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signal.d
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signal.d
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/**
* D header file for POSIX.
*
* Copyright: Copyright Sean Kelly 2005 - 2009.
* License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
* Authors: Sean Kelly,
Alex Rønne Petersen
* Standards: The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition
* Source: $(DRUNTIMESRC core/sys/posix/_signal.d)
*/
module core.sys.posix.signal;
private import core.sys.posix.config;
public import core.stdc.signal;
public import core.stdc.stddef; // for size_t
public import core.sys.posix.sys.types; // for pid_t
//public import core.sys.posix.time; // for timespec, now defined here
version (Posix):
extern (C):
//nothrow: // this causes Issue 12738
//
// Required
//
/*
SIG_DFL (defined in core.stdc.signal)
SIG_ERR (defined in core.stdc.signal)
SIG_IGN (defined in core.stdc.signal)
sig_atomic_t (defined in core.stdc.signal)
SIGEV_NONE
SIGEV_SIGNAL
SIGEV_THREAD
union sigval
{
int sival_int;
void* sival_ptr;
}
SIGRTMIN
SIGRTMAX
SIGABRT (defined in core.stdc.signal)
SIGALRM
SIGBUS
SIGCHLD
SIGCONT
SIGFPE (defined in core.stdc.signal)
SIGHUP
SIGILL (defined in core.stdc.signal)
SIGINT (defined in core.stdc.signal)
SIGKILL
SIGPIPE
SIGQUIT
SIGSEGV (defined in core.stdc.signal)
SIGSTOP
SIGTERM (defined in core.stdc.signal)
SIGTSTP
SIGTTIN
SIGTTOU
SIGUSR1
SIGUSR2
SIGURG
struct sigaction_t
{
sigfn_t sa_handler;
sigset_t sa_mask;
sigactfn_t sa_sigaction;
}
sigfn_t signal(int sig, sigfn_t func); (defined in core.stdc.signal)
int raise(int sig); (defined in core.stdc.signal)
*/
//SIG_DFL (defined in core.stdc.signal)
//SIG_ERR (defined in core.stdc.signal)
//SIG_IGN (defined in core.stdc.signal)
//sig_atomic_t (defined in core.stdc.signal)
version( Posix )
{
private alias void function(int) sigfn_t;
private alias void function(int, siginfo_t*, void*) sigactfn_t;
// nothrow versions
nothrow @nogc
{
private alias void function(int) sigfn_t2;
private alias void function(int, siginfo_t*, void*) sigactfn_t2;
}
enum
{
SIGEV_SIGNAL,
SIGEV_NONE,
SIGEV_THREAD
}
union sigval
{
int sival_int;
void* sival_ptr;
}
version( Solaris )
{
import core.sys.posix.unistd;
private int _sigrtmin() { return cast(int) sysconf(_SC_SIGRT_MIN); }
private int _sigrtmax() { return cast(int) sysconf(_SC_SIGRT_MAX); }
alias _sigrtmin SIGRTMIN;
alias _sigrtmax SIGRTMAX;
}
else
{
private extern (C) nothrow @nogc
{
int __libc_current_sigrtmin();
int __libc_current_sigrtmax();
}
alias __libc_current_sigrtmin SIGRTMIN;
alias __libc_current_sigrtmax SIGRTMAX;
}
}
version( linux )
{
version (X86)
{
//SIGABRT (defined in core.stdc.signal)
enum SIGALRM = 14;
