aboutsummaryrefslogtreecommitdiffhomepage
path: root/test/core/surface/completion_queue_test.c
blob: 1486d2508f697b19eccf542431a78952a947f8c5 (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
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
/*
 *
 * Copyright 2015, 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 "src/core/lib/surface/completion_queue.h"

#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/thd.h>
#include <grpc/support/time.h>
#include <grpc/support/useful.h>
#include "src/core/lib/iomgr/iomgr.h"
#include "test/core/util/test_config.h"

#define LOG_TEST(x) gpr_log(GPR_INFO, "%s", x)

static void *create_test_tag(void) {
  static intptr_t i = 0;
  return (void *)(++i);
}

/* helper for tests to shutdown correctly and tersely */
static void shutdown_and_destroy(grpc_completion_queue *cc) {
  grpc_event ev;
  grpc_completion_queue_shutdown(cc);
  ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
  GPR_ASSERT(ev.type == GRPC_QUEUE_SHUTDOWN);
  grpc_completion_queue_destroy(cc);
}

/* ensure we can create and destroy a completion channel */
static void test_no_op(void) {
  LOG_TEST("test_no_op");
  shutdown_and_destroy(grpc_completion_queue_create(NULL));
}

static void test_pollset_conversion(void) {
  grpc_completion_queue *cq = grpc_completion_queue_create(NULL);
  GPR_ASSERT(grpc_cq_from_pollset(grpc_cq_pollset(cq)) == cq);
  shutdown_and_destroy(cq);
}

static void test_wait_empty(void) {
  grpc_completion_queue *cc;
  grpc_event event;

  LOG_TEST("test_wait_empty");

  cc = grpc_completion_queue_create(NULL);
  event = grpc_completion_queue_next(cc, gpr_now(GPR_CLOCK_REALTIME), NULL);
  GPR_ASSERT(event.type == GRPC_QUEUE_TIMEOUT);
  shutdown_and_destroy(cc);
}

static void do_nothing_end_completion(grpc_exec_ctx *exec_ctx, void *arg,
                                      grpc_cq_completion *c) {}

static void test_cq_end_op(void) {
  grpc_event ev;
  grpc_completion_queue *cc;
  grpc_cq_completion completion;
  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
  void *tag = create_test_tag();

  LOG_TEST("test_cq_end_op");

  cc = grpc_completion_queue_create(NULL);

  grpc_cq_begin_op(cc, tag);
  grpc_cq_end_op(&exec_ctx, cc, tag, GRPC_ERROR_NONE, do_nothing_end_completion,
                 NULL, &completion);

  ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
  GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
  GPR_ASSERT(ev.tag == tag);
  GPR_ASSERT(ev.success);

  shutdown_and_destroy(cc);
  grpc_exec_ctx_finish(&exec_ctx);
}

static void test_shutdown_then_next_polling(void) {
  grpc_completion_queue *cc;
  grpc_event event;
  LOG_TEST("test_shutdown_then_next_polling");

  cc = grpc_completion_queue_create(NULL);
  grpc_completion_queue_shutdown(cc);
  event =
      grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
  GPR_ASSERT(event.type == GRPC_QUEUE_SHUTDOWN);
  grpc_completion_queue_destroy(cc);
}

static void test_shutdown_then_next_with_timeout(void) {
  grpc_completion_queue *cc;
  grpc_event event;
  LOG_TEST("test_shutdown_then_next_with_timeout");

  cc = grpc_completion_queue_create(NULL);
  grpc_completion_queue_shutdown(cc);
  event =
      grpc_completion_queue_next(cc, gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
  GPR_ASSERT(event.type == GRPC_QUEUE_SHUTDOWN);
  grpc_completion_queue_destroy(cc);
}

static void test_pluck(void) {
  grpc_event ev;
  grpc_completion_queue *cc;
  void *tags[128];
  grpc_cq_completion completions[GPR_ARRAY_SIZE(tags)];
  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
  unsigned i, j;

  LOG_TEST("test_pluck");

  for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
    tags[i] = create_test_tag();
    for (j = 0; j < i; j++) {
      GPR_ASSERT(tags[i] != tags[j]);
    }
  }

  cc = grpc_completion_queue_create(NULL);

  for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
    grpc_cq_begin_op(cc, tags[i]);
    grpc_cq_end_op(&exec_ctx, cc, tags[i], GRPC_ERROR_NONE,
                   do_nothing_end_completion, NULL, &completions[i]);
  }

  for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
    ev = grpc_completion_queue_pluck(cc, tags[i],
                                     gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
    GPR_ASSERT(ev.tag == tags[i]);
  }

  for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
    grpc_cq_begin_op(cc, tags[i]);
    grpc_cq_end_op(&exec_ctx, cc, tags[i], GRPC_ERROR_NONE,
                   do_nothing_end_completion, NULL, &completions[i]);
  }

  for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
    ev = grpc_completion_queue_pluck(cc, tags[GPR_ARRAY_SIZE(tags) - i - 1],
                                     gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
    GPR_ASSERT(ev.tag == tags[GPR_ARRAY_SIZE(tags) - i - 1]);
  }

  shutdown_and_destroy(cc);
  grpc_exec_ctx_finish(&exec_ctx);
}

static void test_pluck_after_shutdown(void) {
  grpc_event ev;
  grpc_completion_queue *cc;

