Question

Difference between reliable and unreliable signals in linux

Answer 1

Answer:

In Linux programming, signal semantics have been modified in different ways and classes. There are major classes of signals which is reliable and unreliable.

Unreliable signals is when there is interruption by signal, system calls could not restart automatically and signal handler does not remain installed, while reliable signal, signal handler remains installed upon calling and condition for re-installation does not occur.