signal.h File Reference

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Data Structures
struct	sigset_t
struct	sigaction
struct	sigaltstack
struct	sigaction2
Defines
#define	NSIG   64
#define	SIGHUP   1
#define	SIGINT   2
#define	SIGQUIT   3
#define	SIGILL   4
#define	SIGTRAP   5
#define	SIGABRT   6
#define	SIGEMT   7
#define	SIGFPE   8
#define	SIGKILL   9
#define	SIGBUS   10
#define	SIGSEGV   11
#define	SIGSYS   12
#define	SIGPIPE   13
#define	SIGALRM   14
#define	SIGTERM   15
#define	SIGURG   16
#define	SIGSTOP   17
#define	SIGTSTP   18
#define	SIGCONT   19
#define	SIGCHLD   20
#define	SIGTTIN   21
#define	SIGTTOU   22
#define	SIGIO   23
#define	SIGXCPU   24
#define	SIGXFSZ   25
#define	SIGVTALRM   26
#define	SIGPROF   27
#define	SIGWINCH   28
#define	SIGINFO   29
#define	SIGUSR1   30
#define	SIGUSR2   31
#define	SIGPWR   32
#define	SIGNOTIFY   33
#define	SIGSMP   34
#define	SIGVM86   35
#define	SIGMAX   35
#define	SIG_DFL   ((void (*) (int)) 0)
#define	SIG_IGN   ((void (*) (int)) 1)
#define	SIG_ERR   ((void (*) (int)) -1)
#define	SIG_BLOCK   1
#define	SIG_UNBLOCK   2
#define	SIG_SETMASK   3
#define	__sigmask(n)   (1 << (((unsigned int)(n) - 1) & 31))
#define	__sigword(n)   (((unsigned int)(n) - 1) >> 5)
#define	__sigisempty(s)
#define	__sigaddset(s, n)   ((s)->__bits[__sigword(n)] |= __sigmask(n))
#define	__sigdelset(s, n)   ((s)->__bits[__sigword(n)] &= ~__sigmask(n))
#define	__sigismember(s, n)   (((s)->__bits[__sigword(n)] & __sigmask(n)) != 0)
#define	__sigemptyset(s)
#define	__sigfillset(s)
#define	SA_ONSTACK   0x0001
#define	SA_RESTART   0x0002
#define	SA_RESETHAND   0x0004
#define	SA_NODEFER   0x0010
#define	SA_NOCLDSTOP   0x0008
#define	SA_NOCLDWAIT   0x0020
#define	MINSIGSTKSZ   8192
#define	SIGSTKSZ   (MINSIGSTKSZ + 32768)
#define	SS_ONSTACK   0x0001
#define	SS_DISABLE   0x0004
#define	ILL_ILLOPC   1
#define	ILL_ILLOPN   2
#define	ILL_ILLADR   3
#define	ILL_ILLTRP   4
#define	ILL_PRVOPC   5
#define	ILL_PRVREG   6
#define	ILL_COPROC   7
#define	ILL_BADSTK   8
#define	NSIGILL   8
#define	FPE_INTDIV   1
#define	FPE_INTOVF   2
#define	FPE_FLTDIV   3
#define	FPE_FLTOVF   4
#define	FPE_FLTUND   5
#define	FPE_FLTRES   6
#define	FPE_FLTINV   7
#define	FPE_FLTSUB   8
#define	NSIGFPE   8
#define	SEGV_MAPERR   1
#define	SEGV_ACCERR   2
#define	SEGV_ACCERR2   3
#define	SEGV_WIREERR   4
#define	NSIGSEGV   2
#define	BUS_ADRALN   1
#define	BUS_ADRERR   2
#define	BUS_OBJERR   3
#define	NSIGBUS   3
#define	TRAP_BRKPT   1
#define	TRAP_TRACE   2
#define	NSIGTRAP   2
Typedefs
typedef void(*	sig_t )(int)
typedef sigaltstack	stack_t

---

Define Documentation

#define __sigaddset (  s, n   )     ((s)->__bits[__sigword(n)] |= __sigmask(n))

#define __sigdelset (  s, n   )     ((s)->__bits[__sigword(n)] &= ~__sigmask(n))

#define __sigemptyset (  s   )

Value: ((s)->__bits[0] = 0x00000000, \ (s)->__bits[1] = 0x00000000, \ (s)->__bits[2] = 0x00000000, \ (s)->__bits[3] = 0x00000000)

#define __sigfillset (  s   )

Value: ((s)->__bits[0] = 0xffffffff, \ (s)->__bits[1] = 0xffffffff, \ (s)->__bits[2] = 0xffffffff, \ (s)->__bits[3] = 0xffffffff)

#define __sigisempty (  s   )

Value: ((s)->__bits[0] == 0u &&\ (s)->__bits[1] == 0u &&\ (s)->__bits[2] == 0u &&\ (s)->__bits[3] == 0u)

