Allows easy integration with mining software that expects either
a "_target" (Namecoin) or a "target" (Dogecoin) field when
creating auxpow blocks using the -rpcnamecoinapi startup arg.
This saves pools effort in integrating the API they need whenever
a new Dogecoin Core release comes out.
- RPC caching source cherry-picked from: btccom@f4b613b2
- Adds addl test scenarios to createauxblock.py tests
Allows pool operators to run multiple sub-pools with different
target addresses from a single dogecoind instance. Without this
enhancement, subsequent calls to createauxblock with differing
addresses ignore the address given and instead just return the
block containing the address that initially triggered generation
of the cached block. This can quickly lead to unpredictable
results as race scenarios between sub-pools come into play.
Note that, like with getauxblock, the cache only resets on aux
block creation, not submission, so submitauxblock will accept
multiple submissions at the same height until createauxblock is
called, resulting in chaintip forks.
Co-Authored-By: leezhen <jasper.li@bitmain.com>
