64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/**
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* @file lllivefile.h
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* @brief Automatically reloads a file whenever it changes or is removed.
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*
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* $LicenseInfo:firstyear=2006&license=viewergpl$
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*
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* Copyright (c) 2006-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_LLLIVEFILE_H
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#define LL_LLLIVEFILE_H
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const F32 configFileRefreshRate = 5.0; // seconds
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class LLLiveFile
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{
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public:
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LLLiveFile(const std::string &filename, const F32 refresh_period = 5.f);
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virtual ~LLLiveFile();
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bool checkAndReload();
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// Returns true if the file changed in any way
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// Call this before using anything that was read & cached from the file
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std::string filename() const;
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void addToEventTimer();
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// Normally, just calling checkAndReload() is enough. In some cases
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// though, you may need to let the live file periodically check itself.
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protected:
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virtual void loadFile() = 0; // Implement this to load your file if it changed
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private:
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class Impl;
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Impl& impl;
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};
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#endif //LL_LLLIVEFILE_H
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