From 68f045de8ce886ce638289e34db4a2649e2ed23c Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Thu, 6 Dec 2018 00:38:24 +0000
Subject: [PATCH] easylogging++: check allowed categories before logging

---
 contrib/epee/include/misc_log_ex.h      | 23 +++++++++++++++--------
 external/easylogging++/easylogging++.cc | 19 +++++++++++++++++++
 external/easylogging++/easylogging++.h  |  2 ++
 3 files changed, 36 insertions(+), 8 deletions(-)

diff --git a/contrib/epee/include/misc_log_ex.h b/contrib/epee/include/misc_log_ex.h
index 9100a8db3..1ff9da3a7 100644
--- a/contrib/epee/include/misc_log_ex.h
+++ b/contrib/epee/include/misc_log_ex.h
@@ -38,14 +38,21 @@
 #define MAX_LOG_FILE_SIZE 104850000 // 100 MB - 7600 bytes
 #define MAX_LOG_FILES 50
 
-#define MCFATAL(cat,x) CLOG(FATAL,cat) << x
-#define MCERROR(cat,x) CLOG(ERROR,cat) << x
-#define MCWARNING(cat,x) CLOG(WARNING,cat) << x
-#define MCINFO(cat,x) CLOG(INFO,cat) << x
-#define MCDEBUG(cat,x) CLOG(DEBUG,cat) << x
-#define MCTRACE(cat,x) CLOG(TRACE,cat) << x
-#define MCLOG(level,cat,x) ELPP_WRITE_LOG(el::base::Writer, level, el::base::DispatchAction::NormalLog, cat) << x
-#define MCLOG_FILE(level,cat,x) ELPP_WRITE_LOG(el::base::Writer, level, el::base::DispatchAction::FileOnlyLog, cat) << x
+#define MCLOG_TYPE(level, cat, type, x) do { \
+    if (ELPP->vRegistry()->allowed(level, cat)) { \
+      el::base::Writer(level, __FILE__, __LINE__, ELPP_FUNC, type).construct(cat) << x; \
+    } \
+  } while (0)
+
+#define MCLOG(level, cat, x) MCLOG_TYPE(level, cat, el::base::DispatchAction::NormalLog, x)
+#define MCLOG_FILE(level, cat, x) MCLOG_TYPE(level, cat, el::base::DispatchAction::FileOnlyLog, x)
+
+#define MCFATAL(cat,x) MCLOG(el::Level::Fatal,cat, x)
+#define MCERROR(cat,x) MCLOG(el::Level::Error,cat, x)
+#define MCWARNING(cat,x) MCLOG(el::Level::Warning,cat, x)
+#define MCINFO(cat,x) MCLOG(el::Level::Info,cat, x)
+#define MCDEBUG(cat,x) MCLOG(el::Level::Debug,cat, x)
+#define MCTRACE(cat,x) MCLOG(el::Level::Trace,cat, x)
 
 #define MCLOG_COLOR(level,cat,color,x) MCLOG(level,cat,"\033[1;" color "m" << x << "\033[0m")
 #define MCLOG_RED(level,cat,x) MCLOG_COLOR(level,cat,"31",x)
diff --git a/external/easylogging++/easylogging++.cc b/external/easylogging++/easylogging++.cc
index d57f3f3a0..aa8c80a8a 100644
--- a/external/easylogging++/easylogging++.cc
+++ b/external/easylogging++/easylogging++.cc
@@ -2699,6 +2699,12 @@ Writer& Writer::construct(int count, const char* loggerIds, ...) {
   return *this;
 }
 
+Writer& Writer::construct(const char *loggerId) {
+  initializeLogger(ELPP->registeredLoggers()->get(loggerId, ELPP->hasFlag(LoggingFlag::CreateLoggerAutomatically)));
+  m_messageBuilder.initialize(m_logger);
+  return *this;
+}
+
 void Writer::initializeLogger(const std::string& loggerId, bool lookup, bool needLock) {
   if (lookup) {
     m_logger = ELPP->registeredLoggers()->get(loggerId, ELPP->hasFlag(LoggingFlag::CreateLoggerAutomatically));
@@ -2727,6 +2733,19 @@ void Writer::initializeLogger(const std::string& loggerId, bool lookup, bool nee
   }
 }
 
+void Writer::initializeLogger(Logger *logger, bool needLock) {
+  m_logger = logger;
+  if (m_logger == nullptr) {
+    m_proceed = false;
+  } else {
+    if (needLock) {
+      m_logger->acquireLock();  // This should not be unlocked by checking m_proceed because
+      // m_proceed can be changed by lines below
+    }
+    m_proceed = true;
+  }
+}
+
 void Writer::processDispatch() {
 #if ELPP_LOGGING_ENABLED
   if (ELPP->hasFlag(LoggingFlag::MultiLoggerSupport)) {
diff --git a/external/easylogging++/easylogging++.h b/external/easylogging++/easylogging++.h
index 046252a5b..a642d2748 100644
--- a/external/easylogging++/easylogging++.h
+++ b/external/easylogging++/easylogging++.h
@@ -3290,6 +3290,7 @@ class Writer : base::NoCopy {
 
   Writer& construct(Logger* logger, bool needLock = true);
   Writer& construct(int count, const char* loggerIds, ...);
+  Writer& construct(const char *loggerId);
  protected:
   LogMessage* m_msg;
   Level m_level;
@@ -3305,6 +3306,7 @@ class Writer : base::NoCopy {
   friend class el::Helpers;
 
   void initializeLogger(const std::string& loggerId, bool lookup = true, bool needLock = true);
+  void initializeLogger(Logger *logger, bool needLock = true);
   void processDispatch();
   void triggerDispatch(void);
 };