/* * * Copyright 2016 gRPC authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ #include #include #include #include #include #include "src/core/lib/channel/channel_args.h" #include "src/core/lib/gpr/host_port.h" #include "src/core/lib/iomgr/exec_ctx.h" #include "src/core/lib/slice/slice_internal.h" #include "src/core/lib/transport/metadata.h" #include "src/core/lib/transport/service_config.h" #include "test/core/end2end/cq_verifier.h" #include "test/core/util/port.h" #include "test/core/util/test_config.h" static void* tag(intptr_t i) { return (void*)i; } static void run_test(bool wait_for_ready, bool use_service_config) { grpc_channel* chan; grpc_call* call; grpc_completion_queue* cq; cq_verifier* cqv; grpc_op ops[6]; grpc_op* op; grpc_metadata_array trailing_metadata_recv; grpc_status_code status; grpc_slice details; gpr_log(GPR_INFO, "TEST: wait_for_ready=%d use_service_config=%d", wait_for_ready, use_service_config); grpc_init(); grpc_metadata_array_init(&trailing_metadata_recv); cq = grpc_completion_queue_create_for_next(nullptr); cqv = cq_verifier_create(cq); /* if using service config, create channel args */ grpc_channel_args* args = nullptr; if (use_service_config) { GPR_ASSERT(wait_for_ready); grpc_arg arg; arg.type = GRPC_ARG_STRING; arg.key = const_cast(GRPC_ARG_SERVICE_CONFIG); arg.value.string = const_cast( "{\n" " \"methodConfig\": [ {\n" " \"name\": [\n" " { \"service\": \"service\", \"method\": \"method\" }\n" " ],\n" " \"waitForReady\": true\n" " } ]\n" "}"); args = grpc_channel_args_copy_and_add(args, &arg, 1); } /* create a call, channel to a port which will refuse connection */ int port = grpc_pick_unused_port_or_die(); char* addr; gpr_join_host_port(&addr, "127.0.0.1", port); gpr_log(GPR_INFO, "server: %s", addr); chan = grpc_insecure_channel_create(addr, args, nullptr); grpc_slice host = grpc_slice_from_static_string("nonexistant"); gpr_timespec deadline = grpc_timeout_seconds_to_deadline(2); call = grpc_channel_create_call(chan, nullptr, GRPC_PROPAGATE_DEFAULTS, cq, grpc_slice_from_static_string("/service/method"), &host, deadline, nullptr); gpr_free(addr); memset(ops, 0, sizeof(ops)); op = ops; op->op = GRPC_OP_SEND_INITIAL_METADATA; op->data.send_initial_metadata.count = 0; op->flags = (wait_for_ready && !use_service_config) ? GRPC_INITIAL_METADATA_WAIT_FOR_READY : 0; op->reserved = nullptr; op++; op->op = GRPC_OP_RECV_STATUS_ON_CLIENT; op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv; op->data.recv_status_on_client.status = &status; op->data.recv_status_on_client.status_details = &details; op->flags = 0; op->reserved = nullptr; op++; GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(call, ops, (size_t)(op - ops), tag(1), nullptr)); /* verify that all tags get completed */ CQ_EXPECT_COMPLETION(cqv, tag(1), 1); cq_verify(cqv); if (wait_for_ready) { GPR_ASSERT(status == GRPC_STATUS_DEADLINE_EXCEEDED); } else { GPR_ASSERT(status == GRPC_STATUS_UNAVAILABLE); } grpc_completion_queue_shutdown(cq); while (grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME), nullptr) .type != GRPC_QUEUE_SHUTDOWN) ; grpc_completion_queue_destroy(cq); grpc_call_unref(call); grpc_channel_destroy(chan); cq_verifier_destroy(cqv); grpc_slice_unref(details); grpc_metadata_array_destroy(&trailing_metadata_recv); { grpc_core::ExecCtx exec_ctx; if (args != nullptr) grpc_channel_args_destroy(args); } grpc_shutdown(); } int main(int argc, char** argv) { grpc_test_init(argc, argv); run_test(false /* wait_for_ready */, false /* use_service_config */); run_test(true /* wait_for_ready */, false /* use_service_config */); run_test(true /* wait_for_ready */, true /* use_service_config */); return 0; }