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MiNT 0.96 pl14

#define	NSIG		31		/* number of signals recognized */



#define	SIGNULL		0		/* not really a signal */

#define SIGHUP		1		/* hangup signal */

#define SIGINT		2		/* sent by ^C */

#define SIGQUIT		3		/* quit signal */

#define SIGILL		4		/* illegal instruction */

#define SIGTRAP		5		/* trace trap */

#define SIGABRT		6		/* abort signal */

#define SIGPRIV		7		/* privilege violation */

#define SIGFPE		8		/* divide by zero */

#define SIGKILL		9		/* cannot be ignored */

#define SIGBUS		10		/* bus error */

#define SIGSEGV		11		/* illegal memory reference */

#define SIGSYS		12		/* bad argument to a system call */

#define SIGPIPE		13		/* broken pipe */

#define SIGALRM		14		/* alarm clock */

#define SIGTERM		15		/* software termination signal */



#define SIGURG		16		/* urgent condition on I/O channel */

#define SIGSTOP		17		/* stop signal not from terminal */

#define SIGTSTP		18		/* stop signal from terminal */

#define SIGCONT		19		/* continue stopped process */

#define SIGCHLD		20		/* child stopped or exited */

#define SIGTTIN		21		/* read by background process */

#define SIGTTOU		22		/* write by background process */

#define SIGIO		23		/* I/O possible on a descriptor */

#define SIGXCPU		24		/* CPU time exhausted */

#define SIGXFSZ		25		/* file size limited exceeded */

#define SIGVTALRM	26		/* virtual timer alarm */

#define SIGPROF		27		/* profiling timer expired */

#define SIGWINCH	28		/* window size changed */

#define SIGUSR1		29		/* user signal 1 */

#define SIGUSR2		30		/* user signal 2 */



#define       SIG_DFL	0

#define       SIG_IGN	1

#define       SIG_ERR	-1



/* which signals are not maskable? */

#define UNMASKABLE (1L | (1L << SIGKILL) | (1L << SIGCONT) | (1L << SIGSTOP))



/* which signals are stop signals? */

#define STOPSIGS ((1L<< SIGTTIN)|(1L<< SIGTTOU)|(1L<< SIGTSTP)|(1L<<SIGSTOP))



/* sigaction: extended POSIX signal handling facility */



struct sigaction {

	ulong	sa_handler;	/* pointer to signal handler */

	ulong	sa_mask;	/* additional signals masked during delivery */

	ushort	sa_flags;	/* signal specific flags */

/* signal flags */

#define SA_NOCLDSTOP	1	/* don't send SIGCHLD when child stops */

#define SA_RESET	0x8000	/* reset to SIG_DFL just before delivery */

};





#define SAUSER		(SA_NOCLDSTOP)	/* signal flags which the process may set */

#define SAPARENT	(0)		/* signal flags which the parent (of ptraced) processes may set */

#define SAKERNEL	(SA_RESET)	/* kernel only flags */

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