1 files changed, 54 insertions, 0 deletions
diff --git a/intern/cycles/util/stats.h b/intern/cycles/util/stats.h
new file mode 100644
index 00000000000..590973f1cbc
--- /dev/null
+++ b/intern/cycles/util/stats.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2011-2013 Blender Foundation
+ *
+ * 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.
+ */
+
+#ifndef __UTIL_STATS_H__
+#define __UTIL_STATS_H__
+
+#include "util/atomic.h"
+#include "util/profiling.h"
+
+CCL_NAMESPACE_BEGIN
+
+class Stats {
+ public:
+  enum static_init_t { static_init = 0 };
+
+  Stats() : mem_used(0), mem_peak(0)
+  {
+  }
+  explicit Stats(static_init_t)
+  {
+  }
+
+  void mem_alloc(size_t size)
+  {
+    atomic_add_and_fetch_z(&mem_used, size);
+    atomic_fetch_and_update_max_z(&mem_peak, mem_used);
+  }
+
+  void mem_free(size_t size)
+  {
+    assert(mem_used >= size);
+    atomic_sub_and_fetch_z(&mem_used, size);
+  }
+
+  size_t mem_used;
+  size_t mem_peak;
+};
+
+CCL_NAMESPACE_END
+
+#endif /* __UTIL_STATS_H__ */