* first pass at peers iter cleanup
* more flexible peer with diff lookups
* PeersIter with impl Iterator
* sync against outbound peers
reorder peers filters so expensive filters come later
* filter peers by capabilities during sync
* prefer outbound peers with high total difficulty
* with_difficulty now takes a fn to allow more flexible comparisons based on difficulty
* rename peers_iter() -> iter()
* wip
* big refactor, regretting doing this now
* PeerAddr everywhere
* cleanup
* fixup server tests
* peers api working for GET, POST is still WIP
* we can now ban/unban peers by ip only (port optional)
* ban a peer with highest height but can't send us the proper headers
* reset self.stalling_ts if syncing goes well
* fix: switch to peers.ban_peer() instead of peer.set_banned()
* split horizon into two explicit values for cut through and txhashset request
* let node which has 2-7 days of history be able to handle forks larger than 2 days
* add test simulate_long_fork
* add pause/resume feature on p2p for tests
* refactor the state_sync
* ignore the test case simulate_long_fork for normal Travis-CI
* refactor function check_txhashset_needed to be shared with body_sync
* fix: state TxHashsetDone should allow header sync
* Cleanup syncer and sync header (locator)
* Simplify body sync
* Remove duplicate head in locator, add greater case in close_enough
* Various sync small fixes and tuning after testing
* More close_enough tests and related minor fixes
* Add a struct to encapsulate common references and avoid passing
them around on every function.
* Consolidate `skip_sync_wait` and `awaiting_peers` in an
additional sync status.
* New awaiting peer status is initial too
* Replace logging backend to flexi-logger and add log rotation
* Changed flexi_logger to log4rs
* Disable logging level filtering in Root logger
* Support different logging levels for file and stdout
* Don't log messages from modules other than Grin-related
* Fix formatting
* Place backed up compressed log copies into log file directory
* Increase default log file size to 16 MiB
* Add comment to config file on log_max_size option
* header MMR in use within txhashset itself
works with fast sync
not yet in place for initial header sync
* add the (currently unused) sync_head mmr
* use sync MMR during fast sync
rebuild header MMR after we validate full txhashset after download
* support missing header MMR (rebuild as necessary) for legacy nodes
* rustfmt
* comments/docs
* rustfmt
* cleanup DBBackend
* cleanup DBBackend
* cleanup
* rename to HashOnly
* rustfmt
* cleanup backend.append()
* simply pmmr append api
no need to pass position when appending
* cleanup
* simplify vec_backend to match simpler append api
* rustfmt
* docs/comments
* rustfmt
* cleanup
* get rid of RwLock around peer instances
* rustfmt
* rename stuff to live_info
* rustfmt
* serialize into PeerInfoDisplay
limit live_info write lock to peer_info.update()
rename to PeerLiveInfo
* simplify broadcast logic a bit more
connected peers are connected by definition
* return true/false on broadcast so we can send to more peers
* rustfmt
* fix p2p and server tests for PeerInfoDisplay
* commit
Antioch Peverell