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Diffstat (limited to 'tutorials/MoarRam/jni/baz.c')
-rw-r--r-- | tutorials/MoarRam/jni/baz.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/tutorials/MoarRam/jni/baz.c b/tutorials/MoarRam/jni/baz.c new file mode 100644 index 000000000..1262e40fb --- /dev/null +++ b/tutorials/MoarRam/jni/baz.c @@ -0,0 +1,81 @@ +/* + * 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 *gPtr17; +char *gPtr71; +static int num17ByteBlocks; +static int num71ByteBlocks; + +void +Java_com_android_benchmark_moarram_MainActivity_addVariableSizedBlocksNative( + JNIEnv* env, + jobject this, + jint id) +{ + int size; + char **gPtr; + char **ptr; + if (id == 0) { + size = 17; + gPtr = &gPtr17; + } else { + size = 71; + gPtr = &gPtr71; + } + ptr = malloc(size); + *ptr = *gPtr; + *gPtr = (char *) ptr; + ALOGW("%d %d-byte blocks allocated so far (just allocated %p)", + id == 0 ? ++num17ByteBlocks : ++num71ByteBlocks, + size, ptr); +} + +void +Java_com_android_benchmark_moarram_MainActivity_freeVariableSizedBlocksNative( + JNIEnv* env, + jobject this, + jint id) +{ + int size; + char **ptr; + char **gPtr; + if (id == 0) { + size = 17; + gPtr = &gPtr17; + } else { + size = 71; + gPtr = &gPtr71; + } + if (*gPtr == NULL) { + ALOGW("All %d-byte blocks are freed", size); + return; + } + ptr = (char **) *gPtr; + *gPtr = *ptr; + free(ptr); + ALOGW("%d %d-byte blocks allocated so far (just freed %p)", + id == 0 ? --num17ByteBlocks : --num71ByteBlocks, + size, ptr); +} |