Struct buddy_alloc::buddy_alloc::BuddyAlloc

pub struct BuddyAlloc { /* private fields */ }

Implementations

impl BuddyAlloc

pub unsafe fn new(param: BuddyAllocParam) -> Self

Safety

The base_addr..(base_addr + len) must be allocated before using, and must guarantee no others write to the memory range, to avoid undefined behaviors. The new function panic if memory space not enough for initialize BuddyAlloc.

pub fn malloc(&mut self, nbytes: usize) -> *mut u8

pub fn free(&mut self, p: *mut u8)

pub fn available_bytes(&self) -> usize

Returns the bytes currently available for allocation. Note due to the buddy allocation algorithm, the available bytes can’t be allocated at once. https://github.com/jjyr/buddy-alloc/issues/7