1 files changed, 61 insertions, 0 deletions
diff --git a/intern/guardedalloc/intern/leak_detector.cc b/intern/guardedalloc/intern/leak_detector.cc
new file mode 100644
index 00000000000..4b2689ee28c
--- /dev/null
+++ b/intern/guardedalloc/intern/leak_detector.cc
@@ -0,0 +1,61 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/** \file
+ * \ingroup MEM
+ */
+
+#include "MEM_guardedalloc.h"
+#include "mallocn_intern.h"
+
+bool leak_detector_has_run = false;
+char free_after_leak_detection_message[] =
+    "Freeing memory after the leak detector has run. This can happen when using "
+    "static variables in C++ that are defined outside of functions. To fix this "
+    "error, use the 'construct on first use' idiom.";
+
+namespace {
+class MemLeakPrinter {
+ public:
+  ~MemLeakPrinter()
+  {
+    leak_detector_has_run = true;
+    const uint leaked_blocks = MEM_get_memory_blocks_in_use();
+    if (leaked_blocks == 0) {
+      return;
+    }
+    const size_t mem_in_use = MEM_get_memory_in_use();
+    printf("Error: Not freed memory blocks: %u, total unfreed memory %f MB\n",
+           leaked_blocks,
+           (double)mem_in_use / 1024 / 1024);
+    MEM_printmemlist();
+  }
+};
+}  // namespace
+
+void MEM_initialize_memleak_detection(void)
+{
+  /**
+   * This variable is constructed when this function is first called. This should happen as soon as
+   * possible when the program starts.
+   *
+   * It is destructed when the program exits. During destruction, it will print information about
+   * leaked memory blocks. Static variables are destructed in reversed order of their
+   * construction. Therefore, all static variables that own memory have to be constructed after
+   * this function has been called.
+   */
+  static MemLeakPrinter printer;
+}