pub unsafe fn madvise(
addr: *mut c_void,
len: usize,
advice: Advice
) -> Result<()>Available on crate feature
mm only.Expand description
posix_madvise(addr, len, advice)—Declares an expected access pattern
for a memory-mapped file.
Safety
addr must be a valid pointer to memory that is appropriate to
call posix_madvise on. Some forms of advice may mutate the memory
or evoke a variety of side-effects on the mapping and/or the file.