test/core/end2end/tests/cancel_in_a_vacuum.cc

   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 <stdio.h>
  20 #include <string.h>
  21
  22 #include <grpc/byte_buffer.h>
  23 #include <grpc/support/alloc.h>
  24 #include <grpc/support/log.h>
  25 #include <grpc/support/time.h>
  26
  27 #include "src/core/lib/gpr/useful.h"
  28 #include "test/core/end2end/cq_verifier.h"
  29 #include "test/core/end2end/end2end_tests.h"
  30 #include "test/core/end2end/tests/cancel_test_helpers.h"
  31
  32 static void* tag(intptr_t t) { return reinterpret_cast<void*>(t); }
  33
  34 static grpc_end2end_test_fixture begin_test(grpc_end2end_test_config config,
  35                                             const char* test_name,
  36                                             cancellation_mode mode,
  37                                             grpc_channel_args* client_args,
  38                                             grpc_channel_args* server_args) {
  39   grpc_end2end_test_fixture f;
  40   gpr_log(GPR_INFO, "Running test: %s/%s/%s", test_name, config.name,
  41           mode.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
  48 static gpr_timespec n_seconds_from_now(int n) {
  49   return grpc_timeout_seconds_to_deadline(n);
  50 }
  51
  52 static gpr_timespec five_seconds_from_now(void) {
  53   return n_seconds_from_now(5);
  54 }
  55
  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
  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
  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
  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
  90 /* Cancel and do nothing */
  91 static void test_cancel_in_a_vacuum(grpc_end2end_test_config config,
  92                                     cancellation_mode mode) {
  93   grpc_call* c;
  94   grpc_end2end_test_fixture f =
  95       begin_test(config, "test_cancel_in_a_vacuum", mode, nullptr, nullptr);
  96   cq_verifier* v_client = cq_verifier_create(f.cq);
  97
  98   gpr_timespec deadline = five_seconds_from_now();
  99   c = grpc_channel_create_call(f.client, nullptr, GRPC_PROPAGATE_DEFAULTS, f.cq,
 100                                grpc_slice_from_static_string("/foo"), nullptr,
 101                                deadline, nullptr);
 102   GPR_ASSERT(c);
 103
 104   GPR_ASSERT(GRPC_CALL_OK == mode.initiate_cancel(c, nullptr));
 105
 106   grpc_call_unref(c);
 107
 108   cq_verifier_destroy(v_client);
 109   end_test(&f);
 110   config.tear_down_data(&f);
 111 }
 112
 113 void cancel_in_a_vacuum(grpc_end2end_test_config config) {
 114   unsigned i;
 115
 116   for (i = 0; i < GPR_ARRAY_SIZE(cancellation_modes); i++) {
 117     test_cancel_in_a_vacuum(config, cancellation_modes[i]);
 118   }
 119 }
 120
 121 void cancel_in_a_vacuum_pre_init(void) {}