Merge #9424: Change LogAcceptCategory to use uint32_t rather than sets of strings.

6b3bb3d Change LogAcceptCategory to use uint32_t rather than sets of strings. (Gregory Maxwell)

Tree-SHA512: ebb5bcf9a7d00a32dd1390b727ff4d29330a038423611da01268d8e1d2c0229e52a1098e751d4e6db73ef4ae862e1e96d38249883fcaf12b68f55ebb01035b34

30 files changed, 377 insertions, 273 deletions

diff --git a/src/addrman.cpp b/src/addrman.cpp
index b6ab4c6305..ed9c128eb2 100644
--- a/src/addrman.cpp
+++ b/src/addrman.cpp
@@ -233,7 +233,7 @@ void CAddrMan::Good_(const CService& addr, int64_t nTime)
     if (nUBucket == -1)
         return;
 
-    LogPrint("addrman", "Moving %s to tried\n", addr.ToString());
+    LogPrint(BCLog::ADDRMAN, "Moving %s to tried\n", addr.ToString());
 
     // move nId to the tried tables
     MakeTried(info, nId);
diff --git a/src/addrman.h b/src/addrman.h
index 6e5f946bf2..f123b20b1b 100644
--- a/src/addrman.h
+++ b/src/addrman.h
@@ -442,7 +442,7 @@ public:
             }
         }
         if (nLost + nLostUnk > 0) {
-            LogPrint("addrman", "addrman lost %i new and %i tried addresses due to collisions\n", nLostUnk, nLost);
+            LogPrint(BCLog::ADDRMAN, "addrman lost %i new and %i tried addresses due to collisions\n", nLostUnk, nLost);
         }
 
         Check();
@@ -507,8 +507,9 @@ public:
         Check();
         fRet |= Add_(addr, source, nTimePenalty);
         Check();
-        if (fRet)
-            LogPrint("addrman", "Added %s from %s: %i tried, %i new\n", addr.ToStringIPPort(), source.ToString(), nTried, nNew);
+        if (fRet) {
+            LogPrint(BCLog::ADDRMAN, "Added %s from %s: %i tried, %i new\n", addr.ToStringIPPort(), source.ToString(), nTried, nNew);
+        }
         return fRet;
     }
 
@@ -521,8 +522,9 @@ public:
         for (std::vector<CAddress>::const_iterator it = vAddr.begin(); it != vAddr.end(); it++)
             nAdd += Add_(*it, source, nTimePenalty) ? 1 : 0;
         Check();
-        if (nAdd)
-            LogPrint("addrman", "Added %i addresses from %s: %i tried, %i new\n", nAdd, source.ToString(), nTried, nNew);
+        if (nAdd) {
+            LogPrint(BCLog::ADDRMAN, "Added %i addresses from %s: %i tried, %i new\n", nAdd, source.ToString(), nTried, nNew);
+        }
         return nAdd > 0;
     }
 
diff --git a/src/blockencodings.cpp b/src/blockencodings.cpp
index 90120b82eb..ee2c654980 100644
--- a/src/blockencodings.cpp
+++ b/src/blockencodings.cpp
@@ -164,7 +164,7 @@ ReadStatus PartiallyDownloadedBlock::InitData(const CBlockHeaderAndShortTxIDs& c
             break;
     }
 
-    LogPrint("cmpctblock", "Initialized PartiallyDownloadedBlock for block %s using a cmpctblock of size %lu\n", cmpctblock.header.GetHash().ToString(), GetSerializeSize(cmpctblock, SER_NETWORK, PROTOCOL_VERSION));
+    LogPrint(BCLog::CMPCTBLOCK, "Initialized PartiallyDownloadedBlock for block %s using a cmpctblock of size %lu\n", cmpctblock.header.GetHash().ToString(), GetSerializeSize(cmpctblock, SER_NETWORK, PROTOCOL_VERSION));
 
     return READ_STATUS_OK;
 }
@@ -209,10 +209,11 @@ ReadStatus PartiallyDownloadedBlock::FillBlock(CBlock& block, const std::vector<
         return READ_STATUS_CHECKBLOCK_FAILED;
     }
 
-    LogPrint("cmpctblock", "Successfully reconstructed block %s with %lu txn prefilled, %lu txn from mempool (incl at least %lu from extra pool) and %lu txn requested\n", hash.ToString(), prefilled_count, mempool_count, extra_count, vtx_missing.size());
+    LogPrint(BCLog::CMPCTBLOCK, "Successfully reconstructed block %s with %lu txn prefilled, %lu txn from mempool (incl at least %lu from extra pool) and %lu txn requested\n", hash.ToString(), prefilled_count, mempool_count, extra_count, vtx_missing.size());
     if (vtx_missing.size() < 5) {
-        for (const auto& tx : vtx_missing)
-            LogPrint("cmpctblock", "Reconstructed block %s required tx %s\n", hash.ToString(), tx->GetHash().ToString());
+        for (const auto& tx : vtx_missing) {
+            LogPrint(BCLog::CMPCTBLOCK, "Reconstructed block %s required tx %s\n", hash.ToString(), tx->GetHash().ToString());
+        }
     }
 
     return READ_STATUS_OK;
diff --git a/src/dbwrapper.cpp b/src/dbwrapper.cpp
index cd441add4b..01fcd07420 100644
--- a/src/dbwrapper.cpp
+++ b/src/dbwrapper.cpp
@@ -21,8 +21,9 @@ public:
     // This code is adapted from posix_logger.h, which is why it is using vsprintf.
     // Please do not do this in normal code
     virtual void Logv(const char * format, va_list ap) override {
-            if (!LogAcceptCategory("leveldb"))
+            if (!LogAcceptCategory(BCLog::LEVELDB)) {
                 return;
+            }
             char buffer[500];
             for (int iter = 0; iter < 2; iter++) {
                 char* base;
diff --git a/src/httprpc.cpp b/src/httprpc.cpp
index 8ac6925acd..21c64c5c83 100644
--- a/src/httprpc.cpp
+++ b/src/httprpc.cpp
@@ -233,7 +233,7 @@ static bool InitRPCAuthentication()
 
 bool StartHTTPRPC()
 {
-    LogPrint("rpc", "Starting HTTP RPC server\n");
+    LogPrint(BCLog::RPC, "Starting HTTP RPC server\n");
     if (!InitRPCAuthentication())
         return false;
 
@@ -247,12 +247,12 @@ bool StartHTTPRPC()
 
 void InterruptHTTPRPC()
 {
-    LogPrint("rpc", "Interrupting HTTP RPC server\n");
+    LogPrint(BCLog::RPC, "Interrupting HTTP RPC server\n");
 }
 
 void StopHTTPRPC()
 {
-    LogPrint("rpc", "Stopping HTTP RPC server\n");
+    LogPrint(BCLog::RPC, "Stopping HTTP RPC server\n");
     UnregisterHTTPHandler("/", true);
     if (httpRPCTimerInterface) {
         RPCUnsetTimerInterface(httpRPCTimerInterface);
diff --git a/src/httpserver.cpp b/src/httpserver.cpp
index 799de1c2cb..347433eb11 100644
--- a/src/httpserver.cpp
+++ b/src/httpserver.cpp
@@ -213,7 +213,7 @@ static bool InitHTTPAllowList()
     std::string strAllowed;
     for (const CSubNet& subnet : rpc_allow_subnets)
         strAllowed += subnet.ToString() + " ";
-    LogPrint("http", "Allowing HTTP connections from: %s\n", strAllowed);
+    LogPrint(BCLog::HTTP, "Allowing HTTP connections from: %s\n", strAllowed);
     return true;
 }
 
@@ -243,7 +243,7 @@ static void http_request_cb(struct evhttp_request* req, void* arg)
 {
     std::unique_ptr<HTTPRequest> hreq(new HTTPRequest(req));
 
-    LogPrint("http", "Received a %s request for %s from %s\n",
+    LogPrint(BCLog::HTTP, "Received a %s request for %s from %s\n",
              RequestMethodString(hreq->GetRequestMethod()), hreq->GetURI(), hreq->GetPeer().ToString());
 
     // Early address-based allow check
@@ -293,7 +293,7 @@ static void http_request_cb(struct evhttp_request* req, void* arg)
 /** Callback to reject HTTP requests after shutdown. */
 static void http_reject_request_cb(struct evhttp_request* req, void*)
 {
-    LogPrint("http", "Rejecting request while shutting down\n");
+    LogPrint(BCLog::HTTP, "Rejecting request while shutting down\n");
     evhttp_send_error(req, HTTP_SERVUNAVAIL, NULL);
 }
 
@@ -301,10 +301,10 @@ static void http_reject_request_cb(struct evhttp_request* req, void*)
 static bool ThreadHTTP(struct event_base* base, struct evhttp* http)
 {
     RenameThread("bitcoin-http");
-    LogPrint("http", "Entering http event loop\n");
+    LogPrint(BCLog::HTTP, "Entering http event loop\n");
     event_base_dispatch(base);
     // Event loop will be interrupted by InterruptHTTPServer()
-    LogPrint("http", "Exited http event loop\n");
+    LogPrint(BCLog::HTTP, "Exited http event loop\n");
     return event_base_got_break(base) == 0;
 }
 
@@ -336,7 +336,7 @@ static bool HTTPBindAddresses(struct evhttp* http)
 
     // Bind addresses
     for (std::vector<std::pair<std::string, uint16_t> >::iterator i = endpoints.begin(); i != endpoints.end(); ++i) {
-        LogPrint("http", "Binding RPC on address %s port %i\n", i->first, i->second);
+        LogPrint(BCLog::HTTP, "Binding RPC on address %s port %i\n", i->first, i->second);
         evhttp_bound_socket *bind_handle = evhttp_bind_socket_with_handle(http, i->first.empty() ? NULL : i->first.c_str(), i->second);
         if (bind_handle) {
             boundSockets.push_back(bind_handle);
@@ -364,7 +364,7 @@ static void libevent_log_cb(int severity, const char *msg)
     if (severity >= EVENT_LOG_WARN) // Log warn messages and higher without debug category
         LogPrintf("libevent: %s\n", msg);
     else
-        LogPrint("libevent", "libevent: %s\n", msg);
+        LogPrint(BCLog::LIBEVENT, "libevent: %s\n", msg);
 }
 
 bool InitHTTPServer()
@@ -387,10 +387,11 @@ bool InitHTTPServer()
 #if LIBEVENT_VERSION_NUMBER >= 0x02010100
     // If -debug=libevent, set full libevent debugging.
     // Otherwise, disable all libevent debugging.
-    if (LogAcceptCategory("libevent"))
+    if (LogAcceptCategory(BCLog::LIBEVENT)) {
         event_enable_debug_logging(EVENT_DBG_ALL);
-    else
+    } else {
         event_enable_debug_logging(EVENT_DBG_NONE);
+    }
 #endif
 #ifdef WIN32
     evthread_use_windows_threads();
@@ -424,7 +425,7 @@ bool InitHTTPServer()
         return false;
     }
 
-    LogPrint("http", "Initialized HTTP server\n");
+    LogPrint(BCLog::HTTP, "Initialized HTTP server\n");
     int workQueueDepth = std::max((long)GetArg("-rpcworkqueue", DEFAULT_HTTP_WORKQUEUE), 1L);
     LogPrintf("HTTP: creating work queue of depth %d\n", workQueueDepth);
 
@@ -439,7 +440,7 @@ std::future<bool> threadResult;
 
 bool StartHTTPServer()
 {
-    LogPrint("http", "Starting HTTP server\n");
+    LogPrint(BCLog::HTTP, "Starting HTTP server\n");
     int rpcThreads = std::max((long)GetArg("-rpcthreads", DEFAULT_HTTP_THREADS), 1L);
     LogPrintf("HTTP: starting %d worker threads\n", rpcThreads);
     std::packaged_task<bool(event_base*, evhttp*)> task(ThreadHTTP);
@@ -455,7 +456,7 @@ bool StartHTTPServer()
 
 void InterruptHTTPServer()
 {
-    LogPrint("http", "Interrupting HTTP server\n");
+    LogPrint(BCLog::HTTP, "Interrupting HTTP server\n");
     if (eventHTTP) {
         // Unlisten sockets
         for (evhttp_bound_socket *socket : boundSockets) {
@@ -470,15 +471,15 @@ void InterruptHTTPServer()
 
 void StopHTTPServer()
 {
-    LogPrint("http", "Stopping HTTP server\n");
+    LogPrint(BCLog::HTTP, "Stopping HTTP server\n");
     if (workQueue) {
-        LogPrint("http", "Waiting for HTTP worker threads to exit\n");
+        LogPrint(BCLog::HTTP, "Waiting for HTTP worker threads to exit\n");
         workQueue->WaitExit();
         delete workQueue;
         workQueue = nullptr;
     }
     if (eventBase) {
-        LogPrint("http", "Waiting for HTTP event thread to exit\n");
+        LogPrint(BCLog::HTTP, "Waiting for HTTP event thread to exit\n");
         // Give event loop a few seconds to exit (to send back last RPC responses), then break it
         // Before this was solved with event_base_loopexit, but that didn't work as expected in
         // at least libevent 2.0.21 and always introduced a delay. In libevent
@@ -499,7 +500,7 @@ void StopHTTPServer()
         event_base_free(eventBase);
         eventBase = 0;
     }
-    LogPrint("http", "Stopped HTTP server\n");
+    LogPrint(BCLog::HTTP, "Stopped HTTP server\n");
 }
 
 struct event_base* EventBase()
@@ -646,7 +647,7 @@ HTTPRequest::RequestMethod HTTPRequest::GetRequestMethod()
 
 void RegisterHTTPHandler(const std::string &prefix, bool exactMatch, const HTTPRequestHandler &handler)
 {
-    LogPrint("http", "Registering HTTP handler for %s (exactmatch %d)\n", prefix, exactMatch);
+    LogPrint(BCLog::HTTP, "Registering HTTP handler for %s (exactmatch %d)\n", prefix, exactMatch);
     pathHandlers.push_back(HTTPPathHandler(prefix, exactMatch, handler));
 }
 