#define __sigismember (  s, n   )     (((s)->__bits[__sigword(n)] & __sigmask(n)) != 0)

#define __sigmask (  n   )     (1 << (((unsigned int)(n) - 1) & 31))

#define __sigword (  n   )     (((unsigned int)(n) - 1) >> 5)

#define BUS_ADRALN   1

invalid address alignment

#define BUS_ADRERR   2

non-existant physical address

#define BUS_OBJERR   3

object specific hardware error

#define FPE_FLTDIV   3

floating point divide by zero

#define FPE_FLTINV   7

floating point invalid operation

#define FPE_FLTOVF   4

floating point overflow

#define FPE_FLTRES   6

floating point inexact result

#define FPE_FLTSUB   8

subscript out of range

#define FPE_FLTUND   5

floating point underflow

#define FPE_INTDIV   1

integer divide by zero

#define FPE_INTOVF   2

integer overflow

#define ILL_BADSTK   8

internal stack error

#define ILL_COPROC   7

coprocessor error

#define ILL_ILLADR   3

illegal addressing mode

#define ILL_ILLOPC   1

illegal opcode

#define ILL_ILLOPN   2

illegal operand

#define ILL_ILLTRP   4

illegal trap

#define ILL_PRVOPC   5

privileged opcode

#define ILL_PRVREG   6

privileged register

#define MINSIGSTKSZ   8192

minimum allowable stack

#define NSIG   64

just to say we use sigset_t

#define NSIGBUS   3

#define NSIGFPE   8

#define NSIGILL   8

#define NSIGSEGV   2

#define NSIGTRAP   2

#define SA_NOCLDSTOP   0x0008

do not generate SIGCHLD on child stop

#define SA_NOCLDWAIT   0x0020

do not generate zombies on unwaited child

#define SA_NODEFER   0x0010

don't mask the signal we're delivering

#define SA_ONSTACK   0x0001

take signal on signal stack

#define SA_RESETHAND   0x0004

reset to SIG_DFL when taking signal

#define SA_RESTART   0x0002

restart system on signal return

#define SEGV_ACCERR   2

invalid permissions for mapped object

#define SEGV_ACCERR2   3

invalid permissions for mapped object

#define SEGV_MAPERR   1

address not mapped to object

#define SEGV_WIREERR   4

wire failed

#define SIG_BLOCK   1

block specified signal set

#define SIG_DFL   ((void (*) (int)) 0)

#define SIG_ERR   ((void (*) (int)) -1)

#define SIG_IGN   ((void (*) (int)) 1)

#define SIG_SETMASK   3

set specified signal set

#define SIG_UNBLOCK   2

unblock specified signal set

#define SIGABRT   6

abort()

#define SIGALRM   14

alarm clock

#define SIGBUS   10

bus error

#define SIGCHLD   20

to parent on child stop or exit

#define SIGCONT   19

continue a stopped process

#define SIGEMT   7

EMT instruction

#define SIGFPE   8

floating point exception

#define SIGHUP   1

hangup

#define SIGILL   4

illegal instruction

#define SIGINFO   29

information request

#define SIGINT   2

interrupt

#define SIGIO   23

input/output possible signal

#define SIGKILL   9

kill (cannot be caught or ignored)

#define SIGMAX   35

Define this as number of the highest signal (lseos extension)

#define SIGNOTIFY   33

notify/collect

#define SIGPIPE   13

write on a pipe with no one to read it

#define SIGPROF   27

profiling time alarm

#define SIGPWR   32

pwer fail/restart (not reset when caught)

#define SIGQUIT   3

quit

#define SIGSEGV   11

segmentation violation

#define SIGSMP   34

notify applications that system operates in smp (lseos extension)

#define SIGSTKSZ   (MINSIGSTKSZ + 32768)

recommended stack size

#define SIGSTOP   17

sendable stop signal not from tty

#define SIGSYS   12

bad argument to system call

#define SIGTERM   15

software termination signal from kill

#define SIGTRAP   5

trace trap (not reset when caught)

#define SIGTSTP   18

stop signal from tty

#define SIGTTIN   21

to readers pgrp upon background tty read

#define SIGTTOU   22

like TTIN for output if (tp->t_local&LTOSTOP)

#define SIGURG   16

urgent condition on IO channel

#define SIGUSR1   30

user defined signal 1

#define SIGUSR2   31

user defined signal 2

#define SIGVM86   35

#define SIGVTALRM   26

virtual time alarm

#define SIGWINCH   28

window size changes

#define SIGXCPU   24

exceeded CPU time limit

#define SIGXFSZ   25

exceeded file size limit

#define SS_DISABLE   0x0004

disable taking signals on alternate stack

#define SS_ONSTACK   0x0001

take signals on alternate stack

#define TRAP_BRKPT   1

process breakpoint

#define TRAP_TRACE   2

process trace trap

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Typedef Documentation

typedef void(* sig_t)(int)

type of signal function

typedef struct sigaltstack stack_t

---