vconn: Fix parameters for vconn_open(), vconn_open_block(), pvconn_open().

[sliver-openvswitch.git] / ofproto / connmgr.c

diff --git a/ofproto/connmgr.c b/ofproto/connmgr.c
index 77b7b39..1dc9082 100644 (file)
--- a/ofproto/connmgr.c
+++ b/ofproto/connmgr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc.
+ * Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -154,6 +154,9 @@ struct connmgr {
     /* OpenFlow connections. */
     struct hmap controllers;   /* Controller "struct ofconn"s. */
     struct list all_conns;     /* Contains "struct ofconn"s. */
+    uint64_t master_election_id; /* monotonically increasing sequence number
+                                  * for master election */
+    bool master_election_id_defined;
 
     /* OpenFlow listeners. */
     struct hmap services;       /* Contains "struct ofservice"s. */
@@ -193,6 +196,8 @@ connmgr_create(struct ofproto *ofproto,
 
     hmap_init(&mgr->controllers);
     list_init(&mgr->all_conns);
+    mgr->master_election_id = 0;
+    mgr->master_election_id_defined = false;
 
     hmap_init(&mgr->services);
     mgr->snoops = NULL;
@@ -748,7 +753,7 @@ set_pvconns(struct pvconn ***pvconnsp, size_t *n_pvconnsp,
     SSET_FOR_EACH (name, sset) {
         struct pvconn *pvconn;
         int error;
-        error = pvconn_open(name, 0, &pvconn, 0);
+        error = pvconn_open(name, 0, 0, &pvconn);
         if (!error) {
             pvconns[n_pvconns++] = pvconn;
         } else {
@@ -817,6 +822,26 @@ ofconn_get_type(const struct ofconn *ofconn)
     return ofconn->type;
 }
 
+/* Sets the master election id.
+ *
+ * Returns true if successful, false if the id is stale
+ */
+bool
+ofconn_set_master_election_id(struct ofconn *ofconn, uint64_t id)
+{
+    if (ofconn->connmgr->master_election_id_defined
+        &&
+        /* Unsigned difference interpreted as a two's complement signed
+         * value */
+        (int64_t)(id - ofconn->connmgr->master_election_id) < 0) {
+        return false;
+    }
+    ofconn->connmgr->master_election_id = id;
+    ofconn->connmgr->master_election_id_defined = true;
+
+    return true;
+}
+
 /* Returns the role configured for 'ofconn'.
  *
  * The default role, if no other role has been set, is NX_ROLE_OTHER. */
@@ -1665,7 +1690,7 @@ ofservice_create(struct connmgr *mgr, const char *target,
     struct pvconn *pvconn;
     int error;
 
-    error = pvconn_open(target, allowed_versions, &pvconn, dscp);
+    error = pvconn_open(target, allowed_versions, dscp, &pvconn);
     if (error) {
         return error;
     }