[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / s390 / bits / sigaction.h

/* Definitions for 31 & 64 bit S/390 sigaction.
   Copyright (C) 2001-2014 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#ifndef _SIGNAL_H
# error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
#endif

#include <bits/wordsize.h>

#if __WORDSIZE == 64
/* Structure describing the action to be taken when a signal arrives.  */
struct sigaction
  {
    /* Signal handler.	*/
#ifdef __USE_POSIX199309
    union
      {
	/* Used if SA_SIGINFO is not set.  */
	__sighandler_t sa_handler;
	/* Used if SA_SIGINFO is set.  */
	void (*sa_sigaction) (int, siginfo_t *, void *);
      }
    __sigaction_handler;
# define sa_handler	__sigaction_handler.sa_handler
# define sa_sigaction	__sigaction_handler.sa_sigaction
#else
    __sighandler_t sa_handler;
#endif

    /* Special flags.  */
    unsigned long int sa_flags;

    /* Restore handler.  */
    void (*sa_restorer) (void);

    /* Additional set of signals to be blocked.	 */
    __sigset_t sa_mask;
  };
#else
/* Structure describing the action to be taken when a signal arrives.  */
struct sigaction
  {
    /* Signal handler.  */
#ifdef __USE_POSIX199309
    union
      {
	/* Used if SA_SIGINFO is not set.  */
	__sighandler_t sa_handler;
	/* Used if SA_SIGINFO is set.  */
	void (*sa_sigaction) (int, siginfo_t *, void *);
      }
    __sigaction_handler;
# define sa_handler	__sigaction_handler.sa_handler
# define sa_sigaction	__sigaction_handler.sa_sigaction
#else
    __sighandler_t sa_handler;
#endif

    /* Additional set of signals to be blocked.  */
    __sigset_t sa_mask;

    /* Special flags.  */
    int sa_flags;

    /* Restore handler.  */
    void (*sa_restorer) (void);
  };
#endif

/* Bits in `sa_flags'.  */
#define	SA_NOCLDSTOP  1		 /* Don't send SIGCHLD when children stop.  */
#define SA_NOCLDWAIT  2		 /* Don't create zombie on child death.  */
#define SA_SIGINFO    4		 /* Invoke signal-catching function with
				    three arguments instead of one.  */
#if defined __USE_UNIX98 || defined __USE_MISC
# define SA_ONSTACK   0x08000000 /* Use signal stack by using `sa_restorer'. */
#endif
#if defined __USE_UNIX98 || defined __USE_MISC || defined __USE_XOPEN2K8
# define SA_RESTART   0x10000000 /* Restart syscall on signal return.  */
# define SA_NODEFER   0x40000000 /* Don't automatically block the signal when
				    its handler is being executed.	 */
# define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler.  */
#endif
#ifdef __USE_MISC
# define SA_INTERRUPT 0x20000000 /* Historical no-op.  */

/* Some aliases for the SA_ constants.	*/
# define SA_NOMASK    SA_NODEFER
# define SA_ONESHOT   SA_RESETHAND
# define SA_STACK     SA_ONSTACK
#endif

