David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright 2015, Google Inc. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 34 | #include <stdarg.h> |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 35 | #include <string.h> |
| 36 | |
| 37 | #include <grpc/grpc.h> |
| 38 | #include <grpc/support/alloc.h> |
| 39 | #include <grpc/support/host_port.h> |
| 40 | #include <grpc/support/log.h> |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 41 | #include <grpc/support/time.h> |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 42 | #include <grpc/support/string_util.h> |
| 43 | |
| 44 | #include "src/core/channel/channel_stack.h" |
| 45 | #include "src/core/surface/channel.h" |
| 46 | #include "src/core/channel/client_channel.h" |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 47 | #include "src/core/support/string.h" |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 48 | #include "src/core/surface/server.h" |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 49 | #include "test/core/util/test_config.h" |
| 50 | #include "test/core/util/port.h" |
| 51 | #include "test/core/end2end/cq_verifier.h" |
| 52 | |
| 53 | typedef struct servers_fixture { |
| 54 | size_t num_servers; |
| 55 | grpc_server **servers; |
| 56 | grpc_call **server_calls; |
| 57 | grpc_completion_queue *cq; |
| 58 | char **servers_hostports; |
| 59 | grpc_metadata_array *request_metadata_recv; |
| 60 | } servers_fixture; |
| 61 | |
| 62 | typedef void (*verifier_fn)(const servers_fixture *, grpc_channel *, |
| 63 | const int *, const size_t); |
| 64 | |
| 65 | typedef struct test_spec { |
| 66 | size_t num_iters; |
| 67 | size_t num_servers; |
| 68 | |
| 69 | int **kill_at; |
| 70 | int **revive_at; |
| 71 | |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 72 | const char *description; |
| 73 | |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 74 | verifier_fn verifier; |
| 75 | |
| 76 | } test_spec; |
| 77 | |
| 78 | static void test_spec_reset(test_spec *spec) { |
| 79 | size_t i, j; |
| 80 | |
| 81 | for (i = 0; i < spec->num_iters; i++) { |
| 82 | for (j = 0; j < spec->num_servers; j++) { |
| 83 | spec->kill_at[i][j] = 0; |
| 84 | spec->revive_at[i][j] = 0; |
| 85 | } |
| 86 | } |
| 87 | } |
| 88 | |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 89 | static test_spec *test_spec_create(size_t num_iters, size_t num_servers) { |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 90 | test_spec *spec; |
| 91 | size_t i; |
| 92 | |
| 93 | spec = gpr_malloc(sizeof(test_spec)); |
| 94 | spec->num_iters = num_iters; |
| 95 | spec->num_servers = num_servers; |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 96 | spec->kill_at = gpr_malloc(sizeof(int *) * num_iters); |
| 97 | spec->revive_at = gpr_malloc(sizeof(int *) * num_iters); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 98 | for (i = 0; i < num_iters; i++) { |
| 99 | spec->kill_at[i] = gpr_malloc(sizeof(int) * num_servers); |
| 100 | spec->revive_at[i] = gpr_malloc(sizeof(int) * num_servers); |
| 101 | } |
| 102 | |
| 103 | test_spec_reset(spec); |
| 104 | return spec; |
| 105 | } |
| 106 | |
| 107 | static void test_spec_destroy(test_spec *spec) { |
| 108 | size_t i; |
| 109 | for (i = 0; i < spec->num_iters; i++) { |
| 110 | gpr_free(spec->kill_at[i]); |
| 111 | gpr_free(spec->revive_at[i]); |
| 112 | } |
| 113 | |
| 114 | gpr_free(spec->kill_at); |
| 115 | gpr_free(spec->revive_at); |
| 116 | |
| 117 | gpr_free(spec); |
| 118 | } |
| 119 | |
| 120 | static void *tag(gpr_intptr t) { return (void *)t; } |
| 121 | |
| 122 | static gpr_timespec n_seconds_time(int n) { |
| 123 | return GRPC_TIMEOUT_SECONDS_TO_DEADLINE(n); |
| 124 | } |
| 125 | |
| 126 | static void drain_cq(grpc_completion_queue *cq) { |
| 127 | grpc_event ev; |
| 128 | do { |
| 129 | ev = grpc_completion_queue_next(cq, n_seconds_time(5), NULL); |
| 130 | } while (ev.type != GRPC_QUEUE_SHUTDOWN); |
| 131 | } |
