aboutsummaryrefslogtreecommitdiffhomepage
path: root/test/core/end2end/tests/max_connection_age.c
blob: c470dcda6923bea93554f3d1b2dad374a5ae3550 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
/*
 *
 * Copyright 2017, 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 <limits.h>
#include <string.h>

#include <grpc/support/log.h>
#include <grpc/support/sync.h>
#include <grpc/support/time.h>
#include <grpc/support/useful.h>

#include "test/core/end2end/cq_verifier.h"

#define MAX_CONNECTION_AGE_MS 500
#define MAX_CONNECTION_AGE_GRACE_MS 1000
#define MAX_CONNECTION_IDLE_MS 9999

#define MAX_CONNECTION_AGE_JITTER_MULTIPLIER 1.1
#define CALL_DEADLINE_S 10
/* The amount of time we wait for the connection to time out, but after it the
   connection should not use up its grace period. It should be a number between
   MAX_CONNECTION_AGE_MS and MAX_CONNECTION_AGE_MS +
   MAX_CONNECTION_AGE_GRACE_MS */
#define CQ_MAX_CONNECTION_AGE_WAIT_TIME_S 1
/* The amount of time we wait after the connection reaches its max age, it
   should be shorter than CALL_DEADLINE_S - CQ_MAX_CONNECTION_AGE_WAIT_TIME_S */
#define CQ_MAX_CONNECTION_AGE_GRACE_WAIT_TIME_S 2
/* The grace period for the test to observe the channel shutdown process */
#define IMMEDIATE_SHUTDOWN_GRACE_TIME_MS 3000

static void *tag(intptr_t t) { return (void *)t; }

static void drain_cq(grpc_completion_queue *cq) {
  grpc_event ev;
  do {
    ev = grpc_completion_queue_next(cq, grpc_timeout_seconds_to_deadline(5),
                                    NULL);
  } while (ev.type != GRPC_QUEUE_SHUTDOWN);
}

static void shutdown_server(grpc_end2end_test_fixture *f) {
  if (!f->server) return;
  grpc_server_destroy(f->server);
  f->server = NULL;
}

static void shutdown_client(grpc_end2end_test_fixture *f) {
  if (!f->client) return;
  grpc_channel_destroy(f->client);
  f->client = NULL;
}

static void end_test(grpc_end2end_test_fixture *f) {
  shutdown_server(f);
  shutdown_client(f);

  grpc_completion_queue_shutdown(f->cq);
  drain_cq(f->cq);
  grpc_completion_queue_destroy(f->cq);
  grpc_completion_queue_destroy(f->shutdown_cq);
}

static void test_max_age_forcibly_close(grpc_end2end_test_config config) {
  grpc_end2end_test_fixture f = config.create_fixture(NULL, NULL);
  cq_verifier *cqv = cq_verifier_create(f.cq);
  grpc_arg server_a[] = {{.type = GRPC_ARG_INTEGER,
                          .key = GRPC_ARG_MAX_CONNECTION_AGE_MS,
                          .value.integer = MAX_CONNECTION_AGE_MS},
                         {.type = GRPC_ARG_INTEGER,
                          .key = GRPC_ARG_MAX_CONNECTION_AGE_GRACE_MS,
                          .value.integer = MAX_CONNECTION_AGE_GRACE_MS},
                         {.type = GRPC_ARG_INTEGER,
                          .key = GRPC_ARG_MAX_CONNECTION_IDLE_MS,
                          .value.integer = MAX_CONNECTION_IDLE_MS}};
  grpc_channel_args server_args = {.num_args = GPR_ARRAY_SIZE(server_a),
                                   .args = server_a};

  config.init_client(&f, NULL);
  config.init_server(&f, &server_args);

  grpc_call *c;
  grpc_call *s;
  gpr_timespec deadline = grpc_timeout_seconds_to_deadline(CALL_DEADLINE_S);
  grpc_op ops[6];
  grpc_op *op;
  grpc_metadata_array initial_metadata_recv;
  grpc_metadata_array trailing_metadata_recv;
  grpc_metadata_array request_metadata_recv;
  grpc_call_details call_details;
  grpc_status_code status;
  grpc_call_error error;
  grpc_slice details;
  int was_cancelled = 2;

  c = grpc_channel_create_call(
      f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
      grpc_slice_from_static_string("/foo"),
      get_host_override_slice("foo.test.google.fr:1234", config), deadline,
      NULL);
  GPR_ASSERT(c);

  grpc_metadata_array_init(&initial_metadata_recv);
  grpc_metadata_array_init(&trailing_metadata_recv);
  grpc_metadata_array_init(&request_metadata_recv);
  grpc_call_details_init(&call_details);

