webengine/osswebengine/WebCore/platform/StaticConstructors.h
changeset 0 dd21522fd290
child 16 a359256acfc6
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/StaticConstructors.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the DOM implementation for KDE.
+ *
+ * Copyright (C) 2006 Apple Computer, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+// For WebCore we need to avoid having static constructors.
+// Our strategy is to declare the global objects with a different type (initialized to 0)
+// and then use placement new to initialize the global objects later. This is not completely
+// portable, and it would be good to figure out a 100% clean way that still avoids code that
+// runs at init time.
+
+#ifndef AVOID_STATIC_CONSTRUCTORS
+    // Define an global in the normal way.
+#if PLATFORM(SYMBIAN)
+#define DEFINE_GLOBAL(type, name, args...) \
+    const type name;
+#else
+#define DEFINE_GLOBAL(type, name, ...) \
+    const type name;
+#endif
+#else
+// Define an correctly-sized array of pointers to avoid static initialization.
+// Use an array of pointers instead of an array of char in case there is some alignment issue.
+#define DEFINE_GLOBAL(type, name, ...) \
+    void * name[(sizeof(type) + sizeof(void *) - 1) / sizeof(void *)];
+#endif