diff options
Diffstat (limited to 'test/core/surface/completion_queue_threading_test.cc')
| -rw-r--r-- | test/core/surface/completion_queue_threading_test.cc | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/test/core/surface/completion_queue_threading_test.cc b/test/core/surface/completion_queue_threading_test.cc new file mode 100644 index 0000000000..043c5c1617 --- /dev/null +++ b/test/core/surface/completion_queue_threading_test.cc @@ -0,0 +1,294 @@ +/* + * + * 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/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); + + switch (grpc_get_cq_completion_type(cc)) { + case GRPC_CQ_NEXT: { + ev = grpc_completion_queue_next(cc, gpr_inf_past(GPR_CLOCK_REALTIME), + NULL); + break; + } + case GRPC_CQ_PLUCK: { + ev = grpc_completion_queue_pluck(cc, create_test_tag(), + gpr_inf_past(GPR_CLOCK_REALTIME), NULL); + break; + } + default: { + gpr_log(GPR_ERROR, "Unknown completion type"); + break; + } + } + + GPR_ASSERT(ev.type == GRPC_QUEUE_SHUTDOWN); + grpc_completion_queue_destroy(cc); +} + +static void do_nothing_end_completion(grpc_exec_ctx* exec_ctx, void* arg, + grpc_cq_completion* c) {} + +struct thread_state { + grpc_completion_queue* cc; + void* tag; +}; + +static void pluck_one(void* arg) { + struct thread_state* state = static_cast<struct thread_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_for_pluck(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_milliseconds_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++) { + GPR_ASSERT(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 = static_cast<test_thread_options*>(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++) { + GPR_ASSERT(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, + static_cast<grpc_cq_completion*>( + 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 = static_cast<test_thread_options*>(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, + gpr_inf_future(GPR_CLOCK_MONOTONIC), 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 = static_cast<test_thread_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_for_next(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_too_many_plucks(); + test_threading(1, 1); + test_threading(1, 10); + test_threading(10, 1); + test_threading(10, 10); + grpc_shutdown(); + return 0; +} |