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1 /*
2  *
3  * Copyright 2016 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 "test/core/end2end/end2end_tests.h"
20 
21 #include <stdio.h>
22 #include <string.h>
23 
24 #include <grpc/byte_buffer.h>
25 #include <grpc/grpc.h>
26 #include <grpc/support/alloc.h>
27 #include <grpc/support/log.h>
28 #include <grpc/support/string_util.h>
29 #include <grpc/support/time.h>
30 #include "src/core/lib/gpr/string.h"
31 #include "src/core/lib/iomgr/error.h"
32 #include "test/core/end2end/cq_verifier.h"
33 
tag(intptr_t t)34 static void* tag(intptr_t t) { return (void*)t; }
35 
begin_test(grpc_end2end_test_config config,const char * test_name,grpc_channel_args * client_args,grpc_channel_args * server_args)36 static grpc_end2end_test_fixture begin_test(grpc_end2end_test_config config,
37                                             const char* test_name,
38                                             grpc_channel_args* client_args,
39                                             grpc_channel_args* server_args) {
40   grpc_end2end_test_fixture f;
41   gpr_log(GPR_INFO, "Running test: %s/%s", test_name, config.name);
42   f = config.create_fixture(client_args, server_args);
43   config.init_server(&f, server_args);
44   config.init_client(&f, client_args);
45   return f;
46 }
47 
n_seconds_from_now(int n)48 static gpr_timespec n_seconds_from_now(int n) {
49   return grpc_timeout_seconds_to_deadline(n);
50 }
51 
five_seconds_from_now(void)52 static gpr_timespec five_seconds_from_now(void) {
53   return n_seconds_from_now(5);
54 }
55 
drain_cq(grpc_completion_queue * cq)56 static void drain_cq(grpc_completion_queue* cq) {
57   grpc_event ev;
58   do {
59     ev = grpc_completion_queue_next(cq, five_seconds_from_now(), nullptr);
60   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
61 }
62 
shutdown_server(grpc_end2end_test_fixture * f)63 static void shutdown_server(grpc_end2end_test_fixture* f) {
64   if (!f->server) return;
65   grpc_server_shutdown_and_notify(f->server, f->shutdown_cq, tag(1000));
66   GPR_ASSERT(grpc_completion_queue_pluck(f->shutdown_cq, tag(1000),
67                                          grpc_timeout_seconds_to_deadline(5),
68                                          nullptr)
69                  .type == GRPC_OP_COMPLETE);
70   grpc_server_destroy(f->server);
71   f->server = nullptr;
72 }
73 
shutdown_client(grpc_end2end_test_fixture * f)74 static void shutdown_client(grpc_end2end_test_fixture* f) {
75   if (!f->client) return;
76   grpc_channel_destroy(f->client);
77   f->client = nullptr;
78 }
79 
end_test(grpc_end2end_test_fixture * f)80 static void end_test(grpc_end2end_test_fixture* f) {
81   shutdown_server(f);
82   shutdown_client(f);
83 
84   grpc_completion_queue_shutdown(f->cq);
85   drain_cq(f->cq);
86   grpc_completion_queue_destroy(f->cq);
87   grpc_completion_queue_destroy(f->shutdown_cq);
88 }
89 
simple_request_body(grpc_end2end_test_config config,grpc_end2end_test_fixture f)90 static void simple_request_body(grpc_end2end_test_config config,
91                                 grpc_end2end_test_fixture f) {
92   grpc_call* c;
93   grpc_call* s;
94   cq_verifier* cqv = cq_verifier_create(f.cq);
95   grpc_op ops[6];
96   grpc_op* op;
97   grpc_metadata_array initial_metadata_recv;
98   grpc_metadata_array trailing_metadata_recv;
99   grpc_metadata_array request_metadata_recv;
100   grpc_call_details call_details;
101   grpc_status_code status;
102   grpc_call_error error;
103   grpc_slice details;
104   int was_cancelled = 2;
105   char* peer;
106 
107   gpr_timespec deadline = five_seconds_from_now();
108   c = grpc_channel_create_call(f.client, nullptr, GRPC_PROPAGATE_DEFAULTS, f.cq,
109                                grpc_slice_from_static_string("/foo"), nullptr,
110                                deadline, nullptr);
111   GPR_ASSERT(c);
112 
113   peer = grpc_call_get_peer(c);
114   GPR_ASSERT(peer != nullptr);
115   gpr_free(peer);
116 
117   grpc_metadata_array_init(&initial_metadata_recv);
118   grpc_metadata_array_init(&trailing_metadata_recv);
119   grpc_metadata_array_init(&request_metadata_recv);
120   grpc_call_details_init(&call_details);
121 
122   memset(ops, 0, sizeof(ops));
123   op = ops;
124   op->op = GRPC_OP_SEND_INITIAL_METADATA;
125   op->data.send_initial_metadata.count = 0;
126   op->flags = 0;
127   op->reserved = nullptr;
128   op++;
129   op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
