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<a class="qindex" href="main.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> </center>
<hr><h1>omniEventsLog.h</h1><a href="a00113.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">// -*- Mode: C++; -*-</font>
00002 <font class="comment">// Package : omniEvents</font>
00003 <font class="comment">// omniEventsLog.h Created : 1/10/99</font>
00004 <font class="comment">// Author : Paul Nader (pwn)</font>
00005 <font class="comment">//</font>
00006 <font class="comment">// Copyright (C) 1998 Paul Nader, 2004 Alex Tingle.</font>
00007 <font class="comment">//</font>
00008 <font class="comment">// This file is part of the omniEvents application.</font>
00009 <font class="comment">//</font>
00010 <font class="comment">// omniEvents is free software; you can redistribute it and/or</font>
00011 <font class="comment">// modify it under the terms of the GNU Lesser General Public</font>
00012 <font class="comment">// License as published by the Free Software Foundation; either</font>
00013 <font class="comment">// version 2.1 of the License, or (at your option) any later version.</font>
00014 <font class="comment">//</font>
00015 <font class="comment">// omniEvents is distributed in the hope that it will be useful,</font>
00016 <font class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment">// Lesser General Public License for more details.</font>
00019 <font class="comment">//</font>
00020 <font class="comment">// You should have received a copy of the GNU Lesser General Public</font>
00021 <font class="comment">// License along with this library; if not, write to the Free Software</font>
00022 <font class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</font>
00023 <font class="comment">//</font>
00024 <font class="comment">// Description:</font>
00025 <font class="comment">//</font>
00026
00027 <font class="comment">/*</font>
00028 <font class="comment"> $Log: omniEventsLog.h,v $</font>
00029 <font class="comment"> Revision 1.6.2.1 2004/11/16 21:46:11 alextingle</font>
00030 <font class="comment"> Made several methods virtual to allow users of libomniEvents to override</font>
00031 <font class="comment"> the default persistency behaviour. (Dirk O. Siebnich)</font>
00032 <font class="comment"></font>
00033 <font class="comment"> Revision 1.6 2004/09/11 23:08:39 alextingle</font>
00034 <font class="comment"> WriteLock now non-copyable.</font>
00035 <font class="comment"></font>
00036 <font class="comment"> Revision 1.5 2004/07/26 16:27:08 alextingle</font>
00037 <font class="comment"> Support for NT service on windows: main() moved into daemon.cc.</font>
00038 <font class="comment"> New (laxer) start up syntax. Port is now set with -p (not -s). There is no</font>
00039 <font class="comment"> special cold start mode.</font>
00040 <font class="comment"> More flexible naming service name option -N. (No more -K option).</font>
00041 <font class="comment"></font>
00042 <font class="comment"> Revision 1.4 2004/04/20 17:16:17 alextingle</font>
00043 <font class="comment"> Corrected openOfstream() arg name/comments.</font>
00044 <font class="comment"></font>
00045 <font class="comment"> Revision 1.3 2004/03/28 01:03:58 alextingle</font>
00046 <font class="comment"> Refactored class omniEventsLog to allow for more EventChannelFactory parameters.\nNew omniEvents params: -v, -a (alternate endPoint).</font>
00047 <font class="comment"></font>
00048 <font class="comment"> Revision 1.2 2004/01/11 16:57:26 alextingle</font>
00049 <font class="comment"> New persistancy log file format, implemented by PersistNode.h/cc. The new format enables new nodes to be added and old ones erased by appending a single line to the file, rather than by re-persisting the whole application. This is much more efficient when lots of proxies are being created all at once. It's also a much simpler solution, with far fewer lines of code.</font>
00050 <font class="comment"></font>
00051 <font class="comment"> Revision 1.1 2003/12/21 16:19:49 alextingle</font>
00052 <font class="comment"> Moved into 'src' directory as part of the change to POA implementation.</font>
00053 <font class="comment"></font>
00054 <font class="comment"> Revision 1.4 2003/11/14 13:54:48 alextingle</font>
00055 <font class="comment"> New output() members functions. Eliminates the need for friend ostream</font>