  LOG_TEST("test_pluck_after_shutdown");
  cc = grpc_completion_queue_create(NULL);
  grpc_completion_queue_shutdown(cc);
  ev = grpc_completion_queue_pluck(cc, NULL, gpr_inf_future(GPR_CLOCK_REALTIME),
                                   NULL);
  GPR_ASSERT(ev.type == GRPC_QUEUE_SHUTDOWN);
  grpc_completion_queue_destroy(cc);
}

struct thread_state {
  grpc_completion_queue *cc;
  void *tag;
};

static void pluck_one(void *arg) {
  struct thread_state *state = arg;
  grpc_completion_queue_pluck(state->cc, state->tag,
                              gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
}

static void test_too_many_plucks(void) {
  grpc_event ev;
  grpc_completion_queue *cc;
  void *tags[GRPC_MAX_COMPLETION_QUEUE_PLUCKERS];
  grpc_cq_completion completions[GPR_ARRAY_SIZE(tags)];
  gpr_thd_id thread_ids[GPR_ARRAY_SIZE(tags)];
  struct thread_state thread_states[GPR_ARRAY_SIZE(tags)];
  gpr_thd_options thread_options = gpr_thd_options_default();
  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
  unsigned i, j;

  LOG_TEST("test_too_many_plucks");

  cc = grpc_completion_queue_create(NULL);
  gpr_thd_options_set_joinable(&thread_options);

  for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
    tags[i] = create_test_tag();
    for (j = 0; j < i; j++) {
      GPR_ASSERT(tags[i] != tags[j]);
    }
    thread_states[i].cc = cc;
    thread_states[i].tag = tags[i];
    gpr_thd_new(thread_ids + i, pluck_one, thread_states + i, &thread_options);
  }

  /* wait until all other threads are plucking */
  gpr_sleep_until(GRPC_TIMEOUT_MILLIS_TO_DEADLINE(1000));

  ev = grpc_completion_queue_pluck(cc, create_test_tag(),
                                   gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
  GPR_ASSERT(ev.type == GRPC_QUEUE_TIMEOUT);

  for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
    grpc_cq_begin_op(cc, tags[i]);
    grpc_cq_end_op(&exec_ctx, cc, tags[i], GRPC_ERROR_NONE,
                   do_nothing_end_completion, NULL, &completions[i]);
  }

  for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
    gpr_thd_join(thread_ids[i]);
  }

  shutdown_and_destroy(cc);
  grpc_exec_ctx_finish(&exec_ctx);
}

#define TEST_THREAD_EVENTS 10000

typedef struct test_thread_options {
  gpr_event on_started;
  gpr_event *phase1;
  gpr_event on_phase1_done;
  gpr_event *phase2;
  gpr_event on_finished;
  size_t events_triggered;
  int id;
  grpc_completion_queue *cc;
} test_thread_options;

gpr_timespec ten_seconds_time(void) {
  return GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10);
}

static void free_completion(grpc_exec_ctx *exec_ctx, void *arg,
                            grpc_cq_completion *completion) {
  gpr_free(completion);
}

static void producer_thread(void *arg) {
  test_thread_options *opt = arg;
  int i;
  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;

  gpr_log(GPR_INFO, "producer %d started", opt->id);
  gpr_event_set(&opt->on_started, (void *)(intptr_t)1);
  GPR_ASSERT(gpr_event_wait(opt->phase1, ten_seconds_time()));

  gpr_log(GPR_INFO, "producer %d phase 1", opt->id);
  for (i = 0; i < TEST_THREAD_EVENTS; i++) {
    grpc_cq_begin_op(opt->cc, (void *)(intptr_t)1);
  }

  gpr_log(GPR_INFO, "producer %d phase 1 done", opt->id);
  gpr_event_set(&opt->on_phase1_done, (void *)(intptr_t)1);
  GPR_ASSERT(gpr_event_wait(opt->phase2, ten_seconds_time()));

  gpr_log(GPR_INFO, "producer %d phase 2", opt->id);
  for (i = 0; i < TEST_THREAD_EVENTS; i++) {
    grpc_cq_end_op(&exec_ctx, opt->cc, (void *)(intptr_t)1, GRPC_ERROR_NONE,
                   free_completion, NULL,
                   gpr_malloc(sizeof(grpc_cq_completion)));
    opt->events_triggered++;
    grpc_exec_ctx_finish(&exec_ctx);
  }

  gpr_log(GPR_INFO, "producer %d phase 2 done", opt->id);
  gpr_event_set(&opt->on_finished, (void *)(intptr_t)1);
  grpc_exec_ctx_finish(&exec_ctx);
}

