migration: Export a function that tells if the migration has finished correctly

This will allow us to hide the state values.

Signed-off-by: Juan Quintela <quintela@redhat.com>

migration.c

@@ -364,9 +364,9 @@ void remove_migration_state_change_notifier(Notifier *notify)
     notifier_list_remove(&migration_state_notifiers, notify);
 }
 
-int get_migration_state(void)
+bool migration_has_finished(MigrationState *s)
 {
-    return migrate_get_current()->state;
+    return s->state == MIG_STATE_COMPLETED;
 }
 
 void migrate_fd_connect(MigrationState *s)

migration.h

@@ -84,7 +84,7 @@ void migrate_fd_connect(MigrationState *s);
 
 void add_migration_state_change_notifier(Notifier *notify);
 void remove_migration_state_change_notifier(Notifier *notify);
-int get_migration_state(void);
+bool migration_has_finished(MigrationState *);
 
 uint64_t ram_bytes_remaining(void);
 uint64_t ram_bytes_transferred(void);

ui/spice-core.c

@@ -447,9 +447,9 @@ void do_info_spice(Monitor *mon, QObject **ret_data)
 
 static void migration_state_notifier(Notifier *notifier, void *data)
 {
-    int state = get_migration_state();
+    MigrationState *s = data;
 
-    if (state == MIG_STATE_COMPLETED) {
+    if (migration_has_finished(s)) {
 #if SPICE_SERVER_VERSION >= 0x000701 /* 0.7.1 */
         spice_server_migrate_switch(spice_server);
 #endif