net/colo-compare.c: Fix comments and scheme
authorZhang Chen <zhangchen.fnst@cn.fujitsu.com>
Tue, 5 Sep 2017 06:31:06 +0000 (14:31 +0800)
committerJason Wang <jasowang@redhat.com>
Fri, 8 Sep 2017 00:19:30 +0000 (08:19 +0800)
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
net/colo-compare.c

index f480315753956f5482aff9ccf8667d9770f19fe7..eee33b87a87a58d68f9485072c972b49b2263bfa 100644 (file)
 #define REGULAR_PACKET_CHECK_MS 3000
 
 /*
-  + CompareState ++
-  |               |
-  +---------------+   +---------------+         +---------------+
-  |conn list      +--->conn           +--------->conn           |
-  +---------------+   +---------------+         +---------------+
-  |               |     |           |             |          |
-  +---------------+ +---v----+  +---v----+    +---v----+ +---v----+
-                    |primary |  |secondary    |primary | |secondary
-                    |packet  |  |packet  +    |packet  | |packet  +
-                    +--------+  +--------+    +--------+ +--------+
-                        |           |             |          |
-                    +---v----+  +---v----+    +---v----+ +---v----+
-                    |primary |  |secondary    |primary | |secondary
-                    |packet  |  |packet  +    |packet  | |packet  +
-                    +--------+  +--------+    +--------+ +--------+
-                        |           |             |          |
-                    +---v----+  +---v----+    +---v----+ +---v----+
-                    |primary |  |secondary    |primary | |secondary
-                    |packet  |  |packet  +    |packet  | |packet  +
-                    +--------+  +--------+    +--------+ +--------+
-*/
 + CompareState ++
 |               |
 +---------------+   +---------------+         +---------------+
+ *  |   conn list   + - >      conn     + ------- >      conn     + -- > ......
 +---------------+   +---------------+         +---------------+
 |               |     |           |             |          |
 +---------------+ +---v----+  +---v----+    +---v----+ +---v----+
                   |primary |  |secondary    |primary | |secondary
                   |packet  |  |packet  +    |packet  | |packet  +
                   +--------+  +--------+    +--------+ +--------+
                       |           |             |          |
                   +---v----+  +---v----+    +---v----+ +---v----+
                   |primary |  |secondary    |primary | |secondary
                   |packet  |  |packet  +    |packet  | |packet  +
                   +--------+  +--------+    +--------+ +--------+
                       |           |             |          |
                   +---v----+  +---v----+    +---v----+ +---v----+
                   |primary |  |secondary    |primary | |secondary
                   |packet  |  |packet  +    |packet  | |packet  +
                   +--------+  +--------+    +--------+ +--------+
+ */
 typedef struct CompareState {
     Object parent;
 
@@ -75,14 +75,14 @@ typedef struct CompareState {
     SocketReadState sec_rs;
     bool vnet_hdr;
 
-    /* connection list: the connections belonged to this NIC could be found
-     * in this list.
-     * element type: Connection
+    /*
+     * Record the connection that through the NIC
+     * Element type: Connection
      */
     GQueue conn_list;
-    /* hashtable to save connection */
+    /* Record the connection without repetition */
     GHashTable *connection_track_table;
-    /* compare thread, a thread for each NIC */
+    /* This thread just do packet compare job */
     QemuThread thread;
 
     GMainContext *worker_context;
@@ -445,8 +445,11 @@ static int colo_old_packet_check_one_conn(Connection *conn,
                                  (GCompareFunc)colo_old_packet_check_one);
 
     if (result) {
-        /* do checkpoint will flush old packet */
-        /* TODO: colo_notify_checkpoint();*/
+        /* Do checkpoint will flush old packet */
+        /*
+         * TODO: Notify colo frame to do checkpoint.
+         * colo_compare_inconsistent_notify();
+         */
         return 0;
     }