Writes audit log in parallel mode

First version still missing the index among other things

src/utils.cc

@@ -24,6 +24,13 @@
 #include <memory>
 #include <functional>
 
+#if defined _MSC_VER
+#include <direct.h>
+#elif defined __GNUC__
+#include <sys/types.h>
+#include <sys/stat.h>
+#endif
+
 #include "modsecurity/modsecurity.h"
 
 namespace ModSecurity {
@@ -62,5 +69,13 @@ std::string ascTime(time_t *t) {
 }
 
 
+void createDir(std::string dir) {
+#if defined _MSC_VER
+    _mkdir(dir.data());
+#elif defined __GNUC__
+    mkdir(dir.data(), 0777);
+#endif
+}
+
 }  // namespace ModSecurity