@@ -659,7 +660,7 @@ void UnregisterHTTPHandler(const std::string &prefix, bool exactMatch)
             break;
     if (i != iend)
     {
-        LogPrint("http", "Unregistering HTTP handler for %s (exactmatch %d)\n", prefix, exactMatch);
+        LogPrint(BCLog::HTTP, "Unregistering HTTP handler for %s (exactmatch %d)\n", prefix, exactMatch);
         pathHandlers.erase(i);
     }
 }
diff --git a/src/init.cpp b/src/init.cpp
index 30b5e1b94d..23a15b4fd8 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -312,7 +312,7 @@ void OnRPCStopped()
     uiInterface.NotifyBlockTip.disconnect(&RPCNotifyBlockChange);
     RPCNotifyBlockChange(false, nullptr);
     cvBlockChange.notify_all();
-    LogPrint("rpc", "RPC stopped.\n");
+    LogPrint(BCLog::RPC, "RPC stopped.\n");
 }
 
 void OnRPCPreCommand(const CRPCCommand& cmd)
@@ -441,11 +441,8 @@ std::string HelpMessage(HelpMessageMode mode)
         strUsage += HelpMessageOpt("-limitdescendantsize=<n>", strprintf("Do not accept transactions if any ancestor would have more than <n> kilobytes of in-mempool descendants (default: %u).", DEFAULT_DESCENDANT_SIZE_LIMIT));
         strUsage += HelpMessageOpt("-bip9params=deployment:start:end", "Use given start/end times for specified BIP9 deployment (regtest-only)");
     }
-    std::string debugCategories = "addrman, alert, bench, cmpctblock, coindb, db, http, leveldb, libevent, lock, mempool, mempoolrej, net, proxy, prune, rand, reindex, rpc, selectcoins, tor, zmq"; // Don't translate these and qt below
-    if (mode == HMM_BITCOIN_QT)
-        debugCategories += ", qt";
     strUsage += HelpMessageOpt("-debug=<category>", strprintf(_("Output debugging information (default: %u, supplying <category> is optional)"), 0) + ". " +
-        _("If <category> is not supplied or if <category> = 1, output all debugging information.") + _("<category> can be:") + " " + debugCategories + ".");
+        _("If <category> is not supplied or if <category> = 1, output all debugging information.") + " " + _("<category> can be:") + " " + ListLogCategories() + ".");
     if (showDebug)
         strUsage += HelpMessageOpt("-nodebug", "Turn off debugging messages, same as -debug=0");
     strUsage += HelpMessageOpt("-help-debug", _("Show all debugging options (usage: --help -help-debug)"));
@@ -909,12 +906,19 @@ bool AppInitParameterInteraction()
 
     // ********************************************************* Step 3: parameter-to-internal-flags
 
-    fDebug = mapMultiArgs.count("-debug");
-    // Special-case: if -debug=0/-nodebug is set, turn off debugging messages
-    if (fDebug) {
+    if (mapMultiArgs.count("-debug") > 0) {
+        // Special-case: if -debug=0/-nodebug is set, turn off debugging messages
         const std::vector<std::string>& categories = mapMultiArgs.at("-debug");
-        if (GetBoolArg("-nodebug", false) || find(categories.begin(), categories.end(), std::string("0")) != categories.end())
-            fDebug = false;
+
+        if (!(GetBoolArg("-nodebug", false) || find(categories.begin(), categories.end(), std::string("0")) != categories.end())) {
+            for (const auto& cat : categories) {
+                uint32_t flag;
+                if (!GetLogCategory(&flag, &cat)) {
+                    InitWarning(strprintf(_("Unsupported logging category %s.\n"), cat));
+                }
+                logCategories |= flag;
+            }
+        }
     }
 
     // Check for -debugnet
@@ -1168,7 +1172,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
 #ifndef WIN32
     CreatePidFile(GetPidFile(), getpid());
 #endif
-    if (GetBoolArg("-shrinkdebugfile", !fDebug)) {
+    if (GetBoolArg("-shrinkdebugfile", logCategories != BCLog::NONE)) {
         // Do this first since it both loads a bunch of debug.log into memory,
         // and because this needs to happen before any other debug.log printing
         ShrinkDebugFile();
@@ -1492,7 +1496,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
                     break;
                 }
             } catch (const std::exception& e) {
-                if (fDebug) LogPrintf("%s\n", e.what());
+                LogPrintf("%s\n", e.what());
                 strLoadError = _("Error opening block database");
                 break;
             }
diff --git a/src/miner.cpp b/src/miner.cpp
index e155df015a..386d75c4be 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -204,7 +204,7 @@ std::unique_ptr<CBlockTemplate> BlockAssembler::CreateNewBlock(const CScript& sc
     }
     int64_t nTime2 = GetTimeMicros();
 
-    LogPrint("bench", "CreateNewBlock() packages: %.2fms (%d packages, %d updated descendants), validity: %.2fms (total %.2fms)\n", 0.001 * (nTime1 - nTimeStart), nPackagesSelected, nDescendantsUpdated, 0.001 * (nTime2 - nTime1), 0.001 * (nTime2 - nTimeStart));
+    LogPrint(BCLog::BENCH, "CreateNewBlock() packages: %.2fms (%d packages, %d updated descendants), validity: %.2fms (total %.2fms)\n", 0.001 * (nTime1 - nTimeStart), nPackagesSelected, nDescendantsUpdated, 0.001 * (nTime2 - nTime1), 0.001 * (nTime2 - nTimeStart));
 
     return std::move(pblocktemplate);
 }
diff --git a/src/net.cpp b/src/net.cpp
index 4c5b04b785..cf94faf854 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -190,7 +190,7 @@ void AdvertiseLocal(CNode *pnode)
         }
         if (addrLocal.IsRoutable())
         {
-            LogPrint("net", "AdvertiseLocal: advertising address %s\n", addrLocal.ToString());
+            LogPrint(BCLog::NET, "AdvertiseLocal: advertising address %s\n", addrLocal.ToString());
             FastRandomContext insecure_rand;
             pnode->PushAddress(addrLocal, insecure_rand);
         }
@@ -356,7 +356,7 @@ CNode* CConnman::ConnectNode(CAddress addrConnect, const char *pszDest, bool fCo
     }
 
     /// debug print
-    LogPrint("net", "trying connection %s lastseen=%.1fhrs\n",
+    LogPrint(BCLog::NET, "trying connection %s lastseen=%.1fhrs\n",
         pszDest ? pszDest : addrConnect.ToString(),
         pszDest ? 0.0 : (double)(GetAdjustedTime() - addrConnect.nTime)/3600.0);
 
@@ -423,7 +423,7 @@ void CConnman::DumpBanlist()
     if (!bandb.Write(banmap))
         SetBannedSetDirty(true);
 
-    LogPrint("net", "Flushed %d banned node ips/subnets to banlist.dat  %dms\n",
+    LogPrint(BCLog::NET, "Flushed %d banned node ips/subnets to banlist.dat  %dms\n",
         banmap.size(), GetTimeMillis() - nStart);
 }
 
@@ -433,7 +433,7 @@ void CNode::CloseSocketDisconnect()
     LOCK(cs_hSocket);
     if (hSocket != INVALID_SOCKET)
     {
-        LogPrint("net", "disconnecting peer=%d\n", id);
+        LogPrint(BCLog::NET, "disconnecting peer=%d\n", id);
         CloseSocket(hSocket);
     }
 }
@@ -565,7 +565,7 @@ void CConnman::SweepBanned()
         {
             setBanned.erase(it++);
             setBannedIsDirty = true;
-            LogPrint("net", "%s: Removed banned node ip/subnet from banlist.dat: %s\n", __func__, subNet.ToString());
+            LogPrint(BCLog::NET, "%s: Removed banned node ip/subnet from banlist.dat: %s\n", __func__, subNet.ToString());
         }
         else
             ++it;
@@ -711,7 +711,7 @@ bool CNode::ReceiveMsgBytes(const char *pch, unsigned int nBytes, bool& complete
                 return false;
 
         if (msg.in_data && msg.hdr.nMessageSize > MAX_PROTOCOL_MESSAGE_LENGTH) {
-            LogPrint("net", "Oversized message from peer=%i, disconnecting\n", GetId());
+            LogPrint(BCLog::NET, "Oversized message from peer=%i, disconnecting\n", GetId());
             return false;
         }
 
@@ -1087,7 +1087,7 @@ void CConnman::AcceptConnection(const ListenSocket& hListenSocket) {
     {
         if (!AttemptToEvictConnection()) {
             // No connection to evict, disconnect the new connection
-            LogPrint("net", "failed to find an eviction candidate - connection dropped (full)\n");
+            LogPrint(BCLog::NET, "failed to find an eviction candidate - connection dropped (full)\n");
             CloseSocket(hSocket);
             return;
         }
@@ -1101,7 +1101,7 @@ void CConnman::AcceptConnection(const ListenSocket& hListenSocket) {
     pnode->fWhitelisted = whitelisted;
     GetNodeSignals().InitializeNode(pnode, *this);
 
-    LogPrint("net", "connection from %s accepted\n", addr.ToString());
+    LogPrint(BCLog::NET, "connection from %s accepted\n", addr.ToString());
 
     {
         LOCK(cs_vNodes);
@@ -1336,8 +1336,9 @@ void CConnman::ThreadSocketHandler()
                         else if (nBytes == 0)
                         {
                             // socket closed gracefully
-                            if (!pnode->fDisconnect)
-                                LogPrint("net", "socket closed\n");
+                            if (!pnode->fDisconnect) {
+                                LogPrint(BCLog::NET, "socket closed\n");
+                            }
                             pnode->CloseSocketDisconnect();
                         }
                         else if (nBytes < 0)
@@ -1375,7 +1376,7 @@ void CConnman::ThreadSocketHandler()
             {
                 if (pnode->nLastRecv == 0 || pnode->nLastSend == 0)
                 {
-                    LogPrint("net", "socket no message in first 60 seconds, %d %d from %d\n", pnode->nLastRecv != 0, pnode->nLastSend != 0, pnode->id);
+                    LogPrint(BCLog::NET, "socket no message in first 60 seconds, %d %d from %d\n", pnode->nLastRecv != 0, pnode->nLastSend != 0, pnode->id);
                     pnode->fDisconnect = true;
                 }
                 else if (nTime - pnode->nLastSend > TIMEOUT_INTERVAL)
@@ -1634,7 +1635,7 @@ void CConnman::DumpAddresses()
     CAddrDB adb;
     adb.Write(addrman);
 
-    LogPrint("net", "Flushed %d addresses to peers.dat  %dms\n",
+    LogPrint(BCLog::NET, "Flushed %d addresses to peers.dat  %dms\n",
            addrman.size(), GetTimeMillis() - nStart);
 }
 
@@ -1807,7 +1808,7 @@ void CConnman::ThreadOpenConnections()
                 int randsleep = GetRandInt(FEELER_SLEEP_WINDOW * 1000);
                 if (!interruptNet.sleep_for(std::chrono::milliseconds(randsleep)))
                     return;
-                LogPrint("net", "Making feeler connection to %s\n", addrConnect.ToString());
+                LogPrint(BCLog::NET, "Making feeler connection to %s\n", addrConnect.ToString());
             }
 
             OpenNetworkConnection(addrConnect, (int)setConnected.size() >= std::min(nMaxConnections - 1, 2), &grant, NULL, false, fFeeler);
@@ -2150,9 +2151,7 @@ void Discover(boost::thread_group& threadGroup)
 
 void CConnman::SetNetworkActive(bool active)
 {
-    if (fDebug) {
-        LogPrint("net", "SetNetworkActive: %s\n", active);
-    }
+    LogPrint(BCLog::NET, "SetNetworkActive: %s\n", active);
 
     if (!active) {
         fNetworkActive = false;
@@ -2241,7 +2240,7 @@ bool CConnman::Start(CScheduler& scheduler, std::string& strNodeError, Options c
         SetBannedSetDirty(false); // no need to write down, just read data
         SweepBanned(); // sweep out unused entries
 
-        LogPrint("net", "Loaded %d banned node ips/subnets from banlist.dat  %dms\n",
+        LogPrint(BCLog::NET, "Loaded %d banned node ips/subnets from banlist.dat  %dms\n",
             banmap.size(), GetTimeMillis() - nStart);
     } else {
         LogPrintf("Invalid or missing banlist.dat; recreating\n");
@@ -2683,10 +2682,11 @@ CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn
         mapRecvBytesPerMsgCmd[msg] = 0;
     mapRecvBytesPerMsgCmd[NET_MESSAGE_COMMAND_OTHER] = 0;
 
-    if (fLogIPs)
-        LogPrint("net", "Added connection to %s peer=%d\n", addrName, id);
-    else
-        LogPrint("net", "Added connection peer=%d\n", id);
+    if (fLogIPs) {
+        LogPrint(BCLog::NET, "Added connection to %s peer=%d\n", addrName, id);
+    } else {
+        LogPrint(BCLog::NET, "Added connection peer=%d\n", id);
+    }
 }
 
 CNode::~CNode()
@@ -2713,7 +2713,7 @@ void CNode::AskFor(const CInv& inv)
         nRequestTime = it->second;
     else
         nRequestTime = 0;
-    LogPrint("net", "askfor %s  %d (%s) peer=%d\n", inv.ToString(), nRequestTime, DateTimeStrFormat("%H:%M:%S", nRequestTime/1000000), id);
+    LogPrint(BCLog::NET, "askfor %s  %d (%s) peer=%d\n", inv.ToString(), nRequestTime, DateTimeStrFormat("%H:%M:%S", nRequestTime/1000000), id);
 
     // Make sure not to reuse time indexes to keep things in the same order
     int64_t nNow = GetTimeMicros() - 1000000;
@@ -2740,7 +2740,7 @@ void CConnman::PushMessage(CNode* pnode, CSerializedNetMsg&& msg)
 {
     size_t nMessageSize = msg.data.size();
     size_t nTotalSize = nMessageSize + CMessageHeader::HEADER_SIZE;
-    LogPrint("net", "sending %s (%d bytes) peer=%d\n",  SanitizeString(msg.command.c_str()), nMessageSize, pnode->id);
+    LogPrint(BCLog::NET, "sending %s (%d bytes) peer=%d\n",  SanitizeString(msg.command.c_str()), nMessageSize, pnode->id);
 
     std::vector<unsigned char> serializedHeader;
     serializedHeader.reserve(CMessageHeader::HEADER_SIZE);
diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index 71a0a1de22..17653f542d 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -256,10 +256,11 @@ void PushNodeVersion(CNode *pnode, CConnman& connman, int64_t nTime)
     connman.PushMessage(pnode, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::VERSION, PROTOCOL_VERSION, (uint64_t)nLocalNodeServices, nTime, addrYou, addrMe,
             nonce, strSubVersion, nNodeStartingHeight, ::fRelayTxes));
 
-    if (fLogIPs)
-        LogPrint("net", "send version message: version %d, blocks=%d, us=%s, them=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), addrYou.ToString(), nodeid);
-    else
-        LogPrint("net", "send version message: version %d, blocks=%d, us=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), nodeid);
+    if (fLogIPs) {
+        LogPrint(BCLog::NET, "send version message: version %d, blocks=%d, us=%s, them=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), addrYou.ToString(), nodeid);
+    } else {
+        LogPrint(BCLog::NET, "send version message: version %d, blocks=%d, us=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), nodeid);
+    }
 }
 
 void InitializeNode(CNode *pnode, CConnman& connman) {
@@ -619,7 +620,7 @@ bool AddOrphanTx(const CTransactionRef& tx, NodeId peer) EXCLUSIVE_LOCKS_REQUIRE
     unsigned int sz = GetTransactionWeight(*tx);
     if (sz >= MAX_STANDARD_TX_WEIGHT)
     {
-        LogPrint("mempool", "ignoring large orphan tx (size: %u, hash: %s)\n", sz, hash.ToString());
+        LogPrint(BCLog::MEMPOOL, "ignoring large orphan tx (size: %u, hash: %s)\n", sz, hash.ToString());
         return false;
     }
 
