text: /*
   *
   * Copyright 2015 gRPC authors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   */
  
  #include "src/core/lib/iomgr/port.h"
  
  #include "test/core/end2end/end2end_tests.h"
  
  #include <string.h>
  #ifdef GRPC_POSIX_SOCKET
  #include <unistd.h>
  #endif
  
  #include <grpc/support/alloc.h>
  #include <grpc/support/log.h>
  #include <grpc/support/sync.h>
  #include <grpc/support/thd.h>
  #include <grpc/support/useful.h>
  #include "src/core/ext/filters/client_channel/client_channel.h"
  #include "src/core/ext/filters/http/client/http_client_filter.h"
  #include "src/core/ext/filters/http/message_compress/message_compress_filter.h"
  #include "src/core/ext/filters/http/server/http_server_filter.h"
  #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
  #include "src/core/lib/channel/connected_channel.h"
  #include "src/core/lib/iomgr/endpoint_pair.h"
  #include "src/core/lib/iomgr/iomgr.h"
  #include "src/core/lib/support/env.h"
  #include "src/core/lib/surface/channel.h"
  #include "src/core/lib/surface/completion_queue.h"
  #include "src/core/lib/surface/server.h"
  #include "test/core/util/port.h"
  #include "test/core/util/test_config.h"
  
  /* chttp2 transport that is immediately available (used for testing
     connected_channel without a client_channel */
  
  static void server_setup_transport(void* ts, grpc_transport* transport) {
    grpc_end2end_test_fixture* f = static_cast<grpc_end2end_test_fixture*>(ts);
    grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
    grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
    grpc_endpoint_add_to_pollset(&exec_ctx, sfd->server, grpc_cq_pollset(f->cq));
    grpc_server_setup_transport(&exec_ctx, f->server, transport, nullptr,
                                grpc_server_get_channel_args(f->server));
    grpc_exec_ctx_finish(&exec_ctx);
  }
  
  typedef struct {
    grpc_end2end_test_fixture* f;
    grpc_channel_args* client_args;
  } sp_client_setup;
  
  static void client_setup_transport(grpc_exec_ctx* exec_ctx, void* ts,
                                     grpc_transport* transport) {
    sp_client_setup* cs = static_cast<sp_client_setup*>(ts);
  
    cs->f->client =
        grpc_channel_create(exec_ctx, "socketpair-target", cs->client_args,
                            GRPC_CLIENT_DIRECT_CHANNEL, transport);
  }
  
  static grpc_end2end_test_fixture chttp2_create_fixture_socketpair(
      grpc_channel_args* client_args, grpc_channel_args* server_args) {
    grpc_endpoint_pair* sfd =
        static_cast<grpc_endpoint_pair*>(gpr_malloc(sizeof(grpc_endpoint_pair)));
  
    grpc_end2end_test_fixture f;
    memset(&f, 0, sizeof(f));
    f.fixture_data = sfd;
    f.cq = grpc_completion_queue_create_for_next(nullptr);
    f.shutdown_cq = grpc_completion_queue_create_for_pluck(nullptr);
  
    *sfd = grpc_iomgr_create_endpoint_pair("fixture", nullptr);
  
    return f;
  }
  
  static void chttp2_init_client_socketpair(grpc_end2end_test_fixture* f,
                                            grpc_channel_args* client_args) {
    grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
    grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
    grpc_transport* transport;
    sp_client_setup cs;
    cs.client_args = client_args;
    cs.f = f;
    transport =
        grpc_create_chttp2_transport(&exec_ctx, client_args, sfd->client, true);
    client_setup_transport(&exec_ctx, &cs, transport);
    GPR_ASSERT(f->client);
    grpc_chttp2_transport_start_reading(&exec_ctx, transport, nullptr, nullptr);
    grpc_exec_ctx_finish(&exec_ctx);
  }
  
  static void chttp2_init_server_socketpair(grpc_end2end_test_fixture* f,
                                            grpc_channel_args* server_args) {
    grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
    grpc_endpoint_pair* sfd = static_cast<grpc_endpoint_pair*>(f->fixture_data);
    grpc_transport* transport;
    GPR_ASSERT(!f->server);
    f->server = grpc_server_create(server_args, nullptr);
    grpc_server_register_completion_queue(f->server, f->cq, nullptr);
    grpc_server_start(f->server);
    transport =
        grpc_create_chttp2_transport(&exec_ctx, server_args, sfd->server, false);
    server_setup_transport(f, transport);
    grpc_chttp2_transport_start_reading(&exec_ctx, transport, nullptr, nullptr);
    grpc_exec_ctx_finish(&exec_ctx);
  }
  
  static void chttp2_tear_down_socketpair(grpc_end2end_test_fixture* f) {
    gpr_free(f->fixture_data);
  }
  
  /* All test configurations */
  static grpc_end2end_test_config configs[] = {
      {"chttp2/socketpair", FEATURE_MASK_SUPPORTS_AUTHORITY_HEADER,
       chttp2_create_fixture_socketpair, chttp2_init_client_socketpair,
       chttp2_init_server_socketpair, chttp2_tear_down_socketpair},
  };
  
  int main(int argc, char** argv) {
    size_t i;
    grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
  
    /* force tracing on, with a value to force many
       code paths in trace.c to be taken */
    gpr_setenv("GRPC_TRACE", "doesnt-exist,http,all");
  #ifdef GRPC_POSIX_SOCKET
    g_fixture_slowdown_factor = isatty(STDOUT_FILENO) ? 10 : 1;
  #else
    g_fixture_slowdown_factor = 10;
  #endif
  
    grpc_test_init(argc, argv);
    grpc_end2end_tests_pre_init();
    grpc_init();
    grpc_exec_ctx_finish(&exec_ctx);
  
    GPR_ASSERT(0 == grpc_tracer_set_enabled("also-doesnt-exist", 0));
    GPR_ASSERT(1 == grpc_tracer_set_enabled("http", 1));
    GPR_ASSERT(1 == grpc_tracer_set_enabled("all", 1));
  
    for (i = 0; i < sizeof(configs) / sizeof(*configs); i++) {
      grpc_end2end_tests(argc, argv, configs[i]);
    }
  
    grpc_shutdown();
  
    return 0;
  }
  