-int Sys_FileOpenWrite (char *path);
-void Sys_FileClose (int handle);
-void Sys_FileSeek (int handle, int position);
-int Sys_FileRead (int handle, void *dest, int count);
-int Sys_FileWrite (int handle, void *data, int count);
-int Sys_FileTime (char *path);
-void Sys_mkdir (char *path);
+// called after Com_InitArgv
+void Sys_Shared_EarlyInit (void);
+// called after Host_init
+void Sys_Shared_LateInit (void);
+
+// returns current timestamp
+char *Sys_TimeString(const char *timeformat);