a path exists
func GenerateCoordinate ¶
func GenerateCoordinate(rtt time.Duration) *coordinate.Coordinate
GenerateCoordinate creates a new coordinate with the given distance from the origin. This should only be used for tests.
func MaxInt ¶
func MaxInt(a, b int) int
func MinInt ¶
func MinInt(a, b int) int
func RandomStagger ¶
func RandomStagger(intv time.Duration) time.Duration
RandomStagger returns an interval between 0 and the duration
func RateScaledInterval ¶
func RateScaledInterval(rate float64, min time.Duration, n int) time.Duration
RateScaledInterval is used to choose an interval to perform an action in order to target an aggregate number of actions per second across the whole cluster.
func SeedMathRand ¶
func SeedMathRand()
SeedMathRand provides weak, but guaranteed seeding, which is better than running with Go's default seed of 1. A call to SeedMathRand() is expected to be called via init(), but never a second time.
func StrContains ¶
func StrContains(l []string, s string) bool
StrContains checks if a list contains a string