00056 <font class="comment"> functions that are problematic on earlier versions of Microsoft</font>
00057 <font class="comment"> VisualC++.</font>
00058 <font class="comment"></font>
00059 <font class="comment"> Revision 1.3 2003/11/03 22:35:08 alextingle</font>
00060 <font class="comment"> Removed all platform specific switches. Now uses autoconf, config.h.</font>
00061 <font class="comment"> Added private helper functions initializeFileNames(), setFilename() &</font>
00062 <font class="comment"> openOfstream() to simplify the implementation.</font>
00063 <font class="comment"> Removed member `logdir', as it's only used during object construction.</font>
00064 <font class="comment"> Renamed configuration macro LOGDIR_ENV_VAR to OMNIEVENTS_LOGDIR_ENV_VAR</font>
00065 <font class="comment"> for consistency with other configuration macros.</font>
00066 <font class="comment"></font>
00067 <font class="comment"> Revision 1.1.1.1.2.1 2002/09/28 22:20:51 shamus13</font>
00068 <font class="comment"> Added ifdefs to enable omniEvents to compile</font>
00069 <font class="comment"> with both omniORB3 and omniORB4. If __OMNIORB4__</font>
00070 <font class="comment"> is defined during compilation, omniORB4 headers</font>
00071 <font class="comment"> and command line option syntax is used, otherwise</font>
00072 <font class="comment"> fall back to omniORB3 style.</font>
00073 <font class="comment"></font>
00074 <font class="comment"> Revision 1.1.1.1 2002/09/25 19:00:32 shamus13</font>
00075 <font class="comment"> Import of OmniEvents source tree from release 2.1.1</font>
00076 <font class="comment"></font>
00077 <font class="comment"> Revision 1.3 2000/08/30 04:21:56 naderp</font>
00078 <font class="comment"> Port to omniORB 3.0.1.</font>
00079 <font class="comment"></font>
00080 <font class="comment"> Revision 1.2 2000/03/02 04:19:17 naderp</font>
00081 <font class="comment"> Passing factory by reference to init() for initialisation.</font>
00082 <font class="comment"></font>
00083 <font class="comment"> Revision 1.1 1999/11/02 13:40:56 naderp</font>
00084 <font class="comment"> Rearranged data member definitions to avoid compiler warnings during</font>
00085 <font class="comment"> initialisation.</font>
00086 <font class="comment"></font>
00087 <font class="comment"> Revision 1.0 1999/11/01 16:48:21 naderp</font>
00088 <font class="comment"> Initial revision</font>
00089 <font class="comment"></font>
00090 <font class="comment">*/</font>
00091
00092 <font class="preprocessor">#ifndef _OMNIEVENTSLOG_H_</font>
00093 <font class="preprocessor"></font><font class="preprocessor">#define _OMNIEVENTSLOG_H_</font>
00094 <font class="preprocessor"></font>
00095 <font class="preprocessor">#ifdef HAVE_CONFIG_H</font>
00096 <font class="preprocessor"></font><font class="preprocessor"># include "<a class="code" href="a00082.html">config.h</a>"</font>
00097 <font class="preprocessor">#endif</font>
00098 <font class="preprocessor"></font>
00099 <font class="preprocessor">#ifdef HAVE_IOSTREAM</font>
00100 <font class="preprocessor"></font><font class="preprocessor"># include <iostream></font>
00101 <font class="preprocessor"># include <fstream></font>
00102 <font class="preprocessor">#else</font>
00103 <font class="preprocessor"></font><font class="preprocessor"># include <iostream.h></font>
00104 <font class="preprocessor"># include <fstream.h></font>
00105 <font class="preprocessor">#endif</font>
00106 <font class="preprocessor"></font>
00107 <font class="preprocessor">#ifdef HAVE_STD_IOSTREAM</font>
00108 <font class="preprocessor"></font><font class="keyword">using</font> <font class="keyword">namespace </font>std;
00109 <font class="preprocessor">#endif</font>
00110 <font class="preprocessor"></font>
00111 <font class="preprocessor">#ifdef HAVE_OMNIORB3</font>
00112 <font class="preprocessor"></font><font class="preprocessor"># include <omniORB3/CORBA.h></font>
00113 <font class="preprocessor">#endif</font>
00114 <font class="preprocessor"></font>
00115 <font class="preprocessor">#ifdef HAVE_OMNIORB4</font>
00116 <font class="preprocessor"></font><font class="preprocessor"># include <omniORB4/CORBA.h></font>
00117 <font class="preprocessor">#endif</font>
00118 <font class="preprocessor"></font>
00119 <font class="keyword">namespace </font>OmniEvents {
00120
00121 <font class="keyword">class </font>EventChannelFactory_i;
00122 <font class="keyword">class </font>PersistNode;
00123