static void consumer_thread(void *arg) {
  test_thread_options *opt = arg;
  grpc_event ev;

  gpr_log(GPR_INFO, "consumer %d started", opt->id);
  gpr_event_set(&opt->on_started, (void *)(intptr_t)1);
  GPR_ASSERT(gpr_event_wait(opt->phase1, ten_seconds_time()));

  gpr_log(GPR_INFO, "consumer %d phase 1", opt->id);

  gpr_log(GPR_INFO, "consumer %d phase 1 done", opt->id);
  gpr_event_set(&opt->on_phase1_done, (void *)(intptr_t)1);
  GPR_ASSERT(gpr_event_wait(opt->phase2, ten_seconds_time()));

  gpr_log(GPR_INFO, "consumer %d phase 2", opt->id);
  for (;;) {
    ev = grpc_completion_queue_next(opt->cc, ten_seconds_time(), NULL);
    switch (ev.type) {
      case GRPC_OP_COMPLETE:
        GPR_ASSERT(ev.success);
        opt->events_triggered++;
        break;
      case GRPC_QUEUE_SHUTDOWN:
        gpr_log(GPR_INFO, "consumer %d phase 2 done", opt->id);
        gpr_event_set(&opt->on_finished, (void *)(intptr_t)1);
        return;
      case GRPC_QUEUE_TIMEOUT:
        gpr_log(GPR_ERROR, "Invalid timeout received");
        abort();
    }
  }
}

static void test_threading(size_t producers, size_t consumers) {
  test_thread_options *options =
      gpr_malloc((producers + consumers) * sizeof(test_thread_options));
  gpr_event phase1 = GPR_EVENT_INIT;
  gpr_event phase2 = GPR_EVENT_INIT;
  grpc_completion_queue *cc = grpc_completion_queue_create(NULL);
  size_t i;
  size_t total_consumed = 0;
  static int optid = 101;

  gpr_log(GPR_INFO, "%s: %" PRIuPTR " producers, %" PRIuPTR " consumers",
          "test_threading", producers, consumers);

  /* start all threads: they will wait for phase1 */
  for (i = 0; i < producers + consumers; i++) {
    gpr_thd_id id;
    gpr_event_init(&options[i].on_started);
    gpr_event_init(&options[i].on_phase1_done);
    gpr_event_init(&options[i].on_finished);
    options[i].phase1 = &phase1;
    options[i].phase2 = &phase2;
    options[i].events_triggered = 0;
    options[i].cc = cc;
    options[i].id = optid++;
    GPR_ASSERT(gpr_thd_new(&id,
                           i < producers ? producer_thread : consumer_thread,
                           options + i, NULL));
    gpr_event_wait(&options[i].on_started, ten_seconds_time());
  }

  /* start phase1: producers will pre-declare all operations they will
     complete */
  gpr_log(GPR_INFO, "start phase 1");
  gpr_event_set(&phase1, (void *)(intptr_t)1);

  gpr_log(GPR_INFO, "wait phase 1");
  for (i = 0; i < producers + consumers; i++) {
    GPR_ASSERT(gpr_event_wait(&options[i].on_phase1_done, ten_seconds_time()));
  }
  gpr_log(GPR_INFO, "done phase 1");

  /* start phase2: operations will complete, and consumers will consume them */
  gpr_log(GPR_INFO, "start phase 2");
  gpr_event_set(&phase2, (void *)(intptr_t)1);

  /* in parallel, we shutdown the completion channel - all events should still
     be consumed */
  grpc_completion_queue_shutdown(cc);

  /* join all threads */
  gpr_log(GPR_INFO, "wait phase 2");
  for (i = 0; i < producers + consumers; i++) {
    GPR_ASSERT(gpr_event_wait(&options[i].on_finished, ten_seconds_time()));
  }
  gpr_log(GPR_INFO, "done phase 2");

  /* destroy the completion channel */
  grpc_completion_queue_destroy(cc);

  /* verify that everything was produced and consumed */
  for (i = 0; i < producers + consumers; i++) {
    if (i < producers) {
      GPR_ASSERT(options[i].events_triggered == TEST_THREAD_EVENTS);
    } else {
      total_consumed += options[i].events_triggered;
    }
  }
  GPR_ASSERT(total_consumed == producers * TEST_THREAD_EVENTS);

  gpr_free(options);
}

int main(int argc, char **argv) {
  grpc_test_init(argc, argv);
  grpc_init();
  test_no_op();
  test_pollset_conversion();
  test_wait_empty();
  test_shutdown_then_next_polling();
  test_shutdown_then_next_with_timeout();
  test_cq_end_op();
  test_pluck();
  test_pluck_after_shutdown();
  test_too_many_plucks();
  test_threading(1, 1);
  test_threading(1, 10);
  test_threading(10, 1);
  test_threading(10, 10);
  grpc_shutdown();
  return 0;
}