mirror of
https://github.com/gravitational/teleport.git
synced 2026-11-01 21:52:02 +08:00
Zac Bergquist
5753264917
- Use min/max builtins over custom funcs - Leverage sync.OnceValue instead of hand-rolled impl
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
/*
|
|
* Teleport
|
|
* Copyright (C) 2023 Gravitational, Inc.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package utils
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/jonboulle/clockwork"
|
|
)
|
|
|
|
// MinTTL selects the smallest non-zero duration from a and b.
|
|
func MinTTL(a, b time.Duration) time.Duration {
|
|
if a == 0 {
|
|
return b
|
|
}
|
|
if b == 0 {
|
|
return a
|
|
}
|
|
if a < b {
|
|
return a
|
|
}
|
|
return b
|
|
}
|
|
|
|
// ToTTL converts expiration time to TTL duration
|
|
// relative to current time as provided by clock
|
|
func ToTTL(c clockwork.Clock, tm time.Time) time.Duration {
|
|
now := c.Now().UTC()
|
|
if tm.IsZero() || tm.Before(now) {
|
|
return 0
|
|
}
|
|
return tm.Sub(now)
|
|
}
|