rom/utility/intern.h

   1 /*
   2     Copyright © 1995-2006, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Internal information for utility.library.
   6     Lang:
   7 */
   8 #ifndef UTILITY_INTERN_H
   9 #define UTILITY_INTERN_H
  10
  11 #ifndef EXEC_TYPES_H
  12 #include <exec/types.h>
  13 #endif
  14 #ifndef EXEC_NODES_H
  15 #include <exec/nodes.h>
  16 #endif
  17 #ifndef EXEC_LISTS_H
  18 #include <exec/lists.h>
  19 #endif
  20 #ifndef EXEC_LIBRARIES_H
  21 #include <exec/libraries.h>
  22 #endif
  23 #ifndef EXEC_MEMORY_H
  24 #include <exec/memory.h>
  25 #endif
  26 #ifndef EXEC_IO_H
  27 #include <exec/io.h>
  28 #endif
  29 #ifndef EXEC_SEMAPHORES_H
  30 #include <exec/semaphores.h>
  31 #endif
  32 #ifndef UTILITY_TAGITEM_H
  33 #include <utility/tagitem.h>
  34 #endif
  35 #ifndef UTILITY_NAME_H
  36 #include <utility/name.h>
  37 #endif
  38 #ifndef UTILITY_DATE_H
  39 #include <utility/date.h>
  40 #endif
  41 #ifndef UTILITY_PACK_H
  42 #include <utility/pack.h>
  43 #endif
  44 #ifndef AROS_LIBCALL_H
  45 #include <aros/libcall.h>
  46 #endif
  47 #ifndef AROS_DEBUG_H
  48 #include <aros/debug.h>
  49 #endif
  50 #ifndef UTILITY_UTILITY_H
  51 #include <utility/utility.h>
  52 #endif
  53 #ifndef PROTO_ALIB_H
  54 #include <proto/alib.h>
  55 #endif
  56 #ifndef PROTO_EXEC_H
  57 #include <proto/exec.h>
  58 #endif
  59 #ifndef PROTO_UTILITY_H
  60 #include <proto/utility.h>
  61 #endif
  62
  63 /* Definition of a utility namespace, needed here for the library base. */
  64
  65 struct NameSpace
  66 {
  67     struct MinList          ns_List;
  68     struct SignalSemaphore  ns_Lock;
  69     ULONG                   ns_Flags;
  70 };
  71
  72 /*
  73     This is the internal version of the UtilityBase structure
  74 */
  75
  76 struct IntUtilityBase
  77 {
  78     struct UtilityBase UBase;
  79
  80     /* This is where the private data starts. */
  81     ULONG                ub_LastID;
  82     struct NameSpace     ub_NameSpace;
  83 };
  84
  85 #define GetIntUtilityBase(ub)   ((struct IntUtilityBase *)(ub))
  86 #define GetUtilityBase(ub)      (&GetIntUtilityBase(ub)->UBase)
  87
  88 /*
  89     Internal versions of the NamedObject structures.
  90     Access using GetIntNamedObject()
  91
  92     I have a problem here of sorts. The autodocs do not give enough
  93     information really. They say it is possible to nest NamedObjects
  94     with namespaces, however the implementation didn't allow NamedObjects
  95     with their own namespaces to be members of a namespace.
  96
  97     However, the autodocs are right, so you can nest like that.
  98 */
  99
 100 struct IntNamedObject
 101 {
 102     struct NamedObject  no;
 103
 104     struct Node         no_Node;
 105     struct NameSpace   *no_ParentSpace;     /* The NameSpace I am in */
 106     struct NameSpace   *no_NameSpace;       /* My NameSpace */
 107     struct Message     *no_FreeMessage;
 108     UWORD               no_UseCount;
 109     BOOL                no_FreeObject;
 110 };
 111
 112 #define GetIntNamedObject(no)   ((struct IntNamedObject *)(no))
 113 #define GetNamedObject(no)      (&GetIntNamedObject(no)->no)
 114
 115 /* Internal function prototypes */
 116 struct NameSpace *GetNameSpace(struct NamedObject *, struct UtilityBase *);
 117 struct IntNamedObject *IntFindNamedObj(struct NameSpace *, struct Node *, STRPTR, struct UtilityBase *);
 118
 119 /*
 120     Access union to get a some memory in Pack|UnpackStructureTags(). I use
 121     this because
 122     a) it's neater.
 123     b) it avoids any bizarre aliasing problems in the compiler.
 124     c) did I say it makes stuff easier to read? :-)
 125 */
 126 union memaccess
 127 {
 128     UBYTE   ub;
 129     UWORD   uw;
 130     ULONG   ul;
 131     BYTE    sb;
 132     WORD    sw;
 133     LONG    sl;
 134 };
 135
 136 #endif