Function rustix::mm::mlock_with
source · pub unsafe fn mlock_with(
ptr: *mut c_void,
len: usize,
flags: MlockFlags,
) -> Result<()>
Expand description
mlock2(ptr, len, flags)
—Lock memory into RAM, with flags.
mlock_with
is the same as mlock
but adds an additional flags operand.
Some implementations implicitly round the memory region out to the nearest page boundaries, so this function may lock more memory than explicitly requested if the memory isn’t page-aligned.
§Safety
The range of memory starting at ptr
, rounded down to the applicable page
boundary, and extending for len
bytes, rounded up to the applicable page
size, must be valid to read with ptr
’s provenance.