Imported existing code

indra/newview/llcallbacklist.cpp

@@ -0,0 +1,197 @@
+/** 
+ * @file llcallbacklist.cpp
+ * @brief A simple list of callback functions to call.
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * 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
+ * 
+ * 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
+ * 
+ * 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.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llcallbacklist.h"
+
+// Library includes
+#include "llerror.h"
+
+
+//
+// Globals
+//
+LLCallbackList gIdleCallbacks;
+
+//
+// Member functions
+//
+
+LLCallbackList::LLCallbackList()
+{
+	// nothing
+}
+
+LLCallbackList::~LLCallbackList()
+{
+}
+
+
+void LLCallbackList::addFunction( callback_t func, void *data)
+{
+	if (!func)
+	{
+		llerrs << "LLCallbackList::addFunction - function is NULL" << llendl;
+		return;
+	}
+
+	// only add one callback per func/data pair
+	callback_pair_t t(func, data);
+	callback_list_t::iterator iter = std::find(mCallbackList.begin(), mCallbackList.end(), t);
+	if (iter == mCallbackList.end())
+	{
+		mCallbackList.push_back(t);
+	}
+}
+
+
+BOOL LLCallbackList::containsFunction( callback_t func, void *data)
+{
+	callback_pair_t t(func, data);
+	callback_list_t::iterator iter = std::find(mCallbackList.begin(), mCallbackList.end(), t);
+	if (iter != mCallbackList.end())
+	{
+		return TRUE;
+	}
+	else
+	{
+		return FALSE;
+	}
+}
+
+
+BOOL LLCallbackList::deleteFunction( callback_t func, void *data)
+{
+	callback_pair_t t(func, data);
+	callback_list_t::iterator iter = std::find(mCallbackList.begin(), mCallbackList.end(), t);
+	if (iter != mCallbackList.end())
+	{
+		mCallbackList.erase(iter);
+		return TRUE;
+	}
+	else
+	{
+		return FALSE;
+	}
+}
+
+
+void LLCallbackList::deleteAllFunctions()
+{
+	mCallbackList.clear();
+}
+
+
+void LLCallbackList::callFunctions()
+{
+	for (callback_list_t::iterator iter = mCallbackList.begin(); iter != mCallbackList.end();  )
+	{
+		callback_list_t::iterator curiter = iter++;
+		curiter->first(curiter->second);
+	}
+}
+
+#ifdef _DEBUG
+
+void test1(void *data)
+{
+	S32 *s32_data = (S32 *)data;
+	llinfos << "testfunc1 " << *s32_data << llendl;
+}
+
+
+void test2(void *data)
+{
+	S32 *s32_data = (S32 *)data;
+	llinfos << "testfunc2 " << *s32_data << llendl;
+}
+
+
+void
+LLCallbackList::test()
+{
+	S32 a = 1;
+	S32 b = 2;
+	LLCallbackList *list = new LLCallbackList;
+
+	llinfos << "Testing LLCallbackList" << llendl;
+
+	if (!list->deleteFunction(NULL))
+	{
+		llinfos << "passed 1" << llendl;
+	}
+	else
+	{
+		llinfos << "error, removed function from empty list" << llendl;
+	}
+
+	// llinfos << "This should crash" << llendl;
+	// list->addFunction(NULL);
+
+	list->addFunction(&test1, &a);
+	list->addFunction(&test1, &a);
+
+	llinfos << "Expect: test1 1, test1 1" << llendl;
+	list->callFunctions();
+
+	list->addFunction(&test1, &b);
+	list->addFunction(&test2, &b);
+
+	llinfos << "Expect: test1 1, test1 1, test1 2, test2 2" << llendl;
+	list->callFunctions();
+
+	if (list->deleteFunction(&test1, &b))
+	{
+		llinfos << "passed 3" << llendl;
+	}
+	else
+	{
+		llinfos << "error removing function" << llendl;
+	}
+
+	llinfos << "Expect: test1 1, test1 1, test2 2" << llendl;
+	list->callFunctions();
+
+	list->deleteAllFunctions();
+
+	llinfos << "Expect nothing" << llendl;
+	list->callFunctions();
+
+	llinfos << "nothing :-)" << llendl;
+
+	delete list;
+
+	llinfos << "test complete" << llendl;
+}
+
+#endif  // _DEBUG