@@ -631,7 +632,7 @@ bool AddOrphanTx(const CTransactionRef& tx, NodeId peer) EXCLUSIVE_LOCKS_REQUIRE
 
     AddToCompactExtraTransactions(tx);
 
-    LogPrint("mempool", "stored orphan tx %s (mapsz %u outsz %u)\n", hash.ToString(),
+    LogPrint(BCLog::MEMPOOL, "stored orphan tx %s (mapsz %u outsz %u)\n", hash.ToString(),
              mapOrphanTransactions.size(), mapOrphanTransactionsByPrev.size());
     return true;
 }
@@ -666,7 +667,7 @@ void EraseOrphansFor(NodeId peer)
             nErased += EraseOrphanTx(maybeErase->second.tx->GetHash());
         }
     }
-    if (nErased > 0) LogPrint("mempool", "Erased %d orphan tx from peer=%d\n", nErased, peer);
+    if (nErased > 0) LogPrint(BCLog::MEMPOOL, "Erased %d orphan tx from peer=%d\n", nErased, peer);
 }
 
 
@@ -691,7 +692,7 @@ unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans) EXCLUSIVE_LOCKS_REQUIRE
         }
         // Sweep again 5 minutes after the next entry that expires in order to batch the linear scan.
         nNextSweep = nMinExpTime + ORPHAN_TX_EXPIRE_INTERVAL;
-        if (nErased > 0) LogPrint("mempool", "Erased %d orphan tx due to expiration\n", nErased);
+        if (nErased > 0) LogPrint(BCLog::MEMPOOL, "Erased %d orphan tx due to expiration\n", nErased);
     }
     while (mapOrphanTransactions.size() > nMaxOrphans)
     {
@@ -767,7 +768,7 @@ void PeerLogicValidation::SyncTransaction(const CTransaction& tx, const CBlockIn
         BOOST_FOREACH(uint256 &orphanHash, vOrphanErase) {
             nErased += EraseOrphanTx(orphanHash);
         }
-        LogPrint("mempool", "Erased %d orphan tx included or conflicted by block\n", nErased);
+        LogPrint(BCLog::MEMPOOL, "Erased %d orphan tx included or conflicted by block\n", nErased);
     }
 }
 
@@ -808,7 +809,7 @@ void PeerLogicValidation::NewPoWValidBlock(const CBlockIndex *pindex, const std:
         if (state.fPreferHeaderAndIDs && (!fWitnessEnabled || state.fWantsCmpctWitness) &&
                 !PeerHasHeader(&state, pindex) && PeerHasHeader(&state, pindex->pprev)) {
 
-            LogPrint("net", "%s sending header-and-ids %s to peer=%d\n", "PeerLogicValidation::NewPoWValidBlock",
+            LogPrint(BCLog::NET, "%s sending header-and-ids %s to peer=%d\n", "PeerLogicValidation::NewPoWValidBlock",
                     hashBlock.ToString(), pnode->id);
             connman->PushMessage(pnode, msgMaker.Make(NetMsgType::CMPCTBLOCK, *pcmpctblock));
             state.pindexBestHeaderSent = pindex;
@@ -1024,7 +1025,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam
                 static const int nOneWeek = 7 * 24 * 60 * 60; // assume > 1 week = historical
                 if (send && connman.OutboundTargetReached(true) && ( ((pindexBestHeader != NULL) && (pindexBestHeader->GetBlockTime() - mi->second->GetBlockTime() > nOneWeek)) || inv.type == MSG_FILTERED_BLOCK) && !pfrom->fWhitelisted)
                 {
-                    LogPrint("net", "historical block serving limit reached, disconnect peer=%d\n", pfrom->GetId());
+                    LogPrint(BCLog::NET, "historical block serving limit reached, disconnect peer=%d\n", pfrom->GetId());
 
                     //disconnect node
                     pfrom->fDisconnect = true;
@@ -1168,7 +1169,7 @@ inline void static SendBlockTransactions(const CBlock& block, const BlockTransac
 
 bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStream& vRecv, int64_t nTimeReceived, const CChainParams& chainparams, CConnman& connman, const std::atomic<bool>& interruptMsgProc)
 {
-    LogPrint("net", "received: %s (%u bytes) peer=%d\n", SanitizeString(strCommand), vRecv.size(), pfrom->id);
+    LogPrint(BCLog::NET, "received: %s (%u bytes) peer=%d\n", SanitizeString(strCommand), vRecv.size(), pfrom->id);
     if (IsArgSet("-dropmessagestest") && GetRand(GetArg("-dropmessagestest", 0)) == 0)
     {
         LogPrintf("dropmessagestest DROPPING RECV MESSAGE\n");
@@ -1192,7 +1193,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
 
     if (strCommand == NetMsgType::REJECT)
     {
-        if (fDebug) {
+        if (LogAcceptCategory(BCLog::NET)) {
             try {
                 std::string strMsg; unsigned char ccode; std::string strReason;
                 vRecv >> LIMITED_STRING(strMsg, CMessageHeader::COMMAND_SIZE) >> ccode >> LIMITED_STRING(strReason, MAX_REJECT_MESSAGE_LENGTH);
@@ -1206,10 +1207,10 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                     vRecv >> hash;
                     ss << ": hash " << hash.ToString();
                 }
-                LogPrint("net", "Reject %s\n", SanitizeString(ss.str()));
+                LogPrint(BCLog::NET, "Reject %s\n", SanitizeString(ss.str()));
             } catch (const std::ios_base::failure&) {
                 // Avoid feedback loops by preventing reject messages from triggering a new reject message.
-                LogPrint("net", "Unparseable reject message received\n");
+                LogPrint(BCLog::NET, "Unparseable reject message received\n");
             }
         }
     }
@@ -1247,7 +1248,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         }
         if (pfrom->nServicesExpected & ~nServices)
         {
-            LogPrint("net", "peer=%d does not offer the expected services (%08x offered, %08x expected); disconnecting\n", pfrom->id, nServices, pfrom->nServicesExpected);
+            LogPrint(BCLog::NET, "peer=%d does not offer the expected services (%08x offered, %08x expected); disconnecting\n", pfrom->id, nServices, pfrom->nServicesExpected);
             connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_NONSTANDARD,
                                strprintf("Expected to offer services %08x", pfrom->nServicesExpected)));
             pfrom->fDisconnect = true;
@@ -1335,11 +1336,11 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                 FastRandomContext insecure_rand;
                 if (addr.IsRoutable())
                 {
-                    LogPrint("net", "ProcessMessages: advertising address %s\n", addr.ToString());
+                    LogPrint(BCLog::NET, "ProcessMessages: advertising address %s\n", addr.ToString());
                     pfrom->PushAddress(addr, insecure_rand);
                 } else if (IsPeerAddrLocalGood(pfrom)) {
                     addr.SetIP(addrMe);
-                    LogPrint("net", "ProcessMessages: advertising address %s\n", addr.ToString());
+                    LogPrint(BCLog::NET, "ProcessMessages: advertising address %s\n", addr.ToString());
                     pfrom->PushAddress(addr, insecure_rand);
                 }
             }
@@ -1541,7 +1542,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                 return true;
 
             bool fAlreadyHave = AlreadyHave(inv);
-            LogPrint("net", "got inv: %s  %s peer=%d\n", inv.ToString(), fAlreadyHave ? "have" : "new", pfrom->id);
+            LogPrint(BCLog::NET, "got inv: %s  %s peer=%d\n", inv.ToString(), fAlreadyHave ? "have" : "new", pfrom->id);
 
             if (inv.type == MSG_TX) {
                 inv.type |= nFetchFlags;
@@ -1556,16 +1557,17 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                     // we now only provide a getheaders response here. When we receive the headers, we will
                     // then ask for the blocks we need.
                     connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), inv.hash));
-                    LogPrint("net", "getheaders (%d) %s to peer=%d\n", pindexBestHeader->nHeight, inv.hash.ToString(), pfrom->id);
+                    LogPrint(BCLog::NET, "getheaders (%d) %s to peer=%d\n", pindexBestHeader->nHeight, inv.hash.ToString(), pfrom->id);
                 }
             }
             else
             {
                 pfrom->AddInventoryKnown(inv);
-                if (fBlocksOnly)
-                    LogPrint("net", "transaction (%s) inv sent in violation of protocol peer=%d\n", inv.hash.ToString(), pfrom->id);
-                else if (!fAlreadyHave && !fImporting && !fReindex && !IsInitialBlockDownload())
+                if (fBlocksOnly) {
+                    LogPrint(BCLog::NET, "transaction (%s) inv sent in violation of protocol peer=%d\n", inv.hash.ToString(), pfrom->id);
+                } else if (!fAlreadyHave && !fImporting && !fReindex && !IsInitialBlockDownload()) {
                     pfrom->AskFor(inv);
+                }
             }
 
             // Track requests for our stuff
@@ -1588,11 +1590,11 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
             return error("message getdata size() = %u", vInv.size());
         }
 
-        if (fDebug || (vInv.size() != 1))
-            LogPrint("net", "received getdata (%u invsz) peer=%d\n", vInv.size(), pfrom->id);
+        LogPrint(BCLog::NET, "received getdata (%u invsz) peer=%d\n", vInv.size(), pfrom->id);
 
-        if ((fDebug && vInv.size() > 0) || (vInv.size() == 1))
-            LogPrint("net", "received getdata for: %s peer=%d\n", vInv[0].ToString(), pfrom->id);
+        if (vInv.size() > 0) {
+            LogPrint(BCLog::NET, "received getdata for: %s peer=%d\n", vInv[0].ToString(), pfrom->id);
+        }
 
         pfrom->vRecvGetData.insert(pfrom->vRecvGetData.end(), vInv.begin(), vInv.end());
         ProcessGetData(pfrom, chainparams.GetConsensus(), connman, interruptMsgProc);
@@ -1631,12 +1633,12 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         if (pindex)
             pindex = chainActive.Next(pindex);
         int nLimit = 500;
-        LogPrint("net", "getblocks %d to %s limit %d from peer=%d\n", (pindex ? pindex->nHeight : -1), hashStop.IsNull() ? "end" : hashStop.ToString(), nLimit, pfrom->id);
+        LogPrint(BCLog::NET, "getblocks %d to %s limit %d from peer=%d\n", (pindex ? pindex->nHeight : -1), hashStop.IsNull() ? "end" : hashStop.ToString(), nLimit, pfrom->id);
         for (; pindex; pindex = chainActive.Next(pindex))
         {
             if (pindex->GetBlockHash() == hashStop)
             {
-                LogPrint("net", "  getblocks stopping at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
+                LogPrint(BCLog::NET, "  getblocks stopping at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
                 break;
             }
             // If pruning, don't inv blocks unless we have on disk and are likely to still have
@@ -1644,7 +1646,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
             const int nPrunedBlocksLikelyToHave = MIN_BLOCKS_TO_KEEP - 3600 / chainparams.GetConsensus().nPowTargetSpacing;
             if (fPruneMode && (!(pindex->nStatus & BLOCK_HAVE_DATA) || pindex->nHeight <= chainActive.Tip()->nHeight - nPrunedBlocksLikelyToHave))
             {
-                LogPrint("net", " getblocks stopping, pruned or too old block at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
+                LogPrint(BCLog::NET, " getblocks stopping, pruned or too old block at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
                 break;
             }
             pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash()));
@@ -1652,7 +1654,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
             {
                 // When this block is requested, we'll send an inv that'll
                 // trigger the peer to getblocks the next batch of inventory.
-                LogPrint("net", "  getblocks stopping at limit %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
+                LogPrint(BCLog::NET, "  getblocks stopping at limit %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
                 pfrom->hashContinue = pindex->GetBlockHash();
                 break;
             }
@@ -1693,7 +1695,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
             // might maliciously send lots of getblocktxn requests to trigger
             // expensive disk reads, because it will require the peer to
             // actually receive all the data read from disk over the network.
-            LogPrint("net", "Peer %d sent us a getblocktxn for a block > %i deep", pfrom->id, MAX_BLOCKTXN_DEPTH);
+            LogPrint(BCLog::NET, "Peer %d sent us a getblocktxn for a block > %i deep", pfrom->id, MAX_BLOCKTXN_DEPTH);
             CInv inv;
             inv.type = State(pfrom->GetId())->fWantsCmpctWitness ? MSG_WITNESS_BLOCK : MSG_BLOCK;
             inv.hash = req.blockhash;
@@ -1718,7 +1720,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
 
         LOCK(cs_main);
         if (IsInitialBlockDownload() && !pfrom->fWhitelisted) {
-            LogPrint("net", "Ignoring getheaders from peer=%d because node is in initial block download\n", pfrom->id);
+            LogPrint(BCLog::NET, "Ignoring getheaders from peer=%d because node is in initial block download\n", pfrom->id);
             return true;
         }
 
@@ -1743,7 +1745,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         // we must use CBlocks, as CBlockHeaders won't include the 0x00 nTx count at the end
         std::vector<CBlock> vHeaders;
         int nLimit = MAX_HEADERS_RESULTS;
-        LogPrint("net", "getheaders %d to %s from peer=%d\n", (pindex ? pindex->nHeight : -1), hashStop.IsNull() ? "end" : hashStop.ToString(), pfrom->id);
+        LogPrint(BCLog::NET, "getheaders %d to %s from peer=%d\n", (pindex ? pindex->nHeight : -1), hashStop.IsNull() ? "end" : hashStop.ToString(), pfrom->id);
         for (; pindex; pindex = chainActive.Next(pindex))
         {
             vHeaders.push_back(pindex->GetBlockHeader());
@@ -1773,7 +1775,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         // We are in blocks only mode and peer is either not whitelisted or whitelistrelay is off
         if (!fRelayTxes && (!pfrom->fWhitelisted || !GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY)))
         {
-            LogPrint("net", "transaction sent in violation of protocol peer=%d\n", pfrom->id);
+            LogPrint(BCLog::NET, "transaction sent in violation of protocol peer=%d\n", pfrom->id);
             return true;
         }
 
@@ -1805,7 +1807,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
 
             pfrom->nLastTXTime = GetTime();
 
