osfmk/vm/vm_map.h

15  * Please obtain a copy of the License at
36  * Permission to use, copy, modify and distribute this software and its
127  *				 used for inter-map copy operations
174 		vm_map_copy_t	copy;		/* a VM map copy */
185 	/* boolean_t */		is_copy:1;	/* ... a VM map copy */
198  *		Control information for virtual copy operations is also
389  *		A map copy object represents a region of virtual memory
393  *		A map copy object may only be used by a single thread
397  * 		There are three formats for map copy objects.
401  *		be used with either address maps or map copy objects.
403  *		The map copy object contains a header links
409  *		except for placeholder copy objects (see vm_map_copy_copy()).
411  *		The third format is a kernel buffer copy object - for data
441 #define VM_MAP_COPY_PAGE_SHIFT(copy) ((copy)->cpy_hdr.page_shift)
442 #define VM_MAP_COPY_PAGE_SIZE(copy) (1 << VM_MAP_COPY_PAGE_SHIFT((copy)))
443 #define VM_MAP_COPY_PAGE_MASK(copy) (VM_MAP_COPY_PAGE_SIZE((copy)) - 1)
446  *	Useful macros for entry list copy objects
449 #define vm_map_copy_to_entry(copy)		\
450 		((struct vm_map_entry *) &(copy)->cpy_hdr.links)
451 #define vm_map_copy_first_entry(copy)		\
452 		((copy)->cpy_hdr.links.next)
453 #define vm_map_copy_last_entry(copy)		\
454 		((copy)->cpy_hdr.links.prev)
519 	vm_map_copy_t		copy,
726 /* Move the information in a map copy object to a new map copy object */
728 				vm_map_copy_t           copy);
730 /* Create a copy object from an object. */
771 				boolean_t		copy,
984 /* Discard a copy without using it */
986 				vm_map_copy_t		copy);
988 /* Overwrite existing memory with a copy */
992 				vm_map_copy_t           copy,
995 /* Place a copy into a map */
999 				vm_map_copy_t		copy);
1004 	vm_map_copy_t		copy,