1 files changed, 38 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/task_queue/default_task_queue_factory_stdlib_or_libevent_experiment.cc b/third_party/libwebrtc/api/task_queue/default_task_queue_factory_stdlib_or_libevent_experiment.cc
new file mode 100644
index 0000000000..dc6e835907
--- /dev/null
+++ b/third_party/libwebrtc/api/task_queue/default_task_queue_factory_stdlib_or_libevent_experiment.cc
@@ -0,0 +1,38 @@
+/*
+ *  Copyright 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <memory>
+
+#include "api/field_trials_view.h"
+#include "api/task_queue/task_queue_factory.h"
+#include "api/transport/field_trial_based_config.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/memory/always_valid_pointer.h"
+#include "rtc_base/task_queue_libevent.h"
+#include "rtc_base/task_queue_stdlib.h"
+
+namespace webrtc {
+
+std::unique_ptr<TaskQueueFactory> CreateDefaultTaskQueueFactory(
+    const FieldTrialsView* field_trials_view) {
+  AlwaysValidPointer<const FieldTrialsView, FieldTrialBasedConfig> field_trials(
+      field_trials_view);
+  if (field_trials->IsEnabled("WebRTC-TaskQueue-ReplaceLibeventWithStdlib")) {
+    RTC_LOG(LS_INFO) << "WebRTC-TaskQueue-ReplaceLibeventWithStdlib: "
+                     << "using TaskQueueStdlibFactory.";
+    return CreateTaskQueueStdlibFactory();
+  }
+
+  RTC_LOG(LS_INFO) << "WebRTC-TaskQueue-ReplaceLibeventWithStdlib: "
+                   << "using TaskQueueLibeventFactory.";
+  return CreateTaskQueueLibeventFactory();
+}
+
+}  // namespace webrtc