log4cplus  1.1.0
asyncappender.h
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00001 // -*- C++ -*-
00002 // Module:  Log4cplus
00003 // File:    asyncappender.h
00004 // Created: 1/2009
00005 // Author:  Vaclav Haisman  
00006 //
00007 //
00008 //  Copyright (C) 2009-2010, Vaclav Haisman. All rights reserved.
00009 //  
00010 //  Redistribution and use in source and binary forms, with or without modifica-
00011 //  tion, are permitted provided that the following conditions are met:
00012 //  
00013 //  1. Redistributions of  source code must  retain the above copyright  notice,
00014 //     this list of conditions and the following disclaimer.
00015 //  
00016 //  2. Redistributions in binary form must reproduce the above copyright notice,
00017 //     this list of conditions and the following disclaimer in the documentation
00018 //     and/or other materials provided with the distribution.
00019 //  
00020 //  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
00021 //  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
00022 //  FITNESS  FOR A PARTICULAR  PURPOSE ARE  DISCLAIMED.  IN NO  EVENT SHALL  THE
00023 //  APACHE SOFTWARE  FOUNDATION  OR ITS CONTRIBUTORS  BE LIABLE FOR  ANY DIRECT,
00024 //  INDIRECT, INCIDENTAL, SPECIAL,  EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLU-
00025 //  DING, BUT NOT LIMITED TO, PROCUREMENT  OF SUBSTITUTE GOODS OR SERVICES; LOSS
00026 //  OF USE, DATA, OR  PROFITS; OR BUSINESS  INTERRUPTION)  HOWEVER CAUSED AND ON
00027 //  ANY  THEORY OF LIABILITY,  WHETHER  IN CONTRACT,  STRICT LIABILITY,  OR TORT
00028 //  (INCLUDING  NEGLIGENCE OR  OTHERWISE) ARISING IN  ANY WAY OUT OF THE  USE OF
00029 //  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00030    
00031  
00032 //
00033 
00036 #ifndef LOG4CPLUS_ASYNCAPPENDER_H
00037 #define LOG4CPLUS_ASYNCAPPENDER_H
00038 
00039 #include <log4cplus/config.hxx>
00040 
00041 #if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
00042 #pragma once
00043 #endif
00044 
00045 #ifndef LOG4CPLUS_SINGLE_THREADED
00046 
00047 #include <log4cplus/helpers/queue.h>
00048 #include <log4cplus/appender.h>
00049 #include <log4cplus/thread/threads.h>
00050 #include <log4cplus/helpers/appenderattachableimpl.h>
00051 
00052 
00053 namespace log4cplus
00054 {
00055 
00056 
00057 class LOG4CPLUS_EXPORT AsyncAppender
00058     : public Appender
00059     , public helpers::AppenderAttachableImpl
00060 {
00061 public:
00062     AsyncAppender (SharedAppenderPtr const & app, unsigned max_len);
00063     AsyncAppender (helpers::Properties const &);
00064     virtual ~AsyncAppender ();
00065 
00066     virtual void close ();
00067 
00068 protected:
00069     virtual void append (spi::InternalLoggingEvent const &);
00070 
00071     void init_queue_thread (unsigned);
00072 
00073     thread::AbstractThreadPtr queue_thread;
00074     thread::QueuePtr queue;
00075 
00076 private:
00077     AsyncAppender (AsyncAppender const &);
00078     AsyncAppender & operator = (AsyncAppender const &);
00079 };
00080 
00081 
00082 typedef helpers::SharedObjectPtr<AsyncAppender> AsyncAppenderPtr;
00083 
00084 
00085 } // namespace log4cplus
00086 
00087 
00088 #endif // LOG4CPLUS_SINGLE_THREADED
00089 
00090 #endif // LOG4CPLUS_ASYNCAPPENDER_H