enum SIGBUS = 7;
enum SIGCHLD = 17;
enum SIGCONT = 18;
//SIGFPE (defined in core.stdc.signal)
enum SIGHUP = 1;
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
//SIGSEGV (defined in core.stdc.signal)
enum SIGSTOP = 19;
//SIGTERM (defined in core.stdc.signal)
enum SIGTSTP = 20;
enum SIGTTIN = 21;
enum SIGTTOU = 22;
enum SIGUSR1 = 10;
enum SIGUSR2 = 12;
enum SIGURG = 23;
}
else version (X86_64)
{
//SIGABRT (defined in core.stdc.signal)
enum SIGALRM = 14;
enum SIGBUS = 7;
enum SIGCHLD = 17;
enum SIGCONT = 18;
//SIGFPE (defined in core.stdc.signal)
enum SIGHUP = 1;
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
//SIGSEGV (defined in core.stdc.signal)
enum SIGSTOP = 19;
//SIGTERM (defined in core.stdc.signal)
enum SIGTSTP = 20;
enum SIGTTIN = 21;
enum SIGTTOU = 22;
enum SIGUSR1 = 10;
enum SIGUSR2 = 12;
enum SIGURG = 23;
}
else version (MIPS32)
{
//SIGABRT (defined in core.stdc.signal)
enum SIGALRM = 14;
enum SIGBUS = 10;
enum SIGCHLD = 18;
enum SIGCONT = 25;
//SIGFPE (defined in core.stdc.signal)
enum SIGHUP = 1;
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
//SIGSEGV (defined in core.stdc.signal)
enum SIGSTOP = 23;
//SIGTERM (defined in core.stdc.signal)
enum SIGTSTP = 24;
enum SIGTTIN = 26;
enum SIGTTOU = 27;
enum SIGUSR1 = 16;
enum SIGUSR2 = 17;
enum SIGURG = 21;
}
else version (MIPS64)
{
//SIGABRT (defined in core.stdc.signal)
enum SIGALRM = 14;
enum SIGBUS = 10;
enum SIGCHLD = 18;
enum SIGCONT = 25;
//SIGFPE (defined in core.stdc.signal)
enum SIGHUP = 1;
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
//SIGSEGV (defined in core.stdc.signal)
enum SIGSTOP = 23;
//SIGTERM (defined in core.stdc.signal)
enum SIGTSTP = 24;
enum SIGTTIN = 26;
enum SIGTTOU = 27;
enum SIGUSR1 = 16;
enum SIGUSR2 = 17;
enum SIGURG = 21;
}
else version (PPC)
{
//SIGABRT (defined in core.stdc.signal)
enum SIGALRM = 14;
enum SIGBUS = 7;
enum SIGCHLD = 17;
enum SIGCONT = 18;
//SIGFPE (defined in core.stdc.signal)
enum SIGHUP = 1;
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
//SIGSEGV (defined in core.stdc.signal)
enum SIGSTOP = 19;
//SIGTERM (defined in core.stdc.signal)
enum SIGTSTP = 20;
enum SIGTTIN = 21;
enum SIGTTOU = 22;
enum SIGUSR1 = 10;
enum SIGUSR2 = 12;
enum SIGURG = 23;
}
else version (PPC64)
{
//SIGABRT (defined in core.stdc.signal)
enum SIGALRM = 14;
enum SIGBUS = 7;
enum SIGCHLD = 17;
enum SIGCONT = 18;
//SIGFPE (defined in core.stdc.signal)
enum SIGHUP = 1;
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
//SIGSEGV (defined in core.stdc.signal)
enum SIGSTOP = 19;
//SIGTERM (defined in core.stdc.signal)
enum SIGTSTP = 20;
enum SIGTTIN = 21;
enum SIGTTOU = 22;
enum SIGUSR1 = 10;
enum SIGUSR2 = 12;
enum SIGURG = 23;
}
else version (ARM)
{
