Struct TrackingAllocator 

pub struct TrackingAllocator<A = System> { /* private fields */ }

An allocator that tracks allocations and deallocations.

The allocator works by tagging each allocation with a group ID in the first 8 bytes of the allocation.

Allocations are first tracked for each thread locally then periodically reported to the global tracker via flush_thread_statistics.

The allocations and deallocations are only reported if a group ID is set, however the tagging is always done, so a tiny memory and bookkeeping overhead is incurred.

Implementations

impl<A> TrackingAllocator<A>

pub const fn new(inner: A) -> Self

Create a new tracking allocator.

impl TrackingAllocator<System>

pub const fn system() -> Self

Create a new tracking allocator that uses the system allocator.

Trait Implementations

impl<A: GlobalAlloc> GlobalAlloc for TrackingAllocator<A>

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

Allocates memory as described by the given layout.

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

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

unsafe fn alloc_zeroed(&self, object_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, object_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.