Merge bitcoin/bitcoin#22872: log: improve checkaddrman logging with duration in milliseconds

22b44fc696dc1078c40d17e2d497c74c7b4ae750 p2p: improve checkaddrman logging with duration in milliseconds (Jon Atack)
ec65bed00ee2e403e39b3c5977caf4abd31ccc87 log, timer: add LOG_TIME_MILLIS_WITH_CATEGORY_MSG_ONCE macro (Jon Atack)
325da75a5396f3161a6eade74b349105ed5722ab log, timer: allow not repeating log message on completion (Jon Atack)

Pull request description:

  This patch:
  - updates the `logging/timer.h::Timer` class to allow not repeating the log message on completion
  - adds a `LOG_TIME_MILLIS_WITH_CATEGORY_MSG_ONCE` macro that prints the descriptive message when logging the start but not when logging the completion
  - updates the checkaddrman logging to log the duration, and renames the function like the `-checkaddrman` configuration option in order to prefix every log message with `CheckAddrman` instead of the longer, less pleasant, and different-from-checkaddrman `ForceCheckAddrman` (the Doxygen documentation on the function already makes clear that it is unaffected by `m_consistency_check_ratio`).

  before
  ```
  2021-09-21T18:42:50Z [opencon] Addrman checks started: new 64864, tried 1690, total 66554
  2021-09-21T18:42:50Z [opencon] Addrman checks completed successfully
  ```

  after
  ```
  2021-09-21T18:42:50Z [opencon] CheckAddrman: new 64864, tried 1690, total 66554 started
  2021-09-21T18:42:50Z [opencon] CheckAddrman: completed (76.21ms)
  ```

  To test, build and run bitcoind with `-debug=addrman -checkaddrman=<n>` for a value of `n` in the range of, say, 10 to 40.

ACKs for top commit:
  laanwj:
    Code review ACK 22b44fc696dc1078c40d17e2d497c74c7b4ae750

Tree-SHA512: 658c0dfaaa9d07092e2418f2d05007c58cc35be6593f22b3c592ce793334a885dd92dacc46bdeddc9d37939cf11174660a094c07c0fa117fbb282953aa45a94d

1 files changed, 7 insertions, 5 deletions

diff --git a/src/addrman.cpp b/src/addrman.cpp
index 825b5239c8..8a0433c40d 100644
--- a/src/addrman.cpp
+++ b/src/addrman.cpp
@@ -7,6 +7,8 @@
 #include <addrman_impl.h>
 
 #include <hash.h>
+#include <logging.h>
+#include <logging/timer.h>
 #include <netaddress.h>
 #include <protocol.h>
 #include <random.h>
@@ -387,7 +389,7 @@ void AddrManImpl::Unserialize(Stream& s_)
         LogPrint(BCLog::ADDRMAN, "addrman lost %i new and %i tried addresses due to collisions or invalid addresses\n", nLostUnk, nLost);
     }
 
-    const int check_code{ForceCheckAddrman()};
+    const int check_code{CheckAddrman()};
     if (check_code != 0) {
         throw std::ios_base::failure(strprintf(
             "Corrupt data. Consistency check failed with code %s",
@@ -937,18 +939,19 @@ void AddrManImpl::Check() const
     if (m_consistency_check_ratio == 0) return;
     if (insecure_rand.randrange(m_consistency_check_ratio) >= 1) return;
 
-    const int err{ForceCheckAddrman()};
+    const int err{CheckAddrman()};
     if (err) {
         LogPrintf("ADDRMAN CONSISTENCY CHECK FAILED!!! err=%i\n", err);
         assert(false);
     }
 }
 
-int AddrManImpl::ForceCheckAddrman() const
+int AddrManImpl::CheckAddrman() const
 {
     AssertLockHeld(cs);
 
-    LogPrint(BCLog::ADDRMAN, "Addrman checks started: new %i, tried %i, total %u\n", nNew, nTried, vRandom.size());
+    LOG_TIME_MILLIS_WITH_CATEGORY_MSG_ONCE(
+        strprintf("new %i, tried %i, total %u", nNew, nTried, vRandom.size()), BCLog::ADDRMAN);
 
     std::unordered_set<int> setTried;
     std::unordered_map<int, int> mapNew;
@@ -1028,7 +1031,6 @@ int AddrManImpl::ForceCheckAddrman() const
     if (nKey.IsNull())
         return -16;
 
-    LogPrint(BCLog::ADDRMAN, "Addrman checks completed successfully\n");
     return 0;
 }