-            LogPrint("mempool", "AcceptToMemoryPool: peer=%d: accepted %s (poolsz %u txn, %u kB)\n",
+            LogPrint(BCLog::MEMPOOL, "AcceptToMemoryPool: peer=%d: accepted %s (poolsz %u txn, %u kB)\n",
                 pfrom->id,
                 tx.GetHash().ToString(),
                 mempool.size(), mempool.DynamicMemoryUsage() / 1000);
@@ -1835,7 +1837,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                     if (setMisbehaving.count(fromPeer))
                         continue;
                     if (AcceptToMemoryPool(mempool, stateDummy, porphanTx, true, &fMissingInputs2, &lRemovedTxn)) {
-                        LogPrint("mempool", "   accepted orphan tx %s\n", orphanHash.ToString());
+                        LogPrint(BCLog::MEMPOOL, "   accepted orphan tx %s\n", orphanHash.ToString());
                         RelayTransaction(orphanTx, connman);
                         for (unsigned int i = 0; i < orphanTx.vout.size(); i++) {
                             vWorkQueue.emplace_back(orphanHash, i);
@@ -1850,11 +1852,11 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                             // Punish peer that gave us an invalid orphan tx
                             Misbehaving(fromPeer, nDos);
                             setMisbehaving.insert(fromPeer);
-                            LogPrint("mempool", "   invalid orphan tx %s\n", orphanHash.ToString());
+                            LogPrint(BCLog::MEMPOOL, "   invalid orphan tx %s\n", orphanHash.ToString());
                         }
                         // Has inputs but not accepted to mempool
                         // Probably non-standard or insufficient fee
-                        LogPrint("mempool", "   removed orphan tx %s\n", orphanHash.ToString());
+                        LogPrint(BCLog::MEMPOOL, "   removed orphan tx %s\n", orphanHash.ToString());
                         vEraseQueue.push_back(orphanHash);
                         if (!orphanTx.HasWitness() && !stateDummy.CorruptionPossible()) {
                             // Do not use rejection cache for witness transactions or
@@ -1892,10 +1894,11 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                 // DoS prevention: do not allow mapOrphanTransactions to grow unbounded
                 unsigned int nMaxOrphanTx = (unsigned int)std::max((int64_t)0, GetArg("-maxorphantx", DEFAULT_MAX_ORPHAN_TRANSACTIONS));
                 unsigned int nEvicted = LimitOrphanTxSize(nMaxOrphanTx);
-                if (nEvicted > 0)
-                    LogPrint("mempool", "mapOrphan overflow, removed %u tx\n", nEvicted);
+                if (nEvicted > 0) {
+                    LogPrint(BCLog::MEMPOOL, "mapOrphan overflow, removed %u tx\n", nEvicted);
+                }
             } else {
-                LogPrint("mempool", "not keeping orphan with rejected parents %s\n",tx.GetHash().ToString());
+                LogPrint(BCLog::MEMPOOL, "not keeping orphan with rejected parents %s\n",tx.GetHash().ToString());
                 // We will continue to reject this tx since it has rejected
                 // parents so avoid re-requesting it from other peers.
                 recentRejects->insert(tx.GetHash());
@@ -1939,7 +1942,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         int nDoS = 0;
         if (state.IsInvalid(nDoS))
         {
-            LogPrint("mempoolrej", "%s from peer=%d was not accepted: %s\n", tx.GetHash().ToString(),
+            LogPrint(BCLog::MEMPOOLREJ, "%s from peer=%d was not accepted: %s\n", tx.GetHash().ToString(),
                 pfrom->id,
                 FormatStateMessage(state));
             if (state.GetRejectCode() < REJECT_INTERNAL) // Never send AcceptToMemoryPool's internal codes over P2P
@@ -2046,7 +2049,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                         (*queuedBlockIt)->partialBlock.reset(new PartiallyDownloadedBlock(&mempool));
                     else {
                         // The block was already in flight using compact blocks from the same peer
-                        LogPrint("net", "Peer sent us compact block we were already syncing!\n");
+                        LogPrint(BCLog::NET, "Peer sent us compact block we were already syncing!\n");
                         return true;
                     }
                 }
@@ -2161,7 +2164,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
             std::map<uint256, std::pair<NodeId, std::list<QueuedBlock>::iterator> >::iterator it = mapBlocksInFlight.find(resp.blockhash);
             if (it == mapBlocksInFlight.end() || !it->second.second->partialBlock ||
                     it->second.first != pfrom->GetId()) {
-                LogPrint("net", "Peer %d sent us block transactions for block we weren't expecting\n", pfrom->id);
+                LogPrint(BCLog::NET, "Peer %d sent us block transactions for block we weren't expecting\n", pfrom->id);
                 return true;
             }
 
@@ -2254,7 +2257,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         if (mapBlockIndex.find(headers[0].hashPrevBlock) == mapBlockIndex.end() && nCount < MAX_BLOCKS_TO_ANNOUNCE) {
             nodestate->nUnconnectingHeaders++;
             connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), uint256()));
-            LogPrint("net", "received header %s: missing prev block %s, sending getheaders (%d) to end (peer=%d, nUnconnectingHeaders=%d)\n",
+            LogPrint(BCLog::NET, "received header %s: missing prev block %s, sending getheaders (%d) to end (peer=%d, nUnconnectingHeaders=%d)\n",
                     headers[0].GetHash().ToString(),
                     headers[0].hashPrevBlock.ToString(),
                     pindexBestHeader->nHeight,
@@ -2296,7 +2299,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         LOCK(cs_main);
         CNodeState *nodestate = State(pfrom->GetId());
         if (nodestate->nUnconnectingHeaders > 0) {
-            LogPrint("net", "peer=%d: resetting nUnconnectingHeaders (%d -> 0)\n", pfrom->id, nodestate->nUnconnectingHeaders);
+            LogPrint(BCLog::NET, "peer=%d: resetting nUnconnectingHeaders (%d -> 0)\n", pfrom->id, nodestate->nUnconnectingHeaders);
         }
         nodestate->nUnconnectingHeaders = 0;
 
@@ -2307,7 +2310,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
             // Headers message had its maximum size; the peer may have more headers.
             // TODO: optimize: if pindexLast is an ancestor of chainActive.Tip or pindexBestHeader, continue
             // from there instead.
-            LogPrint("net", "more getheaders (%d) to end to peer=%d (startheight:%d)\n", pindexLast->nHeight, pfrom->id, pfrom->nStartingHeight);
+            LogPrint(BCLog::NET, "more getheaders (%d) to end to peer=%d (startheight:%d)\n", pindexLast->nHeight, pfrom->id, pfrom->nStartingHeight);
             connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexLast), uint256()));
         }
 
@@ -2332,7 +2335,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
             // the main chain -- this shouldn't really happen.  Bail out on the
             // direct fetch and rely on parallel download instead.
             if (!chainActive.Contains(pindexWalk)) {
-                LogPrint("net", "Large reorg, won't direct fetch to %s (%d)\n",
+                LogPrint(BCLog::NET, "Large reorg, won't direct fetch to %s (%d)\n",
                         pindexLast->GetBlockHash().ToString(),
                         pindexLast->nHeight);
             } else {
@@ -2346,11 +2349,11 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                     uint32_t nFetchFlags = GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus());
                     vGetData.push_back(CInv(MSG_BLOCK | nFetchFlags, pindex->GetBlockHash()));
                     MarkBlockAsInFlight(pfrom->GetId(), pindex->GetBlockHash(), chainparams.GetConsensus(), pindex);
-                    LogPrint("net", "Requesting block %s from  peer=%d\n",
+                    LogPrint(BCLog::NET, "Requesting block %s from  peer=%d\n",
                             pindex->GetBlockHash().ToString(), pfrom->id);
                 }
                 if (vGetData.size() > 1) {
-                    LogPrint("net", "Downloading blocks toward %s (%d) via headers direct fetch\n",
+                    LogPrint(BCLog::NET, "Downloading blocks toward %s (%d) via headers direct fetch\n",
                             pindexLast->GetBlockHash().ToString(), pindexLast->nHeight);
                 }
                 if (vGetData.size() > 0) {
@@ -2370,7 +2373,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         std::shared_ptr<CBlock> pblock = std::make_shared<CBlock>();
         vRecv >> *pblock;
 
-        LogPrint("net", "received block %s peer=%d\n", pblock->GetHash().ToString(), pfrom->id);
+        LogPrint(BCLog::NET, "received block %s peer=%d\n", pblock->GetHash().ToString(), pfrom->id);
 
         // Process all blocks from whitelisted peers, even if not requested,
         // unless we're still syncing with the network.
@@ -2402,14 +2405,14 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         // Making nodes which are behind NAT and can only make outgoing connections ignore
         // the getaddr message mitigates the attack.
         if (!pfrom->fInbound) {
-            LogPrint("net", "Ignoring \"getaddr\" from outbound connection. peer=%d\n", pfrom->id);
+            LogPrint(BCLog::NET, "Ignoring \"getaddr\" from outbound connection. peer=%d\n", pfrom->id);
             return true;
         }
 
         // Only send one GetAddr response per connection to reduce resource waste
         //  and discourage addr stamping of INV announcements.
         if (pfrom->fSentAddr) {
-            LogPrint("net", "Ignoring repeated \"getaddr\". peer=%d\n", pfrom->id);
+            LogPrint(BCLog::NET, "Ignoring repeated \"getaddr\". peer=%d\n", pfrom->id);
             return true;
         }
         pfrom->fSentAddr = true;
@@ -2426,14 +2429,14 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
     {
         if (!(pfrom->GetLocalServices() & NODE_BLOOM) && !pfrom->fWhitelisted)
         {
-            LogPrint("net", "mempool request with bloom filters disabled, disconnect peer=%d\n", pfrom->GetId());
+            LogPrint(BCLog::NET, "mempool request with bloom filters disabled, disconnect peer=%d\n", pfrom->GetId());
             pfrom->fDisconnect = true;
             return true;
         }
 
         if (connman.OutboundTargetReached(false) && !pfrom->fWhitelisted)
         {
-            LogPrint("net", "mempool request with bandwidth limit reached, disconnect peer=%d\n", pfrom->GetId());
+            LogPrint(BCLog::NET, "mempool request with bandwidth limit reached, disconnect peer=%d\n", pfrom->GetId());
             pfrom->fDisconnect = true;
             return true;
         }
@@ -2509,7 +2512,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
         }
 
         if (!(sProblem.empty())) {
-            LogPrint("net", "pong peer=%d: %s, %x expected, %x received, %u bytes\n",
+            LogPrint(BCLog::NET, "pong peer=%d: %s, %x expected, %x received, %u bytes\n",
                 pfrom->id,
                 sProblem,
                 pfrom->nPingNonceSent,
@@ -2587,7 +2590,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
                 LOCK(pfrom->cs_feeFilter);
                 pfrom->minFeeFilter = newFeeFilter;
             }
-            LogPrint("net", "received: feefilter of %s from peer=%d\n", CFeeRate(newFeeFilter).ToString(), pfrom->id);
+            LogPrint(BCLog::NET, "received: feefilter of %s from peer=%d\n", CFeeRate(newFeeFilter).ToString(), pfrom->id);
         }
     }
 
@@ -2598,7 +2601,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
 
     else {
         // Ignore unknown commands for extensibility
-        LogPrint("net", "Unknown command \"%s\" from peer=%d\n", SanitizeString(strCommand), pfrom->id);
+        LogPrint(BCLog::NET, "Unknown command \"%s\" from peer=%d\n", SanitizeString(strCommand), pfrom->id);
     }
 
 
@@ -2876,7 +2879,7 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
                    got back an empty response.  */
                 if (pindexStart->pprev)
                     pindexStart = pindexStart->pprev;
-                LogPrint("net", "initial getheaders (%d) to peer=%d (startheight:%d)\n", pindexStart->nHeight, pto->id, pto->nStartingHeight);
+                LogPrint(BCLog::NET, "initial getheaders (%d) to peer=%d (startheight:%d)\n", pindexStart->nHeight, pto->id, pto->nStartingHeight);
                 connman.PushMessage(pto, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexStart), uint256()));
             }
         }
@@ -2960,7 +2963,7 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
                 if (vHeaders.size() == 1 && state.fPreferHeaderAndIDs) {
                     // We only send up to 1 block as header-and-ids, as otherwise
                     // probably means we're doing an initial-ish-sync or they're slow
-                    LogPrint("net", "%s sending header-and-ids %s to peer=%d\n", __func__,
+                    LogPrint(BCLog::NET, "%s sending header-and-ids %s to peer=%d\n", __func__,
                             vHeaders.front().GetHash().ToString(), pto->id);
 
                     int nSendFlags = state.fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS;
@@ -2988,12 +2991,12 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
                     state.pindexBestHeaderSent = pBestIndex;
                 } else if (state.fPreferHeaders) {
                     if (vHeaders.size() > 1) {
-                        LogPrint("net", "%s: %u headers, range (%s, %s), to peer=%d\n", __func__,
+                        LogPrint(BCLog::NET, "%s: %u headers, range (%s, %s), to peer=%d\n", __func__,
                                 vHeaders.size(),
                                 vHeaders.front().GetHash().ToString(),
                                 vHeaders.back().GetHash().ToString(), pto->id);
                     } else {
-                        LogPrint("net", "%s: sending header %s to peer=%d\n", __func__,
+                        LogPrint(BCLog::NET, "%s: sending header %s to peer=%d\n", __func__,
                                 vHeaders.front().GetHash().ToString(), pto->id);
                     }
                     connman.PushMessage(pto, msgMaker.Make(NetMsgType::HEADERS, vHeaders));
@@ -3015,14 +3018,14 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
                     // This should be very rare and could be optimized out.
                     // Just log for now.
                     if (chainActive[pindex->nHeight] != pindex) {
-                        LogPrint("net", "Announcing block %s not on main chain (tip=%s)\n",
+                        LogPrint(BCLog::NET, "Announcing block %s not on main chain (tip=%s)\n",
                             hashToAnnounce.ToString(), chainActive.Tip()->GetBlockHash().ToString());
                     }
 
