Crate snmalloc_sys

Functions

calloc^⚠

Allocate count items of size length each. Returns null if count * size overflows or on out-of-memory. All items are initialized to zero.

free^⚠

Free previously allocated memory. The pointer p must have been allocated before (or be null).

malloc^⚠

Allocate size bytes. Returns pointer to the allocated memory or null if out of memory. Returns a unique pointer if called with size 0.

realloc^⚠

Re-allocate memory to newsize bytes. Return pointer to the allocated memory or null if out of memory. If null is returned, the pointer p is not freed. Otherwise the original pointer is either freed or returned as the reallocated result (in case it fits in-place with the new size). If p is null, it behaves as [sn_malloc]. If newsize is larger than the original size allocated for p, the bytes after size are uninitialized.

sn_rust_alloc^⚠

Allocate the memory with the given alignment and size. On success, it returns a pointer pointing to the required memory address. On failure, it returns a null pointer. The client must assure the following things:

sn_rust_alloc_zeroed^⚠

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

sn_rust_dealloc^⚠

De-allocate the memory at the given address with the given alignment and size. The client must assure the following things:

sn_rust_realloc^⚠

Re-allocate the memory at the given address with the given alignment and size. On success, it returns a pointer pointing to the required memory address. The memory content within the new_size will remains the same as previous. On failure, it returns a null pointer. In this situation, the previous memory is not returned to the allocator. The client must assure the following things:

sn_rust_usable_size^⚠

Return the available bytes in a memory block.