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/* siginfo_t, sigevent and constants.  Linux version.

   Copyright (C) 1997-2002, 2003 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

#include <bits/wordsize.h>

#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

# define __SI_MAX_SIZE     128

# if __WORDSIZE == 64

#  define __SI_PAD_SIZE     ((__SI_MAX_SIZE / sizeof (int)) - 4)

# else

#  define __SI_PAD_SIZE     ((__SI_MAX_SIZE / sizeof (int)) - 3)

# endif

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.  */

    union

      {

        int _pad[__SI_PAD_SIZE];

         /* kill().  */

        struct

          {

            __pid_t si_pid;     /* Sending process ID.  */

            __uid_t si_uid;     /* Real user ID of sending process.  */

          } _kill;

        /* POSIX.1b timers.  */

        struct

          {

            int si_tid;         /* Timer ID.  */

            int si_overrun;     /* Overrun count.  */

            sigval_t si_sigval; /* Signal value.  */

          } _timer;

        /* POSIX.1b signals.  */

        struct

          {

            __pid_t si_pid;     /* Sending process ID.  */

            __uid_t si_uid;     /* Real user ID of sending process.  */

            sigval_t si_sigval; /* Signal value.  */

          } _rt;

        /* SIGCHLD.  */

        struct

          {

            __pid_t si_pid;     /* Which child.  */

            __uid_t si_uid;     /* Real user ID of sending process.  */

            int si_status;      /* Exit value or signal.  */

            __clock_t si_utime;

            __clock_t si_stime;

          } _sigchld;

        /* SIGILL, SIGFPE, SIGSEGV, SIGBUS.  */

        struct

          {

            void *si_addr;      /* Faulting insn/memory ref.  */

          } _sigfault;

        /* SIGPOLL.  */

        struct

          {

            long int si_band;   /* Band event for SIGPOLL.  */

            int si_fd;

          } _sigpoll;

      } _sifields;

  } siginfo_t;

/* X/Open requires some more fields with fixed names.  */

# define si_pid         _sifields._kill.si_pid

# define si_uid         _sifields._kill.si_uid

# define si_timerid     _sifields._timer.si_tid

# define si_overrun     _sifields._timer.si_overrun

# define si_status      _sifields._sigchld.si_status

# define si_utime       _sifields._sigchld.si_utime

# define si_stime       _sifields._sigchld.si_stime

# define si_value       _sifields._rt.si_sigval

# define si_int         _sifields._rt.si_sigval.sival_int

# define si_ptr         _sifields._rt.si_sigval.sival_ptr

# define si_addr        _sifields._sigfault.si_addr

# define si_band        _sifields._sigpoll.si_band

# define si_fd          _sifields._sigpoll.si_fd

/* Values for `si_code'.  Positive values are reserved for kernel-generated

   signals.  */

enum

{

  SI_ASYNCNL = -60,             /* Sent by asynch name lookup completion.  */

# define SI_ASYNCNL     SI_ASYNCNL

  SI_TKILL = -6,                /* Sent by tkill.  */

# define SI_TKILL       SI_TKILL

  SI_SIGIO,                     /* Sent by queued SIGIO. */

# define SI_SIGIO       SI_SIGIO

  SI_ASYNCIO,                   /* Sent by AIO completion.  */

# define SI_ASYNCIO     SI_ASYNCIO

  SI_MESGQ,                     /* Sent by real time mesq state change.  */

# define SI_MESGQ       SI_MESGQ

  SI_TIMER,                     /* Sent by timer expiration.  */

# define SI_TIMER       SI_TIMER

  SI_QUEUE,                     /* Sent by sigqueue.  */

# define SI_QUEUE       SI_QUEUE

  SI_USER,                      /* Sent by kill, sigsend, raise.  */

# define SI_USER        SI_USER

  SI_KERNEL = 0x80              /* Send by kernel.  */

#define SI_KERNEL       SI_KERNEL

};

/* `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_INTDIV = 1,               /* Integer divide by zero.  */

# define FPE_INTDIV     FPE_INTDIV

  FPE_INTOVF,                   /* Integer overflow.  */

# define FPE_INTOVF     FPE_INTOVF

  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.  */

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

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

# define __SIGEV_MAX_SIZE       64

# if __WORDSIZE == 64

#  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 4)

# else

#  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 3)

# endif

typedef struct sigevent

  {

    sigval_t sigev_value;

    int sigev_signo;

    int sigev_notify;

    union

      {

        int _pad[__SIGEV_PAD_SIZE];

        /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the

           thread to receive the signal.  */

        __pid_t _tid;

        struct

          {

            void (*_function) (sigval_t);       /* Function to start.  */

            void *_attribute;                   /* Really pthread_attr_t.  */

          } _sigev_thread;

      } _sigev_un;

  } sigevent_t;

/* POSIX names to access some of the members.  */

# define sigev_notify_function   _sigev_un._sigev_thread._function

# define sigev_notify_attributes _sigev_un._sigev_thread._attribute

/* `sigev_notify' values.  */

enum

{

  SIGEV_SIGNAL = 0,              /* Notify via signal.  */

# define SIGEV_SIGNAL   SIGEV_SIGNAL

  SIGEV_NONE,                   /* Other notification: meaningless.  */

# define SIGEV_NONE     SIGEV_NONE

  SIGEV_THREAD,                 /* Deliver via thread creation.  */

# define SIGEV_THREAD   SIGEV_THREAD

  SIGEV_THREAD_ID = 4           /* Send signal to specific thread.  */

#define SIGEV_THREAD_ID SIGEV_THREAD_ID

};

#endif  /* have _SIGNAL_H.  */