arch/all-hosted/filesys/emul_handler/emul_init.c

   1 /*
   2  Copyright  1995-2011, The AROS Development Team. All rights reserved.
   3  $Id$
   4
   5  Desc: Filesystem that accesses an underlying host OS filesystem.
   6  Lang: english
   7  */
   8
   9 /*********************************************************************************************/
  10
  11 #define DEBUG 0
  12
  13 #include <aros/debug.h>
  14 #include <aros/symbolsets.h>
  15 #include <libraries/expansion.h>
  16 #include <resources/filesysres.h>
  17 #include <proto/arossupport.h>
  18 #include <proto/dos.h>
  19 #include <proto/exec.h>
  20 #include <proto/expansion.h>
  21
  22 #include "emul_intern.h"
  23 #include LC_LIBDEFS_FILE
  24
  25 #include <limits.h>
  26 #include <string.h>
  27 #include <stddef.h>
  28
  29 static LONG startup(struct emulbase *emulbase)
  30 {
  31     APTR ExpansionBase;
  32
  33     D(bug("[Emulhandler] startup\n"));
  34
  35     HostLibBase = OpenResource("hostlib.resource");
  36     D(bug("[EmulHandler] got hostlib.resource %p\n", HostLibBase));
  37     if (!HostLibBase)
  38         return FALSE;
  39
  40     KernelBase = OpenResource("kernel.resource");
  41     D(bug("[EmulHandler] KernelBase = %p\n", KernelBase));
  42     if (!KernelBase)
  43         return FALSE;
  44
  45     emulbase->mempool = CreatePool(MEMF_ANY|MEMF_SEM_PROTECTED, 4096, 2000);
  46     if (!emulbase->mempool)
  47         return FALSE;
  48
  49     /* Create a BootNode so we can boot from this device */
  50     if ((ExpansionBase = OpenLibrary("expansion.library", 0)))
  51     {
  52         struct DeviceNode *dn;
  53         IPTR pp[4 + sizeof(struct DosEnvec)/sizeof(IPTR)] = {};
  54
  55         pp[0]                 = (IPTR)"EMU";
  56         pp[1]                 = 0;
  57         pp[2]                 = 0;
  58         pp[DE_TABLESIZE  + 4] = DE_DOSTYPE;
  59         /* .... */
  60         pp[DE_BUFMEMTYPE + 4] = MEMF_PUBLIC;
  61         pp[DE_MASK       + 4] = -1;
  62         pp[DE_BOOTPRI    + 4] = 0;
  63         pp[DE_DOSTYPE    + 4] = AROS_MAKE_ID('E', 'M', 'U', 0);
  64
  65         dn = MakeDosNode(pp);
  66         if (dn)
  67         {
  68             dn->dn_SegList = CreateSegList(EmulHandlerMain);
  69             dn->dn_Handler = AROS_CONST_BSTR("emul-handler");
  70             dn->dn_StackSize = 16384;
  71             dn->dn_GlobalVec = (BPTR)-1;
  72
  73             AddDosNode(0, ADNF_STARTPROC, dn);
  74         }
  75
  76         CloseLibrary(ExpansionBase);
  77     }
  78
  79     return TRUE;
  80 }
  81
  82 ADD2INITLIB(startup, -10)
  83
  84 /*********************************************************************************************/
  85
  86 static LONG cleanup(struct emulbase *emulbase)
  87 {
  88     if (emulbase->mempool)
  89         DeletePool(emulbase->mempool);
  90
  91     return TRUE;
  92 }
  93
  94 ADD2EXPUNGELIB(cleanup, 10);