multi: Fix several misspellings in the comments. #248
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This implements the wire protocol encoding portion of a new sendheaders message as described by BIP0130. It purpose is to request that a peer sends header commands instead of inv commands when announcing new blocks. This includes a protocol version bump to 70012 and a wire version bump to 0.4.0. Note that this does not implement logic to handle the command in btcd, rather it only makes the command available at the wire protocol level. A future commit which honors the command and therefore provides full BIP0130 support is still required.
This commit does not change functionality. It makes the creation of inbound and outbound peers more homogeneous. As a result the Start method of peer was removed as it was found not to be necessary. This is the first of several pull requests/commits designed to make the peer public API and internals less complex.
This updates a couple of logging statements to use the serverPeer instance instead of the embedded peer.Peer so they are consistent with all of the other log statements.
Change 'opcodeReserved' to 'opcodeInvalid'
This commit improves and corrects a few comments in txscript to ensure they match reality.
Dynamic ban scores consist of a persistent and a decaying component. The persistent score can be used to create simple additive banning policies simlar to those found in other bitcoin node implementations. The decaying score enables the creation of evasive logic which handles misbehaving peers (especially application layer DoS attacks) gracefully by disconnecting and banning peers attempting various kinds of flooding. Dynamic ban scores allow these two approaches to be used in tandem. This pull request includes the following: - Dynamic ban score type & functions, with tests for core functionality - Ban score of connected peers can be queried via rpc (getpeerinfo) - Example policy with decaying score increments on mempool and getdata - Logging of misbehavior once half of the ban threshold is reached - Banning logic can be disabled via configuration (enabled by default) - User defined ban threshold can be set via configuration
This removes the intermediate transaction log that was introduced as a part of the database cache as a workaround for leveldb batches causing massive memory usage spikes in favor of the recently introduced leveldb transaction interface which no longer has the memory usage issues. This approach is preferred because it can avoid the extra memory needed for the transaction log and therefore all of the intermediate states as well. As a result, the default cache size has been doubled since it equals roughly the same amount of overall memory usage and the flush interval has been raised as well.
This updates the findcheckpoint utility to work when there are not already any checkpoints. This doesn't really matter for Bitcoin at the current time, but if a new testnet is created it will not have any checkpoints to start with and this change also means the utility can work for alts. While here, switch a couple of error prints to ensure they contain a final newline.
This commit corrects several typos in the comments found by misspell.
Upstream commit 383ed04.
Upstream commit ae00fff.
Upstream commit 73d3532.
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Contains the following upstream commits:
In addition to merging the fixes in the commits, this also fixes a few more misspellings that were introduced in the new Decred code.