Description:low latency

Match-id-d71f0036ecf2ee584e4100319a50844ee715d81b

utils/include/dinput_low_latency_utils.h

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+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * 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.
+ */
+
+#ifndef DINPUT_LOW_LATENCY_UTILS_H
+#define DINPUT_LOW_LATENCY_UTILS_H
+
+#include <cstring>
+#include <mutex>
+
+#include "single_instance.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+namespace DistributedInput {
+class DInputLowLatencyUtils {
+DECLARE_SINGLE_INSTANCE_BASE(DInputLowLatencyUtils);
+public:
+    void EnableSourceLowLatency();
+    void DisableSourceLowLatency();
+    void EnableSinkLowLatency();
+    void DisableSinkLowLatency();
+private:
+    DInputLowLatencyUtils() = default;
+    ~DInputLowLatencyUtils();
+    int32_t LoadLibrary();
+    void CloseLibrary();
+
+private:
+    void *handler_ { nullptr };
+    std::mutex mutex_;
+};
+}  // namespace DistributedInput
+}  // namespace DistributedHardware
+}  // namespace OHOS
+
+#endif  // DINPUT_LOW_LATENCY_UTILS_H