New tutorial app for DDMS native heap tracker.
Change-Id: Ia8d35bc1ee44c6aaffe6fa10c6339edfa053aba4
diff --git a/tutorials/MoarRam/jni/Android.mk b/tutorials/MoarRam/jni/Android.mk
new file mode 100644
index 0000000..933cbdf
--- /dev/null
+++ b/tutorials/MoarRam/jni/Android.mk
@@ -0,0 +1,43 @@
+# 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.
+#
+
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := libmoarram-32
+LOCAL_SRC_FILES := foo.c
+LOCAL_SHARED_LIBRARIES += liblog
+
+include $(BUILD_SHARED_LIBRARY)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := libmoarram-2M
+LOCAL_SRC_FILES := bar.c
+LOCAL_SHARED_LIBRARIES += liblog
+
+include $(BUILD_SHARED_LIBRARY)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := libmoarram-17_71
+LOCAL_SRC_FILES := baz.c
+LOCAL_SHARED_LIBRARIES += liblog
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/tutorials/MoarRam/jni/bar.c b/tutorials/MoarRam/jni/bar.c
new file mode 100644
index 0000000..7b00e62
--- /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);
+}
diff --git a/tutorials/MoarRam/jni/baz.c b/tutorials/MoarRam/jni/baz.c
new file mode 100644
index 0000000..1262e40
--- /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);
+}
diff --git a/tutorials/MoarRam/jni/foo.c b/tutorials/MoarRam/jni/foo.c
new file mode 100644
index 0000000..a318c74
--- /dev/null
+++ b/tutorials/MoarRam/jni/foo.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 *gPtr;
+static int num32ByteBlocks;
+
+void
+Java_com_android_benchmark_moarram_MainActivity_add32ByteBlocksNative(
+ JNIEnv* env,
+ jobject this)
+{
+ char **ptr = malloc(32);
+ *ptr = gPtr;
+ gPtr = (char *) ptr;
+ num32ByteBlocks++;
+ ALOGW("%d 32-byte blocks allocated so far (just allocated %p)",
+ num32ByteBlocks, gPtr);
+}
+
+void
+Java_com_android_benchmark_moarram_MainActivity_free32ByteBlocksNative(
+ JNIEnv* env,
+ jobject this)
+{
+ if (gPtr == NULL) {
+ ALOGW("All 32-byte blocks are freed");
+ return;
+ }
+
+ char **ptr = (char **) gPtr;
+ gPtr = *ptr;
+ free(ptr);
+ num32ByteBlocks--;
+ ALOGW("%d 32-byte blocks allocated so far (just freed %p)",
+ num32ByteBlocks, ptr);
+}