To understand this better, let's take a fictional example: say we trap a signal n, and the execution time for our signal handler for signal n is 55 ms (milliseconds). Also, visualize a scenario in which, via a timer (for a while at least), signal n is delivered to the process continually at 10-ms intervals. Now let's examine what would happen in the default case and the case in which we use the SA_NODEFER flag.
Signal behavior when masked
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