fpc/rtl/linux/signal.inc

{
    $Id$
    This file is part of the Free Pascal run time library.
    Copyright (c) 1999-2000 by Jonas Maebe,
    member of the Free Pascal development team.

    See the file COPYING.FPC, included in this distribution,
    for details about the copyright.

    This program 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.

 **********************************************************************}

{$packrecords C}

{********************
      Signal
********************}

Const
  { For sending a signal }
{$ifdef SPARC}
  SA_SIGINFO   = $200;
  SA_NOMASK    = $20;

  SIG_BLOCK   = 1;
  SIG_UNBLOCK = 2;
  SIG_SETMASK = 4;
{$else SPARC}
  SA_NOCLDSTOP = 1;
  SA_NOCLDWAIT = 2;
  SA_SIGINFO   = 4;
  SA_SHIRQ     = $04000000;
  SA_STACK     = $08000000;
  SA_RESTART   = $10000000;
  SA_INTERRUPT = $20000000;
  SA_NOMASK    = $40000000;
  SA_ONESHOT   = $80000000;

  SIG_BLOCK   = 0;
  SIG_UNBLOCK = 1;
  SIG_SETMASK = 2;
{$endif SPARC}

  SIG_DFL = 0 ;
  SIG_IGN = 1 ;
  SIG_ERR = -1 ;

{$ifdef cpusparc}
  SIGHUP     = 1;
  SIGINT     = 2;
  SIGQUIT    = 3;
  SIGILL     = 4;
  SIGTRAP    = 5;
  SIGABRT    = 6;
  SIGIOT     = 6;
  SIGEMT     = 7;
  SIGFPE     = 8;
  SIGKILL    = 9;
  SIGBUS     = 10;
  SIGSEGV    = 11;
  SIGSYS     = 12;
  SIGPIPE    = 13;
  SIGALRM    = 14;
  SIGTERM    = 15;
  SIGURG     = 16;
  SIGSTOP    = 17;
  SIGTSTP    = 18;
  SIGCONT    = 19;
  SIGCHLD    = 20;
  SIGTTIN    = 21;
  SIGTTOU    = 22;
  SIGIO      = 23;
  SIGPOLL    = SIGIO;
  SIGXCPU    = 24;
  SIGXFSZ    = 25;
  SIGVTALRM  = 26;
  SIGPROF    = 27;
  SIGWINCH   = 28;
  SIGLOST    = 29;
  SIGPWR     = SIGLOST;
  SIGUSR1    = 30;
  SIGUSR2    = 31;
{$else cpusparc}
  SIGHUP     = 1;
  SIGINT     = 2;
  SIGQUIT    = 3;
  SIGILL     = 4;
  SIGTRAP    = 5;
  SIGABRT    = 6;
  SIGIOT     = 6;
  SIGBUS     = 7;
  SIGFPE     = 8;
  SIGKILL    = 9;
  SIGUSR1    = 10;
  SIGSEGV    = 11;
  SIGUSR2    = 12;
  SIGPIPE    = 13;
  SIGALRM    = 14;
  SIGTerm    = 15;
  SIGSTKFLT  = 16;
  SIGCHLD    = 17;
  SIGCONT    = 18;
  SIGSTOP    = 19;
  SIGTSTP    = 20;
  SIGTTIN    = 21;
  SIGTTOU    = 22;
  SIGURG     = 23;
  SIGXCPU    = 24;
  SIGXFSZ    = 25;
  SIGVTALRM  = 26;
  SIGPROF    = 27;
  SIGWINCH   = 28;
  SIGIO      = 29;
  SIGPOLL    = SIGIO;
  SIGPWR     = 30;
  SIGUNUSED  = 31;
{$endif cpusparc}


const
  SI_PAD_SIZE   = ((128 div sizeof(longint)) - 3);


type
  SigSet  =  array[0..wordsinsigset-1] of cint;
  sigset_t= SigSet;
  PSigSet = ^SigSet;
  psigset_t=psigset;
  TSigSet = SigSet;

  psiginfo = ^tsiginfo;
  tsiginfo = record
       si_signo : longint;
       si_errno : longint;
       si_code : longint;
       _sifields : record
           case longint of
              0 : ( _pad : array[0..(SI_PAD_SIZE)-1] of longint );
              1 : ( _kill : record
                   _pid : pid_t;
                   _uid : uid_t;
                end );
              2 : ( _timer : record
                   _timer1 : dword;
                   _timer2 : dword;
                end );
              3 : ( _rt : record
                   _pid : pid_t;
                   _uid : uid_t;
                   _sigval : pointer;
                end );
              4 : ( _sigchld : record
                   _pid : pid_t;
                   _uid : uid_t;
                   _status : longint;
                   _utime : clock_t;
                   _stime : clock_t;
                end );
              5 : ( _sigfault : record
                   _addr : pointer;
                end );
              6 : ( _sigpoll : record
                   _band : longint;
                   _fd : longint;
                end );
           end;
    end;

{ CPU dependent TSigContext }
{$i sighndh.inc}

type
  SignalHandler   = Procedure(Sig : Longint);cdecl;
  PSignalHandler  = ^SignalHandler;
  SignalRestorer  = Procedure;cdecl;
  PSignalRestorer = ^SignalRestorer;
  SigActionHandler = procedure(sig : longint; SigInfo: PSigInfo; SigContext: PSigContext);cdecl;

{$ifdef CPUARM}
{$define NEWSIGNAL}
{$endif CPUARM}

{$ifdef CPUx86_64}
{$define NEWSIGNAL}
{$endif CPUx86_64}

  SigActionRec = packed record  // this is temporary for the migration
    sa_handler : SigActionHandler;
   {$ifdef NEWSIGNAL}
    Sa_Flags    : cuint;
    Sa_restorer : SignalRestorer; { Obsolete - Don't use }
    Sa_Mask     : SigSet;
   {$else NEWSIGNAL}
    Sa_Mask     : SigSet;
    Sa_Flags    : Longint;
    Sa_restorer : SignalRestorer; { Obsolete - Don't use }
   {$endif NEWSIGNAL}
  end;
  TSigActionRec = SigActionRec;
  PSigActionRec = ^SigActionRec;

{
  $Log$
  Revision 1.26  2005-02-14 17:13:30  peter
    * truncate log

  Revision 1.25  2005/02/05 22:53:43  peter
    * use typecasted sigactionhandler, needed for arm

  Revision 1.24  2005/02/05 22:45:54  peter
    * sigactionhandler fixed for arm

  Revision 1.23  2005/01/30 18:01:15  peter
    * signal cleanup for linux
    * sigactionhandler instead of tsigaction for bsds
    * sigcontext moved to cpu dir

}