mirror of
https://gitlab.com/freepascal.org/fpc/source.git
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df6a2dce00
+ codepage support for textrec/filerec and the above routines
* textrec/filerec now store the filename by default using widechar. It is
possible to switch back to ansichars using the FPC_ANSI_TEXTFILEREC define.
In that case, from now on the filename will always be stored in
DefaultFileSystemEncoding
* fixed potential buffer overflows and non-null-terminated file names in
textrec/filerec
+ dodirseparators(pwidechar), changed the dodirseparators(pchar/pwidechar)
parameters into var-parameters and gave those routines an extra parameter
that indicates whether the p(wide)char can be changed in place if
necessary or whether a copy must be made first (avoids us having to make
all strings always unique everywhere, because they might be changed on
some platforms via a pchar)
* do_open/do_erase/do_rename got extra boolean parameters indicating whether
the passed pchars point to data that can be freely changed (to pass on to
dodirseparators() if applicable)
* objects.pp: force assign(pchar) to be called, because
assign(array[0..255]) cannot choose between pchar and rawbytestring
versions (and removing the pchar version means that assign(pchar) will
be mapped to assign(shortstring) in {$h-})
* fixed up some routines in other units that depend on the format of
the textrec/filerec.name field
git-svn-id: branches/cpstrrtl@25137 -
146 lines
3.6 KiB
PHP
146 lines
3.6 KiB
PHP
{
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This file is part of the Free Pascal Run time library.
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Copyright (c) 1999-2000 by the Free Pascal development team
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See the File COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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{****************************************************************************
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subroutines for typed file handling
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****************************************************************************}
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{$ifdef FPC_HAS_FEATURE_WIDESTRINGS}
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Procedure Assign(out f:TypedFile;const Name: UnicodeString);
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{
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Assign Name to file f so it can be used with the file routines
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}
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Begin
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Assign(UnTypedFile(f),Name);
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End;
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{$endif FPC_HAS_FEATURE_WIDESTRINGS}
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{$ifdef FPC_HAS_FEATURE_ANSISTRINGS}
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Procedure Assign(out f:TypedFile;const Name: RawByteString);
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{
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Assign Name to file f so it can be used with the file routines
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}
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Begin
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Assign(UnTypedFile(f),Name);
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End;
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{$endif FPC_HAS_FEATURE_ANSISTRINGS}
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Procedure Assign(out f:TypedFile;const Name: ShortString);
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{
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Assign Name to file f so it can be used with the file routines
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}
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Begin
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Assign(UnTypedFile(f),Name);
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End;
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Procedure Assign(out f:TypedFile;const p:PAnsiChar);
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Begin
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Assign(UnTypedFile(f),p);
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end;
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Procedure Assign(out f:TypedFile;const c:AnsiChar);
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Begin
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Assign(UnTypedFile(f),c);
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end;
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Procedure fpc_reset_typed(var f : TypedFile;Size : Longint);[Public,IOCheck, Alias:'FPC_RESET_TYPED']; compilerproc;
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Begin
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Reset(UnTypedFile(f),Size);
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End;
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Procedure fpc_rewrite_typed(var f : TypedFile;Size : Longint);[Public,IOCheck, Alias:'FPC_REWRITE_TYPED']; compilerproc;
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Begin
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Rewrite(UnTypedFile(f),Size);
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End;
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{$ifdef FPC_HAS_FEATURE_RANDOM}
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{ this code is duplicated in the iso7185 unit }
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Procedure DoAssign(var t : TypedFile);
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Begin
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Assign(t,'fpc_'+HexStr(random(1000000000),8)+'.tmp');
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End;
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{$else FPC_HAS_FEATURE_RANDOM}
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{ this code is duplicated in the iso7185 unit }
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Procedure DoAssign(var t : TypedFile);
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const
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start : dword = 0;
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Begin
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Assign(t,'fpc_'+HexStr(start,8)+'.tmp');
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inc(start);
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End;
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{$endif FPC_HAS_FEATURE_RANDOM}
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Procedure fpc_reset_typed_iso(var f : TypedFile;Size : Longint);[Public,IOCheck, Alias:'FPC_RESET_TYPED_ISO']; compilerproc;
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Begin
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If InOutRes <> 0 then
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exit;
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{ create file name? }
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if FileRec(f).mode=0 then
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DoAssign(f);
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Reset(UnTypedFile(f),Size);
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End;
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Procedure fpc_rewrite_typed_iso(var f : TypedFile;Size : Longint);[Public,IOCheck, Alias:'FPC_REWRITE_TYPED_ISO']; compilerproc;
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Begin
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If InOutRes <> 0 then
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exit;
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{ create file name? }
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if FileRec(f).mode=0 then
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DoAssign(f);
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Rewrite(UnTypedFile(f),Size);
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End;
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Procedure fpc_typed_write(TypeSize : Longint;var f : TypedFile;const Buf);[IOCheck, Public, Alias :'FPC_TYPED_WRITE']; compilerproc;
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Begin
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If InOutRes <> 0 then
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exit;
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case fileRec(f).mode of
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fmOutPut,fmInOut:
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Do_Write(FileRec(f).Handle,@Buf,TypeSize);
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fmInput: inOutRes := 105;
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else inOutRes := 103;
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end;
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End;
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Procedure fpc_typed_read(TypeSize : Longint;var f : TypedFile;out Buf);[IOCheck, Public, Alias :'FPC_TYPED_READ']; compilerproc;
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var
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Result : Longint;
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Begin
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If InOutRes <> 0 then
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exit;
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case FileRec(f).mode of
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fmInput,fmInOut:
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begin
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Result:=Do_Read(FileRec(f).Handle,@Buf,TypeSize);
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If Result<TypeSize Then
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InOutRes:=100
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end;
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fmOutPut: inOutRes := 104
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else inOutRes := 103;
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end;
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End;
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