73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
/**
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* @file llcallbacklist.h
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* @brief A simple list of callback functions to call.
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_LLCALLBACKLIST_H
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#define LL_LLCALLBACKLIST_H
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#include "llstl.h"
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class LLCallbackList
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{
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public:
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typedef void (*callback_t)(void*);
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LLCallbackList();
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~LLCallbackList();
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void addFunction( callback_t func, void *data = NULL ); // register a callback, which will be called as func(data)
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BOOL containsFunction( callback_t func, void *data = NULL ); // true if list already contains the function/data pair
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BOOL deleteFunction( callback_t func, void *data = NULL ); // removes the first instance of this function/data pair from the list, false if not found
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void callFunctions(); // calls all functions
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void deleteAllFunctions();
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static void test();
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protected:
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// Use a list so that the callbacks are ordered in case that matters
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typedef std::pair<callback_t,void*> callback_pair_t;
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typedef std::list<callback_pair_t > callback_list_t;
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callback_list_t mCallbackList;
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};
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typedef boost::function<void ()> nullary_func_t;
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typedef boost::function<bool ()> bool_func_t;
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// Call a given callable once in idle loop.
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void doOnIdleOneTime(nullary_func_t callable);
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// Repeatedly call a callable in idle loop until it returns true.
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void doOnIdleRepeating(bool_func_t callable);
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// Call a given callable once after specified interval.
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void doAfterInterval(nullary_func_t callable, F32 seconds);
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// Call a given callable every specified number of seconds, until it returns true.
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void doPeriodically(bool_func_t callable, F32 seconds);
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extern LLCallbackList gIdleCallbacks;
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#endif
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