|  | @@ -204,6 +204,18 @@ static void test_max_concurrent_streams(grpc_end2end_test_config config) {
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				|  |  |    cq_verifier *v_client;
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				|  |  |    cq_verifier *v_server;
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				|  |  |    grpc_event *ev;
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				|  |  | +  grpc_call_details call_details;
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				|  |  | +  grpc_metadata_array request_metadata_recv;
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				|  |  | +  grpc_metadata_array initial_metadata_recv1;
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				|  |  | +  grpc_metadata_array trailing_metadata_recv1;
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				|  |  | +  grpc_metadata_array initial_metadata_recv2;
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				|  |  | +  grpc_metadata_array trailing_metadata_recv2;
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				|  |  | +  grpc_status_code status1;
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				|  |  | +  char *details1 = NULL;
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				|  |  | +  size_t details_capacity1 = 0;
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				|  |  | +  grpc_status_code status2;
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				|  |  | +  char *details2 = NULL;
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				|  |  | +  size_t details_capacity2 = 0;
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				|  |  |  
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				|  |  |    server_arg.key = GRPC_ARG_MAX_CONCURRENT_STREAMS;
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				|  |  |    server_arg.type = GRPC_ARG_INTEGER;
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				|  | @@ -216,6 +228,8 @@ static void test_max_concurrent_streams(grpc_end2end_test_config config) {
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				|  |  |    v_client = cq_verifier_create(f.client_cq);
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				|  |  |    v_server = cq_verifier_create(f.server_cq);
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				|  |  |  
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				|  |  | +  grpc_metadata_array_init(&request_metadata_recv);
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				|  |  | +
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				|  |  |    /* perform a ping-pong to ensure that settings have had a chance to round
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				|  |  |       trip */
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				|  |  |    simple_request_body(f);
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				|  | @@ -225,68 +239,127 @@ static void test_max_concurrent_streams(grpc_end2end_test_config config) {
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				|  |  |    /* start two requests - ensuring that the second is not accepted until
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				|  |  |       the first completes */
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				|  |  |    deadline = five_seconds_time();
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				|  |  | -  c1 = grpc_channel_create_call_old(f.client, "/alpha", "foo.test.google.fr",
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				|  |  | -                                    deadline);
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				|  |  | -  GPR_ASSERT(c1);
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				|  |  | -  c2 = grpc_channel_create_call_old(f.client, "/beta", "foo.test.google.fr",
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				|  |  | -                                    deadline);
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				|  |  | +  c1 = grpc_channel_create_call(f.client, f.client_cq, "/alpha",
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				|  |  | +                               "foo.test.google.fr:1234", deadline);
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				|  |  |    GPR_ASSERT(c1);
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				|  |  | +  c2 = grpc_channel_create_call(f.client, f.client_cq, "/beta",
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				|  |  | +                               "foo.test.google.fr:1234", deadline);
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				|  |  | +  GPR_ASSERT(c2);
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				|  |  |  
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(100)));
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call(f.server, &s1,
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				|  |  | +                                                      &call_details,
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				|  |  | +                                                      &request_metadata_recv,
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				|  |  | +                                                      f.server_cq, tag(101)));
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				|  |  |  
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK ==
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				|  |  | -             grpc_call_invoke_old(c1, f.client_cq, tag(301), tag(302), 0));
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK ==
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				|  |  | -             grpc_call_invoke_old(c2, f.client_cq, tag(401), tag(402), 0));
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK == grpc_call_writes_done_old(c1, tag(303)));
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK == grpc_call_writes_done_old(c2, tag(403)));
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				|  |  | +  op = ops;
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				|  |  | +  op->op = GRPC_OP_SEND_INITIAL_METADATA;
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				|  |  | +  op->data.send_initial_metadata.count = 0;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_RECV_INITIAL_METADATA;
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				|  |  | +  op->data.recv_initial_metadata = &initial_metadata_recv;
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				|  |  | +  op++;
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(c1, ops, op - ops, tag(301)));
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				|  |  | +
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				|  |  | +  op = ops;
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				|  |  | +  op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
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				|  |  | +  op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
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				|  |  | +  op->data.recv_status_on_client.status = &status;
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				|  |  | +  op->data.recv_status_on_client.status_details = &details;
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				|  |  | +  op->data.recv_status_on_client.status_details_capacity = &details_capacity;
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				|  |  | +  op++;
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(c1, ops, op - ops, tag(302)));
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				|  |  | +
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				|  |  | +  op = ops;
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				|  |  | +  op->op = GRPC_OP_SEND_INITIAL_METADATA;
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				|  |  | +  op->data.send_initial_metadata.count = 0;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_RECV_INITIAL_METADATA;
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				|  |  | +  op->data.recv_initial_metadata = &initial_metadata_recv;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
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				|  |  | +  op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
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				|  |  | +  op->data.recv_status_on_client.status = &status;
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				|  |  | +  op->data.recv_status_on_client.status_details = &details;
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				|  |  | +  op->data.recv_status_on_client.status_details_capacity = &details_capacity;
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				|  |  | +  op++;
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(c2, ops, op - ops, tag(401)));
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				|  |  | +
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				|  |  | +  op = ops;
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				|  |  | +  op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
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				|  |  | +  op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
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				|  |  | +  op->data.recv_status_on_client.status = &status;
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				|  |  | +  op->data.recv_status_on_client.status_details = &details;
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				|  |  | +  op->data.recv_status_on_client.status_details_capacity = &details_capacity;
