1 /*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19 #include <string.h>
20
21 #include <grpc/grpc.h>
22 #include <grpc/support/alloc.h>
23 #include <grpc/support/log.h>
24
25 #include "src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h"
26 #include "test/core/end2end/cq_verifier.h"
27 #include "test/core/util/test_config.h"
28
tag(intptr_t i)29 static void* tag(intptr_t i) { return (void*)i; }
30
run_test(bool wait_for_ready)31 void run_test(bool wait_for_ready) {
32 gpr_log(GPR_INFO, "TEST: wait_for_ready=%d", wait_for_ready);
33
34 grpc_init();
35
36 grpc_completion_queue* cq = grpc_completion_queue_create_for_next(nullptr);
37 cq_verifier* cqv = cq_verifier_create(cq);
38
39 grpc_core::RefCountedPtr<grpc_core::FakeResolverResponseGenerator>
40 response_generator =
41 grpc_core::MakeRefCounted<grpc_core::FakeResolverResponseGenerator>();
42 grpc_arg arg = grpc_core::FakeResolverResponseGenerator::MakeChannelArg(
43 response_generator.get());
44 grpc_channel_args args = {1, &arg};
45
46 /* create a call, channel to a non existant server */
47 grpc_channel* chan =
48 grpc_insecure_channel_create("fake:nonexistant", &args, nullptr);
49 gpr_timespec deadline = grpc_timeout_seconds_to_deadline(2);
50 grpc_call* call = grpc_channel_create_call(
51 chan, nullptr, GRPC_PROPAGATE_DEFAULTS, cq,
52 grpc_slice_from_static_string("/Foo"), nullptr, deadline, nullptr);
53
54 grpc_op ops[6];
55 memset(ops, 0, sizeof(ops));
56 grpc_op* op = ops;
57 op->op = GRPC_OP_SEND_INITIAL_METADATA;
58 op->data.send_initial_metadata.count = 0;
59 op->flags = wait_for_ready ? GRPC_INITIAL_METADATA_WAIT_FOR_READY : 0;
60 op->reserved = nullptr;
61 op++;
62 grpc_metadata_array trailing_metadata_recv;
63 grpc_metadata_array_init(&trailing_metadata_recv);
64 grpc_status_code status;
65 grpc_slice details;
66 op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
67 op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
68 op->data.recv_status_on_client.status = &status;
69 op->data.recv_status_on_client.status_details = &details;
70 op->flags = 0;
71 op->reserved = nullptr;
72 op++;
73 GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(call, ops,
74 (size_t)(op - ops), tag(1),
75 nullptr));
76
77 {
78 grpc_core::ExecCtx exec_ctx;
79 response_generator->SetFailure();
80 }
81
82 /* verify that all tags get completed */
83 CQ_EXPECT_COMPLETION(cqv, tag(1), 1);
84 cq_verify(cqv);
85
86 gpr_log(GPR_INFO, "call status: %d", status);
87 if (wait_for_ready) {
88 GPR_ASSERT(status == GRPC_STATUS_DEADLINE_EXCEEDED);
89 } else {
90 GPR_ASSERT(status == GRPC_STATUS_UNAVAILABLE);
91 }
92
93 grpc_slice_unref(details);
94 grpc_metadata_array_destroy(&trailing_metadata_recv);
95
96 grpc_completion_queue_shutdown(cq);
97 while (grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME),
98 nullptr)
99 .type != GRPC_QUEUE_SHUTDOWN)
100 ;
101 grpc_completion_queue_destroy(cq);
102 grpc_call_unref(call);
103 grpc_channel_destroy(chan);
104 cq_verifier_destroy(cqv);
105
106 grpc_shutdown();
107 }
108
main(int argc,char ** argv)109 int main(int argc, char** argv) {
110 grpc_test_init(argc, argv);
111 run_test(true /* wait_for_ready */);
112 run_test(false /* wait_for_ready */);
113 return 0;
114 }
115