Tagged articles

sigaction

3 articles · Page 1 of 1

Aug 11, 2026 · Backend Development

Big Tech C++ Interview: Deep Dive into Linux Signal Mechanism

This article explains Linux signal fundamentals—including generation, registration, dispatch, masking, and handling—covers standard and real‑time signals, common pitfalls like non‑reentrancy and EINTR, and provides concrete C/C++ code examples for each scenario.

C++LinuxPOSIX

0 likes · 44 min read

Big Tech C++ Interview: Deep Dive into Linux Signal Mechanism

ITPUB

Jul 1, 2016 · Fundamentals

Why Linux Signals Aren’t One‑Shot Anymore: Exploring signal, sigaction, and sysv_signal

This article explains how Linux signals work, why the original signal() API behaved as a one‑shot handler, how modern glibc’s signal() maps to rt_sigaction with safer flags, and demonstrates the differences with code samples, strace traces, and kernel source snippets.

LinuxSignal Handlingsigaction

0 likes · 17 min read

Why Linux Signals Aren’t One‑Shot Anymore: Exploring signal, sigaction, and sysv_signal

ITPUB

Jun 29, 2016 · Fundamentals

Why Zombie Processes Persist in Linux and How to Eliminate Them

The article explains how zombie processes are created when a child exits without its parent calling wait/waitpid, outlines the risks of accumulating zombies, and provides several practical techniques—including signal handling and sigaction flags—to prevent or automatically reap them.

LinuxProcess ManagementSIGCHLD

0 likes · 6 min read

Why Zombie Processes Persist in Linux and How to Eliminate Them