| 132 | |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 133 | static void kill_server(const servers_fixture *f, size_t i) { |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 134 | gpr_log(GPR_INFO, "KILLING SERVER %d", i); |
| 135 | GPR_ASSERT(f->servers[i] != NULL); |
| 136 | grpc_server_shutdown_and_notify(f->servers[i], f->cq, tag(10000)); |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 137 | GPR_ASSERT(grpc_completion_queue_pluck( |
| 138 | f->cq, tag(10000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL) |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 139 | .type == GRPC_OP_COMPLETE); |
| 140 | grpc_server_destroy(f->servers[i]); |
| 141 | f->servers[i] = NULL; |
| 142 | } |
| 143 | |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 144 | static void revive_server(const servers_fixture *f, size_t i) { |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 145 | int got_port; |
| 146 | gpr_log(GPR_INFO, "RAISE AGAIN SERVER %d", i); |
| 147 | GPR_ASSERT(f->servers[i] == NULL); |
| 148 | f->servers[i] = grpc_server_create(NULL, NULL); |
| 149 | grpc_server_register_completion_queue(f->servers[i], f->cq, NULL); |
| 150 | GPR_ASSERT((got_port = grpc_server_add_insecure_http2_port( |
| 151 | f->servers[i], f->servers_hostports[i])) > 0); |
| 152 | grpc_server_start(f->servers[i]); |
| 153 | } |
| 154 | |
| 155 | static servers_fixture *setup_servers(const char *server_host, |
| 156 | const size_t num_servers) { |
| 157 | servers_fixture *f = gpr_malloc(sizeof(servers_fixture)); |
| 158 | int *ports; |
| 159 | int got_port; |
| 160 | size_t i; |
| 161 | |
| 162 | f->num_servers = num_servers; |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 163 | f->server_calls = gpr_malloc(sizeof(grpc_call *) * num_servers); |
| 164 | f->request_metadata_recv = |
| 165 | gpr_malloc(sizeof(grpc_metadata_array) * num_servers); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 166 | /* Create servers. */ |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 167 | ports = gpr_malloc(sizeof(int *) * num_servers); |
| 168 | f->servers = gpr_malloc(sizeof(grpc_server *) * num_servers); |
| 169 | f->servers_hostports = gpr_malloc(sizeof(char *) * num_servers); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 170 | f->cq = grpc_completion_queue_create(NULL); |
| 171 | for (i = 0; i < num_servers; i++) { |
| 172 | ports[i] = grpc_pick_unused_port_or_die(); |
| 173 | |
| 174 | gpr_join_host_port(&f->servers_hostports[i], server_host, ports[i]); |
| 175 | |
| 176 | f->servers[i] = grpc_server_create(NULL, NULL); |
| 177 | grpc_server_register_completion_queue(f->servers[i], f->cq, NULL); |
| 178 | GPR_ASSERT((got_port = grpc_server_add_insecure_http2_port( |
| 179 | f->servers[i], f->servers_hostports[i])) > 0); |
| 180 | GPR_ASSERT(ports[i] == got_port); |
| 181 | grpc_server_start(f->servers[i]); |
| 182 | } |
| 183 | gpr_free(ports); |
| 184 | return f; |
| 185 | } |
| 186 | |
| 187 | static void teardown_servers(servers_fixture *f) { |
| 188 | size_t i; |
| 189 | /* Destroy server. */ |
| 190 | for (i = 0; i < f->num_servers; i++) { |
| 191 | if (f->servers[i] == NULL) continue; |
| 192 | grpc_server_shutdown_and_notify(f->servers[i], f->cq, tag(10000)); |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 193 | GPR_ASSERT(grpc_completion_queue_pluck( |
| 194 | f->cq, tag(10000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL) |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 195 | .type == GRPC_OP_COMPLETE); |
| 196 | grpc_server_destroy(f->servers[i]); |
| 197 | } |
| 198 | grpc_completion_queue_shutdown(f->cq); |
| 199 | drain_cq(f->cq); |
| 200 | grpc_completion_queue_destroy(f->cq); |
| 201 | |
| 202 | gpr_free(f->servers); |
| 203 | |
| 204 | for (i = 0; i < f->num_servers; i++) { |
| 205 | gpr_free(f->servers_hostports[i]); |
| 206 | } |
| 207 | |
| 208 | gpr_free(f->servers_hostports); |
| 209 | gpr_free(f->request_metadata_recv); |
| 210 | gpr_free(f->server_calls); |
| 211 | gpr_free(f); |
| 212 | } |
| 213 | |
| 214 | /** Returns connection sequence (server indices), which must be freed */ |
