Vermell: A New Minimal, Dependency-Free C++ Web Framework Using epoll

Introduction to Vermell

Vermell is a new web framework built for modern C++ environments. It distinguishes itself by being minimal, requiring only a single header and a static library, with no runtime, garbage collector, or vendored dependencies. The framework emphasizes direct C++ usage, aiming for high performance and control.

Technical Architecture

The framework operates on an event-driven engine, employing a non-blocking epoll loop to handle requests and distribute work to a pool of worker threads. This architecture is designed to ensure speed under heavy load and resilience against slow client connections. It relies solely on base Linux APIs such as sockets, epoll, pthreads, and fork/exec.

Key Features and Compatibility

Vermell offers features like an in-tree JSON DOM with strict RFC 8259 parsing, typed parameters, and multipart uploads. It also supports C++ templates for composing modules and rendering variables. The framework is compatible with various Linux environments, including x86_64, ARM (aarch64, armv7), Android via Termux, WSL, and Raspberry Pi. Hardening features like timeouts, request caps, and connection limits are enabled by default.

Installation and Usage

Installation can be done via cloning the GitHub repository and using CMake, or through pre-built packages available on GitHub Pages for amd64, arm64, and armhf architectures. A basic Vermell server is configured by setting a port and registering handlers for routes, as demonstrated with a simple C++ example.