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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>DMTL: file_storage_manager.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.7 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><h1>file_storage_manager.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span><a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 2005 M.J. Zaki <zaki@cs.rpi.edu> Rensselaer Polytechnic Institute</span><a name="l00003"></a>00003 <span class="comment"> * Written by salems@cs.rpi.edu</span><a name="l00004"></a>00004 <span class="comment"> * Modifications:</span><a name="l00005"></a>00005 <span class="comment"> * added file name passing -- Zaki 7/25/06</span><a name="l00006"></a>00006 <span class="comment"> *</span><a name="l00007"></a>00007 <span class="comment"> * This program is free software; you can redistribute it and/or</span><a name="l00008"></a>00008 <span class="comment"> * modify it under the terms of the GNU General Public License</span><a name="l00009"></a>00009 <span class="comment"> * as published by the Free Software Foundation; either version 2</span><a name="l00010"></a>00010 <span class="comment"> * of the License, or (at your option) any later version.</span><a name="l00011"></a>00011 <span class="comment"> *</span><a name="l00012"></a>00012 <span class="comment"> * This program is distributed in the hope that it will be useful,</span><a name="l00013"></a>00013 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span><a name="l00014"></a>00014 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span><a name="l00015"></a>00015 <span class="comment"> * GNU General Public License for more details.</span><a name="l00016"></a>00016 <span class="comment"> *</span><a name="l00017"></a>00017 <span class="comment"> * You should have received a copy of the GNU General Public License along</span><a name="l00018"></a>00018 <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span><a name="l00019"></a>00019 <span class="comment"> * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.</span><a name="l00020"></a>00020 <span class="comment"> */</span><a name="l00021"></a>00021 <span class="preprocessor">#ifndef FILE_STORAGE_MANAGER_H</span><a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#define FILE_STORAGE_MANAGER_H</span><a name="l00023"></a>00023 <span class="preprocessor"></span><a name="l00024"></a>00024 <span class="preprocessor">#include<string></span><a name="l00025"></a>00025 <span class="preprocessor">#include<memory></span><a name="l00026"></a>00026 <span class="preprocessor">#include <ext/hash_map></span><a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="pat__fam_8h.html">pat_fam.h</a>"</span><a name="l00028"></a>00028 <span class="preprocessor">#include "pat_support.h"</span><a name="l00029"></a>00029 <span class="preprocessor">#include "generic_classes.h"</span><a name="l00030"></a>00030 <span class="preprocessor">#include "helper_funs.h"</span><a name="l00031"></a>00031 <span class="preprocessor">#include "time_tracker.h"</span><a name="l00032"></a>00032 <span class="preprocessor">#include "file_cache_manager.h"</span><a name="l00033"></a>00033 <a name="l00034"></a>00034 <span class="keyword">using namespace </span>std;<a name="l00035"></a>00035 <a name="l00036"></a>00036 <span class="preprocessor">#define FILENAME "__DMTL_file_cache.dat"</span><a name="l00037"></a>00037 <span class="preprocessor"></span><a name="l00044"></a>00044 <span class="keyword">template</span><<span class="keyword">class</span> PAT, <span class="keyword">template</span> <<span class="keyword">typename</span>> <span class="keyword">class </span>ALLOC, <span class="keyword">class </span>VAT ><a name="l00045"></a><a class="code" href="classstorage__manager_3_01PAT_00_01VAT_00_01ALLOC_00_01file__storage_01_4.html">00045</a> <span class="keyword">class </span><a class="code" href="classstorage__manager.html">storage_manager</a><PAT, VAT, ALLOC, file_storage > {<a name="l00046"></a>00046 <a name="l00047"></a>00047 <span class="keyword">typedef</span> <span class="keyword">typename</span> PAT::CC_STORAGE_TYPE C_ST;<a name="l00048"></a>00048 <span class="keyword">typedef</span> <span class="keyword">typename</span> PAT::CC_COMPARISON_FUNC C_CF;<a name="l00049"></a>00049 <a name="l00050"></a>00050 <span class="keyword">public</span>:<a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="keyword">typedef</span> <span class="keywordtype">int</span> key_type;<a name="l00053"></a>00053 <span class="comment">// typename TYPE T;</span><a name="l00054"></a>00054 <span class="keyword">typedef</span> VAT data_type;<a name="l00055"></a>00055 <span class="keyword">typedef</span> VAT VATT;<a name="l00056"></a>00056 <span class="comment">// This way you have designed your cache, so you can</span><a name="l00057"></a>00057 <span class="comment">// define cache manager for your caching system.</span><a name="l00058"></a>00058 <span class="comment">// Let us use a basic manager.</span><a name="l00059"></a>00059 <a name="l00060"></a>00060 <span class="keyword">typedef</span> <a class="code" href="classcache__manager.html">cache_manager<key_type, data_type></a> <a class="code" href="classcache__manager.html">cache_type</a>;<a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="keyword">typedef</span> <span class="keyword">typename</span> cache_type::size_type size_type;<a name="l00063"></a>00063 <span class="keyword">typedef</span> <a class="code" href="classpattern__support.html">pattern_support<typename PAT::MINE_PROPS></a> <a class="code" href="classpattern__support.html">PAT_SUP</a>;<a name="l00064"></a>00064 <a name="l00065"></a>00065 <a class="code" href="classstorage__manager.html">storage_manager</a>(){}<a name="l00066"></a>00066 <a name="l00067"></a>00067 <a class="code" href="classstorage__manager.html">storage_manager</a>(<span class="keyword">typename</span> cache_type::size_type C=1,<span class="keyword">const</span> <span class="keywordtype">char</span> * filename=FILENAME){<a name="l00068"></a>00068 Cache = <span class="keyword">new</span> <a class="code" href="classcache__manager.html">cache_type</a>(C, filename);<a name="l00069"></a>00069 manager_count++; <a name="l00070"></a>00070 }<a name="l00071"></a>00071 <a name="l00072"></a>00072 <span class="comment">//Destructor</span><a name="l00073"></a>00073 ~<a class="code" href="classstorage__manager.html">storage_manager</a>(){<a name="l00074"></a>00074 <span class="keywordflow">if</span>(manager_count==1){<a name="l00075"></a>00075 <span class="keyword">delete</span> Cache;<a name="l00076"></a>00076 }<a name="l00077"></a>00077 manager_count--;<a name="l00078"></a>00078 }<a name="l00079"></a>00079 <a name="l00082"></a><a class="code" href="classstorage__manager_3_01PAT_00_01VAT_00_01ALLOC_00_01file__storage_01_4.html#5f46edcf9f6fe543d97cfd8a8507964a">00082</a> size_type mem_entries()<span class="keyword"> const </span>{<a name="l00083"></a>00083 <span class="keywordflow">return</span> Cache->mem_entries();<a name="l00084"></a>00084 } <span class="comment">// no_entries</span><a name="l00085"></a>00085 <a name="l00088"></a><a class="code" href="classstorage__manager_3_01PAT_00_01VAT_00_01ALLOC_00_01file__storage_01_4.html#b3b3bafb049675144492b7a6ad7e3f05">00088</a> size_type file_entries()<span class="keyword"> const </span>{<a name="l00089"></a>00089 <span class="keywordflow">return</span> Cache->file_entries();<a name="l00090"></a>00090 } <span class="comment">// no_entries</span><a name="l00091"></a>00091 <a name="l00092"></a>00092 <span class="keywordtype">void</span> print_stats()<span class="keyword"> const</span>{<a name="l00093"></a>00093 Cache->print_stats();<a name="l00094"></a>00094 }⌨️ 快捷键说明
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