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-rw-r--r--test/core/end2end/tests/thread_stress_test.c325
1 files changed, 325 insertions, 0 deletions
diff --git a/test/core/end2end/tests/thread_stress_test.c b/test/core/end2end/tests/thread_stress_test.c
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+++ b/test/core/end2end/tests/thread_stress_test.c
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+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "test/core/end2end/end2end_tests.h"
+
+#include <string.h>
+
+#include "src/core/surface/event_string.h"
+#include "src/core/surface/completion_queue.h"
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/time.h>
+#include <grpc/support/thd.h>
+
+#define SERVER_THREADS 16
+#define CLIENT_THREADS 16
+
+static grpc_end2end_test_fixture g_fixture;
+static gpr_timespec g_test_end_time;
+static gpr_event g_client_done[CLIENT_THREADS];
+static gpr_event g_server_done[SERVER_THREADS];
+static gpr_mu g_mu;
+static int g_active_requests;
+
+static gpr_timespec n_seconds_time(int n) {
+ return gpr_time_add(gpr_now(), gpr_time_from_micros(GPR_US_PER_SEC * n));
+}
+
+static gpr_timespec five_seconds_time() { return n_seconds_time(5); }
+
+/* Drain pending events on a completion queue until it's ready to destroy.
+ Does some post-processing to safely release memory on some of the events. */
+static void drain_cq(int client, grpc_completion_queue *cq) {
+ grpc_event *ev;
+ grpc_completion_type type;
+ char *evstr;
+ int done = 0;
+ char *name = client ? "client" : "server";
+ while (!done) {
+ ev = grpc_completion_queue_next(cq, five_seconds_time());
+ if (!ev) {
+ gpr_log(GPR_ERROR, "waiting for %s cq to drain", name);
+ grpc_cq_dump_pending_ops(cq);
+ continue;
+ }
+
+ evstr = grpc_event_string(ev);
+ gpr_log(GPR_INFO, "got late %s event: %s", name, evstr);
+ gpr_free(evstr);
+
+ type = ev->type;
+ switch (type) {
+ case GRPC_SERVER_RPC_NEW:
+ gpr_free(ev->tag);
+ if (ev->call) {
+ grpc_call_destroy(ev->call);
+ }
+ break;
+ case GRPC_FINISHED:
+ grpc_call_destroy(ev->call);
+ break;
+ case GRPC_QUEUE_SHUTDOWN:
+ done = 1;
+ break;
+ case GRPC_READ:
+ case GRPC_WRITE_ACCEPTED:
+ if (!client && gpr_unref(ev->tag)) {
+ gpr_free(ev->tag);
+ }
+ default:
+ break;
+ }
+ grpc_event_finish(ev);
+ }
+}
+
+/* Kick off a new request - assumes g_mu taken */
+static void start_request() {
+ grpc_call *call = grpc_channel_create_call(
+ g_fixture.client, "/Foo", "test.google.com", g_test_end_time);
+ g_active_requests++;
+ GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_invoke(call, g_fixture.client_cq,
+ NULL, NULL, NULL, 0));
+}
+
+/* Async client: handle sending requests, reading responses, and starting
+ new requests when old ones finish */
+static void client_thread(void *p) {
+ int id = (gpr_intptr)p;
+ grpc_event *ev;
+ gpr_slice slice = gpr_slice_malloc(100);
+ grpc_byte_buffer *buf;
+ char *estr;
+ memset(GPR_SLICE_START_PTR(slice), id, GPR_SLICE_LENGTH(slice));
+
+ buf = grpc_byte_buffer_create(&slice, 1);
+ gpr_slice_unref(slice);
+
+ for (;;) {
+ ev = grpc_completion_queue_next(g_fixture.client_cq, n_seconds_time(1));
+ if (ev) {
+ switch (ev->type) {
+ default:
+ estr = grpc_event_string(ev);
+ gpr_log(GPR_ERROR, "unexpected event: %s", estr);
+ gpr_free(estr);
+ break;
+ case GRPC_INVOKE_ACCEPTED:
+ /* better not keep going if the invoke failed */
+ if (ev->data.invoke_accepted == GRPC_OP_OK) {
+ GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_read(ev->call, NULL));
+ GPR_ASSERT(GRPC_CALL_OK ==
+ grpc_call_start_write(ev->call, buf, NULL, 0));
+ }
+ break;
+ case GRPC_READ:
+ break;
+ case GRPC_WRITE_ACCEPTED:
+ GPR_ASSERT(GRPC_CALL_OK == grpc_call_writes_done(ev->call, NULL));
+ break;
+ case GRPC_FINISH_ACCEPTED:
+ break;
+ case GRPC_CLIENT_METADATA_READ:
+ break;
+ case GRPC_FINISHED:
+ /* kick off a new request if the test should still be running */
+ gpr_mu_lock(&g_mu);
+ g_active_requests--;
+ if (gpr_time_cmp(gpr_now(), g_test_end_time) < 0) {
+ start_request();
+ }
+ gpr_mu_unlock(&g_mu);
+ grpc_call_destroy(ev->call);
+ break;
+ }
+ grpc_event_finish(ev);
+ }
+ gpr_mu_lock(&g_mu);
+ if (g_active_requests == 0) {
+ gpr_mu_unlock(&g_mu);
+ break;
+ }
+ gpr_mu_unlock(&g_mu);
+ }
+
+ grpc_byte_buffer_destroy(buf);
+ gpr_event_set(&g_client_done[id], (void *)1);
+}
+
+/* Request a new server call. We tag them with a ref-count that starts at two,
+ and decrements after each of: a read completes and a write completes.
