tests: Move MigrateCommon upper

So that it can be used in postcopy tests too soon.

Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220707185522.27638-1-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

tests/qtest/migration-test.c

@@ -503,6 +503,78 @@ typedef struct {
     const char *opts_target;
 } MigrateStart;
 
+/*
+ * A hook that runs after the src and dst QEMUs have been
+ * created, but before the migration is started. This can
+ * be used to set migration parameters and capabilities.
+ *
+ * Returns: NULL, or a pointer to opaque state to be
+ *          later passed to the TestMigrateFinishHook
+ */
+typedef void * (*TestMigrateStartHook)(QTestState *from,
+                                       QTestState *to);
+
+/*
+ * A hook that runs after the migration has finished,
+ * regardless of whether it succeeded or failed, but
+ * before QEMU has terminated (unless it self-terminated
+ * due to migration error)
+ *
+ * @opaque is a pointer to state previously returned
+ * by the TestMigrateStartHook if any, or NULL.
+ */
+typedef void (*TestMigrateFinishHook)(QTestState *from,
+                                      QTestState *to,
+                                      void *opaque);
+
+typedef struct {
+    /* Optional: fine tune start parameters */
+    MigrateStart start;
+
+    /* Required: the URI for the dst QEMU to listen on */
+    const char *listen_uri;
+
+    /*
+     * Optional: the URI for the src QEMU to connect to
+     * If NULL, then it will query the dst QEMU for its actual
+     * listening address and use that as the connect address.
+     * This allows for dynamically picking a free TCP port.
+     */
+    const char *connect_uri;
+
+    /* Optional: callback to run at start to set migration parameters */
+    TestMigrateStartHook start_hook;
+    /* Optional: callback to run at finish to cleanup */
+    TestMigrateFinishHook finish_hook;
+
+    /*
+     * Optional: normally we expect the migration process to complete.
+     *
+     * There can be a variety of reasons and stages in which failure
+     * can happen during tests.
+     *
+     * If a failure is expected to happen at time of establishing
+     * the connection, then MIG_TEST_FAIL will indicate that the dst
+     * QEMU is expected to stay running and accept future migration
+     * connections.
+     *
+     * If a failure is expected to happen while processing the
+     * migration stream, then MIG_TEST_FAIL_DEST_QUIT_ERR will indicate
+     * that the dst QEMU is expected to quit with non-zero exit status
+     */
+    enum {
+        /* This test should succeed, the default */
+        MIG_TEST_SUCCEED = 0,
+        /* This test should fail, dest qemu should keep alive */
+        MIG_TEST_FAIL,
+        /* This test should fail, dest qemu should fail with abnormal status */
+        MIG_TEST_FAIL_DEST_QUIT_ERR,
+    } result;
+
+    /* Optional: set number of migration passes to wait for */
+    unsigned int iterations;
+} MigrateCommon;
+
 static int test_migrate_start(QTestState **from, QTestState **to,
                               const char *uri, MigrateStart *args)
 {
@@ -1120,78 +1192,6 @@ static void test_baddest(void)
     test_migrate_end(from, to, false);
 }
 
-/*
- * A hook that runs after the src and dst QEMUs have been
- * created, but before the migration is started. This can
- * be used to set migration parameters and capabilities.
- *
- * Returns: NULL, or a pointer to opaque state to be
- *          later passed to the TestMigrateFinishHook
- */
-typedef void * (*TestMigrateStartHook)(QTestState *from,
-                                       QTestState *to);
-
-/*
- * A hook that runs after the migration has finished,
- * regardless of whether it succeeded or failed, but
- * before QEMU has terminated (unless it self-terminated
- * due to migration error)
- *
- * @opaque is a pointer to state previously returned
- * by the TestMigrateStartHook if any, or NULL.
- */
-typedef void (*TestMigrateFinishHook)(QTestState *from,
-                                      QTestState *to,
-                                      void *opaque);
-
-typedef struct {
-    /* Optional: fine tune start parameters */
-    MigrateStart start;
-
-    /* Required: the URI for the dst QEMU to listen on */
-    const char *listen_uri;
-
-    /*
-     * Optional: the URI for the src QEMU to connect to
-     * If NULL, then it will query the dst QEMU for its actual
-     * listening address and use that as the connect address.
-     * This allows for dynamically picking a free TCP port.
-     */
-    const char *connect_uri;
-
-    /* Optional: callback to run at start to set migration parameters */
-    TestMigrateStartHook start_hook;
-    /* Optional: callback to run at finish to cleanup */
-    TestMigrateFinishHook finish_hook;
-
-    /*
-     * Optional: normally we expect the migration process to complete.
-     *
-     * There can be a variety of reasons and stages in which failure
-     * can happen during tests.
-     *
-     * If a failure is expected to happen at time of establishing
-     * the connection, then MIG_TEST_FAIL will indicate that the dst
-     * QEMU is expected to stay running and accept future migration
-     * connections.
-     *
-     * If a failure is expected to happen while processing the
-     * migration stream, then MIG_TEST_FAIL_DEST_QUIT_ERR will indicate
-     * that the dst QEMU is expected to quit with non-zero exit status
-     */
-    enum {
-        /* This test should succeed, the default */
-        MIG_TEST_SUCCEED = 0,
-        /* This test should fail, dest qemu should keep alive */
-        MIG_TEST_FAIL,
-        /* This test should fail, dest qemu should fail with abnormal status */
-        MIG_TEST_FAIL_DEST_QUIT_ERR,
-    } result;
-
-    /* Optional: set number of migration passes to wait for */
-    unsigned int iterations;
-} MigrateCommon;
-
 static void test_precopy_common(MigrateCommon *args)
 {
     QTestState *from, *to;