376086fc5a
This makes a number of changes: - Get rid of the verification_progress argument in the node interface NotifyHeaderTip (it was always 0.0). - Instead of passing a CBlockIndex* in the UI interface's NotifyHeaderTip, send separate height, timestamp fields. This is becuase in headers presync, no actual CBlockIndex object is available. - Add a bool presync argument to both of the above, to identify signals pertaining to the first headers sync phase.
src/node/
The src/node/ directory contains code that needs to access node state
(state in CChain, CBlockIndex, CCoinsView, CTxMemPool, and similar
classes).
Code in src/node/ is meant to be segregated from code in
src/wallet/ and src/qt/, to ensure wallet and GUI
code changes don't interfere with node operation, to allow wallet and GUI code
to run in separate processes, and to perhaps eventually allow wallet and GUI
code to be maintained in separate source repositories.
As a rule of thumb, code in one of the src/node/,
src/wallet/, or src/qt/ directories should avoid
calling code in the other directories directly, and only invoke it indirectly
through the more limited src/interfaces/ classes.
This directory is at the moment
sparsely populated. Eventually more substantial files like
src/validation.cpp and
src/txmempool.cpp might be moved there.