* fix: Add some more stats to basic status page of TUI (disk usage, chain timestamp, tx pool size)
* chore: add latest header timestamp to TUI
* fix: calculate total disk usage of database to show in TUI
* wip
* exhaustive match
* write with fixed v1 strategy when writing for hashing
* local protocol version is 2
* cleanup "size" tests that exercise v1 vs v2 vs default protocol versions
* add proto version to Connected! log msg
* cleanup docs
* negotiate protocol version min(local, peer) when doing hand/shake
* Optimize POW read
This functionality is used to deserialize header (from network or from
DB), it was taking up to 40% cpu time during initial header sync. This
PR brings it down to 3-4%. Function read_number would look better as
closure, unfortunately the compliler doesn't inline it in this case, so
it would be 2x slower.
* Remove unused code
To convert option to error we generate an error message. In some places
it contains header or block hash code or other data which is costly to
produce. So during the initial header sync we spend 12% of all time on
generating those messages (in 99% cases we don't use it). This PR
introduces a lazy generation of error messages which completely
eliminates CPU load during the header sync.
* wip
* sync sort of works now
* get rid of the deadlock during compaction
there is *always* a deadlock in there when we make changes like this...
* cleanup how we rebuild the sync MMR on init
* cleanup rewind logic
* roll the "fix invalid root" changes into this PR
* move rebuild_height_pos_index into txhashset
and pass in header_pmmr for header lookups
* cleanup and remember to setup sync head on init
* cleanup unnecessary ref muts
* rebuild_height_pos_index when writing txhashset
* use head (not header_head) when rewinding to find fork point for full blocks
* get rid of shortcut when nothing to rewind - always something to rewind
* schnorr signature batch verification
* Split the fee and lock_height verification out from the batch signature verification
* Remove the new added fee_height_verify to comply with #2859
* fix: the last n could not be leaf?
* Kernel lookup api
* Min and max height parameters, scan backwards
* Return null instead of 404 if kernel not found
* Return TxKernel instead of TxKernelPrintable
* Update description of KernelHandler
* store both mmr index and block height into database for output
* rustfmt
* fix: mmr position is 1-based instead of 0-based
* (Hash, u64, u64) deserves a type
