upload android base code part3
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android/art/test/ti-agent/scoped_primitive_array.h
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android/art/test/ti-agent/scoped_primitive_array.h
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/*
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* Copyright (C) 2010 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 ART_TEST_TI_AGENT_SCOPED_PRIMITIVE_ARRAY_H_
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#define ART_TEST_TI_AGENT_SCOPED_PRIMITIVE_ARRAY_H_
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#include "jni.h"
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#include "android-base/macros.h"
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#include "jni_helper.h"
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namespace art {
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#ifdef POINTER_TYPE
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#error POINTER_TYPE is defined.
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#else
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#define POINTER_TYPE(T) T* /* NOLINT */
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#endif
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#ifdef REFERENCE_TYPE
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#error REFERENCE_TYPE is defined.
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#else
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#define REFERENCE_TYPE(T) T& /* NOLINT */
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#endif
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// ScopedBooleanArrayRO, ScopedByteArrayRO, ScopedCharArrayRO, ScopedDoubleArrayRO,
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// ScopedFloatArrayRO, ScopedIntArrayRO, ScopedLongArrayRO, and ScopedShortArrayRO provide
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// convenient read-only access to Java arrays from JNI code. This is cheaper than read-write
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// access and should be used by default.
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#define INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RO(PRIMITIVE_TYPE, NAME) \
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class Scoped ## NAME ## ArrayRO { \
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public: \
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explicit Scoped ## NAME ## ArrayRO(JNIEnv* env) \
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: mEnv(env), mJavaArray(nullptr), mRawArray(nullptr), mSize(0) {} \
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Scoped ## NAME ## ArrayRO(JNIEnv* env, PRIMITIVE_TYPE ## Array javaArray) \
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: mEnv(env) { \
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if (javaArray == nullptr) { \
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mJavaArray = nullptr; \
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mSize = 0; \
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mRawArray = nullptr; \
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JniThrowNullPointerException(env, nullptr); \
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} else { \
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reset(javaArray); \
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} \
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} \
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~Scoped ## NAME ## ArrayRO() { \
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if (mRawArray != nullptr && mRawArray != mBuffer) { \
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mEnv->Release ## NAME ## ArrayElements(mJavaArray, mRawArray, JNI_ABORT); \
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} \
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} \
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void reset(PRIMITIVE_TYPE ## Array javaArray) { \
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mJavaArray = javaArray; \
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mSize = mEnv->GetArrayLength(mJavaArray); \
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if (mSize <= kBufferSize) { \
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mEnv->Get ## NAME ## ArrayRegion(mJavaArray, 0, mSize, mBuffer); \
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mRawArray = mBuffer; \
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} else { \
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mRawArray = mEnv->Get ## NAME ## ArrayElements(mJavaArray, nullptr); \
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} \
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} \
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const PRIMITIVE_TYPE* get() const { return mRawArray; } \
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PRIMITIVE_TYPE ## Array getJavaArray() const { return mJavaArray; } \
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const PRIMITIVE_TYPE& operator[](size_t n) const { return mRawArray[n]; } \
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size_t size() const { return mSize; } \
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private: \
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static constexpr jsize kBufferSize = 1024; \
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JNIEnv* const mEnv; \
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PRIMITIVE_TYPE ## Array mJavaArray; \
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POINTER_TYPE(PRIMITIVE_TYPE) mRawArray; \
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jsize mSize; \
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PRIMITIVE_TYPE mBuffer[kBufferSize]; \
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DISALLOW_COPY_AND_ASSIGN(Scoped ## NAME ## ArrayRO); \
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}
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RO(jboolean, Boolean);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RO(jbyte, Byte);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RO(jchar, Char);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RO(jdouble, Double);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RO(jfloat, Float);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RO(jint, Int);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RO(jlong, Long);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RO(jshort, Short);
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#undef INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RO
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// ScopedBooleanArrayRW, ScopedByteArrayRW, ScopedCharArrayRW, ScopedDoubleArrayRW,
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// ScopedFloatArrayRW, ScopedIntArrayRW, ScopedLongArrayRW, and ScopedShortArrayRW provide
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// convenient read-write access to Java arrays from JNI code. These are more expensive,
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// since they entail a copy back onto the Java heap, and should only be used when necessary.
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#define INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RW(PRIMITIVE_TYPE, NAME) \
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class Scoped ## NAME ## ArrayRW { \
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public: \
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explicit Scoped ## NAME ## ArrayRW(JNIEnv* env) \
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: mEnv(env), mJavaArray(nullptr), mRawArray(nullptr) {} \
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Scoped ## NAME ## ArrayRW(JNIEnv* env, PRIMITIVE_TYPE ## Array javaArray) \
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: mEnv(env), mJavaArray(javaArray), mRawArray(nullptr) { \
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if (mJavaArray == nullptr) { \
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JniThrowNullPointerException(env, nullptr); \
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} else { \
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mRawArray = mEnv->Get ## NAME ## ArrayElements(mJavaArray, nullptr); \
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} \
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} \
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~Scoped ## NAME ## ArrayRW() { \
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if (mRawArray) { \
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mEnv->Release ## NAME ## ArrayElements(mJavaArray, mRawArray, 0); \
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} \
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} \
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void reset(PRIMITIVE_TYPE ## Array javaArray) { \
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mJavaArray = javaArray; \
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mRawArray = mEnv->Get ## NAME ## ArrayElements(mJavaArray, nullptr); \
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} \
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const PRIMITIVE_TYPE* get() const { return mRawArray; } \
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PRIMITIVE_TYPE ## Array getJavaArray() const { return mJavaArray; } \
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const PRIMITIVE_TYPE& operator[](size_t n) const { return mRawArray[n]; } \
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POINTER_TYPE(PRIMITIVE_TYPE) get() { return mRawArray; } \
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REFERENCE_TYPE(PRIMITIVE_TYPE) operator[](size_t n) { return mRawArray[n]; } \
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size_t size() const { return mEnv->GetArrayLength(mJavaArray); } \
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private: \
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JNIEnv* const mEnv; \
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PRIMITIVE_TYPE ## Array mJavaArray; \
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POINTER_TYPE(PRIMITIVE_TYPE) mRawArray; \
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DISALLOW_COPY_AND_ASSIGN(Scoped ## NAME ## ArrayRW); \
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}
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RW(jboolean, Boolean);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RW(jbyte, Byte);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RW(jchar, Char);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RW(jdouble, Double);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RW(jfloat, Float);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RW(jint, Int);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RW(jlong, Long);
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INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RW(jshort, Short);
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#undef INSTANTIATE_SCOPED_PRIMITIVE_ARRAY_RW
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#undef POINTER_TYPE
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#undef REFERENCE_TYPE
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} // namespace art
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#endif // ART_TEST_TI_AGENT_SCOPED_PRIMITIVE_ARRAY_H_
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