rom/partition/createpartitiontable.c

   1 /*
   2     Copyright © 1995-2001, 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 the
  37     same as when calling OpenPartitionTable(). Therefore before closing the
  38     PartitionHandle you should call ClosePartitionTable().
  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     LONG retval=1;
  54
  55     if (root->table == NULL)
  56     {
  57         const struct PTFunctionTable * const *pst;
  58
  59         pst = PartitionSupport;
  60         while (pst[0])
  61         {
  62             if (pst[0]->type == type)
  63             {
  64                 if (pst[0]->createPartitionTable)
  65                 {
  66                     root->table = AllocMem
  67                         (
  68                             sizeof(struct PartitionTableHandler),
  69                             MEMF_PUBLIC | MEMF_CLEAR
  70                         );
  71                     if (root->table)
  72                     {
  73                         root->table->type = type;
  74                         root->table->handler = (APTR)*pst;
  75                         retval = pst[0]->createPartitionTable(PartitionBase, root);
  76                         if (retval != 0)
  77                         {
  78                             FreeMem(root->table, sizeof(struct PartitionTableHandler));
  79                             root->table = NULL;
  80                         }
  81                         return retval;
  82                     }
  83                 }
  84                 return 1;
  85             }
  86             pst++;
  87         }
  88     }
  89     return 1;
  90     AROS_LIBFUNC_EXIT
  91 }