{
    $Id: bunxtype.inc,v 1.6 2003/12/31 20:17:06 marco Exp $
    This file is part of the Free Pascal run time library.
    Copyright (c) 2001 by Free Pascal development team

    Types and structures for the BaseUnix unit.

    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.

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

{***********************************************************************}
{                         Base Unix Structures				}
{***********************************************************************}

{$i ptypes.inc}


CONST
//  SYS_NMLM 		     = 65;
    UTSNAME_LENGTH 	     = SYS_NMLM;
    UTSNAME_NODENAME_LENGTH  = UTSNAME_LENGTH;
    {$ifdef usedomain}
    UTSNAME_DOMAIN_LENGTH    = UTSNAME_LENGTH;
    {$endif}

   SIG_MAXSIG      = 128;	// highest signal version
   FD_MAXFDSET	   = 1024;
{$ifdef FPC_USE_LIBC}
   wordsinsigset   = 128 div 4;	 // words in sigset_t
{$else}
   wordsinsigset   = 4;		// words in sigset_t
{$endif}
   ln2bitsinword   = 5;         { 32bit : ln(32)/ln(2)=5 } 
   ln2bitmask	   = 1 shl ln2bitsinword - 1;

TYPE
   Blksize_t  = cuint;
   Blkcnt_t   = cuint;
   Ino64_t    = cint64;
   Off64_t    = cint64;

   TBlkSize   = BlkSize_t;
   PBlkSize   = ^BlkSize_t;
   TBlkCnt    = Blkcnt_t;
   PBlkCnt    = ^Blkcnt_t;
   TIno64     = Ino64_t;
   PIno64     = ^Ino64_t;
   TOff64     = Off64_t;
   POff64     = ^Off64_t;

   { system information services }
   UtsName   = Record
                Sysname : Array[0..UTSNAME_LENGTH -1] OF Char;   // Name of this OS
                Nodename: Array[0..UTSNAME_NODENAME_LENGTH-1] OF Char;   // Name of this network node.
                Release : Array[0..UTSNAME_LENGTH -1] OF Char;   // Release level.
                Version : Array[0..UTSNAME_LENGTH -1] OF Char;   // Version level.
                Machine : Array[0..UTSNAME_LENGTH -1] OF Char;   // Hardware type.
	       {$ifdef usedomain}
	        Domain  : array[0..UTSNAME_DOMAIN_LENGTH-1] of char;  // Linux addition "Domain"           
	       {$endif}
	       end;
  TUtsName   = UtsName;
  PUtsName   = TUtsName;


{ Definition of (kernel) stat type }
{ see kernel/include/asm-<cpu>/stat.h, include/linux/types.h and }
{ include /include/asm-<cpu>/posix-types.h                       }

{$i stat.inc}

  TStat	     = Stat;
  PStat	     = ^Stat;


{$ifdef notused} // 64-bit support needs some work still :-)
  { file characteristics services }
   stat64    = record 
        st_dev        : dev_t;             // inode's device
	pad1	      : cushort;
	{$ifdef 64bitfs}		   // ??
	__st_ino      : ino_t;
	{$else}
        st_ino        : ino_t;             // inode's number
	{$endif}
        st_mode       : mode_t;            // inode protection mode
        st_nlink      : nlink_t;           // number of hard links
        st_uid        : uid_t;             // user ID of the file's owner
        st_gid        : gid_t;             // group ID of the file's group
        st_rdev       : dev_t;             // device type
	pad2	      : cushort;
	{$ifdef 64bitfs}
        st_size       : off64_t;            // file size, in bytes
	{$else}
        st_size       : off_t;             // file size, in bytes
 	{$endif}
        st_blksize    : blksize_t;           // optimal blocksize for I/O
	{$ifdef 64bitfs}
        st_blocks     : blkcnt64_t;            // blocks allocated for file
	{$else}
 	st_blocks     : blkcnt_t;            // blocks allocated for file
	{$endif}
        st_atime      : time_t;            // time of last access
	unused1	      : culong;
        st_mtime      : time_t;            // time of last data modification
	unused2	      : culong;
        st_ctime      : time_t;            // time of last file status change
	unused3	      : culong;
	{$ifdef 64bitfs}
	st_ino	      : ino64_t
	{$else}
	unused4	      : culong;	
        unused5	      : culong;
	{$endif}
   end;
{$endif}

  { directory services }
  
  Dirent     = packed record
	       {$ifndef 64bitfs}
        	d_fileno      : ino_t;                          // file number of entry
        	d_off         : off_t;     
		{$else}
        	d_fileno      : ino64_t;                        // file number of entry
        	d_off         : off64_t;            
	       {$endif}
		d_reclen      : cushort;                        // length of string in d_name
	       {$ifdef Uselibc}	// Libc different from kernel record!
        	d_type        : cuchar;                         // file type, see below
	       {$endif}
        	d_name        : array[0..(255 + 1)-1] of char;  // name must be no longer than this
   	       end;
  TDirent    = Dirent;
  pDirent    = ^Dirent;

