91 lines
2.6 KiB
C++
91 lines
2.6 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 report
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*/
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/**
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* @file chain.h
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* @author John Wiegley
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*
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* @ingroup report
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*/
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#ifndef _CHAIN_H
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#define _CHAIN_H
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#include "utils.h"
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namespace ledger {
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class post_t;
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class account_t;
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template <typename T>
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struct item_handler : public noncopyable
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{
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shared_ptr<item_handler> handler;
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public:
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item_handler() {
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TRACE_CTOR(item_handler, "");
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}
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item_handler(shared_ptr<item_handler> _handler) : handler(_handler) {
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TRACE_CTOR(item_handler, "shared_ptr<item_handler>");
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}
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virtual ~item_handler() {
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TRACE_DTOR(item_handler);
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}
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virtual void flush() {
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if (handler.get())
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handler->flush();
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}
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virtual void operator()(T& item) {
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if (handler.get()) {
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check_for_signal();
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(*handler.get())(item);
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}
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}
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};
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typedef shared_ptr<item_handler<post_t> > post_handler_ptr;
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typedef shared_ptr<item_handler<account_t> > acct_handler_ptr;
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class report_t;
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post_handler_ptr
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chain_post_handlers(report_t& report,
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post_handler_ptr base_handler,
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bool only_preliminaries = false);
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} // namespace ledger
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#endif // _CHAIN_H
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