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 };
  25
  26 class Kobject_iface : public Kobject_common
  27 {
  28 public:
  29   virtual void invoke(L4_obj_ref self, Mword rights, Syscall_frame *, Utcb *) = 0;
  30 };
  31
  32 IMPLEMENTATION:
  33
  34 PUBLIC static inline
  35 L4_msg_tag
  36 Kobject_iface::commit_result(Mword error,
  37                              unsigned words = 0, unsigned items = 0)
  38 {
  39   return L4_msg_tag(words, items, 0, error);
  40 }
  41
  42 PUBLIC static inline
  43 L4_msg_tag
  44 Kobject_iface::commit_error(Utcb const *utcb, L4_error const &e,
  45                             L4_msg_tag const &tag = L4_msg_tag(0, 0, 0, 0))
  46 {
  47   const_cast<Utcb*>(utcb)->error = e;
  48   return L4_msg_tag(tag, L4_msg_tag::Error);
  49 }
  50
  51 PUBLIC virtual
  52 Kobject_iface *
  53 Kobject_iface::downgrade(unsigned long del_attribs)
  54 { (void)del_attribs; return this; }
  55
  56
  57 // ------------------------------------------------------------------------
  58 IMPLEMENTATION [debug]:
  59
  60 PUBLIC virtual Kobject_dbg *Kobject_common::dbg_info() const = 0;