+ When it drops to zero, we write status */
+static void request_server_call() {
+ gpr_refcount *rc = gpr_malloc(sizeof(gpr_refcount));
+ gpr_ref_init(rc, 2);
+ grpc_server_request_call(g_fixture.server, rc);
+}
+
+static void maybe_end_server_call(grpc_call *call, gpr_refcount *rc) {
+ grpc_status ok_status = {GRPC_STATUS_OK, NULL};
+ if (gpr_unref(rc)) {
+ GPR_ASSERT(GRPC_CALL_OK ==
+ grpc_call_start_write_status(call, ok_status, NULL));
+ gpr_free(rc);
+ }
+}
+
+static void server_thread(void *p) {
+ int id = (gpr_intptr)p;
+ grpc_event *ev;
+ gpr_slice slice = gpr_slice_malloc(100);
+ grpc_byte_buffer *buf;
+ char *estr;
+ memset(GPR_SLICE_START_PTR(slice), id, GPR_SLICE_LENGTH(slice));
+
+ request_server_call();
+
+ buf = grpc_byte_buffer_create(&slice, 1);
+ gpr_slice_unref(slice);
+
+ for (;;) {
+ ev = grpc_completion_queue_next(g_fixture.server_cq, n_seconds_time(1));
+ if (ev) {
+ switch (ev->type) {
+ default:
+ estr = grpc_event_string(ev);
+ gpr_log(GPR_ERROR, "unexpected event: %s", estr);
+ gpr_free(estr);
+ break;
+ case GRPC_SERVER_RPC_NEW:
+ if (ev->call) {
+ GPR_ASSERT(GRPC_CALL_OK == grpc_call_accept(ev->call,
+ g_fixture.server_cq,
+ ev->tag, 0));
+ GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_read(ev->call, ev->tag));
+ GPR_ASSERT(GRPC_CALL_OK ==
+ grpc_call_start_write(ev->call, buf, ev->tag, 0));
+ } else {
+ gpr_free(ev->tag);
+ }
+ break;
+ case GRPC_READ:
+ if (ev->data.read) {
+ GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_read(ev->call, ev->tag));
+ } else {
+ maybe_end_server_call(ev->call, ev->tag);
+ }
+ break;
+ case GRPC_WRITE_ACCEPTED:
+ maybe_end_server_call(ev->call, ev->tag);
+ break;
+ case GRPC_FINISH_ACCEPTED:
+ break;
+ case GRPC_FINISHED:
+ grpc_call_destroy(ev->call);
+ request_server_call();
+ break;
+ }
+ grpc_event_finish(ev);
+ }
+ gpr_mu_lock(&g_mu);
+ if (g_active_requests == 0) {
+ gpr_mu_unlock(&g_mu);
+ break;
+ }
+ gpr_mu_unlock(&g_mu);
+ }
+
+ grpc_byte_buffer_destroy(buf);
+ gpr_event_set(&g_server_done[id], (void *)1);
+}
+
+static void run_test(grpc_end2end_test_config config, int requests_in_flight) {
+ int i;
+ gpr_thd_id thd_id;
+
+ gpr_log(GPR_INFO, "thread_test/%s @ %d requests", config.name,
+ requests_in_flight);
+
+ /* setup client, server */
+ g_fixture = config.create_fixture(NULL, NULL);
+ config.init_client(&g_fixture, NULL);
+ config.init_server(&g_fixture, NULL);
+
+ /* schedule end time */
+ g_test_end_time = n_seconds_time(5);
+
+ g_active_requests = 0;
+ gpr_mu_init(&g_mu);
+
+ /* kick off threads */
+ for (i = 0; i < CLIENT_THREADS; i++) {
+ gpr_event_init(&g_client_done[i]);
+ gpr_thd_new(&thd_id, client_thread, (void *)(gpr_intptr)i, NULL);
+ }
+ for (i = 0; i < SERVER_THREADS; i++) {
+ gpr_event_init(&g_server_done[i]);
+ gpr_thd_new(&thd_id, server_thread, (void *)(gpr_intptr)i, NULL);
+ }
+
+ /* start requests */
+ gpr_mu_lock(&g_mu);
+ for (i = 0; i < requests_in_flight; i++) {
+ start_request();
+ }
+ gpr_mu_unlock(&g_mu);
+
+ /* await completion */
+ for (i = 0; i < CLIENT_THREADS; i++) {
+ gpr_event_wait(&g_client_done[i], gpr_inf_future);
+ }
+ for (i = 0; i < SERVER_THREADS; i++) {
+ gpr_event_wait(&g_server_done[i], gpr_inf_future);
+ }
+
+ /* shutdown the things */
+ grpc_server_shutdown(g_fixture.server);
+ grpc_server_destroy(g_fixture.server);
+ grpc_channel_destroy(g_fixture.client);
+
+ grpc_completion_queue_shutdown(g_fixture.server_cq);
+ drain_cq(0, g_fixture.server_cq);
+ grpc_completion_queue_destroy(g_fixture.server_cq);
+ grpc_completion_queue_shutdown(g_fixture.client_cq);
+ drain_cq(1, g_fixture.client_cq);
+ grpc_completion_queue_destroy(g_fixture.client_cq);
+
+ config.tear_down_data(&g_fixture);
+
+ gpr_mu_destroy(&g_mu);
+}
+
+void grpc_end2end_tests(grpc_end2end_test_config config) {
+ run_test(config, 1000);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-04 10:19:09 +0000