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libwebsockets - 高性能C语言WebSocket及网络协议库
libwebsockets is a lightweight, multi-protocol C library that provides robust and scalable WebSocket client and server implementations, along with support for other related protocols like HTTP/2. Ideal for embedded systems and high-performance applications.
C
Added on 2025年6月5日4,997
Stars1,538
ForksC
LanguageProject Introduction
Summary
libwebsockets is a highly performant, canonical open-source C library designed for building WebSocket-based applications. It simplifies the development of real-time networking services by handling low-level protocol details and providing a flexible API.
Problem Solved
Implementing reliable and high-performance WebSocket communication from scratch, especially in C/C++, is complex due to intricate protocol details, asynchronous I/O handling, and security requirements. libwebsockets abstracts these complexities, providing a robust and portable solution.
Core Features
WebSocket Protocol Implementation
Provides full support for WebSocket client and server roles, adhering to RFC 6455.
Event Loop Integration
Supports integration with various event loops (libuv, libev, LTR, etc.) for efficient asynchronous I/O.
TLS/SSL Support
Includes built-in support for TLS/SSL encryption for secure communication (WSS).
Low Memory Footprint
Lightweight design makes it suitable for embedded systems and resource-constrained environments.
Tech Stack
C
C++ (optional)
POSIX systems
Various Event Loops (libuv, libev, etc.)
OpenSSL/mbedTLS
使用场景
libwebsockets is ideal for applications requiring efficient, low-latency, and scalable real-time communication over the network. Common use cases include:
Real-time Data Streaming Servers
Details
Building scalable WebSocket servers to deliver real-time data updates (e.g., financial market data, system monitoring metrics) to multiple clients simultaneously.
User Value
Enables efficient push-based data delivery, reducing polling overhead and improving user experience.
IoT Device & Application Communication
Details
Creating WebSocket clients for embedded devices or desktop applications to communicate with backend services for command and control or data reporting.
User Value
Provides a lightweight, standard protocol for device-to-cloud and device-to-app communication, even in resource-constrained environments.
Online Gaming & Interactive Services
Details
Developing high-performance game servers or network services where low latency and efficient data transfer are critical.
User Value
Offers the speed and control of a C library for demanding real-time interactive applications.
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