Struct malloc_freq::ProfAllocator

pub struct ProfAllocator;

Allocator that collects statistics about allocations performed by the program and dumps this statistics to the disk on exit. Use the global_allocator attribute to enable this allocator in your program:

use malloc_freq::ProfAllocator;

#[global_allocator]
static GLOBAL: ProfAllocator = ProfAllocator;

fn main() {}

Implementations

impl ProfAllocator

pub unsafe fn malloc(size: size_t) -> *mut c_void

A replacement malloc() implementation that records each malloc call in the profile. When loaded via LD_PRELOAD, [lib_malloc_freq] redirects malloc calls to this method.

Safety

This method internally uses libc::malloc, which is unsafe extern "C".

Trait Implementations

impl GlobalAlloc for ProfAllocator

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

Allocate memory as described by the given layout.

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

Deallocate 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

Shrink or grow a block of memory to the given new_size. The block is described by the given ptr pointer and layout.