kernel/fiasco/src/kern/kobject_iface.cpp

   1 INTERFACE:
   2
   3 #include "l4_types.h"
   4
   5 class Kobject;
   6 class Kobject_dbg;
   7 class Kobject_mappable;
   8
   9 class Space;
  10 class Syscall_frame;
  11 class Utcb;
  12
  13 class Kobject_common
  14 {
  15 public:
  16   virtual char const *kobj_type() const = 0;
  17   virtual Address kobject_start_addr() const = 0;
  18
  19   virtual bool is_local(Space *) const  = 0;
  20   virtual Mword obj_id() const  = 0;
  21   virtual void initiate_deletion(Kobject ***) = 0;
  22
  23   virtual Kobject_mappable *map_root() = 0;
  24   virtual ~Kobject_common() = 0;
  25 };
  26
  27 class Kobject_iface : public Kobject_common
  28 {
  29 public:
  30   virtual void invoke(L4_obj_ref self, L4_fpage::Rights rights, Syscall_frame *, Utcb *) = 0;
  31 };
  32
  33 IMPLEMENTATION:
  34
  35 IMPLEMENT inline Kobject_common::~Kobject_common() {}
  36
  37 PUBLIC static inline
  38 L4_msg_tag
  39 Kobject_iface::commit_result(Mword error,
  40                              unsigned words = 0, unsigned items = 0)
  41 {
  42   return L4_msg_tag(words, items, 0, error);
  43 }
  44
  45 PUBLIC static inline
  46 L4_msg_tag
  47 Kobject_iface::commit_error(Utcb const *utcb, L4_error const &e,
  48                             L4_msg_tag const &tag = L4_msg_tag(0, 0, 0, 0))
  49 {
  50   const_cast<Utcb*>(utcb)->error = e;
  51   return L4_msg_tag(tag, L4_msg_tag::Error);
  52 }
  53
  54 PUBLIC virtual
  55 Kobject_iface *
  56 Kobject_iface::downgrade(unsigned long del_attribs)
  57 { (void)del_attribs; return this; }
  58
  59
  60 // ------------------------------------------------------------------------
  61 IMPLEMENTATION [debug]:
  62
  63 PUBLIC virtual Kobject_dbg *Kobject_common::dbg_info() const = 0;