/* Values for the HOW argument to `sigprocmask'.  */
#define	SIG_BLOCK     0		 /* Block signals.  */
#define	SIG_UNBLOCK   1		 /* Unblock signals.  */
#define	SIG_SETMASK   2		 /* Set the set of blocked signals.  */
Commit	Line	Data
7bf75551	1	/* Definitions for 31 & 64 bit S/390 sigaction.
d4697bc9	2	Copyright (C) 2001-2014 Free Software Foundation, Inc.
ffeac417 UD	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
ffeac417 UD	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2	13	Lesser General Public License for more details.
ffeac417	14
41bdb6e2	15	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	16	License along with the GNU C Library; if not, see
59ba27a6 PE	17	<http://www.gnu.org/licenses/>. */
ffeac417 UD	18
	19	#ifndef _SIGNAL_H
	20	# error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
	21	#endif
	22
7bf75551 UD	23	#include <bits/wordsize.h>
	24
	25	#if __WORDSIZE == 64
ffeac417 UD	26	/* Structure describing the action to be taken when a signal arrives. */
	27	struct sigaction
	28	{
	29	/* Signal handler. */
	30	#ifdef __USE_POSIX199309
	31	union
	32	{
	33	/* Used if SA_SIGINFO is not set. */
	34	__sighandler_t sa_handler;
	35	/* Used if SA_SIGINFO is set. */
	36	void (sa_sigaction) (int, siginfo_t , void *);
	37	}
	38	__sigaction_handler;
	39	# define sa_handler __sigaction_handler.sa_handler
	40	# define sa_sigaction __sigaction_handler.sa_sigaction
	41	#else
	42	__sighandler_t sa_handler;
	43	#endif
	44
	45	/* Special flags. */
	46	unsigned long int sa_flags;
	47
778e0ef7 UD	48	/* Restore handler. */
	49	void (*sa_restorer) (void);
	50
ffeac417 UD	51	/* Additional set of signals to be blocked. */
	52	__sigset_t sa_mask;
	53	};
7bf75551 UD	54	#else
	55	/* Structure describing the action to be taken when a signal arrives. */
	56	struct sigaction
	57	{
	58	/* Signal handler. */
	59	#ifdef __USE_POSIX199309
	60	union
	61	{
	62	/* Used if SA_SIGINFO is not set. */
	63	__sighandler_t sa_handler;
	64	/* Used if SA_SIGINFO is set. */
	65	void (sa_sigaction) (int, siginfo_t , void *);
	66	}
	67	__sigaction_handler;
	68	# define sa_handler __sigaction_handler.sa_handler
	69	# define sa_sigaction __sigaction_handler.sa_sigaction
	70	#else
	71	__sighandler_t sa_handler;
	72	#endif
	73
	74	/* Additional set of signals to be blocked. */
	75	__sigset_t sa_mask;
	76
	77	/* Special flags. */
	78	int sa_flags;
	79
	80	/* Restore handler. */
	81	void (*sa_restorer) (void);
	82	};
	83	#endif
ffeac417	84
7bf75551 UD	85	/* Bits in `sa_flags'. */
	86	#define SA_NOCLDSTOP 1 /* Don't send SIGCHLD when children stop. */
	87	#define SA_NOCLDWAIT 2 /* Don't create zombie on child death. */
	88	#define SA_SIGINFO 4 /* Invoke signal-catching function with
	89	three arguments instead of one. */
61423e13	90	#if defined __USE_UNIX98 \|\| defined __USE_MISC
ffeac417	91	# define SA_ONSTACK 0x08000000 /* Use signal stack by using `sa_restorer'. */
33780b6d UD	92	#endif
33780b6d UD	93	#if defined __USE_UNIX98 \|\| defined __USE_MISC \|\| defined __USE_XOPEN2K8
ffeac417	94	# define SA_RESTART 0x10000000 /* Restart syscall on signal return. */
7bf75551 UD	95	# define SA_NODEFER 0x40000000 /* Don't automatically block the signal when
7bf75551 UD	96	its handler is being executed. */
ffeac417 UD	97	# define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler. */
	98	#endif
	99	#ifdef __USE_MISC
7bf75551	100	# define SA_INTERRUPT 0x20000000 /* Historical no-op. */
ffeac417 UD	101
	102	/* Some aliases for the SA_ constants. */
	103	# define SA_NOMASK SA_NODEFER
	104	# define SA_ONESHOT SA_RESETHAND
	105	# define SA_STACK SA_ONSTACK
	106	#endif
	107
	108	/* Values for the HOW argument to `sigprocmask'. */
7bf75551 UD	109	#define SIG_BLOCK 0 /* Block signals. */
	110	#define SIG_UNBLOCK 1 /* Unblock signals. */
	111	#define SIG_SETMASK 2 /* Set the set of blocked signals. */