fpc/rtl/inc/typefile.inc

104 lines
2.7 KiB
PHP

{
$Id$
This file is part of the Free Pascal Run time library.
Copyright (c) 1999-2000 by 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.
**********************************************************************}
{****************************************************************************
subroutines for typed file handling
****************************************************************************}
Procedure assign(var f:TypedFile;const Name:string);
{
Assign Name to file f so it can be used with the file routines
}
Begin
FillChar(f,SizeOF(FileRec),0);
FileRec(f).Handle:=UnusedHandle;
FileRec(f).mode:=fmClosed;
Move(Name[1],FileRec(f).Name,Length(Name));
End;
Procedure assign(var f:TypedFile;p:pchar);
{
Assign Name to file f so it can be used with the file routines
}
begin
Assign(f,StrPas(p));
end;
Procedure assign(var f:TypedFile;c:char);
{
Assign Name to file f so it can be used with the file routines
}
begin
Assign(f,string(c));
end;
Procedure fpc_reset_typed(var f : TypedFile;Size : Longint);[Public,IOCheck, Alias:'FPC_RESET_TYPED']; {$ifdef hascompilerproc} compilerproc; {$endif}
Begin
If InOutRes <> 0 then
exit;
Reset(UnTypedFile(f),Size);
End;
Procedure fpc_rewrite_typed(var f : TypedFile;Size : Longint);[Public,IOCheck, Alias:'FPC_REWRITE_TYPED']; {$ifdef hascompilerproc} compilerproc; {$endif}
Begin
If InOutRes <> 0 then
exit;
Rewrite(UnTypedFile(f),Size);
End;
Procedure fpc_typed_write(TypeSize : Longint;var f : TypedFile;const Buf);[IOCheck, Public, Alias :'FPC_TYPED_WRITE']; {$ifdef hascompilerproc} compilerproc; {$endif}
Begin
If InOutRes <> 0 then
exit;
case fileRec(f).mode of
fmOutPut,fmInOut:
Do_Write(FileRec(f).Handle,@Buf,TypeSize);
fmInput: inOutRes := 105;
else inOutRes := 103;
end;
End;
Procedure fpc_typed_read(TypeSize : Longint;var f : TypedFile;var Buf);[IOCheck, Public, Alias :'FPC_TYPED_READ']; {$ifdef hascompilerproc} compilerproc; {$endif}
var
Result : Longint;
Begin
If InOutRes <> 0 then
exit;
case FileRec(f).mode of
fmInput,fmInOut:
begin
Result:=Do_Read(FileRec(f).Handle,@Buf,TypeSize);
If Result<TypeSize Then
InOutRes:=100
end;
fmOutPut: inOutRes := 104
else inOutRes := 103;
end;
End;
{
$Log$
Revision 1.5 2004-04-22 21:10:56 peter
* do_read/do_write addr argument changed to pointer
Revision 1.4 2002/09/07 15:07:46 peter
* old logs removed and tabs fixed
}