90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
/*
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* Copyright (c) 2003-2009, John Wiegley. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of New Artisans LLC nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @addtogroup util
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*/
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/**
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* @file hooks.h
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* @author John Wiegley
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*
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* @ingroup util
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*
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* @brief Brief
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*
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* Long.
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*/
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#ifndef _HOOKS_H
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#define _HOOKS_H
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/**
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* @brief Brief
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*
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* Long.
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*/
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template <typename T, typename Data>
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class hooks_t : public boost::noncopyable
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{
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public:
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typedef boost::function<bool (Data&, bool)> function_t;
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protected:
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std::list<T *> list;
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public:
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hooks_t() {
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TRACE_CTOR(hooks_t, "");
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}
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~hooks_t() throw() {
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TRACE_DTOR(hooks_t);
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}
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void add_hook(T * func, const bool prepend = false) {
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if (prepend)
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list.push_front(func);
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else
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list.push_back(func);
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}
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void remove_hook(T * func) {
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list.remove(func);
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}
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bool run_hooks(Data& item, bool post) {
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foreach (T * func, list)
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if (! (*func)(item, post))
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return false;
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return true;
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}
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};
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#endif // _HOOKS_H
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