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Diffstat (limited to 'tutorials/MoarRam/jni/bar.c')
| -rw-r--r-- | tutorials/MoarRam/jni/bar.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/tutorials/MoarRam/jni/bar.c b/tutorials/MoarRam/jni/bar.c new file mode 100644 index 000000000..7b00e6299 --- /dev/null +++ b/tutorials/MoarRam/jni/bar.c @@ -0,0 +1,58 @@ +/* + * 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. + * + */ + +#include <jni.h> +#include <cutils/log.h> + +#if defined(LOG_TAG) +#undef LOG_TAG +#define LOG_TAG "MOARRAM" +#endif + +char *gPtr2; +static int num2MByteBlocks; + +void +Java_com_android_benchmark_moarram_MainActivity_add2MByteBlocksNative( + JNIEnv* env, + jobject this) +{ + char **ptr = malloc(2*1024*1024); + *ptr = gPtr2; + gPtr2 = (char *) ptr; + num2MByteBlocks++; + ALOGW("%d 2M-byte blocks allocated so far (just allocated %p)", + num2MByteBlocks, gPtr2); +} + +void +Java_com_android_benchmark_moarram_MainActivity_free2MByteBlocksNative( + JNIEnv* env, + jobject this) +{ + if (gPtr2 == NULL) { + ALOGW("All 2M-byte blocks are freed"); + return; + } + + char **ptr = (char **) gPtr2; + gPtr2 = *ptr; + free(ptr); + num2MByteBlocks--; + ALOGW("%d 2M-byte blocks allocated so far (just freed %p)", + num2MByteBlocks, ptr); +} |