| 215 | int *perform_request(servers_fixture *f, grpc_channel *client, |
| 216 | const test_spec *spec) { |
| 217 | grpc_call *c; |
| 218 | int s_idx; |
| 219 | int *s_valid; |
| 220 | gpr_timespec deadline; |
| 221 | grpc_op ops[6]; |
| 222 | grpc_op *op; |
| 223 | grpc_status_code status; |
| 224 | char *details; |
| 225 | size_t details_capacity; |
| 226 | int was_cancelled; |
| 227 | grpc_call_details *call_details; |
| 228 | size_t i, iter_num; |
| 229 | grpc_event ev; |
| 230 | int read_tag; |
| 231 | int *connection_sequence; |
| 232 | grpc_metadata_array initial_metadata_recv; |
| 233 | grpc_metadata_array trailing_metadata_recv; |
| 234 | |
| 235 | s_valid = gpr_malloc(sizeof(int) * f->num_servers); |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 236 | call_details = gpr_malloc(sizeof(grpc_call_details) * f->num_servers); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 237 | connection_sequence = gpr_malloc(sizeof(int) * spec->num_iters); |
| 238 | |
| 239 | /* Send a trivial request. */ |
| 240 | deadline = n_seconds_time(60); |
| 241 | |
| 242 | for (iter_num = 0; iter_num < spec->num_iters; iter_num++) { |
| 243 | cq_verifier *cqv = cq_verifier_create(f->cq); |
| 244 | details = NULL; |
| 245 | details_capacity = 0; |
| 246 | was_cancelled = 2; |
| 247 | |
| 248 | for (i = 0; i < f->num_servers; i++) { |
| 249 | if (spec->kill_at[iter_num][i] != 0) { |
| 250 | kill_server(f, i); |
| 251 | } else if (spec->revive_at[iter_num][i] != 0) { |
| 252 | /* killing takes precedence */ |
| 253 | revive_server(f, i); |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | connection_sequence[iter_num] = -1; |
| 258 | grpc_metadata_array_init(&initial_metadata_recv); |
| 259 | grpc_metadata_array_init(&trailing_metadata_recv); |
| 260 | |
| 261 | for (i = 0; i < f->num_servers; i++) { |
| 262 | grpc_call_details_init(&call_details[i]); |
| 263 | } |
| 264 | memset(s_valid, 0, f->num_servers * sizeof(int)); |
| 265 | |
| 266 | c = grpc_channel_create_call(client, NULL, GRPC_PROPAGATE_DEFAULTS, f->cq, |
| 267 | "/foo", "foo.test.google.fr", deadline, NULL); |
| 268 | GPR_ASSERT(c); |
| 269 | |
| 270 | op = ops; |
| 271 | op->op = GRPC_OP_SEND_INITIAL_METADATA; |
| 272 | op->data.send_initial_metadata.count = 0; |
| 273 | op->flags = 0; |
| 274 | op->reserved = NULL; |
| 275 | op++; |
| 276 | op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; |
| 277 | op->flags = 0; |
| 278 | op->reserved = NULL; |
| 279 | op++; |
| 280 | op->op = GRPC_OP_RECV_INITIAL_METADATA; |
| 281 | op->data.recv_initial_metadata = &initial_metadata_recv; |
| 282 | op->flags = 0; |
| 283 | op->reserved = NULL; |
| 284 | op++; |
| 285 | op->op = GRPC_OP_RECV_STATUS_ON_CLIENT; |
| 286 | op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv; |
| 287 | op->data.recv_status_on_client.status = &status; |
| 288 | op->data.recv_status_on_client.status_details = &details; |
| 289 | op->data.recv_status_on_client.status_details_capacity = &details_capacity; |
| 290 | op->flags = 0; |
| 291 | op->reserved = NULL; |
| 292 | op++; |
| 293 | GPR_ASSERT(GRPC_CALL_OK == |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 294 | grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL)); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 295 | |
| 296 | /* "listen" on all servers */ |
| 297 | for (i = 0; i < f->num_servers; i++) { |
| 298 | grpc_metadata_array_init(&f->request_metadata_recv[i]); |
| 299 | if (f->servers[i] != NULL) { |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 300 | GPR_ASSERT(GRPC_CALL_OK == |
| 301 | grpc_server_request_call(f->servers[i], &f->server_calls[i], |
| 302 | &call_details[i], |
| 303 | &f->request_metadata_recv[i], f->cq, |
| 304 | f->cq, tag(1000 + (int)i))); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 305 | } |
| 306 | } |
| 307 | |
| 308 | s_idx = -1; |
| 309 | while ((ev = grpc_completion_queue_next( |
| 310 | f->cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1), NULL)) |
| 311 | .type != GRPC_QUEUE_TIMEOUT) { |
