/*
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* Copyright 2018 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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#pragma once
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#include "jni.h"
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struct JniConstants {
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// Global reference to java.io.FileDescriptor.
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static jclass GetFileDescriptorClass(JNIEnv* env);
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// java.io.FileDescriptor.descriptor.
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static jfieldID GetFileDescriptorDescriptorField(JNIEnv* env);
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// java.io.FileDescriptor.ownerId.
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static jfieldID GetFileDescriptorOwnerIdField(JNIEnv* env);
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// void java.io.FileDescriptor.<init>().
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static jmethodID GetFileDescriptorInitMethod(JNIEnv* env);
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// Global reference to java.nio.NIOAccess.
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static jclass GetNioAccessClass(JNIEnv* env);
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// Object java.nio.NIOAccess.getBaseArray(Buffer);
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static jmethodID GetNioAccessGetBaseArrayMethod(JNIEnv* env);
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// int java.nio.NIOAccess.getBaseArrayOffset(Buffer);
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static jmethodID GetNioAccessGetBaseArrayOffsetMethod(JNIEnv* env);
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// Global reference to java.nio.Buffer.
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static jclass GetNioBufferClass(JNIEnv* env);
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// long java.nio.Buffer.address
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static jfieldID GetNioBufferAddressField(JNIEnv* env);
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// int java.nio.Buffer._elementSizeShift
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static jfieldID GetNioBufferElementSizeShiftField(JNIEnv* env);
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// int java.nio.Buffer.limit;
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static jfieldID GetNioBufferLimitField(JNIEnv* env);
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// int java.nio.Buffer.position;
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static jfieldID GetNioBufferPositionField(JNIEnv* env);
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// Object java.nio.Buffer.array()
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static jmethodID GetNioBufferArrayMethod(JNIEnv* env);
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// int java.nio.Buffer.arrayOffset()
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static jmethodID GetNioBufferArrayOffsetMethod(JNIEnv* env);
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// Global reference to java.lang.ref.Reference.
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static jclass GetReferenceClass(JNIEnv* env);
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// Object java.lang.ref.Reference.get()
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static jmethodID GetReferenceGetMethod(JNIEnv* env);
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// Global reference to java.lang.String.
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static jclass GetStringClass(JNIEnv* env);
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// Ensure class constants are initialized before use. Field and method
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// constants are lazily initialized via getters.
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static void EnsureClassReferencesInitialized(JNIEnv* env);
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// Ensure any cached heap objects from previous VM instances are
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// invalidated. There is no notification here that a VM is destroyed so this
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// method must be called when a new VM is created (and calls from any
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// earlier VM's are completed). The caching of heap objects in this class is
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// one reason why there is a limit of VM instance per process.
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static void Uninitialize();
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};
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