Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdesdk@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 51 insertions, 0 deletions

diff --git a/kprofilemethod/kprofilemethod.h b/kprofilemethod/kprofilemethod.h
new file mode 100644
index 00000000..fc5ecbe1
--- /dev/null
+++ b/kprofilemethod/kprofilemethod.h
@@ -0,0 +1,51 @@
+/* This file is part of the KDE project
+   Copyright (C) 2002 David Faure <faure@kde.org>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License version 2, as published by the Free Software Foundation.
+
+   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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this program; see the file COPYING.  If not, write to
+   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+*/
+
+#ifndef KPROFILE_METHOD_H
+#define KPROFILE_METHOD_H
+
+#include <qdatetime.h>
+#include <kdebug.h>
+
+/**
+ * Those macros help profiling using QTime.
+ * They allow to sum up the time taken by a given bit of code
+ * in a method called several times.
+ * This way one can find out which low-level method used by a high-level
+ * method is taking most of its time
+ *
+ *
+ *  Declare the var somewhere, out of any method:
+ *   int pr_theMethod = 0;
+ *  (the name pr_* helps finding and removing all of this before committing)
+ *
+ *  Then in the method, around the code to be timed:
+ *   PROFILE_METHOD_BEGIN( pr_theMethod );
+ *   ...
+ *   PROFILE_METHOD_END( pr_theMethod );
+ *
+ *  And finally, to see the result, put this call in a method
+ *  called after all that (destructor, program exit...)
+ *   PROFILE_METHOD_PRINT( pr_theMethod, "theMethod" );
+ *
+ */
+#define PROFILE_METHOD_BEGIN(sym) extern int sym; QTime profile_dt##sym; profile_dt##sym.start();
+#define PROFILE_METHOD_END(sym) extern int sym; sym += profile_dt##sym.elapsed();
+#define PROFILE_METHOD_PRINT(sym, name) extern int sym; kdDebug() << name << " took " << sym << " milliseconds" << endl;
+
+#endif // KPROFILE_METHOD_H