                     // If the peer's chain has this block, don't inv it back.
                     if (!PeerHasHeader(&state, pindex)) {
                         pto->PushInventory(CInv(MSG_BLOCK, hashToAnnounce));
-                        LogPrint("net", "%s: sending inv peer=%d hash=%s\n", __func__,
+                        LogPrint(BCLog::NET, "%s: sending inv peer=%d hash=%s\n", __func__,
                             pto->id, hashToAnnounce.ToString());
                     }
                 }
@@ -3201,13 +3204,13 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
                 uint32_t nFetchFlags = GetFetchFlags(pto, pindex->pprev, consensusParams);
                 vGetData.push_back(CInv(MSG_BLOCK | nFetchFlags, pindex->GetBlockHash()));
                 MarkBlockAsInFlight(pto->GetId(), pindex->GetBlockHash(), consensusParams, pindex);
-                LogPrint("net", "Requesting block %s (%d) peer=%d\n", pindex->GetBlockHash().ToString(),
+                LogPrint(BCLog::NET, "Requesting block %s (%d) peer=%d\n", pindex->GetBlockHash().ToString(),
                     pindex->nHeight, pto->id);
             }
             if (state.nBlocksInFlight == 0 && staller != -1) {
                 if (State(staller)->nStallingSince == 0) {
                     State(staller)->nStallingSince = nNow;
-                    LogPrint("net", "Stall started peer=%d\n", staller);
+                    LogPrint(BCLog::NET, "Stall started peer=%d\n", staller);
                 }
             }
         }
@@ -3220,8 +3223,7 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
             const CInv& inv = (*pto->mapAskFor.begin()).second;
             if (!AlreadyHave(inv))
             {
-                if (fDebug)
-                    LogPrint("net", "Requesting %s peer=%d\n", inv.ToString(), pto->id);
+                LogPrint(BCLog::NET, "Requesting %s peer=%d\n", inv.ToString(), pto->id);
                 vGetData.push_back(inv);
                 if (vGetData.size() >= 1000)
                 {
diff --git a/src/netbase.cpp b/src/netbase.cpp
index 0f02e93e46..bdc725359a 100644
--- a/src/netbase.cpp
+++ b/src/netbase.cpp
@@ -281,7 +281,7 @@ std::string Socks5ErrorString(int err)
 static bool Socks5(const std::string& strDest, int port, const ProxyCredentials *auth, SOCKET& hSocket)
 {
     IntrRecvError recvr;
-    LogPrint("net", "SOCKS5 connecting %s\n", strDest);
+    LogPrint(BCLog::NET, "SOCKS5 connecting %s\n", strDest);
     if (strDest.size() > 255) {
         CloseSocket(hSocket);
         return error("Hostname too long");
@@ -327,7 +327,7 @@ static bool Socks5(const std::string& strDest, int port, const ProxyCredentials
             CloseSocket(hSocket);
             return error("Error sending authentication to proxy");
         }
-        LogPrint("proxy", "SOCKS5 sending proxy authentication %s:%s\n", auth->username, auth->password);
+        LogPrint(BCLog::PROXY, "SOCKS5 sending proxy authentication %s:%s\n", auth->username, auth->password);
         char pchRetA[2];
         if ((recvr = InterruptibleRecv(pchRetA, 2, SOCKS5_RECV_TIMEOUT, hSocket)) != IntrRecvError::OK) {
             CloseSocket(hSocket);
@@ -409,7 +409,7 @@ static bool Socks5(const std::string& strDest, int port, const ProxyCredentials
         CloseSocket(hSocket);
         return error("Error reading from proxy");
     }
-    LogPrint("net", "SOCKS5 connected %s\n", strDest);
+    LogPrint(BCLog::NET, "SOCKS5 connected %s\n", strDest);
     return true;
 }
 
@@ -458,7 +458,7 @@ bool static ConnectSocketDirectly(const CService &addrConnect, SOCKET& hSocketRe
             int nRet = select(hSocket + 1, NULL, &fdset, NULL, &timeout);
             if (nRet == 0)
             {
-                LogPrint("net", "connection to %s timeout\n", addrConnect.ToString());
+                LogPrint(BCLog::NET, "connection to %s timeout\n", addrConnect.ToString());
                 CloseSocket(hSocket);
                 return false;
             }
diff --git a/src/policy/fees.cpp b/src/policy/fees.cpp
index da33e4100f..38e07dc345 100644
--- a/src/policy/fees.cpp
+++ b/src/policy/fees.cpp
@@ -165,7 +165,7 @@ double TxConfirmStats::EstimateMedianVal(int confTarget, double sufficientTxVal,
         }
     }
 
-    LogPrint("estimatefee", "%3d: For conf success %s %4.2f need feerate %s: %12.5g from buckets %8g - %8g  Cur Bucket stats %6.2f%%  %8.1f/(%.1f+%d mempool)\n",
+    LogPrint(BCLog::ESTIMATEFEE, "%3d: For conf success %s %4.2f need feerate %s: %12.5g from buckets %8g - %8g  Cur Bucket stats %6.2f%%  %8.1f/(%.1f+%d mempool)\n",
              confTarget, requireGreater ? ">" : "<", successBreakPoint,
              requireGreater ? ">" : "<", median, buckets[minBucket], buckets[maxBucket],
              100 * nConf / (totalNum + extraNum), nConf, totalNum, extraNum);
@@ -241,7 +241,7 @@ void TxConfirmStats::Read(CAutoFile& filein)
     for (unsigned int i = 0; i < buckets.size(); i++)
         bucketMap[buckets[i]] = i;
 
-    LogPrint("estimatefee", "Reading estimates: %u buckets counting confirms up to %u blocks\n",
+    LogPrint(BCLog::ESTIMATEFEE, "Reading estimates: %u buckets counting confirms up to %u blocks\n",
              numBuckets, maxConfirms);
 }
 
@@ -260,24 +260,26 @@ void TxConfirmStats::removeTx(unsigned int entryHeight, unsigned int nBestSeenHe
     if (nBestSeenHeight == 0)  // the BlockPolicyEstimator hasn't seen any blocks yet
         blocksAgo = 0;
     if (blocksAgo < 0) {
-        LogPrint("estimatefee", "Blockpolicy error, blocks ago is negative for mempool tx\n");
+        LogPrint(BCLog::ESTIMATEFEE, "Blockpolicy error, blocks ago is negative for mempool tx\n");
         return;  //This can't happen because we call this with our best seen height, no entries can have higher
     }
 
     if (blocksAgo >= (int)unconfTxs.size()) {
-        if (oldUnconfTxs[bucketindex] > 0)
+        if (oldUnconfTxs[bucketindex] > 0) {
             oldUnconfTxs[bucketindex]--;
-        else
-            LogPrint("estimatefee", "Blockpolicy error, mempool tx removed from >25 blocks,bucketIndex=%u already\n",
+        } else {
+            LogPrint(BCLog::ESTIMATEFEE, "Blockpolicy error, mempool tx removed from >25 blocks,bucketIndex=%u already\n",
                      bucketindex);
+        }
     }
     else {
         unsigned int blockIndex = entryHeight % unconfTxs.size();
-        if (unconfTxs[blockIndex][bucketindex] > 0)
+        if (unconfTxs[blockIndex][bucketindex] > 0) {
             unconfTxs[blockIndex][bucketindex]--;
-        else
-            LogPrint("estimatefee", "Blockpolicy error, mempool tx removed from blockIndex=%u,bucketIndex=%u already\n",
+        } else {
+            LogPrint(BCLog::ESTIMATEFEE, "Blockpolicy error, mempool tx removed from blockIndex=%u,bucketIndex=%u already\n",
                      blockIndex, bucketindex);
+        }
     }
 }
 
@@ -316,7 +318,7 @@ void CBlockPolicyEstimator::processTransaction(const CTxMemPoolEntry& entry, boo
     unsigned int txHeight = entry.GetHeight();
     uint256 hash = entry.GetTx().GetHash();
     if (mapMemPoolTxs.count(hash)) {
-        LogPrint("estimatefee", "Blockpolicy error mempool tx %s already being tracked\n",
+        LogPrint(BCLog::ESTIMATEFEE, "Blockpolicy error mempool tx %s already being tracked\n",
                  hash.ToString().c_str());
 	return;
     }
@@ -358,7 +360,7 @@ bool CBlockPolicyEstimator::processBlockTx(unsigned int nBlockHeight, const CTxM
     if (blocksToConfirm <= 0) {
         // This can't happen because we don't process transactions from a block with a height
         // lower than our greatest seen height
-        LogPrint("estimatefee", "Blockpolicy error Transaction had negative blocksToConfirm\n");
+        LogPrint(BCLog::ESTIMATEFEE, "Blockpolicy error Transaction had negative blocksToConfirm\n");
         return false;
     }
 
@@ -399,7 +401,7 @@ void CBlockPolicyEstimator::processBlock(unsigned int nBlockHeight,
     // Update all exponential averages with the current block state
     feeStats.UpdateMovingAverages();
 
-    LogPrint("estimatefee", "Blockpolicy after updating estimates for %u of %u txs in block, since last block %u of %u tracked, new mempool map size %u\n",
+    LogPrint(BCLog::ESTIMATEFEE, "Blockpolicy after updating estimates for %u of %u txs in block, since last block %u of %u tracked, new mempool map size %u\n",
              countedTxs, entries.size(), trackedTxs, trackedTxs + untrackedTxs, mapMemPoolTxs.size());
 
     trackedTxs = 0;
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 662e8037ca..05a3bd71fd 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -152,15 +152,21 @@ static void initTranslations(QTranslator &qtTranslatorBase, QTranslator &qtTrans
 #if QT_VERSION < 0x050000
 void DebugMessageHandler(QtMsgType type, const char *msg)
 {
-    const char *category = (type == QtDebugMsg) ? "qt" : NULL;
-    LogPrint(category, "GUI: %s\n", msg);
+    if (type == QtDebugMsg) {
+        LogPrint(BCLog::QT, "GUI: %s\n", msg);
+    } else {
+        LogPrintf("GUI: %s\n", msg);
+    }
 }
 #else
 void DebugMessageHandler(QtMsgType type, const QMessageLogContext& context, const QString &msg)
 {
     Q_UNUSED(context);
-    const char *category = (type == QtDebugMsg) ? "qt" : NULL;
-    LogPrint(category, "GUI: %s\n", msg.toStdString());
+    if (type == QtDebugMsg) {
+        LogPrint(BCLog::QT, "GUI: %s\n", msg.toStdString());
+    } else {
+        LogPrintf("GUI: %s\n", msg.toStdString());
+    }
 }
 #endif
 
diff --git a/src/qt/transactiondesc.cpp b/src/qt/transactiondesc.cpp
index 7e16cc9dd4..d81188895b 100644
--- a/src/qt/transactiondesc.cpp
+++ b/src/qt/transactiondesc.cpp
@@ -273,7 +273,7 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
     //
     // Debug view
     //
-    if (fDebug)
+    if (logCategories != BCLog::NONE)
     {
         strHTML += "<hr><br>" + tr("Debug information") + "<br><br>";
         BOOST_FOREACH(const CTxIn& txin, wtx.tx->vin)
diff --git a/src/random.cpp b/src/random.cpp
index 8284f457c9..6bcd0a70ba 100644
--- a/src/random.cpp
+++ b/src/random.cpp
@@ -91,7 +91,7 @@ static void RandAddSeedPerfmon()
     if (ret == ERROR_SUCCESS) {
         RAND_add(vData.data(), nSize, nSize / 100.0);
         memory_cleanse(vData.data(), nSize);
-        LogPrint("rand", "%s: %lu bytes\n", __func__, nSize);
+        LogPrint(BCLog::RAND, "%s: %lu bytes\n", __func__, nSize);
     } else {
         static bool warned = false; // Warn only once
         if (!warned) {
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index f158065e76..01066d0eb2 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -855,7 +855,7 @@ UniValue pruneblockchain(const JSONRPCRequest& request)
     else if (height > chainHeight)
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Blockchain is shorter than the attempted prune height.");
     else if (height > chainHeight - MIN_BLOCKS_TO_KEEP) {
-        LogPrint("rpc", "Attempt to prune blocks close to the tip.  Retaining the minimum number of blocks.");
+        LogPrint(BCLog::RPC, "Attempt to prune blocks close to the tip.  Retaining the minimum number of blocks.");
         height = chainHeight - MIN_BLOCKS_TO_KEEP;
     }
 
diff --git a/src/rpc/server.cpp b/src/rpc/server.cpp
index 9b0699afcc..ef9fecd8fe 100644
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -305,7 +305,7 @@ bool CRPCTable::appendCommand(const std::string& name, const CRPCCommand* pcmd)
 
 bool StartRPC()
 {
-    LogPrint("rpc", "Starting RPC\n");
+    LogPrint(BCLog::RPC, "Starting RPC\n");
     fRPCRunning = true;
     g_rpcSignals.Started();
     return true;
@@ -313,14 +313,14 @@ bool StartRPC()
 
 void InterruptRPC()
 {
-    LogPrint("rpc", "Interrupting RPC\n");
+    LogPrint(BCLog::RPC, "Interrupting RPC\n");
     // Interrupt e.g. running longpolls
     fRPCRunning = false;
 }
 
 void StopRPC()
 {
-    LogPrint("rpc", "Stopping RPC\n");
+    LogPrint(BCLog::RPC, "Stopping RPC\n");
     deadlineTimers.clear();
     g_rpcSignals.Stopped();
 }
@@ -368,8 +368,9 @@ void JSONRPCRequest::parse(const UniValue& valRequest)
     if (!valMethod.isStr())
         throw JSONRPCError(RPC_INVALID_REQUEST, "Method must be a string");
     strMethod = valMethod.get_str();
-    if (strMethod != "getblocktemplate")
-        LogPrint("rpc", "ThreadRPCServer method=%s\n", SanitizeString(strMethod));
+    if (strMethod != "getblocktemplate") {
+        LogPrint(BCLog::RPC, "ThreadRPCServer method=%s\n", SanitizeString(strMethod));
+    }
 
     // Parse params
     UniValue valParams = find_value(request, "params");
@@ -531,7 +532,7 @@ void RPCRunLater(const std::string& name, boost::function<void(void)> func, int6
     if (!timerInterface)
         throw JSONRPCError(RPC_INTERNAL_ERROR, "No timer handler registered for RPC");
     deadlineTimers.erase(name);
-    LogPrint("rpc", "queue run of timer %s in %i seconds (using %s)\n", name, nSeconds, timerInterface->Name());
+    LogPrint(BCLog::RPC, "queue run of timer %s in %i seconds (using %s)\n", name, nSeconds, timerInterface->Name());
     deadlineTimers.emplace(name, std::unique_ptr<RPCTimerBase>(timerInterface->NewTimer(func, nSeconds*1000)));
 }
 
diff --git a/src/timedata.cpp b/src/timedata.cpp
index 2ff6437c73..ec74912703 100644
--- a/src/timedata.cpp
+++ b/src/timedata.cpp
@@ -58,7 +58,7 @@ void AddTimeData(const CNetAddr& ip, int64_t nOffsetSample)
     // Add data
     static CMedianFilter<int64_t> vTimeOffsets(BITCOIN_TIMEDATA_MAX_SAMPLES, 0);
     vTimeOffsets.input(nOffsetSample);
-    LogPrint("net","added time data, samples %d, offset %+d (%+d minutes)\n", vTimeOffsets.size(), nOffsetSample, nOffsetSample/60);
+    LogPrint(BCLog::NET,"added time data, samples %d, offset %+d (%+d minutes)\n", vTimeOffsets.size(), nOffsetSample, nOffsetSample/60);
 
