Chris Down
b64b996119
Add new pidref_has_sigcgt() and pidref_has_sigblk() helpers. These read the SigCgt and SigBlk bitmasks from /proc/<pid>/status to detect either traditional signal handlers installed via sigaction(2), or blocked signals that are typically handled via signalfd(2), such as through sd_event_add_signal(). Both mechanisms represent valid ways to handle a signal without invoking the default action. Share the parsing and pidref verification between the two public helpers.
System and Service Manager
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