var fOnce func() T
func Reset() {
fOnce = sync.OnceValue(your code here)
}
But as I said: Both is _wrong_. Really totally wrong.
The OnceValue code should make this clear.
Stop doing this. Redesign.
V.
On Friday, 22 November 2024 at 11:41:28 UTC+1 Hartmut Wieselburger wrote:
> | You can do the same with OnceValue
> Can you give an example?
>
> Volker Dobler schrieb am Freitag, 22. November 2024 um 11:32:41 UTC+1:
>
>> You can do the same with OnceValue, but neither is a good idea
>> as it totally invalidates what sync.Once is good for: preventing
>> data races which your "reset" (in quotation marks as you do not
>> reset the sync.Once) provokes.
>>
>> V.
>>
>> On Friday, 22 November 2024 at 09:52:59 UTC+1 Hartmut Wieselburger wrote:
>>
>>> var configOnce sync.Once
>>> func Reset() {
>>> configOnce = sync.Once{}
>>> }
>>>
>>> func Load() *Config {
>>> configOnce.Do(func() {
>>> ...
>>> }
>>>
>>> burak serdar schrieb am Donnerstag, 21. November 2024 um 21:24:40 UTC+1:
>>>
>>>> On Thu, Nov 21, 2024 at 1:14 PM 'Hartmut Wieselburger' via golang-nuts
>>>> <[email protected]> wrote:
>>>> >
>>>> > Hi,
>>>> > is there a way to reset sync.OnceValue(s), as you can do it with
>>>> sync.Once?
>>>>
>>>> How can you reset a sync.Once?
>>>>
>>>> > A common use case is loading a config. I would like to switch from
>>>> sync.Once to sync.OnceValue, but I need to a chance to reload my config,
>>>> without restarting my service.
>>>> > If this is possible with sync.OnceValue, please let me know.
>>>> Otherwise the new OnceValue(s) are useless for me.
>>>> >
>>>> > Regards, Harti
>>>> >
>>>> > --
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>>>>
>>>>
>>>>
>>>
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