| 312 | read_tag = ((int)(gpr_intptr)ev.tag); |
| 313 | gpr_log(GPR_DEBUG, "EVENT: success:%d, type:%d, tag:%d iter:%d", |
| 314 | ev.success, ev.type, read_tag, iter_num); |
| 315 | if (ev.success && read_tag >= 1000) { |
| 316 | GPR_ASSERT(s_idx == -1); /* only one server must reply */ |
| 317 | /* only server notifications for non-shutdown events */ |
| 318 | s_idx = read_tag - 1000; |
| 319 | s_valid[s_idx] = 1; |
| 320 | connection_sequence[iter_num] = s_idx; |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | if (s_idx >= 0) { |
| 325 | op = ops; |
| 326 | op->op = GRPC_OP_SEND_INITIAL_METADATA; |
| 327 | op->data.send_initial_metadata.count = 0; |
| 328 | op->flags = 0; |
| 329 | op->reserved = NULL; |
| 330 | op++; |
| 331 | op->op = GRPC_OP_SEND_STATUS_FROM_SERVER; |
| 332 | op->data.send_status_from_server.trailing_metadata_count = 0; |
| 333 | op->data.send_status_from_server.status = GRPC_STATUS_UNIMPLEMENTED; |
| 334 | op->data.send_status_from_server.status_details = "xyz"; |
| 335 | op->flags = 0; |
| 336 | op->reserved = NULL; |
| 337 | op++; |
| 338 | op->op = GRPC_OP_RECV_CLOSE_ON_SERVER; |
| 339 | op->data.recv_close_on_server.cancelled = &was_cancelled; |
| 340 | op->flags = 0; |
| 341 | op->reserved = NULL; |
| 342 | op++; |
| 343 | GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(f->server_calls[s_idx], |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 344 | ops, (size_t)(op - ops), |
| 345 | tag(102), NULL)); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 346 | |
| 347 | cq_expect_completion(cqv, tag(102), 1); |
| 348 | cq_expect_completion(cqv, tag(1), 1); |
| 349 | cq_verify(cqv); |
| 350 | |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 351 | GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED); |
| 352 | GPR_ASSERT(0 == strcmp(details, "xyz")); |
| 353 | GPR_ASSERT(0 == strcmp(call_details[s_idx].method, "/foo")); |
| 354 | GPR_ASSERT(0 == strcmp(call_details[s_idx].host, "foo.test.google.fr")); |
| 355 | GPR_ASSERT(was_cancelled == 1); |
| 356 | } |
| 357 | |
| 358 | for (i = 0; i < f->num_servers; i++) { |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 359 | if (s_valid[i] != 0) { |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 360 | grpc_call_destroy(f->server_calls[i]); |
| 361 | } |
| 362 | grpc_metadata_array_destroy(&f->request_metadata_recv[i]); |
| 363 | } |
| 364 | grpc_metadata_array_destroy(&initial_metadata_recv); |
| 365 | grpc_metadata_array_destroy(&trailing_metadata_recv); |
| 366 | |
| 367 | cq_verifier_destroy(cqv); |
| 368 | |
| 369 | grpc_call_destroy(c); |
| 370 | |
| 371 | for (i = 0; i < f->num_servers; i++) { |
| 372 | grpc_call_details_destroy(&call_details[i]); |
| 373 | } |
| 374 | gpr_free(details); |
| 375 | } |
| 376 | |
| 377 | gpr_free(call_details); |
| 378 | gpr_free(s_valid); |
| 379 | |
| 380 | return connection_sequence; |
| 381 | } |
| 382 | |
| 383 | static void assert_channel_connectivity( |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 384 | grpc_channel *ch, size_t num_accepted_conn_states, |
David Garcia Quintas | 56d66c2 | 2015-09-11 22:19:18 -0700 | [diff] [blame] | 385 | grpc_connectivity_state accepted_conn_state, ...) { |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 386 | size_t i; |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 387 | grpc_channel_stack *client_stack; |
| 388 | grpc_channel_element *client_channel_filter; |
| 389 | grpc_connectivity_state actual_conn_state; |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 390 | va_list ap; |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 391 | |
| 392 | client_stack = grpc_channel_get_channel_stack(ch); |
| 393 | client_channel_filter = grpc_channel_stack_last_element(client_stack); |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 394 | |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 395 | actual_conn_state = grpc_client_channel_check_connectivity_state( |
| 396 | client_channel_filter, 0 /* don't try to connect */); |
