Start of functional client

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/fio.h b/fio.h
index d36ee16..e46a1a3 100644
--- a/fio.h
+++ b/fio.h
@@ -35,6 +35,7 @@
 #include "time.h"
 #include "lib/getopt.h"
 #include "lib/rand.h"
+#include "server.h"
 
 #ifdef FIO_HAVE_GUASI
 #include <guasi.h>
@@ -651,6 +652,7 @@
 extern int warnings_fatal;
 extern int terse_version;
 extern int is_backend;
+extern int is_client;
 
 extern struct thread_data *threads;