00124 <font class="preprocessor">#ifndef OMNIEVENTS_LOGDIR_ENV_VAR</font>
<a name="l00125"></a><a class="code" href="a00113.html#a0">00125</a> <font class="preprocessor"></font><font class="preprocessor"># define OMNIEVENTS_LOGDIR_ENV_VAR "OMNIEVENTS_LOGDIR"</font>
00126 <font class="preprocessor"></font><font class="preprocessor">#endif</font>
00127 <font class="preprocessor"></font>
<a name="l00128"></a><a class="code" href="a00056.html">00128</a> <font class="keyword">class </font><a class="code" href="a00056.html">omniEventsLog</a>
00129 {
00130 <font class="keyword">public</font>:
00131 <a class="code" href="a00056.html#a0">omniEventsLog</a>(<font class="keyword">const</font> <font class="keywordtype">char</font>* logdir=NULL);
00132 <font class="keyword">virtual</font> <a class="code" href="a00056.html#a1">~omniEventsLog</a>();
00133
00134 <font class="keywordtype">bool</font> <a class="code" href="a00056.html#a2">fileExists</a>(<font class="keyword">const</font> <font class="keywordtype">char</font>* filename) <font class="keyword">const</font>;
<a name="l00135"></a><a class="code" href="a00056.html#a3">00135</a> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="a00056.html#a3">activeFilename</a>()<font class="keyword"> const </font>{ <font class="keywordflow">return</font> <a class="code" href="a00056.html#o1">_activeFilename</a>; }
<a name="l00136"></a><a class="code" href="a00056.html#a4">00136</a> <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="a00056.html#a4">backupFilename</a>()<font class="keyword"> const </font>{ <font class="keywordflow">return</font> <a class="code" href="a00056.html#o2">_backupFilename</a>; }
00137
00142 PersistNode* <a class="code" href="a00056.html#a5">bootstrap</a>(<font class="keywordtype">int</font> port, <font class="keyword">const</font> <font class="keywordtype">char</font>* endPointNoListen);
00143
00148 <font class="keyword">virtual</font> PersistNode* <a class="code" href="a00056.html#a6">parse</a>();
00149
00153 <font class="keywordtype">void</font> <a class="code" href="a00056.html#a7">incarnateFactory</a>(PersistNode* initialState);
00154
00158 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="a00056.html#a8">runWorker</a>();
00159
<a name="l00161"></a><a class="code" href="a00056.html#a9">00161</a> <a class="code" href="a00047.html">EventChannelFactory_i</a>* <a class="code" href="a00056.html#a9">factory</a>() {<font class="keywordflow">return</font> <a class="code" href="a00056.html#o5">_factory</a>;}
00162
00167 <font class="keywordtype">void</font> <a class="code" href="a00056.html#a10">checkpoint</a>(<font class="keywordtype">void</font>);
00168
00169 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="a00056.html#a11">output</a>(ostream& os);
00170
00171 <font class="keyword">public</font>:
<a name="l00172"></a><a class="code" href="a00057.html">00172</a> <font class="keyword">class </font><a class="code" href="a00057.html">IOError</a> {};
00173
00174 <font class="keyword">protected</font>:
00175 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="a00056.html#b0">initializeFileNames</a>(<font class="keyword">const</font> <font class="keywordtype">char</font>* logdir);
00176 <font class="keywordtype">void</font> <a class="code" href="a00056.html#b1">setFilename</a>(
00177 <font class="keywordtype">char</font>*& filename,
00178 <font class="keyword">const</font> <font class="keywordtype">char</font>* logdir,
00179 <font class="keyword">const</font> <font class="keywordtype">char</font>* sep,
00180 <font class="keyword">const</font> <font class="keywordtype">char</font>* logname,
00181 <font class="keyword">const</font> <font class="keywordtype">char</font>* hostname,
00182 <font class="keyword">const</font> <font class="keywordtype">char</font>* ext
00183 );
00184 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="a00056.html#b2">openOfstream</a>(
00185 ofstream& s,
00186 <font class="keyword">const</font> <font class="keywordtype">char</font>* filename,
00187 <font class="keywordtype">int</font> flags=0,
00188 <font class="keywordtype">int</font>* fd=NULL
00189 );
00190
00191 <font class="keyword">private</font>:
00192 <font class="keyword">static</font> <a class="code" href="a00056.html#a0">omniEventsLog</a>* <a class="code" href="a00056.html#r0">theLog</a>;
00193
<a name="l00194"></a><a class="code" href="a00056.html#o0">00194</a> ofstream <a class="code" href="a00056.html#o0">_logstream</a>;
