1 files changed, 144 insertions, 0 deletions
diff --git a/src/qml/debugger/qqmlmemoryprofiler.cpp b/src/qml/debugger/qqmlmemoryprofiler.cpp
new file mode 100644
index 0000000000..53d4e7ab21
--- /dev/null
+++ b/src/qml/debugger/qqmlmemoryprofiler.cpp
@@ -0,0 +1,144 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQml module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qqmlmemoryprofiler_p.h"
+
+QT_BEGIN_NAMESPACE
+
+
+QQmlMemoryScope::LibraryState QQmlMemoryScope::state = QQmlMemoryScope::Unloaded;
+
+typedef void (qmlmemprofile_stats)(int *allocCount, int *bytesAllocated);
+typedef void (qmlmemprofile_clear)();
+typedef void (qmlmemprofile_enable)();
+typedef void (qmlmemprofile_disable)();
+typedef void (qmlmemprofile_push_location)(const char *filename, int lineNumber);
+typedef void (qmlmemprofile_pop_location)();
+typedef void (qmlmemprofile_save)(const char *filename);
+typedef int (qmlmemprofile_is_enabled)();
+
+static qmlmemprofile_stats *memprofile_stats;
+static qmlmemprofile_clear *memprofile_clear;
+static qmlmemprofile_enable *memprofile_enable;
+static qmlmemprofile_disable *memprofile_disable;
+static qmlmemprofile_push_location *memprofile_push_location;
+static qmlmemprofile_pop_location *memprofile_pop_location;
+static qmlmemprofile_save *memprofile_save;
+static qmlmemprofile_is_enabled *memprofile_is_enabled;
+
+#ifndef QT_NO_LIBRARY
+extern QFunctionPointer qt_linux_find_symbol_sys(const char *symbol);
+#endif
+
+bool QQmlMemoryScope::doOpenLibrary()
+{
+#if defined(Q_OS_LINUX) && !defined(QT_NO_LIBRARY)
+    if (state == Unloaded) {
+        memprofile_stats = (qmlmemprofile_stats *) qt_linux_find_symbol_sys("qmlmemprofile_stats");
+        memprofile_clear = (qmlmemprofile_clear *) qt_linux_find_symbol_sys("qmlmemprofile_clear");
+        memprofile_enable = (qmlmemprofile_enable *) qt_linux_find_symbol_sys("qmlmemprofile_enable");
+        memprofile_disable = (qmlmemprofile_disable *) qt_linux_find_symbol_sys("qmlmemprofile_disable");
+        memprofile_push_location = (qmlmemprofile_push_location *) qt_linux_find_symbol_sys("qmlmemprofile_push_location");
+        memprofile_pop_location = (qmlmemprofile_pop_location *) qt_linux_find_symbol_sys("qmlmemprofile_pop_location");
+        memprofile_save = (qmlmemprofile_save *) qt_linux_find_symbol_sys("qmlmemprofile_save");
+        memprofile_is_enabled = (qmlmemprofile_is_enabled *) qt_linux_find_symbol_sys("qmlmemprofile_is_enabled");
+
+        if (memprofile_stats && memprofile_clear && memprofile_enable && memprofile_disable &&
+            memprofile_push_location && memprofile_pop_location && memprofile_save && memprofile_is_enabled)
+            state = Loaded;
+        else
+            state = Failed;
+    }
+#endif  // Q_OS_LINUX
+
+    return state == Loaded;
+}
+
+void QQmlMemoryScope::init(const char *string)
+{
+    if (memprofile_is_enabled()) {
+        memprofile_push_location(string, 0);
+        pushed = true;
+    }
+}
+
+void QQmlMemoryScope::done()
+{
+    memprofile_pop_location();
+}
+
+bool QQmlMemoryProfiler::isEnabled()
+{
+    if (QQmlMemoryScope::openLibrary())
+        return memprofile_is_enabled();
+
+    return false;
+}
+
+void QQmlMemoryProfiler::enable()
+{
+    if (QQmlMemoryScope::openLibrary())
+        memprofile_enable();
+}
+
+void QQmlMemoryProfiler::disable()
+{
+    if (QQmlMemoryScope::openLibrary())
+        memprofile_disable();
+}
+
+void QQmlMemoryProfiler::clear()
+{
+    if (QQmlMemoryScope::openLibrary())
+        memprofile_clear();
+}
+
+void QQmlMemoryProfiler::stats(int *allocCount, int *bytesAllocated)
+{
+    if (QQmlMemoryScope::openLibrary())
+        memprofile_stats(allocCount, bytesAllocated);
+}
+
+void QQmlMemoryProfiler::save(const char *filename)
+{
+    if (QQmlMemoryScope::openLibrary())
+        memprofile_save(filename);
+}
+
+QT_END_NAMESPACE