runmodes: add funcs to check if file loggers enabled

Add functions to check if file/filedata loggers are enabled.

src/runmodes.c

@@ -436,6 +436,16 @@ static TmModule *file_logger_module = NULL;
 static TmModule *filedata_logger_module = NULL;
 static TmModule *streaming_logger_module = NULL;
 
+int RunModeOutputFileEnabled(void)
+{
+    return (file_logger_module != NULL);
+}
+
+int RunModeOutputFiledataEnabled(void)
+{
+    return (filedata_logger_module != NULL);
+}
+
 /**
  * Cleanup the run mode.
  */

src/runmodes.h

@@ -72,6 +72,11 @@ void RunModeInitializeOutputs(void);
 void SetupOutputs(ThreadVars *);
 void RunModeShutDown(void);
 
+/* bool indicating if file logger is enabled */
+int RunModeOutputFileEnabled(void);
+/* bool indicating if filedata logger is enabled */
+int RunModeOutputFiledataEnabled(void);
+
 #include "runmode-pcap.h"
 #include "runmode-pcap-file.h"
 #include "runmode-pfring.h"