     // There is a known issue here (see issue #4521):
     //
@@ -108,11 +108,14 @@ void AddTimeData(const CNetAddr& ip, int64_t nOffsetSample)
                 }
             }
         }
-        
-        BOOST_FOREACH(int64_t n, vSorted)
-            LogPrint("net", "%+d  ", n);
-        LogPrint("net", "|  ");
-        
-        LogPrint("net", "nTimeOffset = %+d  (%+d minutes)\n", nTimeOffset, nTimeOffset/60);
+
+        if (LogAcceptCategory(BCLog::NET)) {
+            BOOST_FOREACH(int64_t n, vSorted) {
+                LogPrint(BCLog::NET, "%+d  ", n);
+            }
+            LogPrint(BCLog::NET, "|  ");
+
+            LogPrint(BCLog::NET, "nTimeOffset = %+d  (%+d minutes)\n", nTimeOffset, nTimeOffset/60);
+        }
     }
 }
diff --git a/src/torcontrol.cpp b/src/torcontrol.cpp
index d24020e51f..4c88ebe1d5 100644
--- a/src/torcontrol.cpp
+++ b/src/torcontrol.cpp
@@ -163,7 +163,7 @@ void TorControlConnection::readcb(struct bufferevent *bev, void *ctx)
                     self->reply_handlers.front()(*self, self->message);
                     self->reply_handlers.pop_front();
                 } else {
-                    LogPrint("tor", "tor: Received unexpected sync reply %i\n", self->message.code);
+                    LogPrint(BCLog::TOR, "tor: Received unexpected sync reply %i\n", self->message.code);
                 }
             }
             self->message.Clear();
@@ -182,13 +182,14 @@ void TorControlConnection::eventcb(struct bufferevent *bev, short what, void *ct
 {
     TorControlConnection *self = (TorControlConnection*)ctx;
     if (what & BEV_EVENT_CONNECTED) {
-        LogPrint("tor", "tor: Successfully connected!\n");
+        LogPrint(BCLog::TOR, "tor: Successfully connected!\n");
         self->connected(*self);
     } else if (what & (BEV_EVENT_EOF|BEV_EVENT_ERROR)) {
-        if (what & BEV_EVENT_ERROR)
-            LogPrint("tor", "tor: Error connecting to Tor control socket\n");
-        else
-            LogPrint("tor", "tor: End of stream\n");
+        if (what & BEV_EVENT_ERROR) {
+            LogPrint(BCLog::TOR, "tor: Error connecting to Tor control socket\n");
+        } else {
+            LogPrint(BCLog::TOR, "tor: End of stream\n");
+        }
         self->Disconnect();
         self->disconnected(*self);
     }
@@ -410,7 +411,7 @@ TorController::TorController(struct event_base* _base, const std::string& _targe
     // Read service private key if cached
     std::pair<bool,std::string> pkf = ReadBinaryFile(GetPrivateKeyFile());
     if (pkf.first) {
-        LogPrint("tor", "tor: Reading cached private key from %s\n", GetPrivateKeyFile());
+        LogPrint(BCLog::TOR, "tor: Reading cached private key from %s\n", GetPrivateKeyFile());
         private_key = pkf.second;
     }
 }
@@ -429,7 +430,7 @@ TorController::~TorController()
 void TorController::add_onion_cb(TorControlConnection& _conn, const TorControlReply& reply)
 {
     if (reply.code == 250) {
-        LogPrint("tor", "tor: ADD_ONION successful\n");
+        LogPrint(BCLog::TOR, "tor: ADD_ONION successful\n");
         BOOST_FOREACH(const std::string &s, reply.lines) {
             std::map<std::string,std::string> m = ParseTorReplyMapping(s);
             std::map<std::string,std::string>::iterator i;
@@ -441,7 +442,7 @@ void TorController::add_onion_cb(TorControlConnection& _conn, const TorControlRe
         service = LookupNumeric(std::string(service_id+".onion").c_str(), GetListenPort());
         LogPrintf("tor: Got service ID %s, advertising service %s\n", service_id, service.ToString());
         if (WriteBinaryFile(GetPrivateKeyFile(), private_key)) {
-            LogPrint("tor", "tor: Cached service private key to %s\n", GetPrivateKeyFile());
+            LogPrint(BCLog::TOR, "tor: Cached service private key to %s\n", GetPrivateKeyFile());
         } else {
             LogPrintf("tor: Error writing service private key to %s\n", GetPrivateKeyFile());
         }
@@ -457,7 +458,7 @@ void TorController::add_onion_cb(TorControlConnection& _conn, const TorControlRe
 void TorController::auth_cb(TorControlConnection& _conn, const TorControlReply& reply)
 {
     if (reply.code == 250) {
-        LogPrint("tor", "tor: Authentication successful\n");
+        LogPrint(BCLog::TOR, "tor: Authentication successful\n");
 
         // Now that we know Tor is running setup the proxy for onion addresses
         // if -onion isn't set to something else.
@@ -511,13 +512,13 @@ static std::vector<uint8_t> ComputeResponse(const std::string &key, const std::v
 void TorController::authchallenge_cb(TorControlConnection& _conn, const TorControlReply& reply)
 {
     if (reply.code == 250) {
-        LogPrint("tor", "tor: SAFECOOKIE authentication challenge successful\n");
+        LogPrint(BCLog::TOR, "tor: SAFECOOKIE authentication challenge successful\n");
         std::pair<std::string,std::string> l = SplitTorReplyLine(reply.lines[0]);
         if (l.first == "AUTHCHALLENGE") {
             std::map<std::string,std::string> m = ParseTorReplyMapping(l.second);
             std::vector<uint8_t> serverHash = ParseHex(m["SERVERHASH"]);
             std::vector<uint8_t> serverNonce = ParseHex(m["SERVERNONCE"]);
-            LogPrint("tor", "tor: AUTHCHALLENGE ServerHash %s ServerNonce %s\n", HexStr(serverHash), HexStr(serverNonce));
+            LogPrint(BCLog::TOR, "tor: AUTHCHALLENGE ServerHash %s ServerNonce %s\n", HexStr(serverHash), HexStr(serverNonce));
             if (serverNonce.size() != 32) {
                 LogPrintf("tor: ServerNonce is not 32 bytes, as required by spec\n");
                 return;
@@ -562,12 +563,12 @@ void TorController::protocolinfo_cb(TorControlConnection& _conn, const TorContro
                 std::map<std::string,std::string> m = ParseTorReplyMapping(l.second);
                 std::map<std::string,std::string>::iterator i;
                 if ((i = m.find("Tor")) != m.end()) {
-                    LogPrint("tor", "tor: Connected to Tor version %s\n", i->second);
+                    LogPrint(BCLog::TOR, "tor: Connected to Tor version %s\n", i->second);
                 }
             }
         }
         BOOST_FOREACH(const std::string &s, methods) {
-            LogPrint("tor", "tor: Supported authentication method: %s\n", s);
+            LogPrint(BCLog::TOR, "tor: Supported authentication method: %s\n", s);
         }
         // Prefer NULL, otherwise SAFECOOKIE. If a password is provided, use HASHEDPASSWORD
         /* Authentication:
@@ -577,18 +578,18 @@ void TorController::protocolinfo_cb(TorControlConnection& _conn, const TorContro
         std::string torpassword = GetArg("-torpassword", "");
         if (!torpassword.empty()) {
             if (methods.count("HASHEDPASSWORD")) {
-                LogPrint("tor", "tor: Using HASHEDPASSWORD authentication\n");
+                LogPrint(BCLog::TOR, "tor: Using HASHEDPASSWORD authentication\n");
                 boost::replace_all(torpassword, "\"", "\\\"");
                 _conn.Command("AUTHENTICATE \"" + torpassword + "\"", boost::bind(&TorController::auth_cb, this, _1, _2));
             } else {
                 LogPrintf("tor: Password provided with -torpassword, but HASHEDPASSWORD authentication is not available\n");
             }
         } else if (methods.count("NULL")) {
-            LogPrint("tor", "tor: Using NULL authentication\n");
+            LogPrint(BCLog::TOR, "tor: Using NULL authentication\n");
             _conn.Command("AUTHENTICATE", boost::bind(&TorController::auth_cb, this, _1, _2));
         } else if (methods.count("SAFECOOKIE")) {
             // Cookie: hexdump -e '32/1 "%02x""\n"'  ~/.tor/control_auth_cookie
-            LogPrint("tor", "tor: Using SAFECOOKIE authentication, reading cookie authentication from %s\n", cookiefile);
+            LogPrint(BCLog::TOR, "tor: Using SAFECOOKIE authentication, reading cookie authentication from %s\n", cookiefile);
             std::pair<bool,std::string> status_cookie = ReadBinaryFile(cookiefile, TOR_COOKIE_SIZE);
             if (status_cookie.first && status_cookie.second.size() == TOR_COOKIE_SIZE) {
                 // _conn.Command("AUTHENTICATE " + HexStr(status_cookie.second), boost::bind(&TorController::auth_cb, this, _1, _2));
@@ -630,7 +631,7 @@ void TorController::disconnected_cb(TorControlConnection& _conn)
     if (!reconnect)
         return;
 
-    LogPrint("tor", "tor: Not connected to Tor control port %s, trying to reconnect\n", target);
+    LogPrint(BCLog::TOR, "tor: Not connected to Tor control port %s, trying to reconnect\n", target);
 
     // Single-shot timer for reconnect. Use exponential backoff.
     struct timeval time = MillisToTimeval(int64_t(reconnect_timeout * 1000.0));
diff --git a/src/txdb.cpp b/src/txdb.cpp
index 1a30bb58ad..a3889fdf79 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -63,7 +63,7 @@ bool CCoinsViewDB::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) {
     if (!hashBlock.IsNull())
         batch.Write(DB_BEST_BLOCK, hashBlock);
 
-    LogPrint("coindb", "Committing %u changed transactions (out of %u) to coin database...\n", (unsigned int)changed, (unsigned int)count);
+    LogPrint(BCLog::COINDB, "Committing %u changed transactions (out of %u) to coin database...\n", (unsigned int)changed, (unsigned int)count);
     return db.WriteBatch(batch);
 }
 
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index 6e1d7a42b5..36a046ed2a 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -634,7 +634,7 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const
     if (GetRand(std::numeric_limits<uint32_t>::max()) >= nCheckFrequency)
         return;
 
-    LogPrint("mempool", "Checking mempool with %u transactions and %u inputs\n", (unsigned int)mapTx.size(), (unsigned int)mapNextTx.size());
+    LogPrint(BCLog::MEMPOOL, "Checking mempool with %u transactions and %u inputs\n", (unsigned int)mapTx.size(), (unsigned int)mapNextTx.size());
 
     uint64_t checkTotal = 0;
     uint64_t innerUsage = 0;
@@ -1108,8 +1108,9 @@ void CTxMemPool::TrimToSize(size_t sizelimit, std::vector<uint256>* pvNoSpendsRe
         }
     }
 
-    if (maxFeeRateRemoved > CFeeRate(0))
-        LogPrint("mempool", "Removed %u txn, rolling minimum fee bumped to %s\n", nTxnRemoved, maxFeeRateRemoved.ToString());
+    if (maxFeeRateRemoved > CFeeRate(0)) {
+        LogPrint(BCLog::MEMPOOL, "Removed %u txn, rolling minimum fee bumped to %s\n", nTxnRemoved, maxFeeRateRemoved.ToString());
+    }
 }
 
 bool CTxMemPool::TransactionWithinChainLimit(const uint256& txid, size_t chainLimit) const {
diff --git a/src/util.cpp b/src/util.cpp
index a997199fb0..766826da49 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -110,7 +110,6 @@ CCriticalSection cs_args;
 std::map<std::string, std::string> mapArgs;
 static std::map<std::string, std::vector<std::string> > _mapMultiArgs;
 const std::map<std::string, std::vector<std::string> >& mapMultiArgs = _mapMultiArgs;
-bool fDebug = false;
 bool fPrintToConsole = false;
 bool fPrintToDebugLog = true;
 
@@ -120,6 +119,9 @@ bool fLogIPs = DEFAULT_LOGIPS;
 std::atomic<bool> fReopenDebugLog(false);
 CTranslationInterface translationInterface;
 
+/** Log categories bitfield. Leveldb/libevent need special handling if their flags are changed at runtime. */
+std::atomic<uint32_t> logCategories(0);
+
 /** Init OpenSSL library multithreading support */
 static CCriticalSection** ppmutexOpenSSL;
 void locking_callback(int mode, int i, const char* file, int line) NO_THREAD_SAFETY_ANALYSIS
@@ -231,36 +233,70 @@ void OpenDebugLog()
     vMsgsBeforeOpenLog = NULL;
 }
 
-bool LogAcceptCategory(const char* category)
-{
-    if (category != NULL)
-    {
-        if (!fDebug)
-            return false;
-
-        // Give each thread quick access to -debug settings.
-        // This helps prevent issues debugging global destructors,
-        // where mapMultiArgs might be deleted before another
-        // global destructor calls LogPrint()
-        static boost::thread_specific_ptr<std::set<std::string> > ptrCategory;
-        if (ptrCategory.get() == NULL)
-        {
-            if (mapMultiArgs.count("-debug")) {
-                const std::vector<std::string>& categories = mapMultiArgs.at("-debug");
-                ptrCategory.reset(new std::set<std::string>(categories.begin(), categories.end()));
-                // thread_specific_ptr automatically deletes the set when the thread ends.
-            } else
-                ptrCategory.reset(new std::set<std::string>());
+struct CLogCategoryDesc
+{
+    uint32_t flag;
+    std::string category;
+};
+
+const CLogCategoryDesc LogCategories[] =
+{
+    {BCLog::NONE, "0"},
+    {BCLog::NET, "net"},
+    {BCLog::TOR, "tor"},
+    {BCLog::MEMPOOL, "mempool"},
+    {BCLog::HTTP, "http"},
+    {BCLog::BENCH, "bench"},
+    {BCLog::ZMQ, "zmq"},
+    {BCLog::DB, "db"},
+    {BCLog::RPC, "rpc"},
+    {BCLog::ESTIMATEFEE, "estimatefee"},
+    {BCLog::ADDRMAN, "addrman"},
+    {BCLog::SELECTCOINS, "selectcoins"},
+    {BCLog::REINDEX, "reindex"},
+    {BCLog::CMPCTBLOCK, "cmpctblock"},
+    {BCLog::RAND, "rand"},
+    {BCLog::PRUNE, "prune"},
+    {BCLog::PROXY, "proxy"},
+    {BCLog::MEMPOOLREJ, "mempoolrej"},
+    {BCLog::LIBEVENT, "libevent"},
+    {BCLog::COINDB, "coindb"},
+    {BCLog::QT, "qt"},
+    {BCLog::LEVELDB, "leveldb"},
+    {BCLog::ALL, "1"},
+    {BCLog::ALL, "all"},
+};
+
+bool GetLogCategory(uint32_t *f, const std::string *str)
+{
+    if (f && str) {
+        if (*str == "") {
+            *f = BCLog::ALL;
+            return true;
         }
-        const std::set<std::string>& setCategories = *ptrCategory;
+        for (unsigned int i = 0; i < ARRAYLEN(LogCategories); i++) {
+            if (LogCategories[i].category == *str) {
+                *f = LogCategories[i].flag;
+                return true;
+            }
+        }
+    }
+    return false;
+}
 
