array.h revision 590fee9e8972f872301c2d16a575d579ee564bee
12dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers/* 22dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * Copyright (C) 2011 The Android Open Source Project 32dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * 42dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * Licensed under the Apache License, Version 2.0 (the "License"); 52dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * you may not use this file except in compliance with the License. 62dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * You may obtain a copy of the License at 72dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * 82dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * http://www.apache.org/licenses/LICENSE-2.0 92dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * 102dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * Unless required by applicable law or agreed to in writing, software 112dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * distributed under the License is distributed on an "AS IS" BASIS, 122dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 132dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * See the License for the specific language governing permissions and 142dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers * limitations under the License. 152dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers */ 162dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 17fc0e3219edc9a5bf81b166e82fd5db2796eb6a0dBrian Carlstrom#ifndef ART_RUNTIME_MIRROR_ARRAY_H_ 18fc0e3219edc9a5bf81b166e82fd5db2796eb6a0dBrian Carlstrom#define ART_RUNTIME_MIRROR_ARRAY_H_ 192dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 202dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "object.h" 212dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 222dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersnamespace art { 232dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersnamespace mirror { 242dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 252dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass MANAGED Array : public Object { 262dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers public: 27590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier // A convenience for code that doesn't know the component size, and doesn't want to have to work 28590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier // it out itself. 29590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier template <bool kIsMovable, bool kIsInstrumented> 302dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static Array* Alloc(Thread* self, Class* array_class, int32_t component_count) 312dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 322dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 33590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier template <bool kIsMovable, bool kIsInstrumented> 342dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static Array* Alloc(Thread* self, Class* array_class, int32_t component_count, 35590fee9e8972f872301c2d16a575d579ee564beeMathieu Chartier size_t component_size) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 362dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static Array* CreateMultiArray(Thread* self, Class* element_class, IntArray* dimensions) 382dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 392dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 402dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers size_t SizeOf() const; 412dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 422dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int32_t GetLength() const { 432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return GetField32(OFFSET_OF_OBJECT_MEMBER(Array, length_), false); 442dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 452dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 462dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void SetLength(int32_t length) { 472dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers CHECK_GE(length, 0); 482dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SetField32(OFFSET_OF_OBJECT_MEMBER(Array, length_), length, false); 492dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 502dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 512dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static MemberOffset LengthOffset() { 522dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return OFFSET_OF_OBJECT_MEMBER(Array, length_); 532dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 542dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 552dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static MemberOffset DataOffset(size_t component_size) { 562dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers if (component_size != sizeof(int64_t)) { 572dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return OFFSET_OF_OBJECT_MEMBER(Array, first_element_); 582dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } else { 592dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers // Align longs and doubles. 602dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return MemberOffset(OFFSETOF_MEMBER(Array, first_element_) + 4); 612dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 622dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 632dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 642dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void* GetRawData(size_t component_size) { 652dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers intptr_t data = reinterpret_cast<intptr_t>(this) + DataOffset(component_size).Int32Value(); 662dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return reinterpret_cast<void*>(data); 672dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 682dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 692dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers const void* GetRawData(size_t component_size) const { 702dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers intptr_t data = reinterpret_cast<intptr_t>(this) + DataOffset(component_size).Int32Value(); 712dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return reinterpret_cast<const void*>(data); 722dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 732dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 742dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers bool IsValidIndex(int32_t index) const 752dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 7666d1aeefed5b7af9e0682b2f298390b86b18e657Sebastien Hertz if (UNLIKELY(static_cast<uint32_t>(index) >= static_cast<uint32_t>(GetLength()))) { 779897be996580db9de86f880f9ad9d36c66057a52Sebastien Hertz ThrowArrayIndexOutOfBoundsException(index); 789897be996580db9de86f880f9ad9d36c66057a52Sebastien Hertz return false; 792dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 802dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return true; 812dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 822dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 832dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers protected: 849897be996580db9de86f880f9ad9d36c66057a52Sebastien Hertz void ThrowArrayIndexOutOfBoundsException(int32_t index) const 852dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 869897be996580db9de86f880f9ad9d36c66057a52Sebastien Hertz void ThrowArrayStoreException(Object* object) const 872dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 882dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 892dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers private: 902dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers // The number of array elements. 912dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers int32_t length_; 922dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers // Marker for the data (used by generated code) 932dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers uint32_t first_element_[0]; 942dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 952dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers DISALLOW_IMPLICIT_CONSTRUCTORS(Array); 962dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers}; 972dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 982dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogerstemplate<class T> 992dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogersclass MANAGED PrimitiveArray : public Array { 1002dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers public: 1012dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers typedef T ElementType; 1022dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 1032dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static PrimitiveArray<T>* Alloc(Thread* self, size_t length) 1042dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 1052dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 1062dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers const T* GetData() const { 1072dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers intptr_t data = reinterpret_cast<intptr_t>(this) + DataOffset(sizeof(T)).Int32Value(); 1082dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return reinterpret_cast<T*>(data); 1092dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 1102dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 1112dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers T* GetData() { 1122dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers intptr_t data = reinterpret_cast<intptr_t>(this) + DataOffset(sizeof(T)).Int32Value(); 1132dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return reinterpret_cast<T*>(data); 1142dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 1152dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 1162dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers T Get(int32_t i) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1172dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers if (!IsValidIndex(i)) { 1182dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return T(0); 1192dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 1202dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers return GetData()[i]; 1212dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 1222dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 1232dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers void Set(int32_t i, T value) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 1242dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers if (IsValidIndex(i)) { 1252dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers GetData()[i] = value; 1262dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 1272dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 1282dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 1292dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static void SetArrayClass(Class* array_class) { 1302dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers CHECK(array_class_ == NULL); 1312dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers CHECK(array_class != NULL); 1322dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers array_class_ = array_class; 1332dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 1342dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 1352dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static void ResetArrayClass() { 1362dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers CHECK(array_class_ != NULL); 1372dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers array_class_ = NULL; 1382dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers } 1392dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 1402dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers private: 1412dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers static Class* array_class_; 1422dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 1432dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers DISALLOW_IMPLICIT_CONSTRUCTORS(PrimitiveArray); 1442dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers}; 1452dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 1462dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers} // namespace mirror 1472dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers} // namespace art 1482dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers 149fc0e3219edc9a5bf81b166e82fd5db2796eb6a0dBrian Carlstrom#endif // ART_RUNTIME_MIRROR_ARRAY_H_ 150