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{
This file is part of the Free Pascal run time library.
Copyright (c) 1999-2000 by Michael Van Canneyt
Linux specific part of pipe stream.
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.
**********************************************************************}
{$IFDEF FPC_DOTTEDUNITS}
Uses
UnixApi.Base, UnixApi.Unix, UnixApi.TermIO;
{$ELSE FPC_DOTTEDUNITS}
Uses
BaseUnix, Unix, TermIO;
{$ENDIF FPC_DOTTEDUNITS}
Function CreatePipeHandles (Var Inhandle,OutHandle : Longint; APipeBufferSize : Cardinal = 1024) : Boolean;
begin
Result := (AssignPipe (Inhandle,OutHandle)<>-1);
end;
Function TInputPipeStream.GetNumBytesAvailable: DWord;
begin
if fpioctl(Handle, FIONREAD, @Result)<0 then
Result := 0;
end;
function TInputPipeStream.GetPosition: Int64;
begin
Result:=FPos;
end;
procedure TInputPipeStream.InvalidSeek;
begin
Raise EPipeSeek.Create (ENoSeekMsg);
end;
procedure PipeClose (const FHandle: THandle); inline;
begin
FileClose(FHandle);
end;
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