This updates the tests in database/ffldb and blockchain/stake to
reference the block tests within the same module as opposed to escaping
the module to find it in the blockchain module.
This is necessary for the new test all functionality of the upcoming
go1.11 release since it individually tests each module in a separate
path and therefore it prevent the ability to use relative paths that
escape the module.
Unfortunately, this means the data had to be copied, but, but it's not a
huge amount of data, and it seems that git mostly deduplicates the data
internally.
This replaces and improves the tests for the ForceHeadReorganization
function with new tests based on the dynamic chaingen infrastructure
versus uses static test data that gets out of date as data structures
change and is much more difficult to update.
It also removes the now unused static reorgto180.bz2 test data.
The legacy ticket database, which was GOB serialized and stored on
shut down, has been removed. Ticket state information is now held in
a stake node, which acts as a modularized "black box" to contain all
information about the state of the stake system. Stake nodes are now
a component of the blockchain blockNode struct, and are updated with
them.
Stake nodes, like their internal treap primitives, are immutable
objects that are created with their connect and disconnect node
functions. The blockchain database now stores all information about
the stake state of the best node in the block database. The blockchain
makes the assumption that the stake state of the best node is known at
any given time. If the states of former blocks or sidechains must be
evaluated, this can be achieved by iterating backwards along the
blockchain from the best node, and then connecting stake nodes
iteratively if necessary.
Performance improvements with this new module are dramatic. The long
delays on start up and shut down are removed. Blockchain
synchronization time is improved approximately 5-10x on the mainnet
chain. The state of the database is atomic, so unexpected shut downs
should no longer have the ability to disrupt the chain state.
An upgrade path has been added for version 1 blockchain databases.
Users with this blockchain database will automatically update when
they start their clients.
This commit contains the entire btcchain repository along with several
changes needed to move all of the files into the blockchain directory in
order to prepare it for merging. This does NOT update btcd or any of the
other packages to use the new location as that will be done separately.
- All import paths in the old btcchain test files have been changed to
the new location
- All references to btcchain as the package name have been changed to
blockchain
