workbench/libs/partition/openpartitiontable.c

   1 /*
   2     Copyright © 1995-2009, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5 */
   6 #include <exec/memory.h>
   7 #include <proto/exec.h>
   8 #include "partition_intern.h"
   9 #include "partition_support.h"
  10 #include "platform.h"
  11
  12 /*****************************************************************************
  13
  14     NAME */
  15 #include <libraries/partition.h>
  16
  17         AROS_LH1(LONG, OpenPartitionTable,
  18
  19 /*  SYNOPSIS */
  20         AROS_LHA(struct PartitionHandle *, root, A1),
  21
  22 /*  LOCATION */
  23         struct Library *, PartitionBase, 7, Partition)
  24
  25 /*  FUNCTION
  26         Open a partition table. On success root->list will be filled with a
  27         list of PartitionHandles. If one partition contains more
  28         subpartitions, the caller should call OpenPartitionTable() on the
  29         PartitionHandle recursively.
  30
  31     INPUTS
  32         root - root partition
  33
  34     RESULT
  35         0 for success; an error code otherwise.
  36
  37     NOTES
  38
  39     EXAMPLE
  40
  41     BUGS
  42
  43     SEE ALSO
  44
  45     INTERNALS
  46
  47     HISTORY
  48         21-02-02    first version
  49
  50 *****************************************************************************/
  51 {
  52     AROS_LIBFUNC_INIT
  53
  54     struct PTFunctionTable **pst;
  55
  56     pst = PartitionSupport;
  57     while (pst[0])
  58     {
  59         if (pst[0]->checkPartitionTable(PartitionBase, root))
  60         {
  61             root->table = AllocMem
  62                 (
  63                     sizeof(struct PartitionTableHandler),
  64                     MEMF_PUBLIC | MEMF_CLEAR
  65                 );
  66             if (root->table)
  67             {
  68             LONG retval;
  69
  70                 root->table->type = pst[0]->type;
  71                 root->table->handler = *pst;
  72                 retval = pst[0]->openPartitionTable(PartitionBase, root);
  73                 if (retval!=0)
  74                 {
  75                     FreeMem(root->table, sizeof(struct PartitionTableHandler));
  76                     root->table = NULL;
  77                 }
  78                 return retval;
  79             }
  80         }
  81         pst++;
  82     }
  83     return 1;
  84     AROS_LIBFUNC_EXIT
  85 }