pub fn seal_len(buf: &mut [u8], len: usize)Expand description
Stores len, which is what publishes a record.
Separate from RecordHeader::fill so that the release store in the log is
visibly the last thing that happens. The caller does the fence.
ยงPanics
If len is zero, because zero is the end of log sentinel and a record of
length zero would end the log at itself.