easylogging++: add categories getter

external/easylogging++/easylogging++.cc

@@ -1961,8 +1961,13 @@ void VRegistry::setCategories(const char* categories, bool clear) {
     m_categories.push_back(std::make_pair(ss.str(), level));
   };
 
-  if (clear)
+  if (clear) {
     m_categories.clear();
+    m_categoriesString.clear();
+  }
+  if (!m_categoriesString.empty())
+    m_categoriesString += ",";
+  m_categoriesString += categories;
   if (!categories)
     return;
 
@@ -2001,6 +2006,11 @@ void VRegistry::setCategories(const char* categories, bool clear) {
   }
 }
 
+std::string VRegistry::getCategories() {
+  base::threading::ScopedLock scopedLock(lock());
+  return m_categoriesString;
+}
+
 // Log levels are sorted in a weird way...
 static int priority(Level level) {
   if (level == Level::Fatal) return 0;
@@ -3073,6 +3083,10 @@ void Loggers::setCategories(const char* categories, bool clear) {
   ELPP->vRegistry()->setCategories(categories, clear);
 }
 
+std::string Loggers::getCategories() {
+  return ELPP->vRegistry()->getCategories();
+}
+
 void Loggers::clearCategories(void) {
   ELPP->vRegistry()->clearCategories();
 }

external/easylogging++/easylogging++.h

@@ -2488,6 +2488,8 @@ class VRegistry : base::NoCopy, public base::threading::ThreadSafe {
 
   void setCategories(const char* categories, bool clear = true);
 
+  std::string getCategories();
+
   void setModules(const char* modules);
 
   bool allowed(Level level, const char* category);
@@ -2518,6 +2520,7 @@ class VRegistry : base::NoCopy, public base::threading::ThreadSafe {
   base::type::EnumType* m_pFlags;
   std::map<std::string, base::type::VerboseLevel> m_modules;
   std::deque<std::pair<std::string, Level>> m_categories;
+  std::string m_categoriesString;
   std::string m_filenameCommonPrefix;
 };
 }  // namespace base
@@ -3953,6 +3956,8 @@ class Loggers : base::StaticClass {
   static void setVModules(const char* modules);
   /// @brief Sets categories as specified (on the fly)
   static void setCategories(const char* categories, bool clear = true);
+  /// @brief Gets current categories
+  static std::string getCategories();
   /// @brief Clears vmodules
   static void clearVModules(void);
   /// @brief Clears categories