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5baca0cfd3
* fix shmget to use size_t as per manpage * directly use external, don't depend on ipccdecl.inc (may be removed if confirmed) git-svn-id: trunk@7973 -
119 lines
2.9 KiB
PHP
119 lines
2.9 KiB
PHP
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2001 by Free Pascal development team
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Linux IPC implemented with ipccall
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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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{ The following definitions come from linux/ipc.h }
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Function ftok (Path : pchar; ID : cint) : TKey;
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Var Info : TStat;
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begin
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If fpstat(path,info)<0 then
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ftok:=-1
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else
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begin
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ftok:= (info.st_ino and $FFFF) or ((info.st_dev and $ff) shl 16) or (byte(ID) shl 24)
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end;
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end;
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Const
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CALL_SEMOP = 1;
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CALL_SEMGET = 2;
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CALL_SEMCTL = 3;
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CALL_MSGSND = 11;
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CALL_MSGRCV = 12;
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CALL_MSGGET = 13;
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CALL_MSGCTL = 14;
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CALL_SHMAT = 21;
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CALL_SHMDT = 22;
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CALL_SHMGET = 23;
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CALL_SHMCTL = 24;
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{ generic call that handles all IPC calls }
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function ipccall(Call,First,Second,Third : cint; P : Pointer) : ptrint;
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begin
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ipccall:=do_syscall(syscall_nr_ipc,call,first,second,third,ptrint(P));
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// ipcerror:=fpgetErrno;
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end;
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function shmget(key: Tkey; size:size_t; flag:cint):cint;
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begin
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shmget:=ipccall (CALL_SHMGET,key,size,flag,nil);
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end;
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Function shmat (shmid:cint; shmaddr:pointer; shmflg:cint):pointer;
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Var raddr : pchar;
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error : ptrint;
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begin
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error:=ipccall(CALL_SHMAT,shmid,shmflg,cint(@raddr),shmaddr);
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If Error<0 then
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shmat:=pchar(error)
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else
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shmat:=raddr;
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end;
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function shmdt (shmaddr:pointer): cint;
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begin
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shmdt:=ipccall(CALL_SHMDT,0,0,0,shmaddr);
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end;
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function shmctl(shmid:cint; cmd:cint; buf: pshmid_ds): cint;
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begin
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shmctl:=ipccall(CALL_SHMCTL,shmid,cmd,0,buf);
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end;
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function msgget(key:Tkey; msgflg:cint):cint;
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begin
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msgget:=ipccall(CALL_MSGGET,key,msgflg,0,Nil);
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end;
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function msgsnd(msqid:cint; msgp: PMSGBuf; msgsz: size_t; msgflg:cint):cint;
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begin
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msgsnd:=ipccall(Call_MSGSND,msqid,msgsz,msgflg,msgp);
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end;
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function msgrcv(msqid:cint; msgp: PMSGBuf; msgsz: size_t; msgtyp:cint; msgflg:cint):cint;
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Type
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TIPC_Kludge = Record
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msgp : pmsgbuf;
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msgtyp : cint;
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end;
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Var
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tmp : TIPC_Kludge;
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begin
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tmp.msgp := msgp;
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tmp.msgtyp := msgtyp;
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msgrcv:=ipccall(CALL_MSGRCV,msqid,msgsz,msgflg,@tmp);
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end;
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Function msgctl(msqid:cint; cmd: cint; buf: PMSQid_ds): cint;
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begin
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msgctl:=ipccall(CALL_MSGCTL,msqid,cmd,0,buf);
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end;
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Function semget(key:Tkey; nsems:cint; semflg:cint): cint;
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begin
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semget:=ipccall (CALL_SEMGET,key,nsems,semflg,Nil);
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end;
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Function semop(semid:cint; sops: psembuf; nsops:cuint): cint;
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begin
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semop:=ipccall (CALL_SEMOP,semid,cint(nsops),0,Pointer(sops));
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end;
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Function semctl(semid:cint; semnum:cint; cmd:cint; var arg: tsemun): cint;
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begin
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semctl:=ipccall(CALL_SEMCTL,semid,semnum,cmd,@arg);
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end;
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