clang/test/Analysis/os_object_base.h

   1 #ifndef _OS_BASE_H
   2 #define _OS_BASE_H
   3
   4 #define OS_CONSUME __attribute__((os_consumed))
   5 #define OS_RETURNS_RETAINED __attribute__((os_returns_retained))
   6 #define OS_RETURNS_RETAINED_ON_ZERO __attribute__((os_returns_retained_on_zero))
   7 #define OS_RETURNS_RETAINED_ON_NONZERO __attribute__((os_returns_retained_on_non_zero))
   8 #define OS_RETURNS_NOT_RETAINED __attribute__((os_returns_not_retained))
   9 #define OS_CONSUMES_THIS __attribute__((os_consumes_this))
  10
  11 #define OSTypeID(type)   (type::metaClass)
  12
  13 #define OSDynamicCast(type, inst)   \
  14     ((type *) OSMetaClassBase::safeMetaCast((inst), OSTypeID(type)))
  15 #define OSRequiredCast(type, inst)   \
  16     ((type *) OSMetaClassBase::requiredMetaCast((inst), OSTypeID(type)))
  17
  18 #define OSTypeAlloc(type)   ((type *) ((type::metaClass)->alloc()))
  19
  20 using size_t = decltype(sizeof(int));
  21
  22 typedef int kern_return_t;
  23 struct IORPC {};
  24
  25 struct OSMetaClass;
  26
  27 struct OSMetaClassBase {
  28   static OSMetaClassBase *safeMetaCast(const OSMetaClassBase *inst,
  29                                        const OSMetaClass *meta);
  30   static OSMetaClassBase *requiredMetaCast(const OSMetaClassBase *inst,
  31                                            const OSMetaClass *meta);
  32
  33   OSMetaClassBase *metaCast(const char *toMeta);
  34
  35   virtual void retain() const;
  36   virtual void release() const;
  37
  38   virtual void taggedRetain(const void * tag = nullptr) const;
  39   virtual void taggedRelease(const void * tag = nullptr) const;
  40
  41   virtual void free();
  42   virtual ~OSMetaClassBase(){};
  43
  44   kern_return_t Invoke(IORPC invoke);
  45 };
  46
  47 typedef kern_return_t (*OSDispatchMethod)(OSMetaClassBase *self,
  48                                           const IORPC rpc);
  49
  50 struct OSObject : public OSMetaClassBase {
  51   virtual ~OSObject(){}
  52
  53   unsigned int foo() { return 42; }
  54
  55   virtual OS_RETURNS_NOT_RETAINED OSObject *identity();
  56
  57   static OSObject *generateObject(int);
  58
  59   static OSObject *getObject();
  60   static OSObject *GetObject();
  61
  62   static void * operator new(size_t size);
  63
  64   static const OSMetaClass * const metaClass;
  65 };
  66
  67 struct OSMetaClass : public OSMetaClassBase {
  68   virtual OSObject * alloc() const;
  69   static OSObject * allocClassWithName(const char * name);
  70   static const OSMetaClass *copyMetaClassWithName(const char *name);
  71   void releaseMetaClass() const;
  72   virtual ~OSMetaClass(){}
  73 };
  74
  75 #endif /* _OS_BASE_H */