diff options
author | 2018-06-08 11:11:59 +0200 | |
---|---|---|
committer | 2018-06-08 11:11:59 +0200 | |
commit | 61278f3aa72b8032f54728e6847b9655acb38ed2 (patch) | |
tree | a2f8f8b62cb51fdc408639be923dadd1e884d663 /test/cpp/naming/cancel_ares_query_test.cc | |
parent | 2ea5e1d1dee3d7d7219051723290293901e37fbc (diff) |
Revert "Fix shutdown of closed fd when c-ares opens a second fd"
Diffstat (limited to 'test/cpp/naming/cancel_ares_query_test.cc')
-rw-r--r-- | test/cpp/naming/cancel_ares_query_test.cc | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/test/cpp/naming/cancel_ares_query_test.cc b/test/cpp/naming/cancel_ares_query_test.cc deleted file mode 100644 index 11cdc0b774..0000000000 --- a/test/cpp/naming/cancel_ares_query_test.cc +++ /dev/null @@ -1,289 +0,0 @@ -/* - * - * 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 <stdio.h> -#include <string.h> - -#include <gflags/gflags.h> -#include <gmock/gmock.h> - -#include <grpc/byte_buffer.h> -#include <grpc/grpc.h> -#include <grpc/support/alloc.h> -#include <grpc/support/log.h> -#include <grpc/support/time.h> -#include "include/grpc/support/string_util.h" -#include "src/core/ext/filters/client_channel/resolver.h" -#include "src/core/ext/filters/client_channel/resolver_registry.h" -#include "src/core/lib/channel/channel_args.h" -#include "src/core/lib/debug/stats.h" -#include "src/core/lib/gpr/env.h" -#include "src/core/lib/gpr/host_port.h" -#include "src/core/lib/gpr/string.h" -#include "src/core/lib/gprpp/orphanable.h" -#include "src/core/lib/gprpp/thd.h" -#include "src/core/lib/iomgr/combiner.h" -#include "src/core/lib/iomgr/pollset.h" -#include "src/core/lib/iomgr/pollset_set.h" -#include "test/core/end2end/cq_verifier.h" -#include "test/core/util/cmdline.h" -#include "test/core/util/port.h" -#include "test/core/util/test_config.h" - -// TODO: pull in different headers when enabling this -// test on windows. Also set BAD_SOCKET_RETURN_VAL -// to INVALID_SOCKET on windows. -#include "src/core/lib/iomgr/sockaddr_posix.h" -#define BAD_SOCKET_RETURN_VAL -1 - -namespace { - -void* Tag(intptr_t t) { return (void*)t; } - -gpr_timespec FiveSecondsFromNow(void) { - return grpc_timeout_seconds_to_deadline(5); -} - -void DrainCq(grpc_completion_queue* cq) { - grpc_event ev; - do { - ev = grpc_completion_queue_next(cq, FiveSecondsFromNow(), nullptr); - } while (ev.type != GRPC_QUEUE_SHUTDOWN); -} - -void EndTest(grpc_channel* client, grpc_completion_queue* cq) { - grpc_channel_destroy(client); - grpc_completion_queue_shutdown(cq); - DrainCq(cq); - grpc_completion_queue_destroy(cq); -} - -class FakeNonResponsiveDNSServer { - public: - FakeNonResponsiveDNSServer(int port) { - socket_ = socket(AF_INET6, SOCK_DGRAM, 0); - if (socket_ == BAD_SOCKET_RETURN_VAL) { - gpr_log(GPR_DEBUG, "Failed to create UDP ipv6 socket"); - abort(); - } - sockaddr_in6 addr; - memset(&addr, 0, sizeof(addr)); - addr.sin6_family = AF_INET6; - addr.sin6_port = htons(port); - ((char*)&addr.sin6_addr)[15] = 1; - if (bind(socket_, (const sockaddr*)&addr, sizeof(addr)) != 0) { - gpr_log(GPR_DEBUG, "Failed to bind UDP ipv6 socket to [::1]:%d", port); - abort(); - } - } - ~FakeNonResponsiveDNSServer() { close(socket_); } - - private: - int