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.
Linuxsigactionsignal handling
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