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      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 *gPtr;
     27 static int num32ByteBlocks;
     28 
     29 void
     30 Java_com_android_benchmark_moarram_MainActivity_add32ByteBlocksNative(
     31     JNIEnv*  env,
     32     jobject  this)
     33 {
     34     char **ptr = malloc(32);
     35     *ptr = gPtr;
     36     gPtr = (char *) ptr;
     37     num32ByteBlocks++;
     38     ALOGW("%d 32-byte blocks allocated so far (just allocated %p)",
     39           num32ByteBlocks, gPtr);
     40 }
     41 
     42 void
     43 Java_com_android_benchmark_moarram_MainActivity_free32ByteBlocksNative(
     44     JNIEnv*  env,
     45     jobject  this)
     46 {
     47     if (gPtr == NULL) {
     48         ALOGW("All 32-byte blocks are freed");
     49         return;
     50     }
     51 
     52     char **ptr = (char **) gPtr;
     53     gPtr = *ptr;
     54     free(ptr);
     55     num32ByteBlocks--;
     56     ALOGW("%d 32-byte blocks allocated so far (just freed %p)",
     57           num32ByteBlocks, ptr);
     58 }
     59