socket_; -}; - -struct ArgsStruct { - gpr_atm done_atm; - gpr_mu* mu; - grpc_pollset* pollset; - grpc_pollset_set* pollset_set; - grpc_combiner* lock; - grpc_channel_args* channel_args; -}; - -void ArgsInit(ArgsStruct* args) { - args->pollset = (grpc_pollset*)gpr_zalloc(grpc_pollset_size()); - grpc_pollset_init(args->pollset, &args->mu); - args->pollset_set = grpc_pollset_set_create(); - grpc_pollset_set_add_pollset(args->pollset_set, args->pollset); - args->lock = grpc_combiner_create(); - gpr_atm_rel_store(&args->done_atm, 0); - args->channel_args = nullptr; -} - -void DoNothing(void* arg, grpc_error* error) {} - -void ArgsFinish(ArgsStruct* args) { - grpc_pollset_set_del_pollset(args->pollset_set, args->pollset); - grpc_pollset_set_destroy(args->pollset_set); - grpc_closure DoNothing_cb; - GRPC_CLOSURE_INIT(&DoNothing_cb, DoNothing, nullptr, - grpc_schedule_on_exec_ctx); - grpc_pollset_shutdown(args->pollset, &DoNothing_cb); - // exec_ctx needs to be flushed before calling grpc_pollset_destroy() - grpc_channel_args_destroy(args->channel_args); - grpc_core::ExecCtx::Get()->Flush(); - grpc_pollset_destroy(args->pollset); - gpr_free(args->pollset); - GRPC_COMBINER_UNREF(args->lock, nullptr); -} - -void PollPollsetUntilRequestDone(ArgsStruct* args) { - while (true) { - bool done = gpr_atm_acq_load(&args->done_atm) != 0; - if (done) { - break; - } - grpc_pollset_worker* worker = nullptr; - grpc_core::ExecCtx exec_ctx; - gpr_mu_lock(args->mu); - GRPC_LOG_IF_ERROR( - "pollset_work", - grpc_pollset_work(args->pollset, &worker, - grpc_timespec_to_millis_round_up( - gpr_inf_future(GPR_CLOCK_REALTIME)))); - gpr_mu_unlock(args->mu); - } -} - -void CheckResolverResultAssertFailureLocked(void* arg, grpc_error* error) { - EXPECT_NE(error, GRPC_ERROR_NONE); - ArgsStruct* args = static_cast<ArgsStruct*>(arg); - gpr_atm_rel_store(&args->done_atm, 1); - gpr_mu_lock(args->mu); - GRPC_LOG_IF_ERROR("pollset_kick", grpc_pollset_kick(args->pollset, nullptr)); - gpr_mu_unlock(args->mu); -} - -TEST(CancelDuringAresQuery, TestCancelActiveDNSQuery) { - grpc_core::ExecCtx exec_ctx; - ArgsStruct args; - ArgsInit(&args); - int fake_dns_port = grpc_pick_unused_port_or_die(); - FakeNonResponsiveDNSServer fake_dns_server(fake_dns_port); - char* client_target; - GPR_ASSERT(gpr_asprintf( - &client_target, - "dns://[::1]:%d/dont-care-since-wont-be-resolved.test.com:1234", - fake_dns_port)); - // create resolver and resolve - grpc_core::OrphanablePtr<grpc_core::Resolver> resolver = - grpc_core::ResolverRegistry::CreateResolver(client_target, nullptr, - args.pollset_set, args.lock); - gpr_free(client_target); - grpc_closure on_resolver_result_changed; - GRPC_CLOSURE_INIT(&on_resolver_result_changed, - CheckResolverResultAssertFailureLocked, (void*)&args, - grpc_combiner_scheduler(args.lock)); - resolver->NextLocked(&args.channel_args, &on_resolver_result_changed); - // Without resetting and causing resolver shutdown, the - // PollPollsetUntilRequestDone call should never finish. - resolver.reset(); - grpc_core::ExecCtx::Get()->Flush(); - PollPollsetUntilRequestDone(&args); - ArgsFinish(&args); -} - -TEST(CancelDuringAresQuery, - TestHitDeadlineAndDestroyChannelDuringAresResolutionIsGraceful) { - // Start up