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vecmem 1.14.0
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Helper class to refer to pages in superpages. More...
#include </home/runner/work/vecmem/vecmem/core/src/memory/details/binary_page_memory_resource_impl.hpp>
Public Member Functions | |
| page_ref ()=delete | |
| Delete the meaningless default constructor. | |
| page_ref (const page_ref &)=default | |
| Default implementation of copy constructor. | |
| page_ref (page_ref &&)=default | |
| Default implementation of move constructor. | |
| page_ref (superpage &, std::size_t) | |
| Construct a page from a superpage and an index into that superpage. | |
| page_ref & | operator= (page_ref &&)=default |
| Default implementation of move assignment. | |
| bool | operator== (const page_ref &) const |
| Equality operator of pages. | |
| bool | operator!= (const page_ref &) const |
| Inquality operator of pages. | |
| std::size_t | get_size () const |
| Return the size (log_2) of the page referenced. | |
| page_state | get_state () const |
| Return the state of the page referenced. | |
| void * | get_addr () const |
| Return the beginning of the address space represented by this page. | |
| page_ref | left_child () const |
| Obtain a reference to this page's left child. | |
| page_ref | right_child () const |
| Obtain a reference to this page's left child. | |
| std::optional< page_ref > | parent () const |
| Obtain a reference to this page's parent, if such a node exists. | |
| std::optional< page_ref > | sibling () const |
| Obtain a reference to this page's sibling, if such a node exists. | |
| void | unsplit () |
| Unsplit the current page, potentially unsplitting its children, too. | |
| void | split () |
| Split the current page. | |
| void | change_state_vacant_to_occupied () |
| Change page state from vacant to occupied. | |
| void | change_state_occupied_to_vacant () |
| Change page state from occupied to vacant. | |
| void | change_state_non_extant_to_vacant () |
| Change page state from non-extant to vacant. | |
| void | change_state_vacant_to_non_extant () |
| Change page state from vacant to non-extant. | |
| void | change_state_vacant_to_split () |
| Change page state from vacant to split. | |
| void | change_state_split_to_vacant () |
| Change page state from split to vacant. | |
| std::size_t | get_index () |
| Get the page index in the superpage. | |
Helper class to refer to pages in superpages.
We identify individual pages as a tuple of the superpage and their index in that superpage. This class exists to more ergonomically work with these tuples, providing a variety of helper methods.
1.9.8