Previously, Add() would return true if the function created a new
AddressInfo object, even if that object could not be successfully
entered into the new table and was deleted. That would happen if the new
table position was already taken and the existing entry could not be
removed.
Instead, return true if the new AddressInfo object is successfully
entered into the new table. This fixes a bug in the "Added %i addresses"
log, which would not always accurately log how many addresses had been
added.
> [addrman] Add doxygen comment to AddrMan::Add()
>
> Does not document the return value since we're going to fix the
> semantics in a future commit.
https://github.com/bitcoin/bitcoin/pull/23380/commits/e58598e833d5737900fe3c4369e26f2a08166892
> [addrman] Rename Add_() to AddSingle()
https://github.com/bitcoin/bitcoin/pull/23380/commits/2658eb6d68460272deefb3fcc653b03f6ec6e7cf
> [addrman] Add Add_() inner function, fix Add() return semantics
>
> Previously, Add() would return true if the function created a new
> AddressInfo object, even if that object could not be successfully
> entered into the new table and was deleted. That would happen if the new
> table position was already taken and the existing entry could not be
> removed.
>
> Instead, return true if the new AddressInfo object is successfully
> entered into the new table. This fixes a bug in the "Added %i addresses"
> log, which would not always accurately log how many addresses had been
> added.
>
> p2p_addrv2_relay.py and p2p_addr_relay.py need to be updated since they
> were incorrectly asserting on the buggy log (assuming that addresses are
> added to addrman, when there could in fact be new table position
> collisions that prevent some of those address records from being added).
>
https://github.com/bitcoin/bitcoin/pull/23380/commits/2095df7b7bfcb9ab0c5710a93112f7f341e753c9
> [MOVEONLY] reorder functions in addrman_impl.h and addrman.cpp
>
> Keep the internal {Function}_() functions grouped together.
>
> Review with `git diff --color-moved=dimmed-zebra`
https://github.com/bitcoin/bitcoin/pull/23380/commits/61ec0539b26a902a41a2602187a71f9dba3c6935
This is a backport of core#23380
Depends on D15086