fake non responsive DNS server - int fake_dns_port = grpc_pick_unused_port_or_die(); - FakeNonResponsiveDNSServer fake_dns_server(fake_dns_port); - // Create a call that will try to use the fake DNS server - char* client_target = nullptr; - GPR_ASSERT(gpr_asprintf( - &client_target, - "dns://[::1]:%d/dont-care-since-wont-be-resolved.test.com:1234", - fake_dns_port)); - grpc_channel* client = - grpc_insecure_channel_create(client_target, - /* client_args */ nullptr, nullptr); - gpr_free(client_target); - grpc_completion_queue* cq = grpc_completion_queue_create_for_next(nullptr); - cq_verifier* cqv = cq_verifier_create(cq); - gpr_timespec deadline = grpc_timeout_milliseconds_to_deadline(10); - grpc_call* call = grpc_channel_create_call( - client, nullptr, GRPC_PROPAGATE_DEFAULTS, cq, - grpc_slice_from_static_string("/foo"), nullptr, deadline, nullptr); - GPR_ASSERT(call); - grpc_metadata_array initial_metadata_recv; - grpc_metadata_array trailing_metadata_recv; - grpc_metadata_array request_metadata_recv; - grpc_metadata_array_init(&initial_metadata_recv); - grpc_metadata_array_init(&trailing_metadata_recv); - grpc_metadata_array_init(&request_metadata_recv); - grpc_call_details call_details; - grpc_call_details_init(&call_details); - grpc_status_code status; - const char* error_string; - grpc_slice details; - // Set ops for client the request - grpc_op ops_base[6]; - memset(ops_base, 0, sizeof(ops_base)); - grpc_op* op = ops_base; - op->op = GRPC_OP_SEND_INITIAL_METADATA; - op->data.send_initial_metadata.count = 0; - op->flags = 0; - op->reserved = nullptr; - op++; - op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; - op->flags = 0; - op->reserved = nullptr; - op++; - op->op = GRPC_OP_RECV_INITIAL_METADATA; - op->data.recv_initial_metadata.recv_initial_metadata = &initial_metadata_recv; - op->flags = 0; - op->reserved = nullptr; - 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->data.recv_status_on_client.error_string = &error_string; - op->flags = 0; - op->reserved = nullptr; - op++; - // Run the call and sanity check it failed as expected - grpc_call_error error = grpc_call_start_batch( - call, ops_base, static_cast<size_t>(op - ops_base), Tag(1), nullptr); - EXPECT_EQ(GRPC_CALL_OK, error); - CQ_EXPECT_COMPLETION(cqv, Tag(1), 1); - cq_verify(cqv); - EXPECT_EQ(status, GRPC_STATUS_DEADLINE_EXCEEDED); - // Teardown - grpc_slice_unref(details); - gpr_free((void*)error_string); - 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(call); - cq_verifier_destroy(cqv); - EndTest(client, cq); -} - -} // namespace - -int main(int argc, char** argv) { - grpc_test_init(argc, argv); - ::testing::InitGoogleTest(&argc, argv); - gpr_setenv("GRPC_DNS_RESOLVER", "ares"); - // Sanity check the time that it takes to run the test - // including the teardown time (the teardown - // part of the test involves cancelling the DNS query, - // which is the main point of interest for this test). - gpr_timespec overall_deadline = grpc_timeout_seconds_to_deadline(4); - grpc_init(); - auto result = RUN_ALL_TESTS(); - grpc_shutdown(); - if (gpr_time_cmp(gpr_now(GPR_CLOCK_MONOTONIC), overall_deadline) > 0) { - gpr_log(GPR_ERROR, "Test took too long"); - abort(); - } - return result; -} |