gcc/testsuite/gm2/isolib/run/pass/testmem.mod

   1 (* Copyright (C) 2011 Free Software Foundation, Inc. *)
   2 (* This file is part of GNU Modula-2.
   3
   4 GNU Modula-2 is free software; you can redistribute it and/or modify it under
   5 the terms of the GNU General Public License as published by the Free
   6 Software Foundation; either version 3, or (at your option) any later
   7 version.
   8
   9 GNU Modula-2 is distributed in the hope that it will be useful, but WITHOUT ANY
  10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 for more details.
  13
  14 You should have received a copy of the GNU General Public License along
  15 with gm2; see the file COPYING.  If not, write to the Free Software
  16 Foundation, 51 Franklin Street, Fifth Floor,
  17 Boston, MA 02110-1301, USA. *)
  18
  19 MODULE testmem ;
  20
  21 FROM MemStream IMPORT OpenRead, OpenWrite, Close ;
  22 FROM ChanConsts IMPORT FlagSet, OpenResults, raw, write, read ;
  23 FROM IOChan IMPORT ChanId ;
  24 FROM SYSTEM IMPORT ADDRESS ;
  25 FROM libc IMPORT printf ;
  26
  27 IMPORT RawIO ;
  28
  29 CONST
  30    Amount = 1000 ;
  31
  32 VAR
  33    fd    : ChanId ;
  34    res   : OpenResults ;
  35    start : ADDRESS ;
  36    length: CARDINAL ;
  37    used  : CARDINAL ;
  38    i,
  39    value : CARDINAL ;
  40 BEGIN
  41    OpenWrite (fd, raw+write, res, start, length, used, FALSE) ;
  42    IF res=opened
  43    THEN
  44       FOR i := 1 TO Amount DO
  45          RawIO.Write (fd, i)
  46       END ;
  47       Close(fd) ;
  48       printf ("buffer at %p has length 0x%x bytes and 0x%x are used\n",
  49               start, length, used);
  50       IF used#SIZE(CARDINAL)*Amount
  51       THEN
  52          HALT
  53       END ;
  54       OpenRead (fd, raw+read, res, start, length, TRUE) ;
  55       FOR i := 1 TO Amount DO
  56          RawIO.Read (fd, value) ;
  57          IF i#value
  58          THEN
  59             HALT
  60          END
  61       END ;
  62       printf ("read the contents of the complete buffer successfully");
  63    ELSE
  64       HALT
  65    END
  66 END testmem.