//SIGABRT (defined in core.stdc.signal)
enum SIGALRM = 14;
enum SIGBUS = 7;
enum SIGCHLD = 17;
enum SIGCONT = 18;
//SIGFPE (defined in core.stdc.signal)
enum SIGHUP = 1;
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
//SIGSEGV (defined in core.stdc.signal)
enum SIGSTOP = 19;
//SIGTERM (defined in core.stdc.signal)
enum SIGTSTP = 20;
enum SIGTTIN = 21;
enum SIGTTOU = 22;
enum SIGUSR1 = 10;
enum SIGUSR2 = 12;
enum SIGURG = 23;
}
else version (AArch64)
{
//SIGABRT (defined in core.stdc.signal)
enum SIGALRM = 14;
enum SIGBUS = 7;
enum SIGCHLD = 17;
enum SIGCONT = 18;
//SIGFPE (defined in core.stdc.signal)
enum SIGHUP = 1;
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
//SIGSEGV (defined in core.stdc.signal)
enum SIGSTOP = 19;
//SIGTERM (defined in core.stdc.signal)
enum SIGTSTP = 20;
enum SIGTTIN = 21;
enum SIGTTOU = 22;
enum SIGUSR1 = 10;
enum SIGUSR2 = 12;
enum SIGURG = 23;
}
else
static assert(0, "unimplemented");
}
else version( OSX )
{
//SIGABRT (defined in core.stdc.signal)
enum SIGALRM = 14;
enum SIGBUS = 10;
enum SIGCHLD = 20;
enum SIGCONT = 19;
//SIGFPE (defined in core.stdc.signal)
enum SIGHUP = 1;
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
//SIGSEGV (defined in core.stdc.signal)
enum SIGSTOP = 17;
//SIGTERM (defined in core.stdc.signal)
enum SIGTSTP = 18;
enum SIGTTIN = 21;
enum SIGTTOU = 22;
enum SIGUSR1 = 30;
enum SIGUSR2 = 31;
enum SIGURG = 16;
}
else version( FreeBSD )
{
//SIGABRT (defined in core.stdc.signal)
enum SIGALRM = 14;
enum SIGBUS = 10;
enum SIGCHLD = 20;
enum SIGCONT = 19;
//SIGFPE (defined in core.stdc.signal)
enum SIGHUP = 1;
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
//SIGSEGV (defined in core.stdc.signal)
enum SIGSTOP = 17;
//SIGTERM (defined in core.stdc.signal)
enum SIGTSTP = 18;
enum SIGTTIN = 21;
enum SIGTTOU = 22;
enum SIGUSR1 = 30;
enum SIGUSR2 = 31;
enum SIGURG = 16;
}
else version (Solaris)
{
enum SIGALRM = 14;
enum SIGBUS = 10;
enum SIGCHLD = 18;
enum SIGCONT = 25;
enum SIGHUP = 1;
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
enum SIGSTOP = 23;
enum SIGTSTP = 24;
enum SIGTTIN = 26;
enum SIGTTOU = 27;
enum SIGUSR1 = 16;
enum SIGUSR2 = 17;
enum SIGURG = 21;
}
else version (Android)
{
version (X86)
{
enum SIGALRM = 14;
enum SIGBUS = 7;
enum SIGCHLD = 17;
enum SIGCONT = 18;
enum SIGHUP = 1;
enum SIGKILL = 9;
enum SIGPIPE = 13;
enum SIGQUIT = 3;
enum SIGSTOP = 19;
enum SIGTSTP = 20;
enum SIGTTIN = 21;
enum SIGTTOU = 22;
enum SIGUSR1 = 10;
enum SIGUSR2 = 12;
enum SIGURG = 23;
}
else
{
static assert(false, "Architecture not supported.");
}
}
else
{
static assert(false, "Unsupported platform");
}
version( FreeBSD )
{
struct sigaction_t
{
union
{
sigfn_t sa_handler;
sigactfn_t sa_sigaction;
}
int sa_flags;
