54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
/*
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* Copyright 2002, Log4cpp Project. All rights reserved.
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*
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* See the COPYING file for the terms of usage and distribution.
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*/
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#include "PortabilityImpl.hh"
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#include <log4cpp/BufferingAppender.hh>
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#include <algorithm>
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#include <sstream>
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#include <memory>
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namespace log4cpp
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{
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BufferingAppender::BufferingAppender(const std::string name, unsigned long max_size,
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std::auto_ptr<Appender> sink, std::auto_ptr<TriggeringEventEvaluator> evaluator)
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:LayoutAppender(name), max_size_(max_size), sink_(sink), evaluator_(evaluator), lossy_(false)
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{
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max_size_ = (max)(1UL, max_size_);
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}
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void BufferingAppender::_append(const LoggingEvent& event)
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{
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if (queue_.size() == max_size_)
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if (lossy_)
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queue_.pop_back();
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else
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dump();
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queue_.push_front(event);
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if (evaluator_->eval(event))
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{
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dump();
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queue_.clear();
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}
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}
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static const std::string EMPTY;
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void BufferingAppender::dump()
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{
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Layout& layout = _getLayout();
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std::ostringstream s;
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// Solaris 10 CC can't work with const_reverse_iterator
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for(queue_t::reverse_iterator i = queue_.rbegin(), last = queue_.rend(); i != last; ++i)
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s << layout.format(*i);
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LoggingEvent event(EMPTY, s.str(), EMPTY, Priority::NOTSET);
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sink_->doAppend(event);
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}
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}
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