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Project: Building a High-Performance Async Web Server with Coroutines & Thread Pool — Phase 4 Capstone
TT
TopicTrick Team
Project: Building a High-Performance Async Web Server with Coroutines & Thread Pool — Phase 4 Capstone
Table of Contents
- Server Architecture: io_context + Thread Pool
- HTTP Request Model with std::span
- Zero-Copy HTTP Parsing
- Coroutine Session Handler
- Router: std::string_view Trie Matching
- Middleware Pipeline
- Thread Pool for CPU-Bound Work
- Graceful Shutdown with stop_token
- SIMD Header Boundary Detection
- Benchmarks: Our Server vs nginx
- Extension Challenges
- Phase 4 Reflection
Server Architecture: io_context + Thread Pool
mermaid
HTTP Request Model with std::span
cpp
Zero-Copy HTTP Parsing
cpp
Coroutine Session Handler
cpp
Graceful Shutdown with stop_token
cpp
Benchmarks: Our Server vs nginx
text
Extension Challenges
- HTTPS: Integrate
asio::ssl::stream<tcp::socket>for TLS 1.3 support using OpenSSL - WebSockets: Handle upgrade headers and implement the WebSocket handshake protocol (RFC 6455)
- HTTP/2: Add HTTP/2 multiplexing — multiple streams over one connection
- Static files: Add
sendfile()(Linux) /TransmitFile()(Windows) for zero-copy static file serving - Metrics: Export Prometheus metrics (
/metricsendpoint) for requests/sec, p99 latency, active connections
Phase 4 Reflection
| Phase 4 Concept | Used In Server |
|---|---|
std::jthread + stop_token (Module 14) | Thread pool + graceful shutdown |
std::condition_variable (Module 14) | Thread pool task notification |
co_await coroutines (Module 16) | handle_session, accept_loop |
std::span (Module 22) | Request body zero-copy view |
std::string_view (Module 9) | URL parsing, routing, headers |
| Ranges algorithms (Module 15) | Route matching |
| Memory model + atomics (Module 14) | Lock-free counters |
Proceed to Phase 5: C++26 Reflection & The Future →
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