rom/partition/loadbootfilesystems.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <aros/debug.h>
   7 #include <aros/libcall.h>
   8 #include <dos/dosextens.h>
   9 #include <proto/dos.h>
  10 #include <proto/exec.h>
  11
  12 #include "partition_support.h"
  13 #include "fsloader.h"
  14
  15 /*****************************************************************************
  16
  17     NAME */
  18         AROS_LH0(LONG, LoadBootFileSystems,
  19
  20 /*  SYNOPSIS */
  21
  22 /*  LOCATION */
  23         struct Library *, PartitionBase, 24, Partition)
  24
  25 /*  FUNCTION
  26         Perform a deferred loading of boot filesystems.
  27
  28     INPUTS
  29         None.
  30
  31     RESULT
  32         Zero if everything went okay or DOS error code in case of failure.
  33
  34     NOTES
  35         This function is actually private, it's called by dos.library during
  36         initialization process. There's no sense to call it from within user
  37         software.
  38
  39     EXAMPLE
  40
  41     BUGS
  42
  43     SEE ALSO
  44
  45     INTERNALS
  46
  47     HISTORY
  48
  49 *****************************************************************************/
  50 {
  51     AROS_LIBFUNC_INIT
  52
  53     struct BootFileSystem *bfs, *bfs2;
  54     struct DosLibrary *DOSBase;
  55     ULONG lasterr = 0;
  56
  57     PBASE(PartitionBase)->pb_DOSBase = OpenLibrary("dos.library", 36);
  58     DOSBase = (struct DosLibrary *)PBASE(PartitionBase)->pb_DOSBase;
  59     /* We should really have dos.library online now */
  60     D(bug("[LoadBootPartitions] DOSBase 0x%p\n", DOSBase));
  61     if (!DOSBase)
  62         return ERROR_INVALID_RESIDENT_LIBRARY;
  63
  64     ObtainSemaphore(&PBASE(PartitionBase)->bootSem);
  65
  66     ForeachNodeSafe(&PBASE(PartitionBase)->bootList, bfs, bfs2)
  67     {
  68         ULONG res;
  69         /*
  70          * Unfortunately we have no way to process errors here.
  71          * Well, let's hope that everything will be okay.
  72          */
  73         D(bug("[LoadBootPartitions] Loading %s...\n", bfs->ln.ln_Name));
  74
  75         res = AddFS(PartitionBase, bfs->handle);
  76         if (res)
  77         {
  78             lasterr = res;
  79         }
  80         else
  81         {
  82             /* A filesystem is loaded, remove it from the queue and free associated data. */
  83             Remove(&bfs->ln);
  84             bfs->handle->handler->freeFileSystem(bfs->handle);
  85             FreeMem(bfs, sizeof(struct BootFileSystem));
  86         }
  87     }
  88
  89     ReleaseSemaphore(&PBASE(PartitionBase)->bootSem);
  90
  91     /*
  92      * We don't hold dos.library here because it may want to be expunged
  93      * (see dos_init.c and cliinit.c).
  94      */
  95     CloseLibrary(&DOSBase->dl_lib);
  96     return lasterr;
  97
  98     AROS_LIBFUNC_EXIT
  99 }