Republish unconfirmed blocks with delay

[SergiySW]

100 ms by default
25 ms for RPC republish

[rkeene]

This looks good to me !

[PlasmaPower]

I'm a bit want of more of these gradual broadcast systems. If we confirm it helps, then LGTM though.

[argakiig]

Lgtm as well, I like it

[rkeene]

/workspace/rai/node/node.cpp: In member function 'void rai::active_transactions::announce_loop()':
/workspace/rai/node/node.cpp:4023:95: error: 'broadcast_interval_ms' was not declared in this scope
   condition.wait_for (lock, std::chrono::milliseconds (announce_interval_ms + roots.size () * broadcast_interval_ms));

[SergiySW]

/workspace/rai/node/node.cpp: In member function 'void rai::active_transactions::announce_loop()':
/workspace/rai/node/node.cpp:4023:95: error: 'broadcast_interval_ms' was not declared in this scope
   condition.wait_for (lock, std::chrono::milliseconds (announce_interval_ms + roots.size () * broadcast_interval_ms));

Fixed