mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-04-11 10:38:16 +02:00
143 lines
3.3 KiB
PHP
143 lines
3.3 KiB
PHP
{
|
|
This file is part of the Free Pascal run time library.
|
|
Copyright (c) 2000 by Marco van de Voort
|
|
member of 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.
|
|
|
|
**********************************************************************}
|
|
|
|
Function PClose(Var F:file) : cint;
|
|
var
|
|
pl : ^cint;
|
|
res: cint;
|
|
begin
|
|
repeat
|
|
res:=fpclose(filerec(F).Handle);
|
|
until (res<>-1) or (fpgeterrno<>ESysEINTR);
|
|
{ closed our side, Now wait for the other - this appears to be needed ?? }
|
|
pl:=@(filerec(f).userdata[2]);
|
|
pclose := WaitProcess(pl^);
|
|
end;
|
|
|
|
Function PClose(Var F:text) :cint;
|
|
var
|
|
pl : ^cint;
|
|
res : cint;
|
|
begin
|
|
repeat
|
|
res:=fpclose(Textrec(F).Handle);
|
|
until (res<>-1) or (fpgeterrno<>ESysEINTR);
|
|
{ closed our side, Now wait for the other - this appears to be needed ?? }
|
|
pl:=@(textrec(f).userdata[2]);
|
|
pclose:= WaitProcess(pl^);
|
|
end;
|
|
|
|
|
|
// can't have oldfpccall here, linux doesn't need it.
|
|
Function AssignPipe(var pipe_in,pipe_out:cint):cint; [public, alias : 'FPC_SYSC_ASSIGNPIPE'];
|
|
{
|
|
Sets up a pair of file variables, which act as a pipe. The first one can
|
|
be read from, the second one can be written to.
|
|
If the operation was unsuccesful, linuxerror is set.
|
|
}
|
|
var
|
|
ret : longint;
|
|
fdis : array[0..1] of cint;
|
|
begin
|
|
fdis[0]:=pipe_in;
|
|
fdis[1]:=pipe_out;
|
|
ret:=pipe(fdis);
|
|
pipe_in:=fdis[0];
|
|
pipe_out:=fdis[1];
|
|
AssignPipe:=ret;
|
|
end;
|
|
|
|
{$define FPC_HAS_GETTIMEZONEFILE}
|
|
|
|
function GetTimezoneFile:shortstring;
|
|
var
|
|
tzenv : PAnsiChar;
|
|
l: longint;
|
|
s: shortstring;
|
|
ft : text;
|
|
begin
|
|
GetTimeZoneFile:='';
|
|
{ the TZ variable holds the name of the timezone (possibly followed by a
|
|
comma and rules), and the timezone files themselves are stored in
|
|
/usr/share/lib/zoneinfo }
|
|
tzenv:=fpgetenv('TZ');
|
|
if assigned(tzenv) then
|
|
begin
|
|
s:=strpas(tzenv);
|
|
l:=pos(',',s);
|
|
if l<>0 then
|
|
s:=copy(s,1,l-1);
|
|
GetTimeZoneFile:='/usr/share/lib/zoneinfo/'+s;
|
|
end
|
|
else
|
|
exit;
|
|
assign(ft,GetTimeZoneFile);
|
|
{$push}
|
|
{$I-}
|
|
reset(ft);
|
|
if IOResult=0 then
|
|
close(ft)
|
|
else
|
|
GetTimeZoneFile:='';
|
|
{$pop}
|
|
end;
|
|
|
|
|
|
{ should probably be defined in ostypes.inc for all OSes }
|
|
const
|
|
F_RDLCK = 01; (* Read lock *)
|
|
F_WRLCK = 02; (* Write lock *)
|
|
F_UNLCK = 03; (* Remove lock(s) *)
|
|
|
|
|
|
Function fpFlock (fd,mode : longint) : cint;
|
|
var
|
|
fl : flock;
|
|
cmd : cint;
|
|
begin
|
|
{ initialize the flock struct to set lock on entire file }
|
|
fillchar(fl,sizeof(fl),0);
|
|
|
|
{ In non-blocking lock, use F_SETLK for cmd, F_SETLKW otherwise }
|
|
if (mode and LOCK_NB)<>0 then
|
|
begin
|
|
cmd:=F_SETLK;
|
|
{ turn off this bit }
|
|
mode:=mode and not(LOCK_NB);
|
|
end
|
|
else
|
|
cmd:=F_SETLKW;
|
|
|
|
case mode of
|
|
LOCK_UN:
|
|
fl.l_type:=fl.l_type or F_UNLCK;
|
|
LOCK_SH:
|
|
fl.l_type:=fl.l_type or F_RDLCK;
|
|
LOCK_EX:
|
|
fl.l_type:=fl.l_type or F_WRLCK;
|
|
else
|
|
begin
|
|
errno:=ESysEINVAL;
|
|
fpFlock:=-1;
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
fpFlock:=fpFcntl(fd,cmd,fl);
|
|
|
|
if (fpFlock=-1) and (errno=ESysEACCES) then
|
|
errno:=ESysEWOULDBLOCK;
|
|
end;
|
|
|