rts::gc_ptr Struct Reference

A heap pointer. More...

#include <rts/gc.h>

Public Member Functions
template<typename T >
T &	operator* ()
template<typename T >
T *	operator-> ()
template<typename T >
T &	operator[] (std::ptrdiff_t i)
void	lvb (uint64_t *address, bool unique_context=true)
	loaded-value-barrier read-barrier, modified to do contraction of "locally unique" references when the context isn't unique.

Public Attributes
union {
uint64_t   unique: 1
	does this reference locally believe it is unique?
uint64_t   type: 2
	what type of this pointer is this?
uint64_t   offset: 9
	offset within a 4k page
uint64_t   segment: 9
	which 4k page within a 2mb region
uint64_t   region: 19
	which 2mb region in the system? 1tb addressable.
uint64_t   nmt: 1
	not-marked-through toggle for LVB read-barrier
uint64_t   space: 4
	which generation/space are we in?
uint64_t   tag: 19
	constructor #
uint64_t   addr
};

Static Public Attributes
static const uint64_t	mask = 0x7ffffffff8
	mask for the offset, segment and region

Detailed Description

A heap pointer.

---

The documentation for this struct was generated from the following file:

• rts/gc.h