Struct jemalloc::Jemalloc

pub struct Jemalloc;

Trait Implementations

impl Clone for Jemalloc

fn clone(&self) -> Jemalloc

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Jemalloc

impl Default for Jemalloc

fn default() -> Jemalloc

Returns the "default value" for a type.

impl Debug for Jemalloc

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Alloc for Jemalloc

unsafe fn alloc(&mut self, l: Layout) -> Result<NonNull<u8>, AllocErr>

Returns a pointer meeting the size and alignment guarantees of layout.

unsafe fn alloc_zeroed(&mut self, l: Layout) -> Result<NonNull<u8>, AllocErr>

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

unsafe fn realloc(     &mut self,     ptr: NonNull<u8>,     old_l: Layout,     new_size: usize ) -> Result<NonNull<u8>, AllocErr>

Returns a pointer suitable for holding data described by new_layout, meeting its size and alignment guarantees. To accomplish this, this may extend or shrink the allocation referenced by ptr to fit new_layout.

unsafe fn dealloc(&mut self, ptr: NonNull<u8>, l: Layout)

Deallocate the memory referenced by ptr.

unsafe fn resize_in_place(     &mut self,     ptr: NonNull<u8>,     old_l: Layout,     new_size: usize ) -> Result<(), CannotReallocInPlace>

Attempts to resize the allocation referenced by ptr to fit new_layout.

fn usable_size(&self, l: Layout) -> (usize, usize)

Returns bounds on the guaranteed usable size of a successful allocation created with the specified layout.

unsafe fn alloc_excess(&mut self, layout: Layout) -> Result<Excess, AllocErr>

Behaves like alloc, but also returns the whole size of the returned block. For some layout inputs, like arrays, this may include extra storage usable for additional data.

unsafe fn realloc_excess(     &mut self,     ptr: NonNull<u8>,     layout: Layout,     new_size: usize ) -> Result<Excess, AllocErr>

Behaves like realloc, but also returns the whole size of the returned block. For some layout inputs, like arrays, this may include extra storage usable for additional data.

fn alloc_one<T>(&mut self) -> Result<Unique<T>, AllocErr>

Allocates a block suitable for holding an instance of T.

unsafe fn dealloc_one<T>(&mut self, ptr: Unique<T>)

Deallocates a block suitable for holding an instance of T.

fn alloc_array<T>(&mut self, n: usize) -> Result<(Unique<T>, usize), AllocErr>

Allocates a block suitable for holding n instances of T.

unsafe fn realloc_array<T>(     &mut self,     ptr: Unique<T>,     n_old: usize,     n_new: usize ) -> Result<(Unique<T>, usize), AllocErr>

Reallocates a block previously suitable for holding n_old instances of T, returning a block suitable for holding n_new instances of T.

unsafe fn dealloc_array<T>(     &mut self,     ptr: Unique<T>,     n: usize ) -> Result<(), AllocErr>

Deallocates a block suitable for holding n instances of T.