/* * * Copyright 2015-2016, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include "test/core/end2end/end2end_tests.h" #include #include #include #include #include "test/core/end2end/cq_verifier.h" static void *tag(intptr_t t) { return (void *)t; } typedef struct { gpr_event started; grpc_channel *channel; grpc_completion_queue *cq; } child_events; static void child_thread(void *arg) { child_events *ce = arg; grpc_event ev; gpr_event_set(&ce->started, (void *)1); gpr_log(GPR_DEBUG, "verifying"); ev = grpc_completion_queue_next(ce->cq, gpr_inf_future(GPR_CLOCK_MONOTONIC), NULL); GPR_ASSERT(ev.type == GRPC_OP_COMPLETE); GPR_ASSERT(ev.tag == tag(1)); GPR_ASSERT(ev.success == 0); } static void test_connectivity(grpc_end2end_test_config config) { grpc_end2end_test_fixture f = config.create_fixture(NULL, NULL); grpc_connectivity_state state; cq_verifier *cqv = cq_verifier_create(f.cq); child_events ce; gpr_thd_options thdopt = gpr_thd_options_default(); gpr_thd_id thdid; config.init_client(&f, NULL); ce.channel = f.client; ce.cq = f.cq; gpr_event_init(&ce.started); gpr_thd_options_set_joinable(&thdopt); GPR_ASSERT(gpr_thd_new(&thdid, child_thread, &ce, &thdopt)); gpr_event_wait(&ce.started, gpr_inf_future(GPR_CLOCK_MONOTONIC)); /* channels should start life in IDLE, and stay there */ GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 0) == GRPC_CHANNEL_IDLE); gpr_sleep_until(GRPC_TIMEOUT_MILLIS_TO_DEADLINE(100)); GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 0) == GRPC_CHANNEL_IDLE); /* start watching for a change */ gpr_log(GPR_DEBUG, "watching"); grpc_channel_watch_connectivity_state( f.client, GRPC_CHANNEL_IDLE, gpr_now(GPR_CLOCK_MONOTONIC), f.cq, tag(1)); /* eventually the child thread completion should trigger */ gpr_thd_join(thdid); /* check that we're still in idle, and start connecting */ GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 1) == GRPC_CHANNEL_IDLE); /* start watching for a change */ grpc_channel_watch_connectivity_state(f.client, GRPC_CHANNEL_IDLE, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), f.cq, tag(2)); /* and now the watch should trigger */ cq_expect_completion(cqv, tag(2), 1); cq_verify(cqv); state = grpc_channel_check_connectivity_state(f.client, 0); GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE || state == GRPC_CHANNEL_CONNECTING); /* quickly followed by a transition to TRANSIENT_FAILURE */ grpc_channel_watch_connectivity_state(f.client, GRPC_CHANNEL_CONNECTING, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), f.cq, tag(3)); cq_expect_completion(cqv, tag(3), 1); cq_verify(cqv); state = grpc_channel_check_connectivity_state(f.client, 0); GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE || state == GRPC_CHANNEL_CONNECTING); gpr_log(GPR_DEBUG, "*** STARTING SERVER ***"); /* now let's bring up a server to connect to */ config.init_server(&f, NULL); gpr_log(GPR_DEBUG, "*** STARTED SERVER ***"); /* we'll go through some set of transitions (some might be missed), until READY is reached */ while (state != GRPC_CHANNEL_READY) { grpc_channel_watch_connectivity_state( f.client, state, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), f.cq, tag(4)); cq_expect_completion(cqv, tag(4), 1); cq_verify(cqv); state = grpc_channel_check_connectivity_state(f.client, 0); GPR_ASSERT(state == GRPC_CHANNEL_READY || state == GRPC_CHANNEL_CONNECTING || state == GRPC_CHANNEL_TRANSIENT_FAILURE); } /* bring down the server again */ /* we should go immediately to TRANSIENT_FAILURE */ gpr_log(GPR_DEBUG, "*** SHUTTING DOWN SERVER ***"); grpc_channel_watch_connectivity_state(f.client, GRPC_CHANNEL_READY, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), f.cq, tag(5)); grpc_server_shutdown_and_notify(f.server, f.cq, tag(0xdead)); cq_expect_completion(cqv, tag(5), 1); cq_expect_completion(cqv, tag(0xdead), 1); cq_verify(cqv); state = grpc_channel_check_connectivity_state(f.client, 0); GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE || state == GRPC_CHANNEL_CONNECTING || state == GRPC_CHANNEL_IDLE); /* cleanup server */ grpc_server_destroy(f.server); gpr_log(GPR_DEBUG, "*** SHUTDOWN SERVER ***"); grpc_channel_destroy(f.client); grpc_completion_queue_shutdown(f.cq); grpc_completion_queue_destroy(f.cq); config.tear_down_data(&f); cq_verifier_destroy(cqv); } void connectivity(grpc_end2end_test_config config) { GPR_ASSERT(config.feature_mask & FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION); test_connectivity(config); }