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/*
* Copyright (C) 2020 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.
*/
#ifndef ANDROID_FRAMEWORKS_ML_NN_RUNTIME_TEST_TEST_UTILS_H
#define ANDROID_FRAMEWORKS_ML_NN_RUNTIME_TEST_TEST_UTILS_H
#include <android-base/mapped_file.h>
#include <android-base/unique_fd.h>
#include <android/sharedmem.h>
#include <memory>
#include <utility>
#include "TestHarness.h"
#include "TestNeuralNetworksWrapper.h"
namespace android::nn {
// Convenience class to manage the file, mapping, and memory object.
class TestAshmem {
public:
TestAshmem(::android::base::unique_fd fd, std::unique_ptr<::android::base::MappedFile> mapped,
test_wrapper::Memory memory)
: mFd(std::move(fd)), mMapped(std::move(mapped)), mMemory(std::move(memory)) {}
// Factory function for TestAshmem; prefer this over the raw constructor
static std::unique_ptr<TestAshmem> createFrom(const test_helper::TestBuffer& buffer) {
return createFrom(buffer.get<void>(), buffer.size());
}
// Factory function for TestAshmem; prefer this over the raw constructor
static std::unique_ptr<TestAshmem> createFrom(const void* data, uint32_t length) {
// Create ashmem-based fd.
int fd = ASharedMemory_create(nullptr, length);
if (fd <= 0) return nullptr;
::android::base::unique_fd managedFd(fd);
// Map and populate ashmem.
auto mappedFile =
::android::base::MappedFile::FromFd(fd, 0, length, PROT_READ | PROT_WRITE);
if (!mappedFile) return nullptr;
memcpy(mappedFile->data(), data, length);
// Create NNAPI memory object.
test_wrapper::Memory memory(length, PROT_READ | PROT_WRITE, fd, 0);
if (!memory.isValid()) return nullptr;
// Store everything in managing class.
return std::make_unique<TestAshmem>(std::move(managedFd), std::move(mappedFile),
std::move(memory));
}
size_t size() { return mMapped->size(); }
test_wrapper::Memory* get() { return &mMemory; }
template <typename Type>
Type* dataAs() {
return static_cast<Type*>(static_cast<void*>(mMapped->data()));
}
private:
::android::base::unique_fd mFd;
std::unique_ptr<::android::base::MappedFile> mMapped;
test_wrapper::Memory mMemory;
};
} // namespace android::nn
#endif // ANDROID_FRAMEWORKS_ML_NN_RUNTIME_TEST_TEST_UTILS_H
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