# I need a countdown latch

**URL:** <https://ziggit.dev/t/i-need-a-countdown-latch/15393>\
**Category:** Help\
**Tags:** standard-library\
**Created:** [May 7, 2026, 10:31pm UTC](https://ziggit.dev/t/i-need-a-countdown-latch/15393 "2026-05-07T22:31:28Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![LucasSantos91](https://ziggit.dev/user_avatar/ziggit.dev/lucassantos91/32/440_2.png) [@LucasSantos91](https://ziggit.dev/u/LucasSantos91)\
**Post date:** [May 7, 2026, 11:25pm UTC](https://ziggit.dev/t/i-need-a-countdown-latch/15393/2 "2026-05-07T23:25:56Z")

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I had never heard the term countdown latch. What you described is what I learned as a thread barrier.  
[This guy](https://ziggit.dev/t/thread-barriers/10626/6) wrote a cool implementation of one.

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