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 <malloc.h>
20 #include <cutils/log.h>
21
22 #if defined(LOG_TAG)
23 #undef LOG_TAG
24 #define LOG_TAG "MOARRAM"
25 #endif
26
27 char *gPtr17;
28 char *gPtr71;
29 static int num17ByteBlocks;
30 static int num71ByteBlocks;
31
32 void
Java_com_android_benchmark_moarram_MainActivity_addVariableSizedBlocksNative(JNIEnv * env,jobject this,jint id)33 Java_com_android_benchmark_moarram_MainActivity_addVariableSizedBlocksNative(
34 JNIEnv* env,
35 jobject this,
36 jint id)
37 {
38 int size;
39 char **gPtr;
40 char **ptr;
41 if (id == 0) {
42 size = 17;
43 gPtr = &gPtr17;
44 } else {
45 size = 71;
46 gPtr = &gPtr71;
47 }
48 ptr = malloc(size);
49 *ptr = *gPtr;
50 *gPtr = (char *) ptr;
51 ALOGW("%d %d-byte blocks allocated so far (just allocated %p)",
52 id == 0 ? ++num17ByteBlocks : ++num71ByteBlocks,
53 size, ptr);
54 }
55
56 void
Java_com_android_benchmark_moarram_MainActivity_freeVariableSizedBlocksNative(JNIEnv * env,jobject this,jint id)57 Java_com_android_benchmark_moarram_MainActivity_freeVariableSizedBlocksNative(
58 JNIEnv* env,
59 jobject this,
60 jint id)
61 {
62 int size;
63 char **ptr;
64 char **gPtr;
65 if (id == 0) {
66 size = 17;
67 gPtr = &gPtr17;
68 } else {
69 size = 71;
70 gPtr = &gPtr71;
71 }
72 if (*gPtr == NULL) {
73 ALOGW("All %d-byte blocks are freed", size);
74 return;
75 }
76 ptr = (char **) *gPtr;
77 *gPtr = *ptr;
78 free(ptr);
79 ALOGW("%d %d-byte blocks allocated so far (just freed %p)",
80 id == 0 ? --num17ByteBlocks : --num71ByteBlocks,
81 size, ptr);
82 }
83