| 0,0 → 1,74 |
|---|
| MODULE unix; (* connect to unix host *) |
| IMPORT SYSTEM, _unix; |
| (* provide some Oberon friendly POSIX without need for SYSTEM *) |
| |
| CONST RTLD_LAZY* = 1; |
| O_RDONLY* = 0; |
| O_NEWFILE* = 0C2H; (* O_RDWR | O_CREAT | O_EXCL *) |
| (* O_RDONLY=0, O_WRONLY=1, O_RDWR=2, O_CREAT=0x40, O_EXCL=0x80, O_TRUNC=0x200 *) |
| FD_SETSIZE* = 1024; (* fd for select() must be smaller than FD_SETSIZE *) |
| BIT_DEPTH* = _unix.BIT_DEPTH; |
| LEN_FD_SET = FD_SETSIZE DIV BIT_DEPTH; |
| |
| TYPE |
| timespec* = RECORD |
| tv_sec*, tv_usec* :INTEGER |
| END; |
| fd_set* = POINTER TO RECORD (* for select() *) |
| bits* :ARRAY LEN_FD_SET OF SET (* 1024 bits *) |
| END; |
| |
| VAR |
| dlopen* :PROCEDURE [linux] (name, flags :INTEGER) :INTEGER; |
| dlsym* :PROCEDURE [linux] (p, name :INTEGER) :INTEGER; |
| dlclose* :PROCEDURE [linux] (p :INTEGER) :INTEGER; |
| close* :PROCEDURE [linux] (fd :INTEGER) :INTEGER; |
| exit* :PROCEDURE [linux] (n :INTEGER); |
| malloc* :PROCEDURE [linux] (sz :INTEGER) :INTEGER; |
| |
| PROCEDURE open* (path :ARRAY OF CHAR; flag, perm :INTEGER) :INTEGER; |
| BEGIN RETURN _unix._open (SYSTEM.ADR(path[0]), flag, perm) END open; |
| |
| PROCEDURE read* (fd :INTEGER; VAR buf :ARRAY OF BYTE; len :INTEGER) :INTEGER; |
| BEGIN RETURN _unix._read (fd, SYSTEM.ADR(buf[0]), len) END read; |
| |
| PROCEDURE readByte* (fd :INTEGER; VAR n :BYTE) :INTEGER; |
| BEGIN RETURN _unix._read (fd, SYSTEM.ADR(n), 1) END readByte; |
| |
| PROCEDURE write* (fd :INTEGER; buf :ARRAY OF BYTE; len :INTEGER) :INTEGER; |
| BEGIN RETURN _unix._write (fd, SYSTEM.ADR(buf[0]), len) END write; |
| |
| PROCEDURE writeByte* (fd :INTEGER; n :BYTE) :INTEGER; |
| BEGIN RETURN _unix._write (fd, SYSTEM.ADR(n), 1) END writeByte; |
| |
| |
| PROCEDURE FD_ZERO* (VAR selectSet :fd_set); |
| VAR i :INTEGER; |
| BEGIN FOR i := 0 TO LEN_FD_SET-1 DO selectSet.bits[i] := {} END END FD_ZERO; |
| |
| PROCEDURE FD_SET* (fd :INTEGER; VAR selectSet :fd_set); (* set fd bit in a select() fd_set *) |
| BEGIN INCL(selectSet.bits[fd DIV BIT_DEPTH], fd MOD BIT_DEPTH) |
| END FD_SET; |
| |
| PROCEDURE select* (cnt :INTEGER; readfds, writefds, exceptfds :fd_set; timeout :timespec) :INTEGER; |
| VAR n1, n2, n3 :INTEGER; |
| BEGIN |
| n1 := 0; IF readfds # NIL THEN n1 := SYSTEM.ADR (readfds.bits[0]) END; |
| n2 := 0; IF writefds # NIL THEN n2 := SYSTEM.ADR (writefds.bits[0]) END; |
| n3 := 0; IF exceptfds # NIL THEN n3 := SYSTEM.ADR (exceptfds.bits[0]) END; |
| RETURN _unix._select (cnt, n1, n2, n3, SYSTEM.ADR(timeout)) |
| END select; |
| |
| |
| PROCEDURE finish*; |
| BEGIN _unix.finish; END finish; |
| |
| BEGIN |
| dlopen := _unix._dlopen; |
| dlsym := _unix._dlsym; |
| dlclose := _unix._dlclose; |
| close := _unix._close; |
| exit := _unix._exit; |
| malloc := _unix._malloc; |
| END unix. |
| |