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/*
*
* 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 <string.h>
#include <grpc/grpc.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/string_util.h>
#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<char*>(GRPC_ARG_SERVICE_CONFIG);
arg.value.string = const_cast<char*>(
"{\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;
}
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