rom/partition/createpartitiontable.c

   1 /*
   2     Copyright © 1995-2017, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <exec/memory.h>
   7 #include <proto/exec.h>
   8 #include "partition_support.h"
   9 #include "platform.h"
  10
  11 /*****************************************************************************
  12
  13     NAME */
  14 #include <libraries/partition.h>
  15
  16         AROS_LH2(LONG, CreatePartitionTable,
  17
  18 /*  SYNOPSIS */
  19         AROS_LHA(struct PartitionHandle *, root,       A1),
  20         AROS_LHA(ULONG,                    type,       D1),
  21
  22 /*  LOCATION */
  23         struct Library *, PartitionBase, 10, Partition)
  24
  25 /*  FUNCTION
  26         Create a new partition table.
  27
  28     INPUTS
  29         root - partition to create table in
  30         type - the type of the partition table to create
  31
  32     RESULT
  33         0 on success; an error code otherwise
  34
  35     NOTES
  36         After calling this function the state of the PartitionHandle will be
  37         the same as when calling OpenPartitionTable(). Therefore before
  38         closing the PartitionHandle you should call ClosePartitionTable().
  39
  40     EXAMPLE
  41
  42     BUGS
  43
  44     SEE ALSO
  45
  46     INTERNALS
  47
  48 *****************************************************************************/
  49 {
  50     AROS_LIBFUNC_INIT
  51     LONG retval=1;
  52
  53     if (root->table == NULL)
  54     {
  55         const struct PTFunctionTable * const *pst;
  56
  57         pst = PartitionSupport;
  58         while (pst[0])
  59         {
  60             if (pst[0]->type == type)
  61             {
  62                 if (pst[0]->createPartitionTable)
  63                 {
  64                     root->table = AllocMem
  65                         (
  66                             sizeof(struct PartitionTableHandler),
  67                             MEMF_PUBLIC | MEMF_CLEAR
  68                         );
  69                     if (root->table)
  70                     {
  71                         root->table->type = type;
  72                         root->table->handler = (APTR)*pst;
  73                         retval = pst[0]->createPartitionTable(PartitionBase, root);
  74                         if (retval != 0)
  75                         {
  76                             FreeMem(root->table, sizeof(struct PartitionTableHandler));
  77                             root->table = NULL;
  78                         }
  79                         return retval;
  80                     }
  81                 }
  82                 return 1;
  83             }
  84             pst++;
  85         }
  86     }
  87     return 1;
  88     AROS_LIBFUNC_EXIT
  89 }