#[unsafe(no_mangle)]pub unsafe extern "C" fn cove_free(ptr: *mut u8, len: usize)Expand description
Releases a block cove_alloc answered, or an answer block one of the
entry points answered.
For an answer block, len is the four-byte prefix plus the length it
holds — the JavaScript side has both numbers by the time it decodes the
payload, so asking it for the total is cheaper than storing the total here.
§Safety
ptr must have come from cove_alloc or from an entry point of this
module, len must be the size that block was created with, and the block
must not be freed twice.