rom/dos/samedevice.c

   1 /*
   2     Copyright © 1995-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6     Lang: english
   7 */
   8 #include "dos_intern.h"
   9
  10 /*****************************************************************************
  11
  12     NAME */
  13 #include <proto/dos.h>
  14
  15         AROS_LH2(BOOL, SameDevice,
  16
  17 /*  SYNOPSIS */
  18         AROS_LHA(BPTR, lock1, D1),
  19         AROS_LHA(BPTR, lock2, D2),
  20
  21 /*  LOCATION */
  22         struct DosLibrary *, DOSBase, 164, Dos)
  23
  24 /*  FUNCTION
  25         Checks if two locks are on the same device.
  26
  27     INPUTS
  28         lock1, lock2 - locks to compare
  29
  30     RESULT
  31         DOSTRUE when locks are on the same device
  32
  33     NOTES
  34
  35     EXAMPLE
  36
  37     BUGS
  38
  39     SEE ALSO
  40
  41     INTERNALS
  42
  43 *****************************************************************************/
  44 {
  45     AROS_LIBFUNC_INIT
  46
  47     struct FileLock *fl1, *fl2;
  48
  49     if (lock1 == BNULL || lock2 == BNULL)
  50         return DOSFALSE;
  51
  52     fl1 = (struct FileLock *)BADDR(lock1);
  53     fl2 = (struct FileLock *)BADDR(lock2);
  54
  55     if (fl1->fl_Volume == fl2->fl_Volume && fl1->fl_Task == fl2->fl_Task)
  56         return DOSTRUE;
  57
  58     return DOSFALSE;
  59
  60     AROS_LIBFUNC_EXIT
  61 } /* SameDevice */