1 files changed, 92 insertions, 0 deletions
diff --git a/include/comphelper/profilezone.hxx b/include/comphelper/profilezone.hxx
new file mode 100644
index 000000000..71f9fa30b
--- /dev/null
+++ b/include/comphelper/profilezone.hxx
@@ -0,0 +1,92 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+*/
+
+#ifndef INCLUDED_COMPHELPER_PROFILEZONE_HXX
+#define INCLUDED_COMPHELPER_PROFILEZONE_HXX
+
+#include <sal/config.h>
+
+#include <sal/log.hxx>
+
+#include <comphelper/traceevent.hxx>
+
+// implementation of XToolkitExperimental profiling API
+
+namespace comphelper
+{
+class COMPHELPER_DLLPUBLIC ProfileZone : public NamedEvent
+{
+    long long m_nCreateTime;
+    int m_nNesting;
+
+    void addRecording();
+
+    static void setNestingLevel(int nNestingLevel);
+    static int getNestingLevel();
+
+    ProfileZone(const char* sName, const OUString& sArgs)
+        : NamedEvent(sName, sArgs)
+        , m_nNesting(-1)
+    {
+        if (s_bRecording)
+        {
+            m_nCreateTime = getNow();
+
+            m_nNesting = getNestingLevel();
+            setNestingLevel(getNestingLevel() + 1);
+        }
+        else
+            m_nCreateTime = 0;
+    }
+
+public:
+    /**
+     * Starts measuring the cost of a C++ scope.
+     *
+     * Note that the char pointer is stored as such in the ProfileZone object and used in the
+     * destructor, so be sure to pass a pointer that stays valid for the duration of the object's
+     * lifetime.
+     */
+    ProfileZone(const char* sName, const std::map<OUString, OUString>& aArgs)
+        : ProfileZone(sName, createArgsString(aArgs))
+    {
+    }
+
+    ProfileZone(const char* sName)
+        : ProfileZone(sName, OUString())
+    {
+    }
+
+    ~ProfileZone()
+    {
+        if (m_nCreateTime > 0)
+        {
+            setNestingLevel(getNestingLevel() - 1);
+
+            if (m_nNesting != getNestingLevel())
+            {
+                SAL_WARN("comphelper.traceevent", "Incorrect ProfileZone nesting for " << m_sName);
+            }
+            else
+            {
+                if (s_bRecording)
+                    addRecording();
+            }
+        }
+    }
+
+    ProfileZone(const ProfileZone&) = delete;
+    void operator=(const ProfileZone&) = delete;
+};
+
+} // namespace comphelper
+
+#endif // INCLUDED_COMPHELPER_PROFILEZONE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */