IO Models

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Different approaches to handling I/O operations. Blocking I/O waits for completion; non-blocking returns immediately. I/O multiplexing (select, poll, epoll, kqueue) monitors multiple file descriptors efficiently. Async I/O (io_uring) submits operations and gets notified on completion.

Key Properties

• Blocking and Non-Blocking IO
• IO Multiplexing
• Async IO

Related

• Coroutines (often built on non-blocking I/O)
• Green Threads and Fibers (runtime manages I/O scheduling)

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operating-systems file-systems io