- add implement job related objs based on librtti

- add lock()/unlock() to job object

src/include/kv.h

@@ -3,10 +3,12 @@
 #define _KV_H_ 1
 
 #include <rtti.h>
-
-typedef void (*kv_value_kill_fn_t)(void*);
+#include <stdlib.h>
+#include <sys/types.h>
 
 extern typeinfo_t kvtab_int64_type;
 extern typeinfo_t kvtab_string_type;
+extern typeinfo_t kvtab_generic_type;
 
+extern int key_cmp_default(void*, void*, size_t);
 #endif