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