{$ifdef oldreaddir}
	   { Still old one. This is a userland struct}

   Dir       = packed record
                dd_fd     : integer;
                dd_loc    : longint;
                dd_size   : integer;
                dd_buf    : pdirent;
                {The following are used in libc, but NOT in the linux kernel sources ??}
                dd_nextoff: longint;
                dd_max : integer; {size of buf. Irrelevant, as buf is of type dirent}
                dd_lock   : pointer;
               end;
{$else}
	// new libc one. NOTE that off_t must be real, so 64-bit ifdef
	// 64bitsfs
   Dir       = Record	// packing doesn't matter. This is a userland struct.
	        fd  	: cint;
	        data	: pchar;
	        allocation: size_t;
	        _size     : size_t;
	        offset    : size_t;
	        filepos   : off_t;
	        end;
{$endif}   

   TDir	     = Dir;
   pDir      = ^Dir;


   UTimBuf   = Record
	         actime  : time_t;
	         modtime : time_t;
	        end;

   TUtimBuf  = UtimBuf;   
   pUtimBuf  = ^UtimBuf;

   FLock     = Record
		l_type	: cshort;	{ lock type: read/write, etc. }
		l_whence: cshort;	{ type of l_start }
		{$ifdef 64bitfs}
		l_start : off64_t;	{ starting offset }
		l_len	: off64_t;	{ len = 0 means until end of file }
		{$else}
		l_start : off_t;	{ starting offset }
		l_len	: off_t;	{ len = 0 means until end of file }
		{$endif}
		l_pid 	: pid_t;	{ lock owner }
	       End;

   tms       = packed Record
	 	tms_utime  : clock_t;	{ User CPU time }
	 	tms_stime  : clock_t;	{ System CPU time }
	 	tms_cutime : clock_t;	{ User CPU time of terminated child procs }
	 	tms_cstime : clock_t;	{ System CPU time of terminated child procs }
	       end;
   TTms      = tms;
   PTms	     = ^tms;

 TFDSet    = ARRAY[0..(FD_MAXFDSET div 32)-1] of Cardinal;
 pFDSet    = ^TFDSet;

{***********************************************************************}
{                  POSIX CONSTANT ROUTINE DEFINITIONS                   }
{***********************************************************************}
CONST
    { access routine - these maybe OR'ed together }
    F_OK      =          0;        { test for existence of file }
    R_OK      =          4;        { test for read permission on file }
    W_OK      =          2;        { test for write permission on file }
    X_OK      =          1;        { test for execute or search permission }
    { seek routine }
    SEEK_SET  =          0;        { seek from beginning of file }
    SEEK_CUR  =          1;        { seek from current position  }
    SEEK_END  =          2;        { seek from end of file       }
    { open routine                                 }
    { File access modes for `open' and `fcntl'.    }
    O_RDONLY  =          0;        { Open read-only.  }
    O_WRONLY  =          1;        { Open write-only. }
    O_RDWR    =          2;        { Open read/write. }
    { Bits OR'd into the second argument to open.  }
    O_CREAT   =        $40;        { Create file if it doesn't exist.  }
    O_EXCL    =        $80;        { Fail if file already exists.      }
    O_TRUNC   =       $200;        { Truncate file to zero length.     }
    O_NOCTTY  =       $100;        { Don't assign a controlling terminal. }
    { File status flags for `open' and `fcntl'.  }
    O_APPEND  =       $400;        { Writes append to the file.        }
    O_NONBLOCK=       $800;        { Non-blocking I/O.                 }

    { mode_t possible values                                 }
    S_IRUSR =  %0100000000;     { Read permission for owner   }
    S_IWUSR =  %0010000000;     { Write permission for owner  }
    S_IXUSR =  %0001000000;     { Exec  permission for owner  }
    S_IRGRP =  %0000100000;     { Read permission for group   }
    S_IWGRP =  %0000010000;     { Write permission for group  }
    S_IXGRP =  %0000001000;     { Exec permission for group   }
    S_IROTH =  %0000000100;     { Read permission for world   }
    S_IWOTH =  %0000000010;     { Write permission for world  }
    S_IXOTH =  %0000000001;     { Exec permission for world   }

    { Used for waitpid }
    WNOHANG   =          1;     { don't block waiting               }
    WUNTRACED =          2;     { report status of stopped children }

const

  { For File control mechanism }
  F_GetFd  = 1;
  F_SetFd  = 2;
  F_GetFl  = 3;
  F_SetFl  = 4;
  F_GetLk  = 5;
  F_SetLk  = 6;
  F_SetLkW = 7;
  F_SetOwn = 8;
  F_GetOwn = 9;

    {*************************************************************************}
    {                               SIGNALS                                   }
    {*************************************************************************}

{$i signal.inc}

// function geterrno:longint;
// procedure seterrno(i:longint);

{
  $Log: bunxtype.inc,v $
  Revision 1.6  2003/12/31 20:17:06  marco
   * sigset size adaption for FPC_USE_LIBC

  Revision 1.5  2003/12/02 00:04:34  sg
  * Fixed ln2bitmask

  Revision 1.4  2003/11/19 10:56:15  marco
   * some constants moved from System

  Revision 1.3  2003/09/14 20:15:01  marco
   * Unix reform stage two. Remove all calls from Unix that exist in Baseunix.

  Revision 1.2  2003/05/15 22:50:50  jonas
    * the stat type is processor-dependent
    * the dev_t tpye is processor dependent. Don't use it in the stat type
      however, as that one is also used at a time where dev_t is already
      defined as qword

  Revision 1.1  2002/12/18 16:43:26  marco
   * new unix rtl, linux part.....

  Revision 1.1  2002/11/12 14:37:59  marco
   * Parts of new unix rtl

}