-        // if not debugging everything and not debugging specific category, LogPrint does nothing.
-        if (setCategories.count(std::string("")) == 0 &&
-            setCategories.count(std::string("1")) == 0 &&
-            setCategories.count(std::string(category)) == 0)
-            return false;
+std::string ListLogCategories()
+{
+    std::string ret;
+    int outcount = 0;
+    for (unsigned int i = 0; i < ARRAYLEN(LogCategories); i++) {
+        // Omit the special cases.
+        if (LogCategories[i].flag != BCLog::NONE && LogCategories[i].flag != BCLog::ALL) {
+            if (outcount != 0) ret += ", ";
+            ret += LogCategories[i].category;
+            outcount++;
+        }
     }
-    return true;
+    return ret;
 }
 
 /**
diff --git a/src/util.h b/src/util.h
index 61dc0d366c..09481bc01c 100644
--- a/src/util.h
+++ b/src/util.h
@@ -42,7 +42,6 @@ public:
 };
 
 extern const std::map<std::string, std::vector<std::string> >& mapMultiArgs;
-extern bool fDebug;
 extern bool fPrintToConsole;
 extern bool fPrintToDebugLog;
 
@@ -55,6 +54,8 @@ extern CTranslationInterface translationInterface;
 extern const char * const BITCOIN_CONF_FILENAME;
 extern const char * const BITCOIN_PID_FILENAME;
 
+extern std::atomic<uint32_t> logCategories;
+
 /**
  * Translation function: Call Translate signal on UI interface, which returns a boost::optional result.
  * If no translation slot is registered, nothing is returned, and simply return the input.
@@ -68,8 +69,45 @@ inline std::string _(const char* psz)
 void SetupEnvironment();
 bool SetupNetworking();
 
+namespace BCLog {
+    enum LogFlags : uint32_t {
+        NONE        = 0,
+        NET         = (1 <<  0),
+        TOR         = (1 <<  1),
+        MEMPOOL     = (1 <<  2),
+        HTTP        = (1 <<  3),
+        BENCH       = (1 <<  4),
+        ZMQ         = (1 <<  5),
+        DB          = (1 <<  6),
+        RPC         = (1 <<  7),
+        ESTIMATEFEE = (1 <<  8),
+        ADDRMAN     = (1 <<  9),
+        SELECTCOINS = (1 << 10),
+        REINDEX     = (1 << 11),
+        CMPCTBLOCK  = (1 << 12),
+        RAND        = (1 << 13),
+        PRUNE       = (1 << 14),
+        PROXY       = (1 << 15),
+        MEMPOOLREJ  = (1 << 16),
+        LIBEVENT    = (1 << 17),
+        COINDB      = (1 << 18),
+        QT          = (1 << 19),
+        LEVELDB     = (1 << 20),
+        ALL         = ~(uint32_t)0,
+    };
+}
 /** Return true if log accepts specified category */
-bool LogAcceptCategory(const char* category);
+static inline bool LogAcceptCategory(uint32_t category)
+{
+    return (logCategories.load(std::memory_order_relaxed) & category) != 0;
+}
+
+/** Returns a string with the supported log categories */
+std::string ListLogCategories();
+
+/** Return true if str parses as a log category and set the flags in f */
+bool GetLogCategory(uint32_t *f, const std::string *str);
+
 /** Send a string to the log output */
 int LogPrintStr(const std::string &str);
 
diff --git a/src/validation.cpp b/src/validation.cpp
index 7737c13e6e..6ade633988 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -540,8 +540,9 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state, bool fChe
 
 void LimitMempoolSize(CTxMemPool& pool, size_t limit, unsigned long age) {
     int expired = pool.Expire(GetTime() - age);
-    if (expired != 0)
-        LogPrint("mempool", "Expired %i transactions from the memory pool\n", expired);
+    if (expired != 0) {
+        LogPrint(BCLog::MEMPOOL, "Expired %i transactions from the memory pool\n", expired);
+    }
 
     std::vector<uint256> vNoSpendsRemaining;
     pool.TrimToSize(limit, &vNoSpendsRemaining);
@@ -955,7 +956,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
         // Remove conflicting transactions from the mempool
         BOOST_FOREACH(const CTxMemPool::txiter it, allConflicting)
         {
-            LogPrint("mempool", "replacing tx %s with %s for %s BTC additional fees, %d delta bytes\n",
+            LogPrint(BCLog::MEMPOOL, "replacing tx %s with %s for %s BTC additional fees, %d delta bytes\n",
                     it->GetTx().GetHash().ToString(),
                     hash.ToString(),
                     FormatMoney(nModifiedFees - nConflictingFees),
@@ -1763,7 +1764,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
     }
 
     int64_t nTime1 = GetTimeMicros(); nTimeCheck += nTime1 - nTimeStart;
-    LogPrint("bench", "    - Sanity checks: %.2fms [%.2fs]\n", 0.001 * (nTime1 - nTimeStart), nTimeCheck * 0.000001);
+    LogPrint(BCLog::BENCH, "    - Sanity checks: %.2fms [%.2fs]\n", 0.001 * (nTime1 - nTimeStart), nTimeCheck * 0.000001);
 
     // Do not allow blocks that contain transactions which 'overwrite' older transactions,
     // unless those are already completely spent.
@@ -1830,7 +1831,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
     }
 
     int64_t nTime2 = GetTimeMicros(); nTimeForks += nTime2 - nTime1;
-    LogPrint("bench", "    - Fork checks: %.2fms [%.2fs]\n", 0.001 * (nTime2 - nTime1), nTimeForks * 0.000001);
+    LogPrint(BCLog::BENCH, "    - Fork checks: %.2fms [%.2fs]\n", 0.001 * (nTime2 - nTime1), nTimeForks * 0.000001);
 
     CBlockUndo blockundo;
 
@@ -1904,7 +1905,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
         pos.nTxOffset += ::GetSerializeSize(tx, SER_DISK, CLIENT_VERSION);
     }
     int64_t nTime3 = GetTimeMicros(); nTimeConnect += nTime3 - nTime2;
-    LogPrint("bench", "      - Connect %u transactions: %.2fms (%.3fms/tx, %.3fms/txin) [%.2fs]\n", (unsigned)block.vtx.size(), 0.001 * (nTime3 - nTime2), 0.001 * (nTime3 - nTime2) / block.vtx.size(), nInputs <= 1 ? 0 : 0.001 * (nTime3 - nTime2) / (nInputs-1), nTimeConnect * 0.000001);
+    LogPrint(BCLog::BENCH, "      - Connect %u transactions: %.2fms (%.3fms/tx, %.3fms/txin) [%.2fs]\n", (unsigned)block.vtx.size(), 0.001 * (nTime3 - nTime2), 0.001 * (nTime3 - nTime2) / block.vtx.size(), nInputs <= 1 ? 0 : 0.001 * (nTime3 - nTime2) / (nInputs-1), nTimeConnect * 0.000001);
 
     CAmount blockReward = nFees + GetBlockSubsidy(pindex->nHeight, chainparams.GetConsensus());
     if (block.vtx[0]->GetValueOut() > blockReward)
@@ -1916,7 +1917,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
     if (!control.Wait())
         return state.DoS(100, false);
     int64_t nTime4 = GetTimeMicros(); nTimeVerify += nTime4 - nTime2;
-    LogPrint("bench", "    - Verify %u txins: %.2fms (%.3fms/txin) [%.2fs]\n", nInputs - 1, 0.001 * (nTime4 - nTime2), nInputs <= 1 ? 0 : 0.001 * (nTime4 - nTime2) / (nInputs-1), nTimeVerify * 0.000001);
+    LogPrint(BCLog::BENCH, "    - Verify %u txins: %.2fms (%.3fms/txin) [%.2fs]\n", nInputs - 1, 0.001 * (nTime4 - nTime2), nInputs <= 1 ? 0 : 0.001 * (nTime4 - nTime2) / (nInputs-1), nTimeVerify * 0.000001);
 
     if (fJustCheck)
         return true;
@@ -1948,7 +1949,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
     view.SetBestBlock(pindex->GetBlockHash());
 
     int64_t nTime5 = GetTimeMicros(); nTimeIndex += nTime5 - nTime4;
-    LogPrint("bench", "    - Index writing: %.2fms [%.2fs]\n", 0.001 * (nTime5 - nTime4), nTimeIndex * 0.000001);
+    LogPrint(BCLog::BENCH, "    - Index writing: %.2fms [%.2fs]\n", 0.001 * (nTime5 - nTime4), nTimeIndex * 0.000001);
 
     // Watch for changes to the previous coinbase transaction.
     static uint256 hashPrevBestCoinBase;
@@ -1957,7 +1958,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
 
 
     int64_t nTime6 = GetTimeMicros(); nTimeCallbacks += nTime6 - nTime5;
-    LogPrint("bench", "    - Callbacks: %.2fms [%.2fs]\n", 0.001 * (nTime6 - nTime5), nTimeCallbacks * 0.000001);
+    LogPrint(BCLog::BENCH, "    - Callbacks: %.2fms [%.2fs]\n", 0.001 * (nTime6 - nTime5), nTimeCallbacks * 0.000001);
 
     return true;
 }
@@ -2164,7 +2165,7 @@ bool static DisconnectTip(CValidationState& state, const CChainParams& chainpara
         bool flushed = view.Flush();
         assert(flushed);
     }
-    LogPrint("bench", "- Disconnect block: %.2fms\n", (GetTimeMicros() - nStart) * 0.001);
+    LogPrint(BCLog::BENCH, "- Disconnect block: %.2fms\n", (GetTimeMicros() - nStart) * 0.001);
     // Write the chain state to disk, if necessary.
     if (!FlushStateToDisk(state, FLUSH_STATE_IF_NEEDED))
         return false;
@@ -2239,7 +2240,7 @@ bool static ConnectTip(CValidationState& state, const CChainParams& chainparams,
     // Apply the block atomically to the chain state.
     int64_t nTime2 = GetTimeMicros(); nTimeReadFromDisk += nTime2 - nTime1;
     int64_t nTime3;
-    LogPrint("bench", "  - Load block from disk: %.2fms [%.2fs]\n", (nTime2 - nTime1) * 0.001, nTimeReadFromDisk * 0.000001);
+    LogPrint(BCLog::BENCH, "  - Load block from disk: %.2fms [%.2fs]\n", (nTime2 - nTime1) * 0.001, nTimeReadFromDisk * 0.000001);
     {
         CCoinsViewCache view(pcoinsTip);
         bool rv = ConnectBlock(blockConnecting, state, pindexNew, view, chainparams);
@@ -2250,25 +2251,25 @@ bool static ConnectTip(CValidationState& state, const CChainParams& chainparams,
             return error("ConnectTip(): ConnectBlock %s failed", pindexNew->GetBlockHash().ToString());
         }
         nTime3 = GetTimeMicros(); nTimeConnectTotal += nTime3 - nTime2;
-        LogPrint("bench", "  - Connect total: %.2fms [%.2fs]\n", (nTime3 - nTime2) * 0.001, nTimeConnectTotal * 0.000001);
+        LogPrint(BCLog::BENCH, "  - Connect total: %.2fms [%.2fs]\n", (nTime3 - nTime2) * 0.001, nTimeConnectTotal * 0.000001);
         bool flushed = view.Flush();
         assert(flushed);
     }
     int64_t nTime4 = GetTimeMicros(); nTimeFlush += nTime4 - nTime3;
-    LogPrint("bench", "  - Flush: %.2fms [%.2fs]\n", (nTime4 - nTime3) * 0.001, nTimeFlush * 0.000001);
+    LogPrint(BCLog::BENCH, "  - Flush: %.2fms [%.2fs]\n", (nTime4 - nTime3) * 0.001, nTimeFlush * 0.000001);
     // Write the chain state to disk, if necessary.
     if (!FlushStateToDisk(state, FLUSH_STATE_IF_NEEDED))
         return false;
     int64_t nTime5 = GetTimeMicros(); nTimeChainState += nTime5 - nTime4;
-    LogPrint("bench", "  - Writing chainstate: %.2fms [%.2fs]\n", (nTime5 - nTime4) * 0.001, nTimeChainState * 0.000001);
+    LogPrint(BCLog::BENCH, "  - Writing chainstate: %.2fms [%.2fs]\n", (nTime5 - nTime4) * 0.001, nTimeChainState * 0.000001);
     // Remove conflicting transactions from the mempool.;
     mempool.removeForBlock(blockConnecting.vtx, pindexNew->nHeight);
     // Update chainActive & related variables.
     UpdateTip(pindexNew, chainparams);
 
     int64_t nTime6 = GetTimeMicros(); nTimePostConnect += nTime6 - nTime5; nTimeTotal += nTime6 - nTime1;
-    LogPrint("bench", "  - Connect postprocess: %.2fms [%.2fs]\n", (nTime6 - nTime5) * 0.001, nTimePostConnect * 0.000001);
-    LogPrint("bench", "- Connect block: %.2fms [%.2fs]\n", (nTime6 - nTime1) * 0.001, nTimeTotal * 0.000001);
+    LogPrint(BCLog::BENCH, "  - Connect postprocess: %.2fms [%.2fs]\n", (nTime6 - nTime5) * 0.001, nTimePostConnect * 0.000001);
+    LogPrint(BCLog::BENCH, "- Connect block: %.2fms [%.2fs]\n", (nTime6 - nTime1) * 0.001, nTimeTotal * 0.000001);
     return true;
 }
 
@@ -3391,7 +3392,7 @@ void FindFilesToPrune(std::set<int>& setFilesToPrune, uint64_t nPruneAfterHeight
         }
     }
 
