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Diffstat (limited to 'native/jni/src/utils/byte_array_view.h')
-rw-r--r-- | native/jni/src/utils/byte_array_view.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/native/jni/src/utils/byte_array_view.h b/native/jni/src/utils/byte_array_view.h new file mode 100644 index 000000000..d13999c16 --- /dev/null +++ b/native/jni/src/utils/byte_array_view.h @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2014 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 LATINIME_BYTE_ARRAY_VIEW_H +#define LATINIME_BYTE_ARRAY_VIEW_H + +#include <cstdint> +#include <cstdlib> + +#include "defines.h" + +namespace latinime { + +/** + * Helper class used to keep track of read accesses for a given memory region. + */ +class ReadOnlyByteArrayView { + public: + ReadOnlyByteArrayView() : mPtr(nullptr), mSize(0) {} + + ReadOnlyByteArrayView(const uint8_t *const ptr, const size_t size) + : mPtr(ptr), mSize(size) {} + + AK_FORCE_INLINE size_t size() const { + return mSize; + } + + AK_FORCE_INLINE const uint8_t *data() const { + return mPtr; + } + + private: + DISALLOW_ASSIGNMENT_OPERATOR(ReadOnlyByteArrayView); + + const uint8_t *const mPtr; + const size_t mSize; +}; + +/** + * Helper class used to keep track of read-write accesses for a given memory region. + */ +class ReadWriteByteArrayView { + public: + ReadWriteByteArrayView() : mPtr(nullptr), mSize(0) {} + + ReadWriteByteArrayView(uint8_t *const ptr, const size_t size) + : mPtr(ptr), mSize(size) {} + + AK_FORCE_INLINE size_t size() const { + return mSize; + } + + AK_FORCE_INLINE uint8_t *data() const { + return mPtr; + } + + AK_FORCE_INLINE ReadOnlyByteArrayView getReadOnlyView() const { + return ReadOnlyByteArrayView(mPtr, mSize); + } + + private: + DISALLOW_ASSIGNMENT_OPERATOR(ReadWriteByteArrayView); + + uint8_t *const mPtr; + const size_t mSize; +}; + +} // namespace latinime +#endif // LATINIME_BYTE_ARRAY_VIEW_H |