event-loop

# Event Loop Skill Expert skill for high-performance event-driven I/O programming across platforms and runtime environments. ## Capabilities - **Platform Multiplexers**: Configure epoll (Linux), kqueue (BSD/macOS), IOCP (Windows) - **Performance Analysis**: Analyze event loop performance and identify bottlenecks - **Event Debugging**: Debug event handling issues and callback delays - **Framework Code Generation**: Generate code for libuv, Boost.Asio, Tokio, and mio - **C10K+ Optimization**: Optimize for massive concurrent connection handling - **Profiling**: Profile event loop performance with system tools - **io_uring Integration**: Implement Linux io_uring for high-performance I/O - **Timer Management**: Efficient timer wheel and hierarchical timing implementations ## Tools and Dependencies - `strace/dtrace` - System call tracing - `perf` - Linux performance analysis - `libuv` - Cross-platform async I/O - `io_uring` - Linux async I/O interface - `Tokio` - Rust async runtime - `Boost.Asio` - C++ async I/O ## Target Processes - event-driven-socket-handler.js - tcp-socket-server.js - websocket-server.js - layer4-load-balancer.js ## Usage Examples ### epoll Event Loop (C) ```c int epfd = epoll_create1(0); struct epoll_event ev, events[MAX_EVENTS]; ev.events = EPOLLIN | EPOLLET; // Edge-triggered ev.data.fd = listen_fd; epoll_ctl(epfd, EPOLL_CTL_ADD, listen_fd, &ev); while (1) { int n = epoll_wait(epfd, events, MAX_EVENTS, -1); for (int i = 0; i < n; i++) { ...