mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-11-04 13:39:39 +01:00
110 lines
2.6 KiB
PHP
110 lines
2.6 KiB
PHP
{ For linux we 'steal' the following from system unit, this way
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we don't need to change the system unit interface. }
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Var errno : Longint;
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{$i sysnr.inc}
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{$i errno.inc}
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{$i sysconst.inc}
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{$i systypes.inc}
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{$i signal.inc}
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{$i syscalls.inc}
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FUNCTION FileOpen (Var FileName: AsciiZ; Mode: Word): THandle;
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Var LinuxMode : longint;
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BEGIN
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LinuxMode:=0;
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if Mode=stCreate then
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Begin
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LinuxMode:=Open_Creat;
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LinuxMode:=LinuxMode or Open_RdWr;
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end
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else
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Begin
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Case (Mode and 3) of
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0 : LinuxMode:=LinuxMode or Open_RdOnly;
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1 : LinuxMode:=LinuxMode or Open_WrOnly;
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2 : LinuxMode:=LinuxMode or Open_RdWr;
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end;
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end;
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FileOpen:=SYS_Open (pchar(@FileName[0]),LinuxMode,438 {666 octal});
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If FileOpen=-1 then FileOpen:=0;
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DosStreamError:=Errno;
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END;
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FUNCTION FileRead (Handle: THandle; Var BufferArea; BufferLength: Sw_Word;
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Var BytesMoved: Sw_Word): Word;
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BEGIN
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BytesMoved:=Sys_read (Handle,Pchar(@BufferArea),BufferLength);
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DosStreamError:=Errno;
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FileRead:=Errno;
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END;
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FUNCTION FileWrite (Handle: THandle; Var BufferArea; BufferLength: Sw_Word;
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Var BytesMoved: Sw_Word): Word;
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BEGIN
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BytesMoved:=Sys_Write (Handle,Pchar(@BufferArea),BufferLength);
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FileWrite:=Errno;
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DosStreamError:=Errno;
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END;
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FUNCTION SetFilePos (Handle: THandle; Pos: LongInt; MoveType: Word;
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VAR NewPos: LongInt): Word;
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BEGIN
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NewPos:=Sys_LSeek (Handle,Pos,MoveType);
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SetFilePos:=Errno;
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END;
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FUNCTION FileClose (Handle: THandle): Word;
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BEGIN
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Sys_Close (Handle);
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DosStreamError:=Errno;
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FileClose := Errno;
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END;
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FUNCTION SetFileSize (Handle: THandle; FileSize: LongInt): Word;
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{$IFNDEF BSD}
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Var sr : syscallregs;
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{$ENDIF}
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{$IFDEF DOSSETFILE1}
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Actual, Buf: LongInt;
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{$ENDIF}
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BEGIN
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{$IFDEF BSD}
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Do_Syscall(Syscall_Nr_ftruncate,handle,filesize,0); {0 -> offset =64 bit}
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{$ELSE}
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sr.reg2:=Handle;
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sr.reg3:=FileSize;
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Syscall(syscall_nr_fTruncate,sr);
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{$ENDIF}
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If Errno=0 then
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SetFileSize:=0
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else
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SetFileSize:=103;
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{$IFDEF DOSSETFILE1}
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If (Actual = FileSize) Then Begin { No position error }
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Actual := FileWrite(Handle, Pointer(@Buf), 0,Actual); { Truncate the file }
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If (Actual <> -1) Then SetFileSize := 0 Else { No truncate error }
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SetFileSize := 103; { File truncate error }
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End Else SetFileSize := 103; { File truncate error }
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{$ENDIF}
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END;
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{
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$Log$
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Revision 1.2 2000-09-18 13:14:51 marco
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* Global Linux +bsd to (rtl/freebsd rtl/unix rtl/linux structure)
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Revision 1.3 2000/09/11 14:05:31 marco
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* FreeBSD support and removed old signalhandling
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Revision 1.2 2000/07/13 11:33:49 michael
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+ removed logs
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}
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