Internal Interface: memory management. More...
Go to the source code of this file.
Macros | |
#define | MM_FREE 0x0000 |
marker: block free More... | |
#define | MM_RESERVED 0xffff |
marker: block reserved More... | |
#define | MM_HEADER_SIZE 2 |
2 words header: pid, size More... | |
#define | MM_SPLIT_THRESH (MM_HEADER_SIZE+8) |
split off if 8+ data bytes More... | |
#define | MM_BLOCK_FREE(addr) |
memory from addr on can be allocated More... | |
#define | MM_BLOCK_RESERVED(addr) |
memory from addr on is reserved More... | |
Functions | |
void | mm_init () |
initialize memory management More... | |
void | mm_reaper () |
free all blocks allocated by the current process More... | |
int | mm_free_mem (void) |
how many bytes of memory are free? More... | |
Variables | |
size_t | mm_start |
end of kernel code + data More... | |
size_t * | mm_first_free |
ptr to first free block. More... | |
Internal Interface: memory management.
Definition in file mm.h.
#define MM_BLOCK_FREE | ( | addr | ) |
#define MM_BLOCK_RESERVED | ( | addr | ) |
memory from addr on is reserved
Macro for mm_init(). Always alternate MM_BLOCK_FREE and MM_BLOCK_RESERVED.
#define MM_SPLIT_THRESH (MM_HEADER_SIZE+8) |
int mm_free_mem | ( | void | ) |
how many bytes of memory are free?
void mm_init | ( | ) |
initialize memory management
Referenced by kmain().
void mm_reaper | ( | ) |
free all blocks allocated by the current process
size_t* mm_first_free |
ptr to first free block.
size_t mm_start |
end of kernel code + data
brickOS is released under the
Mozilla Public License.
Original code copyright 1998-2005 by the authors. |