server: initial support for daemonizing

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/server.h b/server.h
index 8e6852a..008cb25 100644
--- a/server.h
+++ b/server.h
@@ -38,7 +38,7 @@
 					2 * sizeof(uint16_t),
 };
 
-extern int fio_server(void);
+extern int fio_start_server(int);
 extern int fio_server_text_output(const char *, unsigned int len);
 extern int fio_server_log(const char *format, ...);
 extern int fio_net_send_cmd(int, uint16_t, const char *, off_t);