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84 lines
3.1 KiB
84 lines
3.1 KiB
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_PACKAGES_MODULES_NEURALNETWORKS_RUNTIME_TEST_SUPPORT_LIBRARY_TEST_UTILS_H
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#define ANDROID_PACKAGES_MODULES_NEURALNETWORKS_RUNTIME_TEST_SUPPORT_LIBRARY_TEST_UTILS_H
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#include <android-base/mapped_file.h>
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#include <android-base/unique_fd.h>
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#include <android/sharedmem.h>
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#include <memory>
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#include <utility>
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#include "SupportLibraryWrapper.h"
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namespace android::nn {
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// Convenience class to manage the file, mapping, and memory object.
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class TestAshmem {
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public:
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TestAshmem(::android::base::unique_fd fd, std::unique_ptr<::android::base::MappedFile> mapped,
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sl_wrapper::Memory memory)
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: mFd(std::move(fd)), mMapped(std::move(mapped)), mMemory(std::move(memory)) {}
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// Factory function for TestAshmem; prefer this over the raw constructor
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static std::unique_ptr<TestAshmem> createFrom(const NnApiSupportLibrary* nnapi,
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const test_helper::TestBuffer& buffer) {
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return createFrom(nnapi, buffer.get<void>(), buffer.size());
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}
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// Factory function for TestAshmem; prefer this over the raw constructor
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static std::unique_ptr<TestAshmem> createFrom(const NnApiSupportLibrary* nnapi,
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const void* data, uint32_t length) {
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// Create ashmem-based fd.
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int fd = ASharedMemory_create(nullptr, length);
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if (fd <= 0) return nullptr;
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::android::base::unique_fd managedFd(fd);
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// Map and populate ashmem.
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auto mappedFile =
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::android::base::MappedFile::FromFd(fd, 0, length, PROT_READ | PROT_WRITE);
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if (!mappedFile) return nullptr;
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memcpy(mappedFile->data(), data, length);
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// Create NNAPI memory object.
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sl_wrapper::Memory memory(nnapi, length, PROT_READ | PROT_WRITE, fd, 0);
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if (!memory.isValid()) return nullptr;
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// Store everything in managing class.
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return std::make_unique<TestAshmem>(std::move(managedFd), std::move(mappedFile),
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std::move(memory));
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}
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size_t size() { return mMapped->size(); }
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sl_wrapper::Memory* get() { return &mMemory; }
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template <typename Type>
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Type* dataAs() {
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return static_cast<Type*>(static_cast<void*>(mMapped->data()));
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}
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private:
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::android::base::unique_fd mFd;
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std::unique_ptr<::android::base::MappedFile> mMapped;
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sl_wrapper::Memory mMemory;
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};
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} // namespace android::nn
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#endif // ANDROID_PACKAGES_MODULES_NEURALNETWORKS_RUNTIME_TEST_SUPPORT_LIBRARY_TEST_UTILS_H
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