David Garcia Quintas | 56d66c2 | 2015-09-11 22:19:18 -0700 | [diff] [blame] | 397 | va_start(ap, accepted_conn_state); |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 398 | for (i = 0; i < num_accepted_conn_states; i++) { |
David Garcia Quintas | 56d66c2 | 2015-09-11 22:19:18 -0700 | [diff] [blame] | 399 | if (actual_conn_state == accepted_conn_state) { |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 400 | break; |
| 401 | } |
David Garcia Quintas | 56d66c2 | 2015-09-11 22:19:18 -0700 | [diff] [blame] | 402 | accepted_conn_state = va_arg(ap, grpc_connectivity_state); |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 403 | } |
| 404 | va_end(ap); |
| 405 | if (i == num_accepted_conn_states) { |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 406 | char **accepted_strs = |
| 407 | gpr_malloc(sizeof(char *) * num_accepted_conn_states); |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 408 | char *accepted_str_joined; |
David Garcia Quintas | 56d66c2 | 2015-09-11 22:19:18 -0700 | [diff] [blame] | 409 | va_start(ap, accepted_conn_state); |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 410 | for (i = 0; i < num_accepted_conn_states; i++) { |
David Garcia Quintas | 56d66c2 | 2015-09-11 22:19:18 -0700 | [diff] [blame] | 411 | GPR_ASSERT(gpr_asprintf(&accepted_strs[i], "%d", accepted_conn_state) > |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 412 | 0); |
David Garcia Quintas | 56d66c2 | 2015-09-11 22:19:18 -0700 | [diff] [blame] | 413 | accepted_conn_state = va_arg(ap, grpc_connectivity_state); |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 414 | } |
| 415 | va_end(ap); |
| 416 | accepted_str_joined = gpr_strjoin_sep((const char **)accepted_strs, |
| 417 | num_accepted_conn_states, ", ", NULL); |
| 418 | gpr_log( |
| 419 | GPR_ERROR, |
| 420 | "Channel connectivity assertion failed: expected <one of [%s]>, got %d", |
| 421 | accepted_str_joined, actual_conn_state); |
| 422 | |
| 423 | for (i = 0; i < num_accepted_conn_states; i++) { |
| 424 | gpr_free(accepted_strs[i]); |
| 425 | } |
| 426 | gpr_free(accepted_strs); |
| 427 | gpr_free(accepted_str_joined); |
| 428 | abort(); |
| 429 | } |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 430 | } |
| 431 | |
| 432 | void run_spec(const test_spec *spec) { |
| 433 | grpc_channel *client; |
| 434 | char *client_hostport; |
| 435 | char *servers_hostports_str; |
| 436 | int *actual_connection_sequence; |
| 437 | servers_fixture *f = setup_servers("127.0.0.1", spec->num_servers); |
| 438 | |
| 439 | /* Create client. */ |
| 440 | servers_hostports_str = gpr_strjoin_sep((const char **)f->servers_hostports, |
| 441 | f->num_servers, ",", NULL); |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 442 | gpr_asprintf(&client_hostport, "ipv4:%s?lb_policy=round_robin", |
| 443 | servers_hostports_str); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 444 | client = grpc_insecure_channel_create(client_hostport, NULL, NULL); |
| 445 | |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 446 | gpr_log(GPR_INFO, "Testing '%s' with servers=%s client=%s", spec->description, |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 447 | servers_hostports_str, client_hostport); |
| 448 | |
| 449 | actual_connection_sequence = perform_request(f, client, spec); |
| 450 | |
| 451 | spec->verifier(f, client, actual_connection_sequence, spec->num_iters); |
| 452 | |
| 453 | gpr_free(client_hostport); |
| 454 | gpr_free(servers_hostports_str); |
| 455 | gpr_free(actual_connection_sequence); |
| 456 | |
| 457 | grpc_channel_destroy(client); |
| 458 | teardown_servers(f); |
| 459 | } |
| 460 | |
| 461 | static void print_failed_expectations(const int *expected_connection_sequence, |
| 462 | const int *actual_connection_sequence, |
| 463 | const size_t expected_seq_length, |
| 464 | const size_t num_iters) { |
| 465 | size_t i; |
| 466 | for (i = 0; i < num_iters; i++) { |
| 467 | gpr_log(GPR_ERROR, "FAILURE: Iter, expected, actual:%d (%d, %d)", i, |
| 468 | expected_connection_sequence[i % expected_seq_length], |
