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-rw-r--r--test/core/surface/concurrent_connectivity_test.c106
1 files changed, 78 insertions, 28 deletions
diff --git a/test/core/surface/concurrent_connectivity_test.c b/test/core/surface/concurrent_connectivity_test.c
index 87ad095170..08079b6091 100644
--- a/test/core/surface/concurrent_connectivity_test.c
+++ b/test/core/surface/concurrent_connectivity_test.c
@@ -1,33 +1,18 @@
/*
*
- * Copyright 2016, Google Inc.
- * All rights reserved.
+ * Copyright 2016 gRPC authors.
*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
+ * 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
*
- * * 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.
+ * http://www.apache.org/licenses/LICENSE-2.0
*
- * 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.
+ * 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.
*
*/
@@ -61,6 +46,14 @@
#define DELAY_MILLIS 10
#define POLL_MILLIS 3000
+#define NUM_OUTER_LOOPS_SHORT_TIMEOUTS 10
+#define NUM_INNER_LOOPS_SHORT_TIMEOUTS 100
+#define DELAY_MILLIS_SHORT_TIMEOUTS 1
+// in a successful test run, POLL_MILLIS should never be reached beause all runs
+// should
+// end after the shorter delay_millis
+#define POLL_MILLIS_SHORT_TIMEOUTS 30000
+
static void *tag(int n) { return (void *)(uintptr_t)n; }
static int detag(void *p) { return (int)(uintptr_t)p; }
@@ -79,6 +72,8 @@ void create_loop_destroy(void *addr) {
grpc_timeout_milliseconds_to_deadline(POLL_MILLIS);
GPR_ASSERT(grpc_completion_queue_next(cq, poll_time, NULL).type ==
GRPC_OP_COMPLETE);
+ /* check that the watcher from "watch state" was free'd */
+ GPR_ASSERT(grpc_channel_num_external_connectivity_watchers(chan) == 0);
}
grpc_channel_destroy(chan);
grpc_completion_queue_destroy(cq);
@@ -168,11 +163,10 @@ static void done_pollset_shutdown(grpc_exec_ctx *exec_ctx, void *pollset,
gpr_free(pollset);
}
-int main(int argc, char **argv) {
+int run_concurrent_connectivity_test() {
struct server_thread_args args;
memset(&args, 0, sizeof(args));
- grpc_test_init(argc, argv);
grpc_init();
gpr_thd_id threads[NUM_THREADS];
@@ -235,10 +229,66 @@ int main(int argc, char **argv) {
gpr_thd_join(server);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_pollset_shutdown(&exec_ctx, args.pollset,
- grpc_closure_create(done_pollset_shutdown, args.pollset,
+ GRPC_CLOSURE_CREATE(done_pollset_shutdown, args.pollset,
grpc_schedule_on_exec_ctx));
grpc_exec_ctx_finish(&exec_ctx);
grpc_shutdown();
return 0;
}
+
+void watches_with_short_timeouts(void *addr) {
+ for (int i = 0; i < NUM_OUTER_LOOPS_SHORT_TIMEOUTS; ++i) {
+ grpc_completion_queue *cq = grpc_completion_queue_create_for_next(NULL);
+ grpc_channel *chan = grpc_insecure_channel_create((char *)addr, NULL, NULL);
+
+ for (int j = 0; j < NUM_INNER_LOOPS_SHORT_TIMEOUTS; ++j) {
+ gpr_timespec later_time =
+ grpc_timeout_milliseconds_to_deadline(DELAY_MILLIS_SHORT_TIMEOUTS);
+ grpc_connectivity_state state =
+ grpc_channel_check_connectivity_state(chan, 0);
+ GPR_ASSERT(state == GRPC_CHANNEL_IDLE);
+ grpc_channel_watch_connectivity_state(chan, state, later_time, cq, NULL);
+ gpr_timespec poll_time =
+ grpc_timeout_milliseconds_to_deadline(POLL_MILLIS_SHORT_TIMEOUTS);
+ grpc_event ev = grpc_completion_queue_next(cq, poll_time, NULL);
+ GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
+ GPR_ASSERT(ev.success == false);
+ /* check that the watcher from "watch state" was free'd */
+ GPR_ASSERT(grpc_channel_num_external_connectivity_watchers(chan) == 0);
+ }
+ grpc_channel_destroy(chan);
+ grpc_completion_queue_destroy(cq);
+ }
+}
+
+// This test tries to catch deadlock situations.
+// With short timeouts on "watches" and long timeouts on cq next calls,
+// so that a QUEUE_TIMEOUT likely means that something is stuck.
+int run_concurrent_watches_with_short_timeouts_test() {
+ grpc_init();
+
+ gpr_thd_id threads[NUM_THREADS];
+
+ char *localhost = gpr_strdup("localhost:54321");
+ gpr_thd_options options = gpr_thd_options_default();
+ gpr_thd_options_set_joinable(&options);
+
+ for (size_t i = 0; i < NUM_THREADS; ++i) {
+ gpr_thd_new(&threads[i], watches_with_short_timeouts, localhost, &options);
+ }
+ for (size_t i = 0; i < NUM_THREADS; ++i) {
+ gpr_thd_join(threads[i]);
+ }
+ gpr_free(localhost);
+
+ grpc_shutdown();
+ return 0;
+}
+
+int main(int argc, char **argv) {
+ grpc_test_init(argc, argv);
+
+ run_concurrent_connectivity_test();
+ run_concurrent_watches_with_short_timeouts_test();
+}