sigset_t sa_mask;
}
}
else version (Solaris)
{
struct sigaction_t
{
int sa_flags;
union
{
sigfn_t sa_handler;
sigactfn_t sa_sigaction;
}
sigset_t sa_mask;
version (D_LP64) {}
else
int[2] sa_resv;
}
}
else version (Android)
{
version (X86)
{
struct sigaction_t
{
union
{
sigfn_t sa_handler;
sigactfn_t sa_sigaction;
}
sigset_t sa_mask;
c_ulong sa_flags;
void function() sa_restorer;
}
}
else
{
static assert(false, "Architecture not supported.");
}
}
else version( Posix )
{
struct sigaction_t
{
static if( true /* __USE_POSIX199309 */ )
{
union
{
sigfn_t sa_handler;
sigactfn_t sa_sigaction;
}
}
else
{
sigfn_t sa_handler;
}
sigset_t sa_mask;
int sa_flags;
version( OSX ) {} else {
void function() sa_restorer;
}
}
}
else
{
static assert(false, "Unsupported platform");
}
//
// C Extension (CX)
//
/*
SIG_HOLD
sigset_t
pid_t (defined in core.sys.types)
SIGABRT (defined in core.stdc.signal)
SIGFPE (defined in core.stdc.signal)
SIGILL (defined in core.stdc.signal)
SIGINT (defined in core.stdc.signal)
SIGSEGV (defined in core.stdc.signal)
SIGTERM (defined in core.stdc.signal)
SA_NOCLDSTOP (CX|XSI)
SIG_BLOCK
SIG_UNBLOCK
SIG_SETMASK
struct siginfo_t
{
int si_signo;
int si_code;
version( XSI )
{
int si_errno;
pid_t si_pid;
uid_t si_uid;
void* si_addr;
int si_status;
c_long si_band;
}
version( RTS )
{
sigval si_value;
}
}
SI_USER
SI_QUEUE
SI_TIMER
SI_ASYNCIO
SI_MESGQ
int kill(pid_t, int);
int sigaction(int, in sigaction_t*, sigaction_t*);
int sigaddset(sigset_t*, int);
int sigdelset(sigset_t*, int);
int sigemptyset(sigset_t*);
int sigfillset(sigset_t*);
int sigismember(in sigset_t*, int);
int sigpending(sigset_t*);
int sigprocmask(int, in sigset_t*, sigset_t*);
int sigsuspend(in sigset_t*);
int sigwait(in sigset_t*, int*);
*/
version( linux )
{
enum SIG_HOLD = cast(sigfn_t2) 1;
private enum _SIGSET_NWORDS = 1024 / (8 * c_ulong.sizeof);
struct sigset_t
{
c_ulong[_SIGSET_NWORDS] __val;
}
// pid_t (defined in core.sys.types)
//SIGABRT (defined in core.stdc.signal)
//SIGFPE (defined in core.stdc.signal)
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
//SIGSEGV (defined in core.stdc.signal)
//SIGTERM (defined in core.stdc.signal)
enum SA_NOCLDSTOP = 1; // (CX|XSI)
enum SIG_BLOCK = 0;
enum SIG_UNBLOCK = 1;
enum SIG_SETMASK = 2;
private enum __SI_MAX_SIZE = 128;
static if( false /* __WORDSIZE == 64 */ )
{
private enum __SI_PAD_SIZE = ((__SI_MAX_SIZE / int.sizeof) - 4);
}
else
{
private enum __SI_PAD_SIZE = ((__SI_MAX_SIZE / int.sizeof) - 3);
}
struct siginfo_t
{
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 _sifields_t
{
int _pad[__SI_PAD_SIZE];
// kill()
struct _kill_t
{
pid_t si_pid; // Sending process ID
uid_t si_uid; // Real user ID of sending process
} _kill_t _kill;
// POSIX.1b timers.
