Merge #15051: Tests: IsReachable is the inverse of IsLimited (DRY). Includes unit tests

6dc4593db1ccfb8745b2daa42f457981ae08dba9 IsReachable is the inverse of IsLimited (DRY). Includes unit tests (marcaiaf)

Pull request description:

  IsReachable is the inverse of IsLimited, but the implementation is duplicated (DRY)

  - Changed the implementation accordingly.
  - Added unit tests to document behavior and relationship
  - My modification in net.cpp  applies only to IsReachable.
  - Applied clang-format-diffpy

  Created new pull request to avoid the mess with:
  https://github.com/bitcoin/bitcoin/pull/15044

  Checked with supposedly conflicting PRs mentioned in the old PR. No conflicts with the specific changes in this PR.

Tree-SHA512: b132dec6cc2c788ebe4f63f228d78f441614e156743b17adebc990de0180a5872874d2724c86eeaa470b4521918bd137b0e33ebcaae77c5efc1f0d56104f6c87

1 files changed, 2 insertions, 4 deletions

diff --git a/src/net.cpp b/src/net.cpp
index 03ee7af5e..86e522583 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -295,15 +295,13 @@ bool IsLocal(const CService& addr)
 /** check whether a given network is one we can probably connect to */
 bool IsReachable(enum Network net)
 {
-    LOCK(cs_mapLocalHost);
-    return !vfLimited[net];
+    return !IsLimited(net);
 }
 
 /** check whether a given address is in a network we can probably connect to */
 bool IsReachable(const CNetAddr& addr)
 {
-    enum Network net = addr.GetNetwork();
-    return IsReachable(net);
+    return IsReachable(addr.GetNetwork());
 }