nix::sys::mman

Function mremap

Source 
pub unsafe fn mremap(
    addr: *mut c_void,
    old_size: size_t,
    new_size: size_t,
    flags: MRemapFlags,
    new_address: Option<*mut c_void>,
) -> Result<*mut 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.