Tags
#php
#kotlin
#bash
#go
#sql
#rust
#typescript
#html
#java
#python
#files
#utils
#strings
#http
#concurrency
#async
#json
#arrays
#security
#types
#crypto
#database
#dates
#format
Java
Semaphore — Bounded Concurrency
Limit how many threads can enter a critical section. `acquire()` blocks until a permit is available; `release()` returns one. Use for rate limits, connection pools, or any "max N at a time" pattern.
@admin
Go
rate.Limiter — Token-Bucket Rate Limiting
`golang.org/x/time/rate` provides a battle-tested token-bucket limiter. Use to enforce "N requests per second with bursts up to B" — for per-IP throttling, external API rate limits, etc.