Struct MemPool

pub struct MemPool<A: Allocator = PoolAlloc>(/* private fields */);

单线程分配资源，不支持Sync, 但只是Send. 因为已分配资源析构的时候并不会访问Pool 所有内存都在Pool析构的时候集中释放，不存在多线程访问的情况

Implementations

impl Pool<PoolAlloc>

pub fn new(page_size: usize) -> Self

pub fn new_boxed(page_size: usize) -> Result<BoxedPool>

impl<A: Allocator> Pool<A>

pub fn reset_boxed(boxed: Boxed<'_, Self, NullAlloc>) -> BoxedPool<A>

pub fn reset(self) -> Self

impl<A: Allocator> Pool<A>

pub unsafe fn from_raw(raw: *mut Self) -> BoxedPool<A>

Safety

使用者保证raw一定是从leak返回的指针

pub fn stat(&self) -> Stat

pub fn new_in(alloc: A, page_size: usize) -> Self

pub fn add_page_buf(&self, buf: &'static [u8])

pub fn new_boxed_in<'a>( alloc: A, page_size: usize, ) -> Result<Boxed<'a, Self, NullAlloc>>

Trait Implementations

impl<A: Allocator> Allocator for Pool<A>

unsafe fn alloc_buf<F>(&self, layout: Layout, f: F) -> Result<NonNull<[u8]>>

where F: FnOnce(NonNull<[u8]>) -> Result<()>,

Safety

unsafe fn free_buf(&self, ptr: NonNull<[u8]>, layout: Layout)

Safety

impl<A: Allocator> GlobalAlloc for Pool<A>

unsafe fn alloc(&self, layout: Layout) -> *mut u8

Allocates memory as described by the given layout.

unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout)

Deallocates the block of memory at the given ptr pointer with the given layout.

unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8

Behaves like alloc, but also ensures that the contents are set to zero before being returned.

unsafe fn realloc( &self, ptr: *mut u8, layout: Layout, new_size: usize, ) -> *mut u8

Shrinks or grows a block of memory to the given new_size in bytes. The block is described by the given ptr pointer and layout.

impl<A: Allocator> Pool for Pool<A>

impl<A: Allocator + Send> Send for Pool<A>