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/*
* 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_thread_state_change.h"
#include "well_known_classes.h"
namespace art {
static jobject DexCache_getDexNative(JNIEnv* env, jobject javaDexCache) {
ScopedObjectAccess 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->GetThinLockId(), soa.Self()->GetThinLockId());
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
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