  memset(ops, 0, sizeof(ops));
  op = ops;
  op->op = GRPC_OP_SEND_INITIAL_METADATA;
  op->data.send_initial_metadata.count = 0;
  op->data.send_initial_metadata.metadata = NULL;
  op->flags = 0;
  op->reserved = NULL;
  op++;
  op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
  op->flags = 0;
  op->reserved = NULL;
  op++;
  op->op = GRPC_OP_RECV_INITIAL_METADATA;
  op->data.recv_initial_metadata.recv_initial_metadata = &initial_metadata_recv;
  op->flags = 0;
  op->reserved = NULL;
  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 = NULL;
  op++;
  error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL);
  GPR_ASSERT(GRPC_CALL_OK == error);

  error =
      grpc_server_request_call(f.server, &s, &call_details,
                               &request_metadata_recv, f.cq, f.cq, tag(101));
  GPR_ASSERT(GRPC_CALL_OK == error);
  CQ_EXPECT_COMPLETION(cqv, tag(101), true);
  cq_verify(cqv);

  gpr_timespec expect_shutdown_time = grpc_timeout_milliseconds_to_deadline(
      (int)(MAX_CONNECTION_AGE_MS * MAX_CONNECTION_AGE_JITTER_MULTIPLIER) +
      MAX_CONNECTION_AGE_GRACE_MS + IMMEDIATE_SHUTDOWN_GRACE_TIME_MS);

  /* Wait for the channel to reach its max age */
  cq_verify_empty_timeout(cqv, CQ_MAX_CONNECTION_AGE_WAIT_TIME_S);

  /* After the channel reaches its max age, we still do nothing here. And wait
     for it to use up its max age grace period. */
  CQ_EXPECT_COMPLETION(cqv, tag(1), true);
  cq_verify(cqv);

  gpr_timespec channel_shutdown_time = gpr_now(GPR_CLOCK_MONOTONIC);
  GPR_ASSERT(gpr_time_cmp(channel_shutdown_time, expect_shutdown_time) < 0);

  memset(ops, 0, sizeof(ops));
  op = ops;
  op->op = GRPC_OP_SEND_INITIAL_METADATA;
  op->data.send_initial_metadata.count = 0;
  op->flags = 0;
  op->reserved = NULL;
  op++;
  op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
  op->data.send_status_from_server.trailing_metadata_count = 0;
  op->data.send_status_from_server.status = GRPC_STATUS_UNIMPLEMENTED;
  grpc_slice status_details = grpc_slice_from_static_string("xyz");
  op->data.send_status_from_server.status_details = &status_details;
  op->flags = 0;
  op->reserved = NULL;
  op++;
  op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
  op->data.recv_close_on_server.cancelled = &was_cancelled;
  op->flags = 0;
  op->reserved = NULL;
  op++;
  error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(102), NULL);
  GPR_ASSERT(GRPC_CALL_OK == error);
  CQ_EXPECT_COMPLETION(cqv, tag(102), true);
  cq_verify(cqv);

  grpc_server_shutdown_and_notify(f.server, f.cq, tag(0xdead));
  CQ_EXPECT_COMPLETION(cqv, tag(0xdead), true);
  cq_verify(cqv);

  grpc_call_unref(s);

  /* The connection should be closed immediately after the max age grace period,
     the in-progress RPC should fail. */
  GPR_ASSERT(status == GRPC_STATUS_UNAVAILABLE);
  GPR_ASSERT(0 == grpc_slice_str_cmp(details, "Endpoint read failed"));
  GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo"));
  validate_host_override_string("foo.test.google.fr:1234", call_details.host,
                                config);
  GPR_ASSERT(was_cancelled == 1);

  grpc_slice_unref(details);
  grpc_metadata_array_destroy(&initial_metadata_recv);
  grpc_metadata_array_destroy(&trailing_metadata_recv);
  grpc_metadata_array_destroy(&request_metadata_recv);
  grpc_call_details_destroy(&call_details);
  grpc_call_unref(c);
  cq_verifier_destroy(cqv);
  end_test(&f);
  config.tear_down_data(&f);
}

static void test_max_age_gracefully_close(grpc_end2end_test_config config) {
  grpc_end2end_test_fixture f = config.create_fixture(NULL, NULL);
  cq_verifier *cqv = cq_verifier_create(f.cq);
  grpc_arg server_a[] = {{.type = GRPC_ARG_INTEGER,
                          .key = GRPC_ARG_MAX_CONNECTION_AGE_MS,
                          .value.integer = MAX_CONNECTION_AGE_MS},
                         {.type = GRPC_ARG_INTEGER,
                          .key = GRPC_ARG_MAX_CONNECTION_AGE_GRACE_MS,
                          .value.integer = INT_MAX},
                         {.type = GRPC_ARG_INTEGER,
                          .key = GRPC_ARG_MAX_CONNECTION_IDLE_MS,
                          .value.integer = MAX_CONNECTION_IDLE_MS}};
  grpc_channel_args server_args = {.num_args = GPR_ARRAY_SIZE(server_a),
                                   .args = server_a};

