57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
/*
|
|
* 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 "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
|