| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "dex_file.h" |
| #include "jni_internal.h" |
| #include "mirror/dex_cache.h" |
| #include "mirror/object-inl.h" |
| #include "scoped_fast_native_object_access.h" |
| #include "well_known_classes.h" |
| |
| namespace art { |
| |
| static jobject DexCache_getDexNative(JNIEnv* env, jobject javaDexCache) { |
| ScopedFastNativeObjectAccess soa(env); |
| mirror::DexCache* dex_cache = soa.Decode<mirror::DexCache*>(javaDexCache); |
| // Should only be called while holding the lock on the dex cache. |
| DCHECK_EQ(dex_cache->GetLockOwnerThreadId(), soa.Self()->GetThreadId()); |
| const DexFile* dex_file = dex_cache->GetDexFile(); |
| if (dex_file == NULL) { |
| return NULL; |
| } |
| void* address = const_cast<void*>(reinterpret_cast<const void*>(dex_file->Begin())); |
| jobject byte_buffer = env->NewDirectByteBuffer(address, dex_file->Size()); |
| if (byte_buffer == NULL) { |
| DCHECK(soa.Self()->IsExceptionPending()); |
| return NULL; |
| } |
| |
| jvalue args[1]; |
| args[0].l = byte_buffer; |
| return env->CallStaticObjectMethodA(WellKnownClasses::com_android_dex_Dex, |
| WellKnownClasses::com_android_dex_Dex_create, |
| args); |
| } |
| |
| static JNINativeMethod gMethods[] = { |
| NATIVE_METHOD(DexCache, getDexNative, "!()Lcom/android/dex/Dex;"), |
| }; |
| |
| void register_java_lang_DexCache(JNIEnv* env) { |
| REGISTER_NATIVE_METHODS("java/lang/DexCache"); |
| } |
| |
| } // namespace art |