Ben Cheng | 50172ca | 2013-05-10 13:37:56 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 | |
| 18 | #include <jni.h> |
| 19 | #include <cutils/log.h> |
| 20 | |
| 21 | #if defined(LOG_TAG) |
| 22 | #undef LOG_TAG |
| 23 | #define LOG_TAG "MOARRAM" |
| 24 | #endif |
| 25 | |
| 26 | char *gPtr17; |
| 27 | char *gPtr71; |
| 28 | static int num17ByteBlocks; |
| 29 | static int num71ByteBlocks; |
| 30 | |
| 31 | void |
| 32 | Java_com_android_benchmark_moarram_MainActivity_addVariableSizedBlocksNative( |
| 33 | JNIEnv* env, |
| 34 | jobject this, |
| 35 | jint id) |
| 36 | { |
| 37 | int size; |
| 38 | char **gPtr; |
| 39 | char **ptr; |
| 40 | if (id == 0) { |
| 41 | size = 17; |
| 42 | gPtr = &gPtr17; |
| 43 | } else { |
| 44 | size = 71; |
| 45 | gPtr = &gPtr71; |
| 46 | } |
| 47 | ptr = malloc(size); |
| 48 | *ptr = *gPtr; |
| 49 | *gPtr = (char *) ptr; |
| 50 | ALOGW("%d %d-byte blocks allocated so far (just allocated %p)", |
| 51 | id == 0 ? ++num17ByteBlocks : ++num71ByteBlocks, |
| 52 | size, ptr); |
| 53 | } |
| 54 | |
| 55 | void |
| 56 | Java_com_android_benchmark_moarram_MainActivity_freeVariableSizedBlocksNative( |
| 57 | JNIEnv* env, |
| 58 | jobject this, |
| 59 | jint id) |
| 60 | { |
| 61 | int size; |
| 62 | char **ptr; |
| 63 | char **gPtr; |
| 64 | if (id == 0) { |
| 65 | size = 17; |
| 66 | gPtr = &gPtr17; |
| 67 | } else { |
| 68 | size = 71; |
| 69 | gPtr = &gPtr71; |
| 70 | } |
| 71 | if (*gPtr == NULL) { |
| 72 | ALOGW("All %d-byte blocks are freed", size); |
| 73 | return; |
| 74 | } |
| 75 | ptr = (char **) *gPtr; |
| 76 | *gPtr = *ptr; |
| 77 | free(ptr); |
| 78 | ALOGW("%d %d-byte blocks allocated so far (just freed %p)", |
| 79 | id == 0 ? --num17ByteBlocks : --num71ByteBlocks, |
| 80 | size, ptr); |
| 81 | } |