workbench/libs/nonvolatile/getcopynv.c

   1 /*
   2     Copyright © 1995-2006, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <string.h>
   7 #include <dos/dosextens.h>
   8
   9 /*****************************************************************************
  10
  11     NAME */
  12
  13 #include <libraries/nonvolatile.h>
  14 #include <proto/exec.h>
  15 #include <proto/nvdisk.h>
  16
  17 AROS_LH3(APTR, GetCopyNV,
  18
  19 /*  SYNOPSIS */
  20
  21         AROS_LHA(STRPTR, appName,        A0),
  22         AROS_LHA(STRPTR, itemName,       A1),
  23         AROS_LHA(BOOL,   killRequesters, D1),
  24
  25 /*  LOCATION */
  26
  27         struct Library *, nvBase, 5, Nonvolatile)
  28
  29 /*  FUNCTION
  30
  31     Search the nonvolatile storage for the object 'itemName' allocated by
  32     'appName' and return a copy of the data.
  33
  34     INPUTS
  35
  36     appName         --  name of the application that allocated the item
  37     itemName        --  the object to look for
  38     killRequesters  --  if TRUE no system requesters will be allowed to be
  39                         displayed during the operation of this function
  40
  41     RESULT
  42
  43     Pointer to the data assocated with 'itemName' as allocated by 'appName'.
  44
  45     NOTES
  46
  47     EXAMPLE
  48
  49     BUGS
  50
  51     SEE ALSO
  52
  53     FreeNVData(), <libraries/nonvolatile.h>
  54
  55     INTERNALS
  56
  57 ******************************************************************************/
  58
  59 {
  60     AROS_LIBFUNC_INIT
  61
  62     struct Process *me = (struct Process *)FindTask(NULL);
  63     APTR oldReq = me->pr_WindowPtr;
  64     APTR result;
  65
  66     if(appName == NULL || itemName == NULL)
  67         return NULL;
  68
  69     if(strpbrk(appName, ":/") != NULL ||
  70        strpbrk(itemName, ":/") != NULL)
  71         return NULL;
  72
  73     if(killRequesters)
  74         me->pr_WindowPtr = (APTR)-1;
  75
  76     result = ReadData(appName, itemName);
  77
  78     if(killRequesters)
  79         me->pr_WindowPtr = oldReq;
  80
  81     return result;
  82
  83     AROS_LIBFUNC_EXIT
  84 } /* GetCopyNV */