-    LogPrint("prune", "Prune: target=%dMiB actual=%dMiB diff=%dMiB max_prune_height=%d removed %d blk/rev pairs\n",
+    LogPrint(BCLog::PRUNE, "Prune: target=%dMiB actual=%dMiB diff=%dMiB max_prune_height=%d removed %d blk/rev pairs\n",
            nPruneTarget/1024/1024, nCurrentUsage/1024/1024,
            ((int64_t)nPruneTarget - (int64_t)nCurrentUsage)/1024/1024,
            nLastBlockWeCanPrune, count);
@@ -3885,7 +3886,7 @@ bool LoadExternalBlockFile(const CChainParams& chainparams, FILE* fileIn, CDiskB
                 // detect out of order blocks, and store them for later
                 uint256 hash = block.GetHash();
                 if (hash != chainparams.GetConsensus().hashGenesisBlock && mapBlockIndex.find(block.hashPrevBlock) == mapBlockIndex.end()) {
-                    LogPrint("reindex", "%s: Out of order block %s, parent %s not known\n", __func__, hash.ToString(),
+                    LogPrint(BCLog::REINDEX, "%s: Out of order block %s, parent %s not known\n", __func__, hash.ToString(),
                             block.hashPrevBlock.ToString());
                     if (dbp)
                         mapBlocksUnknownParent.insert(std::make_pair(block.hashPrevBlock, *dbp));
@@ -3901,7 +3902,7 @@ bool LoadExternalBlockFile(const CChainParams& chainparams, FILE* fileIn, CDiskB
                     if (state.IsError())
                         break;
                 } else if (hash != chainparams.GetConsensus().hashGenesisBlock && mapBlockIndex[hash]->nHeight % 1000 == 0) {
-                    LogPrint("reindex", "Block Import: already had block %s at height %d\n", hash.ToString(), mapBlockIndex[hash]->nHeight);
+                    LogPrint(BCLog::REINDEX, "Block Import: already had block %s at height %d\n", hash.ToString(), mapBlockIndex[hash]->nHeight);
                 }
 
                 // Activate the genesis block so normal node progress can continue
@@ -3926,7 +3927,7 @@ bool LoadExternalBlockFile(const CChainParams& chainparams, FILE* fileIn, CDiskB
                         std::shared_ptr<CBlock> pblockrecursive = std::make_shared<CBlock>();
                         if (ReadBlockFromDisk(*pblockrecursive, it->second, chainparams.GetConsensus()))
                         {
-                            LogPrint("reindex", "%s: Processing out of order child %s of %s\n", __func__, pblockrecursive->GetHash().ToString(),
+                            LogPrint(BCLog::REINDEX, "%s: Processing out of order child %s of %s\n", __func__, pblockrecursive->GetHash().ToString(),
                                     head.ToString());
                             LOCK(cs_main);
                             CValidationState dummy;
diff --git a/src/wallet/db.cpp b/src/wallet/db.cpp
index 0801bd7300..d3333bf1ab 100644
--- a/src/wallet/db.cpp
+++ b/src/wallet/db.cpp
@@ -118,7 +118,7 @@ void CDBEnv::MakeMock()
 
     boost::this_thread::interruption_point();
 
-    LogPrint("db", "CDBEnv::MakeMock\n");
+    LogPrint(BCLog::DB, "CDBEnv::MakeMock\n");
 
     dbenv->set_cachesize(1, 0, 1);
     dbenv->set_lg_bsize(10485760 * 4);
@@ -560,7 +560,7 @@ void CDBEnv::Flush(bool fShutdown)
 {
     int64_t nStart = GetTimeMillis();
     // Flush log data to the actual data file on all files that are not in use
-    LogPrint("db", "CDBEnv::Flush: Flush(%s)%s\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " database not started");
+    LogPrint(BCLog::DB, "CDBEnv::Flush: Flush(%s)%s\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " database not started");
     if (!fDbEnvInit)
         return;
     {
@@ -569,21 +569,21 @@ void CDBEnv::Flush(bool fShutdown)
         while (mi != mapFileUseCount.end()) {
             std::string strFile = (*mi).first;
             int nRefCount = (*mi).second;
-            LogPrint("db", "CDBEnv::Flush: Flushing %s (refcount = %d)...\n", strFile, nRefCount);
+            LogPrint(BCLog::DB, "CDBEnv::Flush: Flushing %s (refcount = %d)...\n", strFile, nRefCount);
             if (nRefCount == 0) {
                 // Move log data to the dat file
                 CloseDb(strFile);
-                LogPrint("db", "CDBEnv::Flush: %s checkpoint\n", strFile);
+                LogPrint(BCLog::DB, "CDBEnv::Flush: %s checkpoint\n", strFile);
                 dbenv->txn_checkpoint(0, 0, 0);
-                LogPrint("db", "CDBEnv::Flush: %s detach\n", strFile);
+                LogPrint(BCLog::DB, "CDBEnv::Flush: %s detach\n", strFile);
                 if (!fMockDb)
                     dbenv->lsn_reset(strFile.c_str(), 0);
-                LogPrint("db", "CDBEnv::Flush: %s closed\n", strFile);
+                LogPrint(BCLog::DB, "CDBEnv::Flush: %s closed\n", strFile);
                 mapFileUseCount.erase(mi++);
             } else
                 mi++;
         }
-        LogPrint("db", "CDBEnv::Flush: Flush(%s)%s took %15dms\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " database not started", GetTimeMillis() - nStart);
+        LogPrint(BCLog::DB, "CDBEnv::Flush: Flush(%s)%s took %15dms\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " database not started", GetTimeMillis() - nStart);
         if (fShutdown) {
             char** listp;
             if (mapFileUseCount.empty()) {
@@ -617,7 +617,7 @@ bool CDB::PeriodicFlush(std::string strFile)
             std::map<std::string, int>::iterator mi = bitdb.mapFileUseCount.find(strFile);
             if (mi != bitdb.mapFileUseCount.end())
             {
-                LogPrint("db", "Flushing %s\n", strFile);
+                LogPrint(BCLog::DB, "Flushing %s\n", strFile);
                 int64_t nStart = GetTimeMillis();
 
                 // Flush wallet file so it's self contained
@@ -625,7 +625,7 @@ bool CDB::PeriodicFlush(std::string strFile)
                 bitdb.CheckpointLSN(strFile);
 
                 bitdb.mapFileUseCount.erase(mi++);
-                LogPrint("db", "Flushed %s %dms\n", strFile, GetTimeMillis() - nStart);
+                LogPrint(BCLog::DB, "Flushed %s %dms\n", strFile, GetTimeMillis() - nStart);
                 ret = true;
             }
         }
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 22b1e3522c..ccb744c6b2 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -3028,7 +3028,7 @@ UniValue bumpfee(const JSONRPCRequest& request)
     // If the output would become dust, discard it (converting the dust to fee)
     poutput->nValue -= nDelta;
     if (poutput->nValue <= poutput->GetDustThreshold(::dustRelayFee)) {
-        LogPrint("rpc", "Bumping fee and discarding dust output\n");
+        LogPrint(BCLog::RPC, "Bumping fee and discarding dust output\n");
         nNewFee += poutput->nValue;
         tx.vout.erase(tx.vout.begin() + nOutput);
     }
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index e631c86bb2..68d4bc35ee 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -2172,11 +2172,15 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMin
                 nValueRet += vValue[i].first;
             }
 
-        LogPrint("selectcoins", "SelectCoins() best subset: ");
-        for (unsigned int i = 0; i < vValue.size(); i++)
-            if (vfBest[i])
-                LogPrint("selectcoins", "%s ", FormatMoney(vValue[i].first));
-        LogPrint("selectcoins", "total %s\n", FormatMoney(nBest));
+        if (LogAcceptCategory(BCLog::SELECTCOINS)) {
+            LogPrint(BCLog::SELECTCOINS, "SelectCoins() best subset: ");
+            for (unsigned int i = 0; i < vValue.size(); i++) {
+                if (vfBest[i]) {
+                    LogPrint(BCLog::SELECTCOINS, "%s ", FormatMoney(vValue[i].first));
+                }
+            }
+            LogPrint(BCLog::SELECTCOINS, "total %s\n", FormatMoney(nBest));
+        }
     }
 
     return true;
diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp
index d017965385..73d79eb452 100644
--- a/src/wallet/walletdb.cpp
+++ b/src/wallet/walletdb.cpp
@@ -745,7 +745,7 @@ DBErrors CWalletDB::ZapSelectTx(std::vector<uint256>& vTxHashIn, std::vector<uin
         }
         else if ((*it) == hash) {
             if(!EraseTx(hash)) {
-                LogPrint("db", "Transaction was found for deletion but returned database error: %s\n", hash.GetHex());
+                LogPrint(BCLog::DB, "Transaction was found for deletion but returned database error: %s\n", hash.GetHex());
                 delerror = true;
             }
             vTxHashOut.push_back(hash);
diff --git a/src/zmq/zmqnotificationinterface.cpp b/src/zmq/zmqnotificationinterface.cpp
index 431d8c9ac9..fac2a3c57a 100644
--- a/src/zmq/zmqnotificationinterface.cpp
+++ b/src/zmq/zmqnotificationinterface.cpp
@@ -12,7 +12,7 @@
 
 void zmqError(const char *str)
 {
-    LogPrint("zmq", "zmq: Error: %s, errno=%s\n", str, zmq_strerror(errno));
+    LogPrint(BCLog::ZMQ, "zmq: Error: %s, errno=%s\n", str, zmq_strerror(errno));
 }
 
 CZMQNotificationInterface::CZMQNotificationInterface() : pcontext(NULL)
@@ -72,7 +72,7 @@ CZMQNotificationInterface* CZMQNotificationInterface::Create()
 // Called at startup to conditionally set up ZMQ socket(s)
 bool CZMQNotificationInterface::Initialize()
 {
-    LogPrint("zmq", "zmq: Initialize notification interface\n");
+    LogPrint(BCLog::ZMQ, "zmq: Initialize notification interface\n");
     assert(!pcontext);
 
     pcontext = zmq_init(1);
@@ -89,11 +89,11 @@ bool CZMQNotificationInterface::Initialize()
         CZMQAbstractNotifier *notifier = *i;
         if (notifier->Initialize(pcontext))
         {
-            LogPrint("zmq", "  Notifier %s ready (address = %s)\n", notifier->GetType(), notifier->GetAddress());
+            LogPrint(BCLog::ZMQ, "  Notifier %s ready (address = %s)\n", notifier->GetType(), notifier->GetAddress());
         }
         else
         {
-            LogPrint("zmq", "  Notifier %s failed (address = %s)\n", notifier->GetType(), notifier->GetAddress());
+            LogPrint(BCLog::ZMQ, "  Notifier %s failed (address = %s)\n", notifier->GetType(), notifier->GetAddress());
             break;
         }
     }
@@ -109,13 +109,13 @@ bool CZMQNotificationInterface::Initialize()
 // Called during shutdown sequence
 void CZMQNotificationInterface::Shutdown()
 {
-    LogPrint("zmq", "zmq: Shutdown notification interface\n");
+    LogPrint(BCLog::ZMQ, "zmq: Shutdown notification interface\n");
     if (pcontext)
     {
         for (std::list<CZMQAbstractNotifier*>::iterator i=notifiers.begin(); i!=notifiers.end(); ++i)
         {
             CZMQAbstractNotifier *notifier = *i;
-            LogPrint("zmq", "   Shutdown notifier %s at %s\n", notifier->GetType(), notifier->GetAddress());
+            LogPrint(BCLog::ZMQ, "   Shutdown notifier %s at %s\n", notifier->GetType(), notifier->GetAddress());
             notifier->Shutdown();
         }
         zmq_ctx_destroy(pcontext);
diff --git a/src/zmq/zmqpublishnotifier.cpp b/src/zmq/zmqpublishnotifier.cpp
index 4e13cbcaf4..b2963e9bde 100644
--- a/src/zmq/zmqpublishnotifier.cpp
+++ b/src/zmq/zmqpublishnotifier.cpp
@@ -89,7 +89,7 @@ bool CZMQAbstractPublishNotifier::Initialize(void *pcontext)
     }
     else
     {
-        LogPrint("zmq", "zmq: Reusing socket for address %s\n", address);
+        LogPrint(BCLog::ZMQ, "zmq: Reusing socket for address %s\n", address);
 
         psocket = i->second->psocket;
         mapPublishNotifiers.insert(std::make_pair(address, this));
@@ -119,7 +119,7 @@ void CZMQAbstractPublishNotifier::Shutdown()
 
     if (count == 1)
     {
-        LogPrint("zmq", "Close socket at address %s\n", address);
+        LogPrint(BCLog::ZMQ, "Close socket at address %s\n", address);
         int linger = 0;
         zmq_setsockopt(psocket, ZMQ_LINGER, &linger, sizeof(linger));
         zmq_close(psocket);
@@ -148,7 +148,7 @@ bool CZMQAbstractPublishNotifier::SendMessage(const char *command, const void* d
 bool CZMQPublishHashBlockNotifier::NotifyBlock(const CBlockIndex *pindex)
 {
     uint256 hash = pindex->GetBlockHash();
-    LogPrint("zmq", "zmq: Publish hashblock %s\n", hash.GetHex());
+    LogPrint(BCLog::ZMQ, "zmq: Publish hashblock %s\n", hash.GetHex());
     char data[32];
     for (unsigned int i = 0; i < 32; i++)
         data[31 - i] = hash.begin()[i];
@@ -158,7 +158,7 @@ bool CZMQPublishHashBlockNotifier::NotifyBlock(const CBlockIndex *pindex)
 bool CZMQPublishHashTransactionNotifier::NotifyTransaction(const CTransaction &transaction)
 {
     uint256 hash = transaction.GetHash();
-    LogPrint("zmq", "zmq: Publish hashtx %s\n", hash.GetHex());
+    LogPrint(BCLog::ZMQ, "zmq: Publish hashtx %s\n", hash.GetHex());
     char data[32];
     for (unsigned int i = 0; i < 32; i++)
         data[31 - i] = hash.begin()[i];
@@ -167,7 +167,7 @@ bool CZMQPublishHashTransactionNotifier::NotifyTransaction(const CTransaction &t
 
 bool CZMQPublishRawBlockNotifier::NotifyBlock(const CBlockIndex *pindex)
 {
-    LogPrint("zmq", "zmq: Publish rawblock %s\n", pindex->GetBlockHash().GetHex());
+    LogPrint(BCLog::ZMQ, "zmq: Publish rawblock %s\n", pindex->GetBlockHash().GetHex());
 
     const Consensus::Params& consensusParams = Params().GetConsensus();
     CDataStream ss(SER_NETWORK, PROTOCOL_VERSION | RPCSerializationFlags());
@@ -189,7 +189,7 @@ bool CZMQPublishRawBlockNotifier::NotifyBlock(const CBlockIndex *pindex)
 bool CZMQPublishRawTransactionNotifier::NotifyTransaction(const CTransaction &transaction)
 {
     uint256 hash = transaction.GetHash();
-    LogPrint("zmq", "zmq: Publish rawtx %s\n", hash.GetHex());
+    LogPrint(BCLog::ZMQ, "zmq: Publish rawtx %s\n", hash.GetHex());
     CDataStream ss(SER_NETWORK, PROTOCOL_VERSION | RPCSerializationFlags());
     ss << transaction;
     return SendMessage(MSG_RAWTX, &(*ss.begin()), ss.size());