1 files changed, 80 insertions, 21 deletions

diff --git a/indra/newview/llcallbacklist.cpp b/indra/newview/llcallbacklist.cpp
index bba4d021cd..357a6582d1 100644
--- a/indra/newview/llcallbacklist.cpp
+++ b/indra/newview/llcallbacklist.cpp
@@ -2,31 +2,25 @@
  * @file llcallbacklist.cpp
  * @brief A simple list of callback functions to call.
  *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- * 
- * Copyright (c) 2001-2009, Linden Research, Inc.
- * 
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
  * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab.  Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * Copyright (C) 2010, Linden Research, Inc.
  * 
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
  * 
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
+ * 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
+ * Lesser General Public License for more details.
  * 
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  */
 
@@ -121,6 +115,71 @@ void LLCallbackList::callFunctions()
 	}
 }
 
+// Shim class to allow arbitrary boost::bind
+// expressions to be run as one-time idle callbacks.
+class OnIdleCallbackOneTime
+{
+public:
+	OnIdleCallbackOneTime(nullary_func_t callable):
+		mCallable(callable)
+	{
+	}
+	static void onIdle(void *data)
+	{
+		gIdleCallbacks.deleteFunction(onIdle, data);
+		OnIdleCallbackOneTime* self = reinterpret_cast<OnIdleCallbackOneTime*>(data);
+		self->call();
+		delete self;
+	}
+	void call()
+	{
+		mCallable();
+	}
+private:
+	nullary_func_t mCallable;
+};
+
+void doOnIdleOneTime(nullary_func_t callable)
+{
+	OnIdleCallbackOneTime* cb_functor = new OnIdleCallbackOneTime(callable);
+	gIdleCallbacks.addFunction(&OnIdleCallbackOneTime::onIdle,cb_functor);
+}
+
+// Shim class to allow generic boost functions to be run as
+// recurring idle callbacks.  Callable should return true when done,
+// false to continue getting called.
+class OnIdleCallbackRepeating
+{
+public:
+	OnIdleCallbackRepeating(bool_func_t callable):
+		mCallable(callable)
+	{
+	}
+	// Will keep getting called until the callable returns true.
+	static void onIdle(void *data)
+	{
+		OnIdleCallbackRepeating* self = reinterpret_cast<OnIdleCallbackRepeating*>(data);
+		bool done = self->call();
+		if (done)
+		{
+			gIdleCallbacks.deleteFunction(onIdle, data);
+			delete self;
+		}
+	}
+	bool call()
+	{
+		return mCallable();
+	}
+private:
+	bool_func_t mCallable;
+};
+
+void doOnIdleRepeating(bool_func_t callable)
+{
+	OnIdleCallbackRepeating* cb_functor = new OnIdleCallbackRepeating(callable);
+	gIdleCallbacks.addFunction(&OnIdleCallbackRepeating::onIdle,cb_functor);
+}
+
 #ifdef _DEBUG
 
 void test1(void *data)