1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef EPHEMERAL_STORAGE_H_ 18 19 #define EPHEMERAL_STORAGE_H_ 20 21 #include <android-base/macros.h> 22 #include <hidl/HidlSupport.h> 23 #include <jni.h> 24 #include <utils/Vector.h> 25 26 namespace android { 27 28 #define DECLARE_ALLOC_METHODS(Suffix,Type) \ 29 const ::android::hardware::hidl_vec<Type> * \ 30 allocTemporary ## Suffix ## Vector( \ 31 JNIEnv *env, Type ## Array arrayObj); 32 33 struct EphemeralStorage { 34 EphemeralStorage(); 35 ~EphemeralStorage(); 36 37 void release(JNIEnv *env); 38 39 hardware::hidl_string *allocStringArray(size_t size); 40 41 void *allocTemporaryStorage(size_t size); 42 43 const ::android::hardware::hidl_string *allocTemporaryString( 44 JNIEnv *env, jstring stringObj); 45 46 DECLARE_ALLOC_METHODS(Int8,jbyte) 47 DECLARE_ALLOC_METHODS(Int16,jshort) 48 DECLARE_ALLOC_METHODS(Int32,jint) 49 DECLARE_ALLOC_METHODS(Int64,jlong) 50 DECLARE_ALLOC_METHODS(Float,jfloat) 51 DECLARE_ALLOC_METHODS(Double,jdouble) 52 53 private: 54 enum Type { 55 TYPE_STRING_ARRAY, 56 TYPE_STORAGE, 57 TYPE_STRING, 58 TYPE_Int8_ARRAY, 59 TYPE_Int16_ARRAY, 60 TYPE_Int32_ARRAY, 61 TYPE_Int64_ARRAY, 62 TYPE_Float_ARRAY, 63 TYPE_Double_ARRAY, 64 }; 65 66 struct Item { 67 Type mType; 68 jobject mObj; 69 void *mPtr; 70 }; 71 72 Vector<Item> mItems; 73 74 DISALLOW_COPY_AND_ASSIGN(EphemeralStorage); 75 }; 76 77 #undef DECLARE_ALLOC_METHODS 78 79 } // namespace android 80 81 #endif // EPHEMERAL_STORAGE_H_ 82
