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SWI-Prolog catches the Unix signals SIGINT, SIGFPE and SIGSEGV. To
avoid problems with foreign code attempting to catch these signals
foreign code should call PL_signal() to install signal handlers rather
than the Unix library function signal(). SWI-Prolog will always handle
SIGINT itself. SIGFPE and SIGSEGV are passed to the foreign code
handlers if Prolog did not expect that signal.
- void
- (*PL_signal(sig, func))()
This function should be used to install signal handlers rather than the
Unix library function signal(). It ensures consistent signal handling
between SWI-Prolog and the foreign code and reinstalls signal handlers
if a state created with save_program/1 is restarted.
Passani Luca
Tue Nov 14 08:58:33 MET 1995