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/* siginfo_t, sigevent and constants. Linux version.
Copyright (C) 1997 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _SIGNAL_H
# error "Never include this file directly. Use <signal.h> instead"
#endif
#define SI_MAX_SIZE 128
#define SI_PAD_SIZE ((SI_MAX_SIZE / sizeof (int)) - 3)
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
{
unsigned int _timer1;
unsigned int _timer2;
} _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. */
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
{
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_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_ASYNCIO = -4, /* 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_code' values for SIGILL signal. */
enum
{
ILL_ILLOPC = 1, /* Illegal opcode. */
#define ILL_ILLOPC ILL_ILLOPC
ILL_ILL_OPN, /* 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
};
/* Structure to transport application-defined values with signals. */
#define SIGEV_MAX_SIZE 64
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE / sizeof (int)) - 3)
typedef struct sigevent
{
sigval_t sigev_value;
int sigev_signo;
int sigev_notify;
union
{
int _pad[SIGEV_PAD_SIZE];
struct
{
void (*_function) __P ((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
};
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