| 469 | actual_connection_sequence[i]); |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | static void verify_vanilla_round_robin(const servers_fixture *f, |
| 474 | grpc_channel *client, |
| 475 | const int *actual_connection_sequence, |
| 476 | const size_t num_iters) { |
| 477 | int *expected_connection_sequence; |
| 478 | size_t i; |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 479 | const size_t expected_seq_length = f->num_servers; |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 480 | |
| 481 | /* verify conn. seq. expectation */ |
| 482 | /* get the first sequence of "num_servers" elements */ |
| 483 | expected_connection_sequence = gpr_malloc(sizeof(int) * expected_seq_length); |
| 484 | memcpy(expected_connection_sequence, actual_connection_sequence, |
| 485 | sizeof(int) * expected_seq_length); |
| 486 | |
| 487 | for (i = 0; i < num_iters; i++) { |
| 488 | const int actual = actual_connection_sequence[i]; |
| 489 | const int expected = expected_connection_sequence[i % expected_seq_length]; |
| 490 | if (actual != expected) { |
| 491 | gpr_log(GPR_ERROR, "FAILURE: expected %d, actual %d at iter %d", expected, |
| 492 | actual, i); |
| 493 | print_failed_expectations(expected_connection_sequence, |
| 494 | actual_connection_sequence, expected_seq_length, |
| 495 | num_iters); |
| 496 | abort(); |
| 497 | } |
| 498 | } |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 499 | assert_channel_connectivity(client, 1, GRPC_CHANNEL_READY); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 500 | |
| 501 | gpr_free(expected_connection_sequence); |
| 502 | } |
| 503 | |
| 504 | /* At the start of the second iteration, all but the first and last servers (as |
| 505 | * given in "f") are killed */ |
| 506 | static void verify_vanishing_floor_round_robin( |
| 507 | const servers_fixture *f, grpc_channel *client, |
| 508 | const int *actual_connection_sequence, const size_t num_iters) { |
| 509 | int *expected_connection_sequence; |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 510 | const size_t expected_seq_length = 2; |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 511 | size_t i; |
| 512 | |
| 513 | /* verify conn. seq. expectation */ |
| 514 | /* copy the first full sequence (without -1s) */ |
| 515 | expected_connection_sequence = gpr_malloc(sizeof(int) * expected_seq_length); |
| 516 | memcpy(expected_connection_sequence, actual_connection_sequence + 2, |
| 517 | expected_seq_length * sizeof(int)); |
| 518 | |
| 519 | /* first three elements of the sequence should be [<1st>, -1] */ |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 520 | if (actual_connection_sequence[0] != expected_connection_sequence[0]) { |
| 521 | gpr_log(GPR_ERROR, "FAILURE: expected %d, actual %d at iter %d", |
| 522 | expected_connection_sequence[0], actual_connection_sequence[0], 0); |
| 523 | print_failed_expectations(expected_connection_sequence, |
| 524 | actual_connection_sequence, expected_seq_length, |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 525 | 1u); |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 526 | abort(); |
| 527 | } |
| 528 | |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 529 | GPR_ASSERT(actual_connection_sequence[1] == -1); |
| 530 | |
| 531 | for (i = 2; i < num_iters; i++) { |
| 532 | const int actual = actual_connection_sequence[i]; |
| 533 | const int expected = expected_connection_sequence[i % expected_seq_length]; |
| 534 | if (actual != expected) { |
| 535 | gpr_log(GPR_ERROR, "FAILURE: expected %d, actual %d at iter %d", expected, |
| 536 | actual, i); |
| 537 | print_failed_expectations(expected_connection_sequence, |
| 538 | actual_connection_sequence, expected_seq_length, |
| 539 | num_iters); |
| 540 | abort(); |
| 541 | } |
| 542 | } |
| 543 | gpr_free(expected_connection_sequence); |
| 544 | } |
| 545 | |
| 546 | static void verify_total_carnage_round_robin( |
| 547 | const servers_fixture *f, grpc_channel *client, |
| 548 | const int *actual_connection_sequence, const size_t num_iters) { |