  config.init_client(&f, NULL);
  config.init_server(&f, &server_args);

  grpc_call *c;
  grpc_call *s;
  gpr_timespec deadline = grpc_timeout_seconds_to_deadline(CALL_DEADLINE_S);
  grpc_op ops[6];
  grpc_op *op;
  grpc_metadata_array initial_metadata_recv;
  grpc_metadata_array trailing_metadata_recv;
  grpc_metadata_array request_metadata_recv;
  grpc_call_details call_details;
  grpc_status_code status;
  grpc_call_error error;
  grpc_slice details;
  int was_cancelled = 2;

  c = grpc_channel_create_call(
      f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
      grpc_slice_from_static_string("/foo"),
      get_host_override_slice("foo.test.google.fr:1234", config), deadline,
      NULL);
  GPR_ASSERT(c);

  grpc_metadata_array_init(&initial_metadata_recv);
  grpc_metadata_array_init(&trailing_metadata_recv);
  grpc_metadata_array_init(&request_metadata_recv);
  grpc_call_details_init(&call_details);

  memset(ops, 0, sizeof(ops));
  op = ops;
  op->op = GRPC_OP_SEND_INITIAL_METADATA;
  op->data.send_initial_metadata.count = 0;
  op->data.send_initial_metadata.metadata = NULL;
  op->flags = 0;
  op->reserved = NULL;
  op++;
  op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
  op->flags = 0;
  op->reserved = NULL;
  op++;
  op->op = GRPC_OP_RECV_INITIAL_METADATA;
  op->data.recv_initial_metadata.recv_initial_metadata = &initial_metadata_recv;
  op->flags = 0;
  op->reserved = NULL;
  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 = NULL;
  op++;
  error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL);
  GPR_ASSERT(GRPC_CALL_OK == error);

  error =
      grpc_server_request_call(f.server, &s, &call_details,
                               &request_metadata_recv, f.cq, f.cq, tag(101));
  GPR_ASSERT(GRPC_CALL_OK == error);
  CQ_EXPECT_COMPLETION(cqv, tag(101), true);
  cq_verify(cqv);

  /* Wait for the channel to reach its max age */
  cq_verify_empty_timeout(cqv, CQ_MAX_CONNECTION_AGE_WAIT_TIME_S);

  /* The connection is shutting down gracefully. In-progress rpc should not be
     closed, hence the completion queue should see nothing here. */
  cq_verify_empty_timeout(cqv, CQ_MAX_CONNECTION_AGE_GRACE_WAIT_TIME_S);

  memset(ops, 0, sizeof(ops));
  op = ops;
  op->op = GRPC_OP_SEND_INITIAL_METADATA;
  op->data.send_initial_metadata.count = 0;
  op->flags = 0;
  op->reserved = NULL;
  op++;
  op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
  op->data.send_status_from_server.trailing_metadata_count = 0;
  op->data.send_status_from_server.status = GRPC_STATUS_UNIMPLEMENTED;
  grpc_slice status_details = grpc_slice_from_static_string("xyz");
  op->data.send_status_from_server.status_details = &status_details;
  op->flags = 0;
  op->reserved = NULL;
  op++;
  op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
  op->data.recv_close_on_server.cancelled = &was_cancelled;
  op->flags = 0;
  op->reserved = NULL;
  op++;
  error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(102), NULL);
  GPR_ASSERT(GRPC_CALL_OK == error);

  CQ_EXPECT_COMPLETION(cqv, tag(102), true);
  CQ_EXPECT_COMPLETION(cqv, tag(1), true);
  cq_verify(cqv);

  grpc_server_shutdown_and_notify(f.server, f.cq, tag(0xdead));
  CQ_EXPECT_COMPLETION(cqv, tag(0xdead), true);
  cq_verify(cqv);

  grpc_call_unref(s);

  /* The connection is closed gracefully with goaway, the rpc should still be
     completed. */
  GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
  GPR_ASSERT(0 == grpc_slice_str_cmp(details, "xyz"));
  GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo"));
  validate_host_override_string("foo.test.google.fr:1234", call_details.host,
                                config);
  GPR_ASSERT(was_cancelled == 1);

  grpc_slice_unref(details);
  grpc_metadata_array_destroy(&initial_metadata_recv);
  grpc_metadata_array_destroy(&trailing_metadata_recv);
  grpc_metadata_array_destroy(&request_metadata_recv);
  grpc_call_details_destroy(&call_details);
  grpc_call_unref(c);
  cq_verifier_destroy(cqv);
  end_test(&f);
  config.tear_down_data(&f);
}

void max_connection_age(grpc_end2end_test_config config) {
  test_max_age_forcibly_close(config);
  test_max_age_gracefully_close(config);
}

void max_connection_age_pre_init(void) {}