struct _timer_t
{
int si_tid; // Timer ID
int si_overrun; // Overrun count
sigval si_sigval; // Signal value
} _timer_t _timer;
// POSIX.1b signals
struct _rt_t
{
pid_t si_pid; // Sending process ID
uid_t si_uid; // Real user ID of sending process
sigval si_sigval; // Signal value
} _rt_t _rt;
// SIGCHLD
struct _sigchild_t
{
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;
} _sigchild_t _sigchld;
// SIGILL, SIGFPE, SIGSEGV, SIGBUS
struct _sigfault_t
{
void* si_addr; // Faulting insn/memory ref
} _sigfault_t _sigfault;
// SIGPOLL
struct _sigpoll_t
{
c_long si_band; // Band event for SIGPOLL
int si_fd;
} _sigpoll_t _sigpoll;
} _sifields_t _sifields;
nothrow @nogc:
@property ref pid_t si_pid() { return _sifields._kill.si_pid; }
@property ref uid_t si_uid() { return _sifields._kill.si_uid; }
@property ref void* si_addr() { return _sifields._sigfault.si_addr; }
@property ref int si_status() { return _sifields._sigchld.si_status; }
@property ref c_long si_band() { return _sifields._sigpoll.si_band; }
@property ref sigval si_value() { return _sifields._rt.si_sigval; }
}
enum
{
SI_ASYNCNL = -60,
SI_TKILL = -6,
SI_SIGIO,
SI_ASYNCIO,
SI_MESGQ,
SI_TIMER,
SI_QUEUE,
SI_USER,
SI_KERNEL = 0x80
}
int kill(pid_t, int);
int sigaction(int, in sigaction_t*, sigaction_t*);
int sigaddset(sigset_t*, int);
int sigdelset(sigset_t*, int);
int sigemptyset(sigset_t*);
int sigfillset(sigset_t*);
int sigismember(in sigset_t*, int);
int sigpending(sigset_t*);
int sigprocmask(int, in sigset_t*, sigset_t*);
int sigsuspend(in sigset_t*);
int sigwait(in sigset_t*, int*);
}
else version( OSX )
{
enum SIG_HOLD = cast(sigfn_t2) 5;
alias uint sigset_t;
// pid_t (defined in core.sys.types)
//SIGABRT (defined in core.stdc.signal)
//SIGFPE (defined in core.stdc.signal)
//SIGILL (defined in core.stdc.signal)
//SIGINT (defined in core.stdc.signal)
//SIGSEGV (defined in core.stdc.signal)
//SIGTERM (defined in core.stdc.signal)
enum SA_NOCLDSTOP = 8; // (CX|XSI)
enum SIG_BLOCK = 1;
enum SIG_UNBLOCK = 2;
enum SIG_SETMASK = 3;
struct siginfo_t
{
int si_signo;
int si_errno;
int si_code;
pid_t si_pid;
uid_t si_uid;
int si_status;
void* si_addr;
sigval si_value;
int si_band;
uint pad[7];
}
enum SI_USER = 0x10001;
enum SI_QUEUE = 0x10002;
enum SI_TIMER = 0x10003;
enum SI_ASYNCIO = 0x10004;
enum SI_MESGQ = 0x10005;
int kill(pid_t, int);
int sigaction(int, in sigaction_t*, sigaction_t*);
int sigaddset(sigset_t*, int);
int sigdelset(sigset_t*, int);
int sigemptyset(sigset_t*);
int sigfillset(sigset_t*);
int sigismember(in sigset_t*, int);
int sigpending(sigset_t*);
int sigprocmask(int, in sigset_t*, sigset_t*);
int sigsuspend(in sigset_t*);
int sigwait(in sigset_t*, int*);
}
else version( FreeBSD )
{
struct sigset_t
{
uint __bits[4];
}
struct siginfo_t
{
int si_signo;
int si_errno;
int si_code;
pid_t si_pid;
uid_t si_uid;
int si_status;
void* si_addr;
sigval si_value;
union __reason
{
struct __fault
{
int _trapno;
}
__fault _fault;
struct __timer
{
int _timerid;
