QuicX is a high-performance HTTP/3 library based on the QUIC protocol (RFC 9000), implemented in C++11. This project provides a complete QUIC and HTTP/3 network transmission solution, supporting high concurrency and low latency network communication needs.

Features

QUIC Protocol Implementation

• Connection Management

  • TLS 1.3 encryption and secure handshake based on BoringSSL
  • Support for 0-RTT and 1-RTT connection establishment
  • Connection migration support
  • Graceful connection closure handling

• Flow Control

  • Window-based flow control
  • Stream-level and connection-level concurrency control
  • Support for STREAM_DATA_BLOCKED and DATA_BLOCKED frames

• Congestion Control

  • Implementation of multiple congestion control algorithms:
    • BBR
    • Cubic
    • Reno
  • Intelligent packet retransmission strategy

• Data Transmission

  • Reliable packet transmission and acknowledgment mechanism
  • Efficient frame packaging and parsing
  • Support for PING/PONG heartbeat detection
  • PATH_CHALLENGE/PATH_RESPONSE path validation

HTTP/3 Implementation

• Header Compression

  • Implementation of QPACK dynamic and static tables
  • Efficient Huffman coding
  • Header field validation and processing

• Stream Management

  • Support for bidirectional and unidirectional streams
  • Stream priority handling
  • Flow control and backpressure handling

• Request Handling

  • Support for all HTTP methods
  • Flexible routing system
  • Middleware mechanism
  • Complete lifecycle management of requests and responses

Core Components

• Memory Management

  • Efficient memory pool implementation
  • Intelligent buffer management
  • Zero-copy data transmission optimization

• Concurrency Control

  • Thread-safe data structures
  • Lock-free queue implementation
  • Efficient event loop

• Logging System

  • Multi-level logging support
  • Configurable log output
  • Performance statistics and monitoring

Quick Start

Build Requirements

• C++11 or higher
• BoringSSL
• GTest (optional, for unit testing)

Build Steps

git clone https://github.com/caozhiyi/quicX.git
cd quicX
make

Performance Optimization

Memory Management

• Use memory pool to reduce memory allocation overhead
• Intelligent buffer management to avoid frequent memory copying
• Implement zero-copy mechanism to improve data transmission efficiency

Concurrency Handling

• Multi-threaded event loop for network I/O processing
• Lock-free data structures to reduce thread contention
• Efficient task scheduling mechanism

Network Optimization

• Intelligent packet retransmission strategy
• Adaptive congestion control
• Efficient flow control algorithms

License

MIT License - See the LICENSE file for more information.