<a name="l00195"></a><a class="code" href="a00056.html#o1">00195</a> <font class="keywordtype">char</font>* <a class="code" href="a00056.html#o1">_activeFilename</a>;
<a name="l00196"></a><a class="code" href="a00056.html#o2">00196</a> <font class="keywordtype">char</font>* <a class="code" href="a00056.html#o2">_backupFilename</a>;
<a name="l00197"></a><a class="code" href="a00056.html#o3">00197</a> <font class="keywordtype">char</font>* <a class="code" href="a00056.html#o3">_checkpointFilename</a>;
<a name="l00198"></a><a class="code" href="a00056.html#o4">00198</a> omni_thread* <a class="code" href="a00056.html#o4">_workerThread</a>;
<a name="l00199"></a><a class="code" href="a00056.html#o5">00199</a> <a class="code" href="a00047.html">EventChannelFactory_i</a>* <a class="code" href="a00056.html#o5">_factory</a>;
<a name="l00200"></a><a class="code" href="a00056.html#o6">00200</a> <font class="keywordtype">bool</font> <a class="code" href="a00056.html#o6">_checkpointNeeded</a>;
<a name="l00201"></a><a class="code" href="a00056.html#o7">00201</a> omni_mutex <a class="code" href="a00056.html#o7">_lock</a>;
00202
<a name="l00203"></a><a class="code" href="a00056.html#l0">00203</a> <font class="keyword">friend</font> <font class="keyword">class </font><a class="code" href="a00080.html">WriteLock</a>;
00204 };
00205
<a name="l00206"></a><a class="code" href="a00058.html">00206</a> <font class="keyword">class </font><a class="code" href="a00058.html">omniEventsLogWorker</a> : <font class="keyword">public</font> omni_thread
00207 {
00208 <font class="keyword">public</font>:
<a name="l00209"></a><a class="code" href="a00058.html#s0">00209</a> <font class="keyword">typedef</font> void (omniEventsLog::*<a class="code" href="a00058.html#s0">Method</a>)(void);
00210 <a class="code" href="a00058.html#c0">omniEventsLogWorker</a>(
00211 <a class="code" href="a00056.html">omniEventsLog</a>* object,
00212 <a class="code" href="a00058.html#s0">Method</a> method,
00213 priority_t priority=PRIORITY_NORMAL
00214 );
00215 <font class="keywordtype">void</font>* <a class="code" href="a00058.html#a1">run_undetached</a>(<font class="keywordtype">void</font> *);
00216 <a class="code" href="a00058.html#a2">~omniEventsLogWorker</a>();
00217 <font class="keyword">private</font>:
<a name="l00218"></a><a class="code" href="a00058.html#o0">00218</a> <a class="code" href="a00056.html">omniEventsLog</a>* <a class="code" href="a00058.html#o0">_object</a>;
<a name="l00219"></a><a class="code" href="a00058.html#o1">00219</a> <a class="code" href="a00058.html#s0">Method</a> <a class="code" href="a00058.html#o1">_method</a>;
00220 <a class="code" href="a00058.html#c0">omniEventsLogWorker</a>();
00221 };
00222
00223
<a name="l00228"></a><a class="code" href="a00080.html">00228</a> <font class="keyword">class </font><a class="code" href="a00080.html">WriteLock</a>
00229 {
00230 <font class="keyword">public</font>:
<a name="l00231"></a><a class="code" href="a00080.html#a0">00231</a> <a class="code" href="a00080.html#a0">WriteLock</a>():
00232 <a class="code" href="a00080.html#m0">os</a>(<a class="code" href="a00056.html">omniEventsLog</a>::theLog->_logstream),
00233 <a class="code" href="a00080.html#o0">l</a>(<a class="code" href="a00056.html">omniEventsLog</a>::theLog->_lock)
00234 {}
<a name="l00235"></a><a class="code" href="a00080.html#a1">00235</a> <a class="code" href="a00080.html#a1">~WriteLock</a>()
00236 {
00237 <a class="code" href="a00080.html#m0">os</a>.flush();
00238 omniEventsLog::theLog->_checkpointNeeded=<font class="keyword">true</font>;
00239 }
<a name="l00240"></a><a class="code" href="a00080.html#m0">00240</a> ostream& <a class="code" href="a00080.html#m0">os</a>;
00241 <font class="keyword">private</font>:
<a name="l00242"></a><a class="code" href="a00080.html#o0">00242</a> omni_mutex_lock <a class="code" href="a00080.html#o0">l</a>;
00243 <a class="code" href="a00080.html#a0">WriteLock</a>(<font class="keyword">const</font> <a class="code" href="a00080.html">WriteLock</a>&);
00244 };
00245
00246 }; <font class="comment">// end namespace OmniEvents</font>
00247
00248 <font class="preprocessor">#endif </font><font class="comment">/* _OMNIEVENTSLOG_H_ */</font>
</pre></div><hr><address align="right"><small>Generated on Fri Nov 19 17:42:20 2004 for OmniEvents by
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