* commit 'c3aa85cbe22a7498f106885ed92435cdb971da0b': Add memory view class for int and uint8_t.
This commit is contained in:
commit
d60bc5759d
4 changed files with 202 additions and 1 deletions
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@ -127,4 +127,5 @@ LATIN_IME_CORE_TEST_FILES := \
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suggest/core/dictionary/bloom_filter_test.cpp \
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suggest/core/dictionary/bloom_filter_test.cpp \
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suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer_test.cpp \
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suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer_test.cpp \
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suggest/policyimpl/dictionary/utils/trie_map_test.cpp \
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suggest/policyimpl/dictionary/utils/trie_map_test.cpp \
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utils/autocorrection_threshold_utils_test.cpp
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utils/autocorrection_threshold_utils_test.cpp \
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utils/int_array_view_test.cpp
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82
native/jni/src/utils/byte_array_view.h
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82
native/jni/src/utils/byte_array_view.h
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/*
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* Copyright (C) 2014 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 LATINIME_BYTE_ARRAY_VIEW_H
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#define LATINIME_BYTE_ARRAY_VIEW_H
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#include <cstdint>
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#include <cstdlib>
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#include "defines.h"
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namespace latinime {
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/**
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* Helper class used to keep track of read accesses for a given memory region.
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*/
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class ReadOnlyByteArrayView {
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public:
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ReadOnlyByteArrayView() : mPtr(nullptr), mSize(0) {}
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ReadOnlyByteArrayView(const uint8_t *const ptr, const size_t size)
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: mPtr(ptr), mSize(size) {}
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AK_FORCE_INLINE size_t size() const {
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return mSize;
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}
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AK_FORCE_INLINE const uint8_t *data() const {
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return mPtr;
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}
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private:
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DISALLOW_ASSIGNMENT_OPERATOR(ReadOnlyByteArrayView);
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const uint8_t *const mPtr;
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const size_t mSize;
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};
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/**
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* Helper class used to keep track of read-write accesses for a given memory region.
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*/
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class ReadWriteByteArrayView {
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public:
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ReadWriteByteArrayView() : mPtr(nullptr), mSize(0) {}
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ReadWriteByteArrayView(uint8_t *const ptr, const size_t size)
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: mPtr(ptr), mSize(size) {}
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AK_FORCE_INLINE size_t size() const {
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return mSize;
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}
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AK_FORCE_INLINE uint8_t *data() const {
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return mPtr;
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}
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AK_FORCE_INLINE ReadOnlyByteArrayView getReadOnlyView() const {
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return ReadOnlyByteArrayView(mPtr, mSize);
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}
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private:
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DISALLOW_ASSIGNMENT_OPERATOR(ReadWriteByteArrayView);
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uint8_t *const mPtr;
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const size_t mSize;
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};
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} // namespace latinime
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#endif // LATINIME_BYTE_ARRAY_VIEW_H
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80
native/jni/src/utils/int_array_view.h
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80
native/jni/src/utils/int_array_view.h
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/*
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* Copyright (C) 2014 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 LATINIME_INT_ARRAY_VIEW_H
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#define LATINIME_INT_ARRAY_VIEW_H
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#include <cstdint>
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#include <cstdlib>
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#include <vector>
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#include "defines.h"
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namespace latinime {
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/**
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* Helper class used to provide a read-only view of a given range of integer array. This class
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* does not take ownership of the underlying integer array but is designed to be a lightweight
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* object that obeys value semantics.
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*
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* Example:
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* <code>
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* bool constinsX(IntArrayView view) {
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* for (size_t i = 0; i < view.size(); ++i) {
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* if (view[i] == 'X') {
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* return true;
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* }
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* }
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* return false;
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* }
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*
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* const int codePointArray[] = { 'A', 'B', 'X', 'Z' };
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* auto view = IntArrayView(codePointArray, NELEMS(codePointArray));
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* const bool hasX = constinsX(view);
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* </code>
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*/
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class IntArrayView {
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public:
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IntArrayView() : mPtr(nullptr), mSize(0) {}
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IntArrayView(const int *const ptr, const size_t size)
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: mPtr(ptr), mSize(size) {}
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explicit IntArrayView(const std::vector<int> &vector)
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: mPtr(vector.data()), mSize(vector.size()) {}
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AK_FORCE_INLINE int operator[](const size_t index) const {
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ASSERT(index < mSize);
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return mPtr[index];
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}
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AK_FORCE_INLINE size_t size() const {
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return mSize;
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}
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AK_FORCE_INLINE const int *data() const {
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return mPtr;
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}
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private:
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DISALLOW_ASSIGNMENT_OPERATOR(IntArrayView);
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const int *const mPtr;
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const size_t mSize;
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};
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} // namespace latinime
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#endif // LATINIME_MEMORY_VIEW_H
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38
native/jni/tests/utils/int_array_view_test.cpp
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38
native/jni/tests/utils/int_array_view_test.cpp
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/*
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* Copyright (C) 2014 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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#include "utils/int_array_view.h"
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#include <gtest/gtest.h>
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#include <vector>
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namespace latinime {
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namespace {
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TEST(MemoryViewTest, TestAccess) {
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static const int DATA_SIZE = 10000;
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std::vector<int> intVector = {3, 2, 1, 0, -1, -2};
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IntArrayView intArrayView(intVector);
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EXPECT_EQ(intVector.size(), intArrayView.size());
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for (int i = 0; i < DATA_SIZE; ++i) {
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EXPECT_EQ(intVector[i], intArrayView[i]);
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}
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}
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} // namespace
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} // namespace latinime
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