| 549 | size_t i; |
| 550 | |
| 551 | for (i = 0; i < num_iters; i++) { |
| 552 | const int actual = actual_connection_sequence[i]; |
| 553 | const int expected = -1; |
| 554 | if (actual != expected) { |
| 555 | gpr_log(GPR_ERROR, "FAILURE: expected %d, actual %d at iter %d", expected, |
| 556 | actual, i); |
| 557 | abort(); |
| 558 | } |
| 559 | } |
| 560 | |
| 561 | /* even though we know all the servers are dead, the client is still trying |
| 562 | * retrying, believing it's in a transient failure situation */ |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 563 | assert_channel_connectivity(client, 2, GRPC_CHANNEL_TRANSIENT_FAILURE, |
| 564 | GRPC_CHANNEL_CONNECTING); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 565 | } |
| 566 | |
| 567 | static void verify_partial_carnage_round_robin( |
| 568 | const servers_fixture *f, grpc_channel *client, |
| 569 | const int *actual_connection_sequence, const size_t num_iters) { |
| 570 | int *expected_connection_sequence; |
| 571 | size_t i; |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 572 | const size_t expected_seq_length = f->num_servers; |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 573 | |
| 574 | /* verify conn. seq. expectation */ |
| 575 | /* get the first sequence of "num_servers" elements */ |
| 576 | expected_connection_sequence = gpr_malloc(sizeof(int) * expected_seq_length); |
| 577 | memcpy(expected_connection_sequence, actual_connection_sequence, |
| 578 | sizeof(int) * expected_seq_length); |
| 579 | |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 580 | for (i = 0; i < num_iters / 2; i++) { |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 581 | const int actual = actual_connection_sequence[i]; |
| 582 | const int expected = expected_connection_sequence[i % expected_seq_length]; |
| 583 | if (actual != expected) { |
| 584 | gpr_log(GPR_ERROR, "FAILURE: expected %d, actual %d at iter %d", expected, |
| 585 | actual, i); |
| 586 | print_failed_expectations(expected_connection_sequence, |
| 587 | actual_connection_sequence, expected_seq_length, |
| 588 | num_iters); |
| 589 | abort(); |
| 590 | } |
| 591 | } |
| 592 | |
| 593 | /* second half of the iterations go without response */ |
| 594 | for (; i < num_iters; i++) { |
| 595 | GPR_ASSERT(actual_connection_sequence[i] == -1); |
| 596 | } |
| 597 | |
| 598 | /* even though we know all the servers are dead, the client is still trying |
| 599 | * retrying, believing it's in a transient failure situation */ |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 600 | assert_channel_connectivity(client, 2, GRPC_CHANNEL_TRANSIENT_FAILURE, |
| 601 | GRPC_CHANNEL_CONNECTING); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 602 | gpr_free(expected_connection_sequence); |
| 603 | } |
| 604 | |
| 605 | static void verify_rebirth_round_robin(const servers_fixture *f, |
| 606 | grpc_channel *client, |
| 607 | const int *actual_connection_sequence, |
| 608 | const size_t num_iters) { |
| 609 | int *expected_connection_sequence; |
| 610 | size_t i; |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 611 | const size_t expected_seq_length = f->num_servers; |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 612 | |
| 613 | /* verify conn. seq. expectation */ |
| 614 | /* get the first sequence of "num_servers" elements */ |
| 615 | expected_connection_sequence = gpr_malloc(sizeof(int) * expected_seq_length); |
| 616 | memcpy(expected_connection_sequence, actual_connection_sequence + 4, |
| 617 | sizeof(int) * expected_seq_length); |
| 618 | |
| 619 | /* first iteration succeeds */ |
| 620 | GPR_ASSERT(actual_connection_sequence[0] != -1); |
| 621 | |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 622 | /* back up on the third (or maybe fourth) iteration */ |
| 623 | i = 3; |
| 624 | if (actual_connection_sequence[i] == -1) { |
| 625 | i = 4; |
| 626 | } |
| 627 | for (; i < num_iters; i++) { |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 628 | const int actual = actual_connection_sequence[i]; |
