Previously addnodes were in competition with outbound connections
for access to the eight outbound slots.
One result of this is that frequently a node with several addnode
configured peers would end up connected to none of them, because
while the addnode loop was in its two minute sleep the automatic
connection logic would fill any free slots with random peers.
This is particularly unwelcome to users trying to maintain links
to specific nodes for fast block relay or purposes.
Another result is that a group of nine or more nodes which are
have addnode configured towards each other can become partitioned
from the public network.
This commit introduces a new limit of eight connections just for
addnode peers which is not subject to any of the other connection
limitations (including maxconnections).
The choice of eight is sufficient so that under no condition would
a user find themselves connected to fewer addnoded peers than
previously. It is also low enough that users who are confused
about the significance of more connections and have gotten too
copy-and-paste happy will not consume more than twice the slot
usage of a typical user.
Any additional load on the network resulting from this will likely
be offset by a reduction in users applying even more wasteful
workaround for the prior behavior.
The retry delays are reduced to avoid nodes sitting around without
their added peers up, but are still sufficient to prevent overly
aggressive repeated connections. The reduced delays also make
the system much more responsive to the addnode RPC.
Ban-disconnects are also exempted for peers added via addnode since
the outbound addnode logic ignores bans. Previously it would ban
an addnode then immediately reconnect to it.
A minor change was also made to CSemaphoreGrant so that it is
possible to re-acquire via an object whos grant was moved.
05a55a6 Added EVENT_CFLAGS to test makefile to explicitly include libevent headers. (Karl-Johan Alm)
280a559 Added some simple tests for the RAII-style events. (Karl-Johan Alm)
7f7f102 Switched bitcoin-cli.cpp to use RAII unique pointers with deleters. (Karl-Johan Alm)
e5534d2 Added std::unique_ptr<> wrappers with deleters for libevent modules. (Karl-Johan Alm)
We were marking coins FRESH before being sure they were not overwriting dirty undo data. This condition was never reached in existing code because undo data was always flushed before UpdateCoins was called with new transactions, but could have been exposed in an otherwise safe refactor.
Clarify in the comments the assumptions made in ModifyNewCoins.
Add ability to undo transactions to UpdateCoins unit test.
Thanks to Russ Yanofsky for suggestion on how to make logic clearer and fixing up the ccoins_modify_new test cases.
f8d43b8 Avoid rollingMinimumFeeRate never being able to decay below half (Alex Morcos)
eab8e1b fix a bug if the min fee is 0 for FeeFilterRounder (Alex Morcos)
- Drop the interruption point directly after the pnode allocation. This would
be leaky if hit.
- Rearrange thread creation so that the socket handler comes first
5394b39 Wallet: Split main logic from InitLoadWallet into CreateWalletFromFile (Luke Dashjr)
fb0c934 Wallet: Let the interval-flushing thread figure out the filename (Luke Dashjr)
8562792 GUI/RPCConsole: Include importmulti in history sensitive-command filter (Luke Dashjr)
ff77faf Qt/RPCConsole: Use RPCParseCommandLine to perform command filtering (Luke Dashjr)
a79598d Qt/Test: Make sure filtering sensitive data works correctly in nested commands (Luke Dashjr)
629cd42 Qt/RPCConsole: Teach RPCParseCommandLine how to filter out arguments to sensitive commands (Luke Dashjr)
e2d9213 Qt/RPCConsole: Make it possible to parse a command without executing it (Luke Dashjr)
1755c04 Qt/RPCConsole: Truncate filtered commands to just the command name, rather than skip it entirely in history (Luke Dashjr)
d80a006 Qt/RPCConsole: Add signmessagewithprivkey to list of commands filtered from history (Luke Dashjr)
afde12f Qt/RPCConsole: Refactor command_may_contain_sensitive_data function out of RPCConsole::on_lineEdit_returnPressed (Luke Dashjr)
de8980d Bugfix: Do not add sensitive information to history for real (Luke Dashjr)
9044908 Qt/RPCConsole: Don't store commands with potentially sensitive information in the history (Jonas Schnelli)
fc95daa Qt/RPCConsole: Save current command entry when browsing history (Jonas Schnelli)
Gregory Maxwell