85 lines
1.9 KiB
Go
85 lines
1.9 KiB
Go
package xtime
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import (
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"context"
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"database/sql/driver"
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"strconv"
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"time"
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)
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// Time be used to MySql timestamp converting.
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type Time int64
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// Scan scan time.
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func (t *Time) Scan(src interface{}) (err error) {
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switch sc := src.(type) {
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case time.Time:
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if sc.IsZero() {
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return
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}
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*t = Time(sc.Unix())
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case string:
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var i int64
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i, err = strconv.ParseInt(sc, 10, 64)
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*t = Time(i)
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}
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return
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}
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// Value get time value.
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func (t Time) Value() (driver.Value, error) {
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return time.Unix(int64(t), 0), nil
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}
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// Time get time.
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func (t Time) Time() time.Time {
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return time.Unix(int64(t), 0)
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}
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func (t *Time) FromDB(bs []byte) error {
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timeStr := string(bs)
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ti, err := time.ParseInLocation("2006-01-02T15:04:05", timeStr[:19], time.Local)
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if err != nil {
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return err
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}
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if ti.IsZero() {
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return nil
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}
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*t = Time(ti.Unix())
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return nil
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}
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func (t Time) ToDB() ([]byte, error) {
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unix := time.Unix(int64(t), 0)
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return []byte(unix.String()), nil
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}
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// Duration be used json unmarshal string time, like 1s, 500ms.
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type Duration time.Duration
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// UnmarshalText unmarshal text to duration.
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func (d *Duration) UnmarshalText(text []byte) error {
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tmp, err := time.ParseDuration(string(text))
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if err == nil {
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*d = Duration(tmp)
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}
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return err
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}
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// UnitTime duration parse to unit, such as "300ms", "1h30m" or "2h10s".
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func (d *Duration) UnitTime() string {
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return DurationToUnit(time.Duration(*d))
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}
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// Shrink will decrease the duration by comparing with context's timeout duration and return new timeout\context\CancelFunc.
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func (d Duration) Shrink(c context.Context) (Duration, context.Context, context.CancelFunc) {
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if deadline, ok := c.Deadline(); ok {
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if ctimeout := time.Until(deadline); ctimeout < time.Duration(d) {
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// deliver small timeout
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return Duration(ctimeout), c, func() {}
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}
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}
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ctx, cancel := context.WithTimeout(c, time.Duration(d))
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return d, ctx, cancel
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}
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