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120 lines
2.6 KiB
PHP
120 lines
2.6 KiB
PHP
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2000 by Marco van de Voort
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member of 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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{$ifndef HAS_LIBC_PIPING}
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Function PClose(Var F:file) : cint;
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var
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pl : ^cint;
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res : cint;
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pid: cint;
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begin
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fpclose(filerec(F).Handle);
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{ closed our side, Now wait for the other - this appears to be needed ?? }
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pl:=@(filerec(f).userdata[2]);
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{ avoid alignment error on sparc }
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move(pl^,pid,sizeof(pid));
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fpwaitpid(pid,@res,0);
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pclose:=res shr 8;
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end;
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Function PClose(Var F:text) :cint;
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var
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pl : ^cint;
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res : cint;
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pid: cint;
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begin
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fpclose(Textrec(F).Handle);
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{ closed our side, Now wait for the other - this appears to be needed ?? }
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pl:=@(textrec(f).userdata[2]);
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{ avoid alignment error on sparc }
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move(pl^,pid,sizeof(pid));
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fpwaitpid(pid,@res,0);
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pclose:=res shr 8;
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end;
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{$ENDIF}
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Function AssignPipe(var pipe_in,pipe_out:cint):cint; [public, alias : 'FPC_SYSC_ASSIGNPIPE'];
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{
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Sets up a pair of file variables, which act as a pipe. The first one can
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be read from, the second one can be written to.
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If the operation was unsuccesful, linuxerror is set.
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}
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var
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ret : longint;
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errn : cint;
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{$ifdef FPC_USE_LIBC}
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fdis : array[0..1] of cint;
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{$endif}
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begin
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{$ifndef FPC_USE_LIBC}
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ret:=intAssignPipe(pipe_in,pipe_out,errn);
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if ret=-1 Then
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fpseterrno(errn);
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{$ELSE}
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fdis[0]:=pipe_in;
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fdis[1]:=pipe_out;
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ret:=pipe(fdis);
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pipe_in:=fdis[0];
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pipe_out:=fdis[1];
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{$ENDIF}
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AssignPipe:=ret;
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end;
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Function fpFlock (fd,mode : longint) : cint;
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{
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var
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fl : flock;
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cmd : cint;
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}
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begin
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{
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{ initialize the flock struct to set lock on entire file }
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fillchar(fl,sizeof(fl),0);
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{ In non-blocking lock, use F_SETLK for cmd, F_SETLKW otherwise }
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if (operation and LOCK_NB)<>0 then
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begin
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cmd:=F_SETLK;
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{ turn off this bit }
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operation:=operation and not(LOCK_NB);
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end
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else
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cmd:=F_SETLKW;
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case operation of
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LOCK_UN:
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fl.l_type:=fl.l_type or F_UNLCK;
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LOCK_SH:
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fl.l_type:=fl.l_type or F_RDLCK;
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LOCK_EX:
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fl.l_type:=fl.l_type or F_WRLCK;
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else
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begin
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errno:=EINVAL;
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result:=-1
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exit;
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end;
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end;
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result:=fpFcntl(fd,cmd,@fl);
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if (result=-1) and (errno=EACCES)
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errno:=EWOULDBLOCK;
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}
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end;
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