warmcat/libwebsockets
Libwebsockets
libwebsockets este un framework de rețea bazat pe evenimente, scris în C. Acesta oferă o suită de instrumente pentru implementarea serverelor și clienților HTTP, comunicare bidirecțională prin WebSocket, mesagerie pentru clienți MQTT și criptare socket prin TLS.
Proiectul se distinge printr-o arhitectură de tip event-loop non-blocant, capabilă să scaleze la volume mari de conexiuni prin distribuirea sesiunilor de rețea pe mai multe fire de execuție. Utilizează un sistem de callback bazat pe protocol și o integrare pluggable a event-loop-ului, care permite nucleului de rețea să se sincronizeze cu biblioteci externe de evenimente de sistem.
Framework-ul acoperă o gamă largă de capabilități de comunicare, inclusiv criptarea la nivel de transport pentru traficul de rețea securizat și proxying-ul conexiunilor pentru a permite dispozitivelor offline să comunice prin proxy-uri la distanță. Include, de asemenea, o politică abstractă de conexiune care decuplează logica aplicației de endpoint-urile de rețea prin fișiere de configurare.
Features
- Bidirectional WebSocket Streaming - Enables real-time bidirectional communication channels for instant data exchange without request overhead.
- Event-Driven Networking - Implements a high-performance runtime model for handling thousands of concurrent connections using non-blocking I/O.
- MQTT Clients - Implements the MQTT protocol to allow devices to publish and subscribe to messages via a broker.
- High-Concurrency Networking - Manages massive numbers of simultaneous network connections through highly scalable asynchronous I/O.
- Client Implementations - Provides a comprehensive toolkit for both hosting web services and making outgoing HTTP requests.
- HTTP Implementations - Implements low-level HTTP protocol handling for managing incoming requests and outgoing responses.
- Network Protocol Implementations - Provides libraries for establishing and managing various network communication protocols and transport layers.
- Multi-Threaded Event Distribution - Distributes network event processing across multiple CPU cores to prevent single-core bottlenecks.
- Protocol Server Communications - Facilitates standardized exchange of requests and responses between clients and remote protocol servers.
- WebSocket Libraries - Implements a C library for bidirectional WebSocket streaming to enable instant data exchange.
- Secure Network Communication - Implements encrypted data transmission across web protocols using transport layer security.
- Pluggable SSL/TLS Integration Layers - Wraps raw socket streams with a pluggable SSL/TLS security layer for encrypted data transfer.
- SSL-Enabled Socket Wrappers - Provides socket wrappers that encrypt TCP and HTTP data transfers using SSL/TLS for secure communication.
- Transport Layer Encryption - Provides cryptographic layers that secure data in transit between network clients and servers using TLS.
- Non-Blocking Event Loops - Uses a non-blocking event loop architecture to handle thousands of concurrent connections efficiently.
- Service Hosting - Establishes lightweight server components to expose application functionality over standard web protocols.
- MQTT Broker Connections - Establishes TCP connections to MQTT brokers for publishing and subscribing to data topics.
- Event Loop Integrations - Allows the networking core to synchronize with external system event libraries via pluggable integration.
- MQTT Messaging Integrations - Supports the exchange of lightweight messages using a publish-subscribe pattern for low-bandwidth networks.
- Real-Time Data Streams - Maintains persistent connections to push live updates to clients via bidirectional data streams.
- Protocol Handler Callbacks - Routes network traffic to specific handler functions based on the protocol defined in configuration tables.
- Multi-Threaded Distribution - Distributes network sessions across multiple service threads to prevent CPU bottlenecks and scale to high connection volumes.
- Embedded Web Servers - Provides lightweight HTTP server components designed for integration into embedded application processes.
- Biblioteci de rețea - Lightweight WebSocket implementation for client and server.
