This does the minimum work necessary to refactor the block template
generation code into the mining package. The idea is that separating
this code into the mining package will greatly improve its testability,
allow independent benchmarking and profiling, and open up some
interesting opportunities for future development related to mining.
There are some areas related to policy and other configuration that
could be further refactored, however it is better to do that in future
commits in order to keep the changeset as small as possible during this
refactor.
Overview of the major changes:
- Move mining.go -> mining/mining.go
- Move mining_test.go -> mining/mining_test.go
- Add logger to mining package
- Update the MINR subsystem to use the new mining package logger
- Export CoinbaseFlags from the mining package
- BlkTmplGenerator is now mining.BlkTmplGenerator
- Update all references to the mining code to use the package
This improves the tests of the priority queue to include the secondary
sort ordering as well as adds some manual entries to ensure the edge
conditions are properly tested.
This also brings the priority queue test coverage up to 100%.
This adds a test to ensure the priority queue works properly both for
sorting by fee per KB and priorities.
Thanks to @ceejep for the original test code and idea which was
subsequently modified and cleaned up a bit to the code here.
