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// Copyright (c) 2015-2024 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// 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 xtime
import (
"fmt"
"time"
"github.com/tinylib/msgp/msgp"
"gopkg.in/yaml.v3"
)
// Additional durations, a day is considered to be 24 hours
const (
Day time.Duration = time.Hour * 24
Week = Day * 7
)
var unitMap = map[string]int64{
"ns": int64(time.Nanosecond),
"us": int64(time.Microsecond),
"µs": int64(time.Microsecond), // U+00B5 = micro symbol
"μs": int64(time.Microsecond), // U+03BC = Greek letter mu
"ms": int64(time.Millisecond),
"s": int64(time.Second),
"m": int64(time.Minute),
"h": int64(time.Hour),
"d": int64(Day),
"w": int64(Week),
}
// ParseDuration parses a duration string.
// The following code is borrowed from time.ParseDuration
// https://cs.opensource.google/go/go/+/refs/tags/go1.22.5:src/time/format.go;l=1589
// This function extends this function by allowing support for days and weeks.
// This function must only be used when days and weeks are necessary inputs
// in all other cases it is preferred that a user uses Go's time.ParseDuration
func ParseDuration(s string) (time.Duration, error) {
dur, err := time.ParseDuration(s) // Parse via standard Go, if success return right away.
if err == nil {
return dur, nil
}
return parseDuration(s)
}
// Duration is a wrapper around time.Duration that supports YAML and JSON
type Duration time.Duration
// D will return as a time.Duration.
func (d Duration) D() time.Duration {
return time.Duration(d)
}
// UnmarshalYAML implements yaml.Unmarshaler
func (d *Duration) UnmarshalYAML(value *yaml.Node) error {
if value.Kind == yaml.ScalarNode {
dur, err := ParseDuration(value.Value)
if err != nil {
return err
}
*d = Duration(dur)
return nil
}
return fmt.Errorf("unable to unmarshal %s", value.Tag)
}
// UnmarshalJSON implements json.Unmarshaler
func (d *Duration) UnmarshalJSON(bs []byte) error {
if len(bs) <= 2 {
return nil
}
dur, err := ParseDuration(string(bs[1 : len(bs)-1]))
if err != nil {
return err
}
*d = Duration(dur)
return nil
}
// MarshalMsg appends the marshaled form of the object to the provided
// byte slice, returning the extended slice and any errors encountered.
func (d Duration) MarshalMsg(bytes []byte) ([]byte, error) {
return msgp.AppendInt64(bytes, int64(d)), nil
}
// UnmarshalMsg unmarshals the object from binary,
// returing any leftover bytes and any errors encountered.
func (d *Duration) UnmarshalMsg(b []byte) ([]byte, error) {
i, rem, err := msgp.ReadInt64Bytes(b)
*d = Duration(i)
return rem, err
}
// EncodeMsg writes itself as MessagePack using a *msgp.Writer.
func (d Duration) EncodeMsg(w *msgp.Writer) error {
return w.WriteInt64(int64(d))
}
// DecodeMsg decodes itself as MessagePack using a *msgp.Reader.
func (d *Duration) DecodeMsg(reader *msgp.Reader) error {
i, err := reader.ReadInt64()
*d = Duration(i)
return err
}
// Msgsize returns the maximum serialized size in bytes.
func (d Duration) Msgsize() int {
return msgp.Int64Size
}
// MarshalYAML implements yaml.Marshaler - Converts duration to human-readable format (e.g., "2h", "30m")
func (d Duration) MarshalYAML() (interface{}, error) {
return time.Duration(d).String(), nil
}
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