Alex Light | a7e38d8 | 2017-01-19 14:57:28 -0800 | [diff] [blame] | 1 | /* Copyright (C) 2017 The Android Open Source Project |
| 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 3 | * |
| 4 | * This file implements interfaces from the file jvmti.h. This implementation |
| 5 | * is licensed under the same terms as the file jvmti.h. The |
| 6 | * copyright and license information for the file jvmti.h follows. |
| 7 | * |
| 8 | * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. |
| 9 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 10 | * |
| 11 | * This code is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU General Public License version 2 only, as |
| 13 | * published by the Free Software Foundation. Oracle designates this |
| 14 | * particular file as subject to the "Classpath" exception as provided |
| 15 | * by Oracle in the LICENSE file that accompanied this code. |
| 16 | * |
| 17 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 20 | * version 2 for more details (a copy is included in the LICENSE file that |
| 21 | * accompanied this code). |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License version |
| 24 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 25 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 26 | * |
| 27 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 28 | * or visit www.oracle.com if you need additional information or have any |
| 29 | * questions. |
| 30 | */ |
| 31 | |
| 32 | #ifndef ART_RUNTIME_OPENJDKJVMTI_TI_CLASS_DEFINITION_H_ |
| 33 | #define ART_RUNTIME_OPENJDKJVMTI_TI_CLASS_DEFINITION_H_ |
| 34 | |
| 35 | #include "art_jvmti.h" |
| 36 | |
| 37 | namespace openjdkjvmti { |
| 38 | |
| 39 | // A struct that stores data needed for redefining/transforming classes. This structure should only |
| 40 | // even be accessed from a single thread and must not survive past the completion of the |
| 41 | // redefinition/retransformation function that created it. |
| 42 | struct ArtClassDefinition { |
| 43 | public: |
| 44 | jclass klass; |
| 45 | jobject loader; |
| 46 | std::string name; |
| 47 | jobject protection_domain; |
| 48 | jint dex_len; |
Andreas Gampe | 5471141 | 2017-02-21 12:41:43 -0800 | [diff] [blame] | 49 | JvmtiUniquePtr<unsigned char> dex_data; |
Alex Light | a7e38d8 | 2017-01-19 14:57:28 -0800 | [diff] [blame] | 50 | art::ArraySlice<const unsigned char> original_dex_file; |
| 51 | |
| 52 | ArtClassDefinition() = default; |
| 53 | ArtClassDefinition(ArtClassDefinition&& o) = default; |
| 54 | |
| 55 | void SetNewDexData(ArtJvmTiEnv* env, jint new_dex_len, unsigned char* new_dex_data) { |
| 56 | if (new_dex_data == nullptr) { |
| 57 | return; |
| 58 | } else if (new_dex_data != dex_data.get() || new_dex_len != dex_len) { |
| 59 | SetModified(); |
| 60 | dex_len = new_dex_len; |
| 61 | dex_data = MakeJvmtiUniquePtr(env, new_dex_data); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | void SetModified() { |
| 66 | modified = true; |
| 67 | } |
| 68 | |
| 69 | bool IsModified(art::Thread* self) const REQUIRES_SHARED(art::Locks::mutator_lock_); |
| 70 | |
| 71 | private: |
| 72 | bool modified; |
| 73 | }; |
| 74 | |
| 75 | } // namespace openjdkjvmti |
| 76 | |
| 77 | #endif // ART_RUNTIME_OPENJDKJVMTI_TI_CLASS_DEFINITION_H_ |