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-rw-r--r--tutorials/MoarRam/jni/baz.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/tutorials/MoarRam/jni/baz.c b/tutorials/MoarRam/jni/baz.c
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+++ 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);
+}