Add canonical types adapters for NNAPI AIDL interface
Also:
* Add missing AIDL<->CT conversions
* Add AIDL-specific info to neuralnetworks/utils/README.md
* Add mock classes and tests AIDL adapters
Bug: 179015258
Test: neuralnetworks_utils_hal_test
Change-Id: Ifa98fadd46dca5dbf9b3ceb4da811aa8da45b6e4
Merged-In: Ifa98fadd46dca5dbf9b3ceb4da811aa8da45b6e4
(cherry picked from commit 3b93b0b56a4f5128eaa942d804dd490317c0abcb)
diff --git a/neuralnetworks/aidl/utils/src/Callbacks.cpp b/neuralnetworks/aidl/utils/src/Callbacks.cpp
new file mode 100644
index 0000000..8055665
--- /dev/null
+++ b/neuralnetworks/aidl/utils/src/Callbacks.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#include "Callbacks.h"
+
+#include "Conversions.h"
+#include "PreparedModel.h"
+#include "ProtectCallback.h"
+#include "Utils.h"
+
+#include <nnapi/IPreparedModel.h>
+#include <nnapi/Result.h>
+#include <nnapi/Types.h>
+
+#include <utility>
+
+// See hardware/interfaces/neuralnetworks/utils/README.md for more information on AIDL interface
+// lifetimes across processes and for protecting asynchronous calls across AIDL.
+
+namespace aidl::android::hardware::neuralnetworks::utils {
+namespace {
+
+// Converts the results of IDevice::prepareModel* to the NN canonical format. On success, this
+// function returns with a non-null nn::SharedPreparedModel with a feature level of
+// nn::Version::ANDROID_S. On failure, this function returns with the appropriate nn::GeneralError.
+nn::GeneralResult<nn::SharedPreparedModel> prepareModelCallback(
+ ErrorStatus status, const std::shared_ptr<IPreparedModel>& preparedModel) {
+ HANDLE_HAL_STATUS(status) << "model preparation failed with " << toString(status);
+ return NN_TRY(PreparedModel::create(preparedModel));
+}
+
+} // namespace
+
+ndk::ScopedAStatus PreparedModelCallback::notify(
+ ErrorStatus status, const std::shared_ptr<IPreparedModel>& preparedModel) {
+ mData.put(prepareModelCallback(status, preparedModel));
+ return ndk::ScopedAStatus::ok();
+}
+
+void PreparedModelCallback::notifyAsDeadObject() {
+ mData.put(NN_ERROR(nn::ErrorStatus::DEAD_OBJECT) << "Dead object");
+}
+
+PreparedModelCallback::Data PreparedModelCallback::get() {
+ return mData.take();
+}
+
+} // namespace aidl::android::hardware::neuralnetworks::utils