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Diffstat (limited to 'test/NativeAllocations/NativeAllocations.java')
| -rw-r--r-- | test/NativeAllocations/NativeAllocations.java | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/test/NativeAllocations/NativeAllocations.java b/test/NativeAllocations/NativeAllocations.java new file mode 100644 index 0000000000..9423b91c16 --- /dev/null +++ b/test/NativeAllocations/NativeAllocations.java @@ -0,0 +1,65 @@ +/* + * Copyright (C) 2013 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. + */ + +import java.lang.reflect.*; + +class NativeAllocations { + static Object nativeLock = new Object(); + static int nativeBytes = 0; + static Object runtime; + static Method register_native_allocation; + static Method register_native_free; + static int maxMem = 64 * 1024 * 1024; + + static class NativeAllocation { + private int bytes; + + NativeAllocation(int bytes) throws Exception { + this.bytes = bytes; + register_native_allocation.invoke(runtime, bytes); + synchronized (nativeLock) { + nativeBytes += bytes; + if (nativeBytes > maxMem) { + throw new OutOfMemoryError(); + } + } + } + + protected void finalize() throws Exception { + synchronized (nativeLock) { + nativeBytes -= bytes; + } + register_native_free.invoke(runtime, bytes); + } + } + + public static void main(String[] args) throws Exception { + Class<?> vm_runtime = Class.forName("dalvik.system.VMRuntime"); + Method get_runtime = vm_runtime.getDeclaredMethod("getRuntime"); + runtime = get_runtime.invoke(null); + register_native_allocation = vm_runtime.getDeclaredMethod("registerNativeAllocation", Integer.TYPE); + register_native_free = vm_runtime.getDeclaredMethod("registerNativeFree", Integer.TYPE); + int count = 16; + int size = 512 * 0x400; + int allocation_count = 256; + NativeAllocation[] allocations = new NativeAllocation[count]; + for (int i = 0; i < allocation_count; ++i) { + allocations[i % count] = new NativeAllocation(size); + } + System.out.println("Test complete"); + } +} + |