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				|  |  | +  op++;
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(c2, ops, op - ops, tag(402)));
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				|  |  |  
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				|  |  |    ev = grpc_completion_queue_next(
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				|  |  |        f.client_cq, gpr_time_add(gpr_now(), gpr_time_from_seconds(10)));
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				|  |  |    GPR_ASSERT(ev);
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				|  |  | -  GPR_ASSERT(ev->type == GRPC_FINISH_ACCEPTED);
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				|  |  | -  GPR_ASSERT(ev->data.invoke_accepted == GRPC_OP_OK);
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				|  |  | +  GPR_ASSERT(ev->type == GRPC_OP_COMPLETE);
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				|  |  | +  GPR_ASSERT(ev->data.op_complete == GRPC_OP_OK);
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				|  |  | +  GPR_ASSERT(ev->data.tag == tag(301) || ev->data.tag == tag(401));
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				|  |  |    /* The /alpha or /beta calls started above could be invoked (but NOT both);
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				|  |  |     * check this here */
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				|  |  |    /* We'll get tag 303 or 403, we want 300, 400 */
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				|  |  | -  live_call = ((int)(gpr_intptr) ev->tag) - 3;
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				|  |  | +  live_call = ((int)(gpr_intptr) ev->tag) - 1;
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				|  |  |    grpc_event_finish(ev);
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				|  |  |  
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				|  |  | -  cq_expect_server_rpc_new(v_server, &s1, tag(100),
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				|  |  | -                           live_call == 300 ? "/alpha" : "/beta",
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				|  |  | -                           "foo.test.google.fr", deadline, NULL);
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				|  |  | +  cq_expect_completion(v_server, tag(100), GRPC_OP_OK);
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				|  |  |    cq_verify(v_server);
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				|  |  |  
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK ==
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				|  |  | -             grpc_call_server_accept_old(s1, f.server_cq, tag(102)));
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK == grpc_call_server_end_initial_metadata_old(s1, 0));
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				|  |  | -  cq_expect_client_metadata_read(v_client, tag(live_call + 1), NULL);
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				|  |  | +  op = ops;
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				|  |  | +  op->op = GRPC_OP_SEND_INITIAL_METADATA;
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				|  |  | +  op->data.send_initial_metadata.count = 0;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
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				|  |  | +  op->data.recv_close_on_server.cancelled = &was_cancelled;
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				|  |  | +  op++;
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(s, ops, op - ops, tag(102)));
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				|  |  | +
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				|  |  | +  cq_expect_completion(v_client, tag(live_call + 1), NULL);
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				|  |  |    cq_verify(v_client);
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				|  |  |  
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK ==
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				|  |  | -             grpc_call_start_write_status_old(s1, GRPC_STATUS_UNIMPLEMENTED,
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				|  |  | -                                              "xyz", tag(103)));
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				|  |  | -  cq_expect_finish_accepted(v_server, tag(103), GRPC_OP_OK);
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				|  |  | -  cq_expect_finished(v_server, tag(102), NULL);
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				|  |  | +  op = ops;
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				|  |  | +  op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
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				|  |  | +  op->data.send_status_from_server.trailing_metadata_count = 0;
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				|  |  | +  op->data.send_status_from_server.status = GRPC_STATUS_UNIMPLEMENTED;
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				|  |  | +  op->data.send_status_from_server.status_details = "xyz";
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				|  |  | +  op++;
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(s, ops, op - ops, tag(103)));
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				|  |  | +
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				|  |  | +  cq_expect_completion(v_server, tag(103), GRPC_OP_OK);
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				|  |  |    cq_verify(v_server);
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				|  |  |  
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				|  |  |    /* first request is finished, we should be able to start the second */
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				|  |  | -  cq_expect_finished_with_status(v_client, tag(live_call + 2),
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				|  |  | -                                 GRPC_STATUS_UNIMPLEMENTED, "xyz", NULL);
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				|  |  | +  cq_expect_completion(v_client, tag(live_call + 2), GRPC_OP_OK);
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				|  |  |    live_call = (live_call == 300) ? 400 : 300;
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				|  |  | -  cq_expect_finish_accepted(v_client, tag(live_call + 3), GRPC_OP_OK);
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				|  |  | +  cq_expect_completion(v_client, tag(live_call + 3), GRPC_OP_OK);
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				|  |  |    cq_verify(v_client);
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				|  |  |  
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call_old(f.server, tag(200)));
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				|  |  | -  cq_expect_server_rpc_new(v_server, &s2, tag(200),
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call(f.server, &s1,
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				|  |  | +                                                      &call_details,
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				|  |  | +                                                      &request_metadata_recv,
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				|  |  | +                                                      f.server_cq, tag(201)));
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				|  |  | +  cq_expect_server_rpc_new(v_server, &s2, tag(201),
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				|  |  |                             live_call == 300 ? "/alpha" : "/beta",
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				|  |  |                             "foo.test.google.fr", deadline, NULL);
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				|  |  |    cq_verify(v_server);
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				|  |  |  
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK ==
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				|  |  | -             grpc_call_server_accept_old(s2, f.server_cq, tag(202)));
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				|  |  | -  GPR_ASSERT(GRPC_CALL_OK == grpc_call_server_end_initial_metadata_old(s2, 0));
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				|  |  | -  cq_expect_client_metadata_read(v_client, tag(live_call + 1), NULL);
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				|  |  | +  op = ops;
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				|  |  | +  op->op = GRPC_OP_SEND_INITIAL_METADATA;
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				|  |  | +  op->data.send_initial_metadata.count = 0;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
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				|  |  | +  op->data.recv_close_on_server.cancelled = &was_cancelled;
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				|  |  | +  op++;
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(s, ops, op - ops, tag(202)));
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				|  |  | +
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				|  |  | +  cq_expect_completion(v_client, tag(live_call + 1), NULL);
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				|  |  |    cq_verify(v_client);
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				|  |  |  
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				|  |  |    GPR_ASSERT(GRPC_CALL_OK ==
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