/* siginfo_t, sigevent and constants.  FreeBSD version.
   Copyright (C) 1997-1998, 2000-2002 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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#if !defined _SIGNAL_H && !defined __need_siginfo_t \
    && !defined __need_sigevent_t
# error "Never include this file directly.  Use <signal.h> instead"
#endif

#if (!defined __have_sigval_t \
     && (defined _SIGNAL_H || defined __need_siginfo_t \
	 || defined __need_sigevent_t))
# define __have_sigval_t 1

/* Type for data associated with a signal.  */
typedef union sigval
  {
    int sival_int;
    void *sival_ptr;
  } sigval_t;
#endif

#if (!defined __have_siginfo_t \
     && (defined _SIGNAL_H || defined __need_siginfo_t))
# define __have_siginfo_t	1

#include <bits/types.h>		/* __pid_t, __uid_t */

typedef struct siginfo
  {
    int si_signo;		/* Signal number.  */
    int si_errno;		/* If non-zero, an errno value associated with
				   this signal, as defined in <errno.h>.  */
    int si_code;		/* Signal code.  */
    __pid_t si_pid;		/* Sending process ID.  */
    __uid_t si_uid;		/* Real user ID of sending process.  */
    int si_status;		/* Exit value or signal.  */
    void *si_addr;		/* Address of faulting instruction.  */
    union sigval si_value;	/* Signal value.  */
    union
      {
	struct
	  {
	    int     _trapno;	/* machine specific trap code */
	   } _fault;

	/* POSIX.1b timers.  */
	struct
	  {
	    int     _timerid;
	    int     _overrun;
	  } _timer;

	struct
	  {
	    int     _mqd;
	  } _mesgq;

	/* SIGPOLL.  */
	struct
	  {
	    long    _band;	/* band event for SIGPOLL.  */
	  } _poll;

	struct
	  {
	    long    __spare1__;
	    int     __spare2__[7];
	  } __spare__;
	} _reason;
  } siginfo_t;


/* X/Open requires some more fields with fixed names.  */
# define si_int		si_value.sival_int
# define si_ptr		si_value.sival_ptr
# define si_trapno	_reason._fault._trapno
# define si_timerid	_reason._timer._timerid
# define si_overrun	_reason._timer._overrun
# define si_mqd		_reason._mesgq._mqd
# define si_band	_reason._poll._band


/* Values for `si_code'.  Positive values are reserved for kernel-generated
   signals.  */
enum
{
  SI_ASYNCIO = 0x10004,		/* Sent by AIO completion.  */
# define SI_ASYNCIO	SI_ASYNCIO
  SI_MESGQ = 0x10005,		/* Sent by real time mesq state change.  */
# define SI_MESGQ	SI_MESGQ
  SI_TIMER = 0x10003,		/* Sent by timer expiration.  */
# define SI_TIMER	SI_TIMER
  SI_QUEUE = 0x10002,		/* Sent by sigqueue.  */
# define SI_QUEUE	SI_QUEUE
  SI_USER = 0x10001,		/* Sent by kill, sigsend, raise.  */
# define SI_USER	SI_USER
  SI_KERNEL = 0x10006,
# define SI_KERNEL	SI_KERNEL
  SI_LWP = 0x10007,		/* Sent by thr_kill.  */
# define SI_LWP		SI_LWP
  SI_UNDEFINED = 0
# define SI_UNDEFINED	SI_UNDEFINED
};

/* `si_code' values for SIGILL signal.  */
enum
{
  ILL_ILLOPC = 1,		/* Illegal opcode.  */
# define ILL_ILLOPC	ILL_ILLOPC
  ILL_ILLOPN,			/* Illegal operand.  */
# define ILL_ILLOPN	ILL_ILLOPN
  ILL_ILLADR,			/* Illegal addressing mode.  */
# define ILL_ILLADR	ILL_ILLADR
  ILL_ILLTRP,			/* Illegal trap. */
# define ILL_ILLTRP	ILL_ILLTRP
  ILL_PRVOPC,			/* Privileged opcode.  */
# define ILL_PRVOPC	ILL_PRVOPC
  ILL_PRVREG,			/* Privileged register.  */
# define ILL_PRVREG	ILL_PRVREG
  ILL_COPROC,			/* Coprocessor error.  */
# define ILL_COPROC	ILL_COPROC
  ILL_BADSTK			/* Internal stack error.  */
# define ILL_BADSTK	ILL_BADSTK
};

/* `si_code' values for SIGFPE signal.  */
enum
{
  FPE_INTOVF = 1,		/* Integer overflow.  */
# define FPE_INTOVF	FPE_INTOVF
  FPE_INTDIV,			/* Integer divide by zero.  */
# define FPE_INTDIV	FPE_INTDIV
  FPE_FLTDIV,			/* Floating point divide by zero.  */
# define FPE_FLTDIV	FPE_FLTDIV
  FPE_FLTOVF,			/* Floating point overflow.  */
# define FPE_FLTOVF	FPE_FLTOVF
  FPE_FLTUND,			/* Floating point underflow.  */
# define FPE_FLTUND	FPE_FLTUND
  FPE_FLTRES,			/* Floating point inexact result.  */
# define FPE_FLTRES	FPE_FLTRES
  FPE_FLTINV,			/* Floating point invalid operation.  */
# define FPE_FLTINV	FPE_FLTINV
  FPE_FLTSUB			/* Subscript out of range.  */
# define FPE_FLTSUB	FPE_FLTSUB
};

