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-rw-r--r--test/cpp/microbenchmarks/bm_cq_multiple_threads.cc53
1 files changed, 26 insertions, 27 deletions
diff --git a/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc b/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc
index 0d267da723..1e3830a556 100644
--- a/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc
+++ b/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc
@@ -1,33 +1,18 @@
/*
*
- * Copyright 2017, Google Inc.
- * All rights reserved.
+ * Copyright 2017 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.
*
*/
@@ -59,7 +44,7 @@ static grpc_event_engine_vtable g_vtable;
static void pollset_shutdown(grpc_exec_ctx* exec_ctx, grpc_pollset* ps,
grpc_closure* closure) {
- grpc_closure_sched(exec_ctx, closure, GRPC_ERROR_NONE);
+ GRPC_CLOSURE_SCHED(exec_ctx, closure, GRPC_ERROR_NONE);
}
static void pollset_init(grpc_pollset* ps, gpr_mu** mu) {
@@ -81,10 +66,16 @@ static void cq_done_cb(grpc_exec_ctx* exec_ctx, void* done_arg,
gpr_free(cq_completion);
}
-/* Queues a completion tag. ZERO polling overhead */
+/* Queues a completion tag if deadline is > 0.
+ * Does nothing if deadline is 0 (i.e gpr_time_0(GPR_CLOCK_MONOTONIC)) */
static grpc_error* pollset_work(grpc_exec_ctx* exec_ctx, grpc_pollset* ps,
grpc_pollset_worker** worker, gpr_timespec now,
gpr_timespec deadline) {
+ if (gpr_time_cmp(deadline, gpr_time_0(GPR_CLOCK_MONOTONIC)) == 0) {
+ gpr_log(GPR_ERROR, "no-op");
+ return GRPC_ERROR_NONE;
+ }
+
gpr_mu_unlock(&ps->mu);
grpc_cq_begin_op(g_cq, g_tag);
grpc_cq_end_op(exec_ctx, g_cq, g_tag, GRPC_ERROR_NONE, cq_done_cb, NULL,
@@ -115,6 +106,14 @@ static void setup() {
static void teardown() {
grpc_completion_queue_shutdown(g_cq);
+
+ /* Drain any events */
+ gpr_timespec deadline = gpr_time_0(GPR_CLOCK_MONOTONIC);
+ while (grpc_completion_queue_next(g_cq, deadline, NULL).type !=
+ GRPC_QUEUE_SHUTDOWN) {
+ /* Do nothing */
+ }
+
grpc_completion_queue_destroy(g_cq);
}