nix::sys::mman

Function mremap

source 
pub unsafe fn mremap(
    addr: NonNull<c_void>,
    old_size: size_t,
    new_size: size_t,
    flags: MRemapFlags,
    new_address: Option<NonNull<c_void>>,
) -> Result<NonNull<c_void>>
Expand description

Expands (or shrinks) an existing memory mapping, potentially moving it at the same time.

ยงSafety

See the mremap(2) man page for detailed requirements.