/* `si_code' values for SIGSEGV signal.  */
enum
{
  SEGV_MAPERR = 1,		/* Address not mapped to object.  */
# define SEGV_MAPERR	SEGV_MAPERR
  SEGV_ACCERR			/* Invalid permissions for mapped object.  */
# define SEGV_ACCERR	SEGV_ACCERR
};

/* `si_code' values for SIGBUS signal.  */
enum
{
  BUS_ADRALN = 1,		/* Invalid address alignment.  */
# define BUS_ADRALN	BUS_ADRALN
  BUS_ADRERR,			/* Non-existant physical address.  */
# define BUS_ADRERR	BUS_ADRERR
  BUS_OBJERR			/* Object specific hardware error.  */
# define BUS_OBJERR	BUS_OBJERR
};

/* `si_code' values for SIGTRAP signal.  */
enum
{
  TRAP_BRKPT = 1,		/* Process breakpoint.  */
# define TRAP_BRKPT	TRAP_BRKPT
  TRAP_TRACE			/* Process trace trap.  */
# define TRAP_TRACE	TRAP_TRACE
};

/* `si_code' values for SIGCHLD signal.  */
/* XXX These are only used by the waitid() function, not by the kernel.  */
enum
{
  CLD_EXITED = 1,		/* Child has exited.  */
# define CLD_EXITED	CLD_EXITED
  CLD_KILLED,			/* Child was killed.  */
# define CLD_KILLED	CLD_KILLED
  CLD_DUMPED,			/* Child terminated abnormally.  */
# define CLD_DUMPED	CLD_DUMPED
  CLD_TRAPPED,			/* Traced child has trapped.  */
# define CLD_TRAPPED	CLD_TRAPPED
  CLD_STOPPED,			/* Child has stopped.  */
# define CLD_STOPPED	CLD_STOPPED
  CLD_CONTINUED			/* Stopped child has continued.  */
# define CLD_CONTINUED	CLD_CONTINUED
};

/* `si_code' values for SIGPOLL signal.  */
enum
{
  POLL_IN = 1,			/* Data input available.  */
# define POLL_IN	POLL_IN
  POLL_OUT,			/* Output buffers available.  */
# define POLL_OUT	POLL_OUT
  POLL_MSG,			/* Input message available.   */
# define POLL_MSG	POLL_MSG
  POLL_ERR,			/* I/O error.  */
# define POLL_ERR	POLL_ERR
  POLL_PRI,			/* High priority input available.  */
# define POLL_PRI	POLL_PRI
  POLL_HUP			/* Device disconnected.  */
# define POLL_HUP	POLL_HUP
};

# undef __need_siginfo_t
#endif	/* !have siginfo_t && (have _SIGNAL_H || need siginfo_t).  */


#if (defined _SIGNAL_H || defined __need_sigevent_t) \
    && !defined __have_sigevent_t
# define __have_sigevent_t	1

#include <sys/_types.h>		/* __lwpid_t */

/* Forward declaration.  */
# ifndef __have_pthread_attr_t
typedef union pthread_attr_t pthread_attr_t;
#  define __have_pthread_attr_t 1
# endif

/* Structure to transport application-defined values with signals.  */

typedef struct sigevent
  {
    int sigev_notify;
    int sigev_signo;
    sigval_t sigev_value;
    union
    {
      __lwpid_t threadid;
      struct
      {
	void (*_function) (sigval_t);	/* Function to start.  */
	pthread_attr_t *_attribute;	/* Really pthread_attr_t.  */
      } _sigev_thread;
    } _sigev_un;
  } sigevent_t;

#define sigev_notify_kqueue	sigev_signo
#define sigev_notify_function   _sigev_un._sigev_thread._function
#define sigev_notify_attributes	_sigev_un._sigev_thread._attribute
#define sigev_notify_thread_id	_sigev_un.threadid

/* `sigev_notify' values.  */
enum
{
  SIGEV_SIGNAL = 1,		/* Notify via signal.  */
# define SIGEV_SIGNAL	SIGEV_SIGNAL
  SIGEV_NONE = 0,		/* Other notification: meaningless.  */
# define SIGEV_NONE	SIGEV_NONE
  /* Not yet supported by the kernel.  */
  SIGEV_THREAD = 2,		/* Deliver via thread creation.  */
# define SIGEV_THREAD	SIGEV_THREAD
  SIGEV_KEVENT = 3,
# define SIGEV_KEVENT	SIGEV_KEVENT
  SIGEV_THREAD_ID = 4,
# define SIGEV_THREAD_ID	SIGEV_THREAD_ID
};

#endif	/* have _SIGNAL_H.  */