tag

#epoll

3 posts

LinuxDeep Dive October 3, 2026 8 min read

Linux epoll Readiness Semantics: Edge-Triggered I/O, Lifetimes, and Fairness

Build correct Linux epoll loops by handling readiness, edge-triggered drains, duplicated descriptors, one-shot rearming, and backpressure explicitly.

#linux#epoll#sockets

LinuxDeep Dive October 3, 2026 8 min read

Linux signalfd: Consume Signals in an Event Loop Without Async Handlers

Integrate Linux signals with poll or epoll using signalfd, block the intended signal mask correctly, and preserve signal coalescing and thread semantics.

#linux#signals#signalfd

LinuxDeep Dive October 3, 2026 8 min read

Linux timerfd: Deadline Clocks, Missed Periods, and Event-Loop Timers

Choose the right timerfd clock, consume expiration counts correctly, avoid wall-clock surprises, and integrate deadlines with poll or epoll.

#linux#timerfd#timekeeping