int _overrun;
}
__timer _timer;
struct __mesgq
{
int _mqd;
}
__mesgq _mesgq;
struct __poll
{
c_long _band;
}
__poll _poll;
struct ___spare___
{
c_long __spare1__;
int[7] __spare2__;
}
___spare___ __spare__;
}
__reason _reason;
@property ref c_long si_band() { return _reason._poll._band; }
}
int kill(pid_t, int);
int sigaction(int, in sigaction_t*, sigaction_t*);
int sigaddset(sigset_t*, int);
int sigdelset(sigset_t*, int);
int sigemptyset(sigset_t *);
int sigfillset(sigset_t *);
int sigismember(in sigset_t *, int);
int sigpending(sigset_t *);
int sigprocmask(int, in sigset_t*, sigset_t*);
int sigsuspend(in sigset_t *);
int sigwait(in sigset_t*, int*);
}
else version (Solaris)
{
enum SIG_HOLD = cast(sigfn_t2)2;
struct sigset_t
{
uint __bits[4];
}
struct siginfo_t
{
int si_signo;
int si_code;
int si_errno;
version (D_LP64)
int si_pad;
union ___data
{
version (D_LP64)
int si_pad[(256 / int.sizeof) - 4];
else
int si_pad[(128 / int.sizeof) - 3];
struct ___proc
{
pid_t __pid;
union ___pdata
{
struct ___kill
{
uid_t __uid;
sigval __value;
}
___kill __kill;
struct ___cld
{
clock_t __utime;
int __status;
clock_t __stime;
}
___cld __cld;
}
___pdata __pdata;
ctid_t __ctid;
zoneid_t __zoneid;
}
___proc __proc;
struct ___fault
{
void* __addr;
int __trapno;
caddr_t __pc;
}
___fault __fault;
struct ___file
{
int __fd;
c_long __band;
}
___file __file;
struct ___prof
{
caddr_t __faddr;
timestruc_t __tstamp;
short __syscall;
char __nsysarg;
char __fault;
c_long __sysarg[8];
int __mstate[10];
}
___prof __prof;
struct ___rctl
{
int __entity;
}
___rctl __rctl;
}
___data __data;
}
int kill(pid_t, int);
int sigaction(int, in sigaction_t*, sigaction_t*);
int sigaddset(sigset_t*, int);
int sigdelset(sigset_t*, int);
int sigemptyset(sigset_t*);
int sigfillset(sigset_t*);
int sigismember(in sigset_t*, int);
int sigpending(sigset_t*);
int sigprocmask(int, in sigset_t*, sigset_t*);
int sigsuspend(in sigset_t*);
int sigwait(in sigset_t*, int*);
}
else version( Android )
{
public import core.sys.posix.time: timer_t;
private import core.stdc.string : memset;
version (X86)
{
alias c_ulong sigset_t;
enum int LONG_BIT = 32;
}
else
{
static assert(false, "Architecture not supported.");
}
enum SIG_BLOCK = 0;
enum SIG_UNBLOCK = 1;
enum SIG_SETMASK = 2;
private enum SI_MAX_SIZE = 128;
private enum SI_PAD_SIZE = ((SI_MAX_SIZE / int.sizeof) - 3);
struct siginfo_t
{
int si_signo;
int si_errno;
int si_code;
union _sifields_t
{
int[SI_PAD_SIZE] _pad;
struct _kill_t
{
pid_t _pid;
uid_t _uid;
} _kill_t _kill;
struct _timer_t
{
timer_t _tid;
int _overrun;
sigval _sigval;
int _sys_private;
} _timer_t _timer;
struct _rt_t
{
pid_t _pid;
uid_t _uid;
sigval _sigval;
} _rt_t _rt;
struct _sigchild_t
{
pid_t _pid;
uid_t _uid;
int _status;
clock_t _utime;
clock_t _stime;
} _sigchild_t _sigchld;
struct _sigfault_t
{
void* _addr;
} _sigfault_t _sigfault;
struct _sigpoll_t
{
c_long _band;
int _fd;
} _sigpoll_t _sigpoll;
} _sifields_t _sifields;
}
enum
{
SI_TKILL = -6,
SI_SIGIO,