# Built in locking or semaphore mechanism
**URL:** https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593
**Category:** Feature Requests
**Created:** [July 2, 2021, 1:08am UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593 "2021-07-02T01:08:40Z")
**Posts on this page:** 12
**Page:** 3
### Author:  [@Uzo](https://community.glideapps.com/u/Uzo)
#### Post date: [July 4, 2021, 9:34pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/41 "2021-07-04T21:34:46Z")
no, the changes are instant… what it have to happen is to prevent fast systems to get there before glide update… so minimum 1 sec and is all good… you can test my system as long you want… i guarantee that it will never fail… like Jeff… he was working on same network with fast clicking… he was able to beat glide update… so i put 1 sec delay… and no more chances
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### Author:  [@Uzo](https://community.glideapps.com/u/Uzo)
#### Post date: [July 4, 2021, 10:27pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/42 "2021-07-04T22:27:26Z")
😉 all good
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### Author:  [@Gary\_Biagioni](https://community.glideapps.com/u/Gary_Biagioni)
#### Post date: [July 4, 2021, 10:34pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/43 "2021-07-04T22:34:07Z")
From what I saw in video is used a username and then the same username with a 2 on the end
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### Author:  [@Uzo](https://community.glideapps.com/u/Uzo)
#### Post date: [July 4, 2021, 10:36pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/44 "2021-07-04T22:36:32Z")
Jeff is a pro… and great guy!
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### Author:  [@Gary\_Biagioni](https://community.glideapps.com/u/Gary_Biagioni)
#### Post date: [July 4, 2021, 10:39pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/45 "2021-07-04T22:39:17Z")
Here is a screen shot from the first video
The user logins look different to me.
Anyways…
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### Author:  [@Uzo](https://community.glideapps.com/u/Uzo)
#### Post date: [July 4, 2021, 10:42pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/46 "2021-07-04T22:42:18Z")
sorry… i did not magnify it… you right
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### Author:  [@Gary\_Biagioni](https://community.glideapps.com/u/Gary_Biagioni)
#### Post date: [July 4, 2021, 10:42pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/47 "2021-07-04T22:42:47Z")
Would you mind sharing the technique you used?
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### Author:  [@Uzo](https://community.glideapps.com/u/Uzo)
#### Post date: [July 4, 2021, 10:43pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/48 "2021-07-04T22:43:51Z")
thats will cost you good whisky! you might spent hours or even days to solve this problem… and it is a big chance that you wil not… so a good bottle of Scotch looks like a very good price… 😉
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### Author:  [@Gary\_Biagioni](https://community.glideapps.com/u/Gary_Biagioni)
#### Post date: [July 4, 2021, 11:40pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/49 "2021-07-04T23:40:57Z")
Not.
It does not solve my problem as I need it in a public app no logins. I do not know that it works, and still doubt it does in all cases, as maybe it works with 2 users but not 50.
No issues.
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### Author:  [@Uzo](https://community.glideapps.com/u/Uzo)
#### Post date: [July 4, 2021, 11:42pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/50 "2021-07-04T23:42:30Z")
too low?
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### Author:  [@Uzo](https://community.glideapps.com/u/Uzo)
#### Post date: [July 4, 2021, 11:45pm UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/51 "2021-07-04T23:45:27Z")
it works with multiple users, first one is blocking all others… but it has to be log in
i can work on non log in scenario.
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### Author:  [@Uzo](https://community.glideapps.com/u/Uzo)
#### Post date: [July 5, 2021, 3:30am UTC](https://community.glideapps.com/t/built-in-locking-or-semaphore-mechanism/28593/52 "2021-07-05T03:30:57Z")
New version, no sign-in required!
please test it… best result is to test from deferent devices or other window must be incognito… if same device and no incognito, it will work too but notifications will be unstable…but still you cant double book!
> **[Time & Address Picker](https://sa-test.glideapp.io/dl/ewAiAHQAIgA6ADcALAAiAHMAIgA6ACIAbQBlAG4AdQAtADIANABmAGMAMgBhAGQAZgAtADcANwAzADQALQA0ADcANAA2AC0AYQA5AGIAZAAtADYANgBhADIAMwBiAGQAYQAxAGMANQBjAC0AMQBmADIAZgA5ADUAMQA4AGUANgA1ADEAMAAyAGUAOAA5ADIAMABmAGEAOQBmADgAMABiAGQANgBiAGMAYgAzACIALAAiAHIAIgA6ACIANgBCAFgAaQBYAHcAQgA1AFIAMgBHAHYAaQBxAEYAYQBMADYAdgBZAGsAQQAiACwAIgBuACIAOgAiAHMAZQBtAGEAcABoAG8AcgBlACAAbQBlAGMAaABhAG4AaQBzAG0AIABuAG8AbgAgAGwAbwBnAGkAbgAiAH0A)**
>
> vCard + pick the time using buttons + enter address or place name, and this App will find the proper address and geolocation
@Jeff_Hager what do you think about the no sign-in version?
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