partial bitcoin#18923: Never schedule MaybeCompactWalletDB when -flushwallet is off

Excludes faf8401c195f52470d1ca6e2c94cb3820e57ee41 and fa28a618972911239a119248ab1194702a5c36d8

src/qt/test/apptests.cpp

@@ -63,9 +63,10 @@ void AppTests::appTests()
     }
 #endif
 
-    BasicTestingSetup test{CBaseChainParams::REGTEST}; // Create a temp data directory to backup the gui settings to
-    ECC_Stop(); // Already started by the common test setup, so stop it to avoid interference
-    LogInstance().DisconnectTestLogger();
+    fs::create_directories([] {
+        BasicTestingSetup test{CBaseChainParams::REGTEST}; // Create a temp data directory to backup the gui settings to
+        return GetDataDir() / "blocks";
+    }());
 
     m_app.parameterSetup();
     GUIUtil::loadFonts();
@@ -83,6 +84,7 @@ void AppTests::appTests()
     m_app.exec();
 
     // Reset global state to avoid interfering with later tests.
+    LogInstance().DisconnectTestLogger();
     AbortShutdown();
     UnloadBlockIndex();
 }

src/wallet/bdb.cpp

@@ -614,8 +614,8 @@ bool BerkeleyDatabase::PeriodicFlush()
     if (!lockDb) return false;
 
     // Don't flush if any databases are in use
-    for (auto it = env->mapFileUseCount.begin() ; it != env->mapFileUseCount.end(); it++) {
-        if ((*it).second > 0) return false;
+    for (const auto& use_count : env->mapFileUseCount) {
+        if (use_count.second > 0) return false;
     }
 
     // Don't flush if there haven't been any batch writes for this database.

src/wallet/load.cpp

@@ -14,6 +14,7 @@
 #include <util/system.h>
 #include <util/translation.h>
 #include <wallet/wallet.h>
+#include <wallet/walletdb.h>
 
 bool VerifyWallets(interfaces::Chain& chain, const std::vector<std::string>& wallet_files)
 {
@@ -92,7 +93,9 @@ void StartWallets(CScheduler& scheduler)
     }
 
     // Schedule periodic wallet flushes and tx rebroadcasts
-    scheduler.scheduleEvery(MaybeCompactWalletDB, 500);
+    if (gArgs.GetBoolArg("-flushwallet", DEFAULT_FLUSHWALLET)) {
+        scheduler.scheduleEvery(MaybeCompactWalletDB, 500);
+    }
     scheduler.scheduleEvery(MaybeResendWalletTxs, 1000);
 }
 

src/wallet/walletdb.cpp

@@ -737,9 +737,6 @@ void MaybeCompactWalletDB()
     if (fOneThread.exchange(true)) {
         return;
     }
-    if (!gArgs.GetBoolArg("-flushwallet", DEFAULT_FLUSHWALLET)) {
-        return;
-    }
 
     for (const std::shared_ptr<CWallet>& pwallet : GetWallets()) {
         WalletDatabase& dbh = pwallet->GetDBHandle();