xtilsPractical-first C++17 utility library

Bring the developer experience of Go/Python/Rust standard libraries to C++ — without giving up the performance.

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App Framework

Service lifecycle with topological dependencies, config injection, event system — a ready-to-go application skeleton.

🌐

TCP/UDP, HTTP (Express-style router, HttpClientPool), WebSocket, TLS, JSON-RPC IPC — start a server in one line.

🤖

State machine with history + JSON-driven behavior tree (events, subtrees, blackboard) — no template hell.

⚡

Event loop, thread pools, cron scheduler, cancellable timers — manage concurrency as easily as Go routines.

📝

Async / rotating / leveled logging with structured `LogBuilder` + MDC. Counter / Gauge / Histogram with Prometheus exporter.

🔧

JSON, crypto (SHA-256/HMAC/UUID), Result, strings, file I/O, byte reader/writer — no need to pull in third-party libs.