130   op->flags = 0;
131   op->reserved = nullptr;
132   op++;
133   op->op = GRPC_OP_RECV_INITIAL_METADATA;
134   op->data.recv_initial_metadata.recv_initial_metadata = &initial_metadata_recv;
135   op->flags = 0;
136   op->reserved = nullptr;
137   op++;
138   op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
139   op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
140   op->data.recv_status_on_client.status = &status;
141   op->data.recv_status_on_client.status_details = &details;
142   op->flags = 0;
143   op->reserved = nullptr;
144   op++;
145   error = grpc_call_start_batch(c, ops, static_cast<size_t>(op - ops), tag(1),
146                                 nullptr);
147   GPR_ASSERT(GRPC_CALL_OK == error);
148 
149   error =
150       grpc_server_request_call(f.server, &s, &call_details,
151                                &request_metadata_recv, f.cq, f.cq, tag(101));
152   GPR_ASSERT(GRPC_CALL_OK == error);
153   CQ_EXPECT_COMPLETION(cqv, tag(101), 1);
154   cq_verify(cqv);
155 
156   peer = grpc_call_get_peer(s);
157   GPR_ASSERT(peer != nullptr);
158   gpr_free(peer);
159   peer = grpc_call_get_peer(c);
160   GPR_ASSERT(peer != nullptr);
161   gpr_free(peer);
162 
163   memset(ops, 0, sizeof(ops));
164   op = ops;
165   op->op = GRPC_OP_SEND_INITIAL_METADATA;
166   op->data.send_initial_metadata.count = 0;
167   op->flags = 0;
168   op->reserved = nullptr;
169   op++;
170   op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
171   op->data.send_status_from_server.trailing_metadata_count = 0;
172   op->data.send_status_from_server.status = GRPC_STATUS_OK;
173   op->data.send_status_from_server.status_details = nullptr;
174   op->flags = 0;
175   op->reserved = nullptr;
176   op++;
177   op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
178   op->data.recv_close_on_server.cancelled = &was_cancelled;
179   op->flags = 0;
180   op->reserved = nullptr;
181   op++;
182   error = grpc_call_start_batch(s, ops, static_cast<size_t>(op - ops), tag(102),
183                                 nullptr);
184   GPR_ASSERT(GRPC_CALL_OK == error);
185 
186   CQ_EXPECT_COMPLETION(cqv, tag(102), 1);
187   CQ_EXPECT_COMPLETION(cqv, tag(1), 1);
188   cq_verify(cqv);
189 
190   GPR_ASSERT(status == GRPC_STATUS_OK);
191   GPR_ASSERT(GRPC_SLICE_LENGTH(details) == 0);
192   GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo"));
193   GPR_ASSERT(0 == call_details.flags);
194   GPR_ASSERT(was_cancelled == 0);
195 
196   grpc_slice_unref(details);
197   grpc_metadata_array_destroy(&initial_metadata_recv);
198   grpc_metadata_array_destroy(&trailing_metadata_recv);
199   grpc_metadata_array_destroy(&request_metadata_recv);
200   grpc_call_details_destroy(&call_details);
201 
202   grpc_call_unref(c);
203   grpc_call_unref(s);
204 
205   cq_verifier_destroy(cqv);
206 }
207 
test_no_error_on_hotpath_one_request(grpc_end2end_test_config config)208 static void test_no_error_on_hotpath_one_request(
209     grpc_end2end_test_config config) {
210   grpc_end2end_test_fixture f;
211 
212   f = begin_test(config, "test_invoke_simple_request_with_no_error_logging",
213                  nullptr, nullptr);
214   // First RPC is not considered the hotpath, since there are lots of things to
215   // set up.
216   simple_request_body(config, f);
217   grpc_disable_error_creation();
218   simple_request_body(config, f);
219   grpc_enable_error_creation();
220   end_test(&f);
221   config.tear_down_data(&f);
222 }
223 
test_no_error_on_hotpath_10_requests(grpc_end2end_test_config config)224 static void test_no_error_on_hotpath_10_requests(
225     grpc_end2end_test_config config) {
226   int i;
227   grpc_end2end_test_fixture f = begin_test(
228       config, "test_no_error_on_hotpath_in_one_request", nullptr, nullptr);
229   // First RPC is not considered the hotpath, since there are lots of things to
230   // set up.
231   simple_request_body(config, f);
232   grpc_disable_error_creation();
233   for (i = 0; i < 10; i++) {
234     simple_request_body(config, f);
235   }
236   grpc_enable_error_creation();
237   end_test(&f);
238   config.tear_down_data(&f);
239 }
240 
no_error_on_hotpath(grpc_end2end_test_config config)241 void no_error_on_hotpath(grpc_end2end_test_config config) {
242   test_no_error_on_hotpath_one_request(config);
243   test_no_error_on_hotpath_10_requests(config);
244 }
245 
no_error_on_hotpath_pre_init(void)246 void no_error_on_hotpath_pre_init(void) {}
247