Place FmtLogMessage's definition in backend.cpp

I decided to overload LogMessage because I don't see a reason to come up with a new function name just for this, but if you guys want me to overload FmtLogMessage instead I'm fine with that.

src/common/logging/backend.cpp

@@ -153,9 +153,12 @@ void LogMessage(Class log_class, Level log_level, const char* filename, unsigned
     PrintColoredMessage(entry);
 }
 
-void LogEntry(Entry& entry) {
+void LogMessage(Class log_class, Level log_level, const char* filename, unsigned int line_num,
-    if (filter && !filter->CheckMessage(entry.log_class, entry.log_level))
+                const char* function, const char* format, const fmt::format_args& args) {
+    if (filter && !filter->CheckMessage(log_class, log_level))
         return;
+    Entry entry =
+        CreateEntry(log_class, log_level, filename, line_num, function, fmt::vformat(format, args));
 
     PrintColoredMessage(entry);
 }

src/common/logging/backend.h

@@ -14,6 +14,26 @@ namespace Log {
 
 class Filter;
 
+/**
+ * A log entry. Log entries are store in a structured format to permit more varied output
+ * formatting on different frontends, as well as facilitating filtering and aggregation.
+ */
+struct Entry {
+    std::chrono::microseconds timestamp;
+    Class log_class;
+    Level log_level;
+    std::string filename;
+    unsigned int line_num;
+    std::string function;
+    std::string message;
+
+    Entry() = default;
+    Entry(Entry&& o) = default;
+
+    Entry& operator=(Entry&& o) = default;
+    Entry& operator=(const Entry& o) = default;
+};
+
 /**
  * Returns the name of the passed log class as a C-string. Subclasses are separated by periods
  * instead of underscores as in the enumeration.
@@ -25,5 +45,9 @@ const char* GetLogClassName(Class log_class);
  */
 const char* GetLevelName(Level log_level);
 
+/// Creates a log entry by formatting the given source location, and message.
+Entry CreateEntry(Class log_class, Level log_level, const char* filename, unsigned int line_nr,
+                  const char* function, std::string message);
+
 void SetFilter(Filter* filter);
 } // namespace Log

src/common/logging/log.h

@@ -99,33 +99,6 @@ enum class Class : ClassType {
     Count              ///< Total number of logging classes
 };
 
-/**
- * A log entry. Log entries are store in a structured format to permit more varied output
- * formatting on different frontends, as well as facilitating filtering and aggregation.
- */
-struct Entry {
-    std::chrono::microseconds timestamp;
-    Class log_class;
-    Level log_level;
-    std::string filename;
-    unsigned int line_num;
-    std::string function;
-    std::string message;
-
-    Entry() = default;
-    Entry(Entry&& o) = default;
-
-    Entry& operator=(Entry&& o) = default;
-    Entry& operator=(const Entry& o) = default;
-};
-
-/// Creates a log entry by formatting the given source location, and message.
-Entry CreateEntry(Class log_class, Level log_level, const char* filename, unsigned int line_nr,
-                  const char* function, std::string message);
-
-// Logs an Entry
-void LogEntry(Entry& entry);
-
 /// Logs a message to the global logger.
 void LogMessage(Class log_class, Level log_level, const char* filename, unsigned int line_num,
                 const char* function,
@@ -139,14 +112,14 @@ void LogMessage(Class log_class, Level log_level, const char* filename, unsigned
 #endif
     ;
 
-/// Logs a message to the global logger, this time with 100% moar fmtlib
+/// Logs a message to the global logger, using fmt
+void LogMessage(Class log_class, Level log_level, const char* filename, unsigned int line_num,
+                const char* function, const char* format, const fmt::format_args& args);
+
 template <typename... Args>
 void FmtLogMessage(Class log_class, Level log_level, const char* filename, unsigned int line_num,
                    const char* function, const char* format, const Args&... args) {
-    Entry entry = CreateEntry(log_class, log_level, filename, line_num, function,
+    LogMessage(log_class, log_level, filename, line_num, function, format, fmt::make_args(args...));
-                              fmt::format(format, args...));
-
-    LogEntry(entry);
 }
 
 } // namespace Log