ovs-controller: Make --with-flows read the file only once, at startup.

A couple of people have reported that ovs-controller --with-flows is
confusing.  This seems to be because it doesn't read the file with the
flows until the first connection from a switch.  Then, if the file has a
syntax error, it exits.

This commit changes the behavior so that it reads the file immediately at
startup instead.

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/learning-switch.h b/lib/learning-switch.h
index 96707b84..edb31549 100644
--- a/lib/learning-switch.h
+++ b/lib/learning-switch.h
@@ -26,7 +26,8 @@ struct rconn;
 
 struct lswitch *lswitch_create(struct rconn *, bool learn_macs,
                                bool exact_flows, int max_idle,
-                               bool action_normal, FILE *default_flows);
+                               bool action_normal,
+                               const struct ofpbuf *default_flows);
 void lswitch_set_queue(struct lswitch *sw, uint32_t queue);
 void lswitch_run(struct lswitch *);
 void lswitch_wait(struct lswitch *);