1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <sys/stat.h>
18 #include <string>
19
20 #include <jni.h>
21 #include "JNIHelp.h"
22 #include "ScopedUtfChars.h"
23
24 uint64_t gNumNativeBytesAllocated = 0;
25
finalize(uint64_t * ptr)26 static void finalize(uint64_t* ptr) {
27 gNumNativeBytesAllocated -= *ptr;
28 delete ptr;
29 }
30
31 extern "C"
Java_libcore_util_NativeAllocationRegistryTest_getNativeFinalizer(JNIEnv *,jclass)32 jlong Java_libcore_util_NativeAllocationRegistryTest_getNativeFinalizer(JNIEnv*, jclass) {
33 return static_cast<jlong>(reinterpret_cast<uintptr_t>(&finalize));
34 }
35
36 extern "C"
Java_libcore_util_NativeAllocationRegistryTest_doNativeAllocation(JNIEnv *,jclass,jlong size)37 jlong Java_libcore_util_NativeAllocationRegistryTest_doNativeAllocation(JNIEnv*,
38 jclass,
39 jlong size) {
40 gNumNativeBytesAllocated += size;
41
42 // The actual allocation is a pointer to the pretend size of the allocation.
43 uint64_t* ptr = new uint64_t;
44 *ptr = static_cast<uint64_t>(size);
45 return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr));
46 }
47
48 extern "C"
Java_libcore_util_NativeAllocationRegistryTest_getNumNativeBytesAllocated(JNIEnv *,jclass)49 jlong Java_libcore_util_NativeAllocationRegistryTest_getNumNativeBytesAllocated(JNIEnv*, jclass) {
50 return static_cast<jlong>(gNumNativeBytesAllocated);
51 }
52