f52b6b2d9f net: split CConnman::SocketHandler() (Vasil Dimov)
c7eb19ec83 style: remove unnecessary braces (Vasil Dimov)
664ac22c53 net: keep reference to each node during socket wait (Vasil Dimov)
75e8bf55f5 net: dedup and RAII-fy the creation of a copy of CConnman::vNodes (Vasil Dimov)
Pull request description:
_This is a piece of https://github.com/bitcoin/bitcoin/pull/21878, chopped off to ease review._
The following pattern was duplicated in CConnman:
```cpp
lock
create a copy of vNodes, add a reference to each one
unlock
... use the copy ...
lock
release each node from the copy
unlock
```
Put that code in a RAII helper that reduces it to:
```cpp
create snapshot "snap"
... use the copy ...
// release happens when "snap" goes out of scope
ACKs for top commit:
jonatack:
ACK f52b6b2d9f changes since last review are reordered commits, removing an unneeded local variable, and code formatting and documentation improvements
LarryRuane:
code review ACK f52b6b2d9f
promag:
Code review ACK f52b6b2d9f, only format changes and comment tweaks since last review.
Tree-SHA512: 5ead7b4c641ebe5b215e7baeb7bc0cdab2a588b2871d9a343a1d518535c55c0353d4e46de663f41513cdcc79262938ccea3232f6d5166570fc2230286c985f68
64059b78f5