| 629 | const int expected = expected_connection_sequence[i % expected_seq_length]; |
| 630 | if (actual != expected) { |
| 631 | gpr_log(GPR_ERROR, "FAILURE: expected %d, actual %d at iter %d", expected, |
| 632 | actual, i); |
| 633 | print_failed_expectations(expected_connection_sequence, |
| 634 | actual_connection_sequence, expected_seq_length, |
| 635 | num_iters); |
| 636 | abort(); |
| 637 | } |
| 638 | } |
| 639 | |
| 640 | /* things are fine once the servers are brought back up */ |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 641 | assert_channel_connectivity(client, 1, GRPC_CHANNEL_READY); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 642 | gpr_free(expected_connection_sequence); |
| 643 | } |
| 644 | |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 645 | int main(int argc, char **argv) { |
| 646 | test_spec *spec; |
| 647 | size_t i; |
| 648 | const size_t NUM_ITERS = 10; |
| 649 | const size_t NUM_SERVERS = 4; |
| 650 | |
| 651 | grpc_test_init(argc, argv); |
| 652 | grpc_init(); |
| 653 | |
| 654 | /* everything is fine, all servers stay up the whole time and life's peachy */ |
| 655 | spec = test_spec_create(NUM_ITERS, NUM_SERVERS); |
| 656 | spec->verifier = verify_vanilla_round_robin; |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 657 | spec->description = "test_all_server_up"; |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 658 | run_spec(spec); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 659 | |
| 660 | /* Kill all servers first thing in the morning */ |
| 661 | test_spec_reset(spec); |
| 662 | spec->verifier = verify_total_carnage_round_robin; |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 663 | spec->description = "test_kill_all_server"; |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 664 | for (i = 0; i < NUM_SERVERS; i++) { |
| 665 | spec->kill_at[0][i] = 1; |
| 666 | } |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 667 | run_spec(spec); |
| 668 | |
| 669 | /* at the start of the 2nd iteration, kill all but the first and last servers. |
| 670 | * This should knock down the server bound to be selected next */ |
| 671 | test_spec_reset(spec); |
| 672 | spec->verifier = verify_vanishing_floor_round_robin; |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 673 | spec->description = "test_kill_all_server_at_2nd_iteration"; |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 674 | for (i = 1; i < NUM_SERVERS - 1; i++) { |
| 675 | spec->kill_at[1][i] = 1; |
| 676 | } |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 677 | run_spec(spec); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 678 | |
| 679 | /* Midway, kill all servers. */ |
| 680 | test_spec_reset(spec); |
| 681 | spec->verifier = verify_partial_carnage_round_robin; |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 682 | spec->description = "test_kill_all_server_midway"; |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 683 | for (i = 0; i < NUM_SERVERS; i++) { |
| 684 | spec->kill_at[spec->num_iters / 2][i] = 1; |
| 685 | } |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 686 | run_spec(spec); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 687 | |
| 688 | /* After first iteration, kill all servers. On the third one, bring them all |
| 689 | * back up. */ |
| 690 | test_spec_reset(spec); |
| 691 | spec->verifier = verify_rebirth_round_robin; |
David Garcia Quintas | fe7a636 | 2015-09-10 11:06:46 -0700 | [diff] [blame] | 692 | spec->description = "test_kill_all_server_after_1st_resurrect_at_3rd"; |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 693 | for (i = 0; i < NUM_SERVERS; i++) { |
| 694 | spec->kill_at[1][i] = 1; |
| 695 | spec->revive_at[3][i] = 1; |
| 696 | } |
David Garcia Quintas | a4c43a6 | 2015-09-11 13:33:57 -0700 | [diff] [blame] | 697 | run_spec(spec); |
David Garcia Quintas | 4fb049b | 2015-09-03 17:26:06 -0700 | [diff] [blame] | 698 | |
| 699 | test_spec_destroy(spec); |
| 700 | |
| 701 | grpc_shutdown(); |
| 702 | return 0; |
| 703 | } |