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<hr><h1>SupplierAdmin.cc</h1><a href="a00136.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">// Package : omniEvents</font>
00002 <font class="comment">// SupplierAdmin.h Created : 2003/12/04</font>
00003 <font class="comment">// Author : Alex Tingle</font>
00004 <font class="comment">//</font>
00005 <font class="comment">// Copyright (C) 2003 Alex Tingle.</font>
00006 <font class="comment">//</font>
00007 <font class="comment">// This file is part of the omniEvents application.</font>
00008 <font class="comment">//</font>
00009 <font class="comment">// omniEvents is free software; you can redistribute it and/or</font>
00010 <font class="comment">// modify it under the terms of the GNU Lesser General Public</font>
00011 <font class="comment">// License as published by the Free Software Foundation; either</font>
00012 <font class="comment">// version 2.1 of the License, or (at your option) any later version.</font>
00013 <font class="comment">//</font>
00014 <font class="comment">// omniEvents is distributed in the hope that it will be useful,</font>
00015 <font class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00016 <font class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00017 <font class="comment">// Lesser General Public License for more details.</font>
00018 <font class="comment">//</font>
00019 <font class="comment">// You should have received a copy of the GNU Lesser General Public</font>
00020 <font class="comment">// License along with this library; if not, write to the Free Software</font>
00021 <font class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</font>
00022 <font class="comment">//</font>
00023
00024 <font class="preprocessor">#include "<a class="code" href="a00137.html">SupplierAdmin.h</a>"</font>
00025
00026 <font class="preprocessor">#include "<a class="code" href="a00093.html">EventChannel.h</a>"</font>
00027 <font class="preprocessor">#include "<a class="code" href="a00125.html">ProxyPushConsumer.h</a>"</font>
00028 <font class="preprocessor">#include "<a class="code" href="a00121.html">ProxyPullConsumer.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="a00115.html">Orb.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="a00117.html">PersistNode.h</a>"</font>
00031
<a name="l00032"></a><a class="code" href="a00136.html#a0">00032</a> <font class="preprocessor">#define MILLION 1000000</font>
<a name="l00033"></a><a class="code" href="a00136.html#a1">00033</a> <font class="preprocessor"></font><font class="preprocessor">#define BILLION 1000000000</font>
00034 <font class="preprocessor"></font>
00035 <font class="keyword">namespace </font>OmniEvents {
00036
00037 CosEventChannelAdmin::ProxyPushConsumer_ptr
<a name="l00038"></a><a class="code" href="a00076.html#a0">00038</a> SupplierAdmin_i::obtain_push_consumer()
00039 {
00040 <font class="keywordflow">return</font> <a class="code" href="a00076.html#o1">_pushConsumer</a>-><a class="code" href="a00067.html#a6">createObject</a>();
00041 }
00042
00043
00044 CosEventChannelAdmin::ProxyPullConsumer_ptr
<a name="l00045"></a><a class="code" href="a00076.html#a1">00045</a> SupplierAdmin_i::obtain_pull_consumer()
00046 {
00047 <font class="keywordflow">if</font>(!<a class="code" href="a00076.html#o2">_pullConsumer</a>)
00048 <a class="code" href="a00076.html#o2">_pullConsumer</a>=<font class="keyword">new</font> <a class="code" href="a00064.html">ProxyPullConsumerManager</a>(<a class="code" href="a00073.html#n0">_poa</a>,<a class="code" href="a00076.html#o3">_queue</a>);
00049 <font class="keywordflow">return</font> <a class="code" href="a00076.html#o2">_pullConsumer</a>-><a class="code" href="a00064.html#a3">createObject</a>();
00050 }
00051
00052
<a name="l00053"></a><a class="code" href="a00076.html#a2">00053</a> SupplierAdmin_i::SupplierAdmin_i(
00054 <font class="keyword">const</font> <a class="code" href="a00046.html">EventChannel_i</a>& channel,
00055 PortableServer::POA_ptr poa
00056 )
00057 : <a class="code" href="a00073.html">Servant</a>(poa),
00058 _channel(channel),
00059 _pushConsumer(NULL),
00060 _pullConsumer(NULL),
00061 _queue(),
00062 _nextPull(0,0)
00063 {
00064 <font class="comment">// Initialise _nextPull. Only set it if the cycle period is LESS than the</font>
00065 <font class="comment">// pull retry period - otherwise just pull every cycle.</font>
00066 <font class="keywordflow">if</font>(<a class="code" href="a00076.html#o0">_channel</a>.<a class="code" href="a00046.html#a12">pullRetryPeriod_ms</a>() > (<a class="code" href="a00076.html#o0">_channel</a>.<a class="code" href="a00046.html#a15">cyclePeriod_ns</a>()/<a class="code" href="a00136.html#a0">MILLION</a>))
00067 {
00068 omni_thread::get_time(&(<a class="code" href="a00076.html#o4">_nextPull</a>.first),&(<a class="code" href="a00076.html#o4">_nextPull</a>.second));
00069 }
00070
00071 <font class="comment">// Always create the ProxyPushConsumer_i default servant. This allows</font>
00072 <font class="comment">// lazy clients to connect suppliers without having to go through the</font>
00073 <font class="comment">// proper procedure - they can make up an appropriate ObjectId, call push()</font>
00074 <font class="comment">// and it will just work (TM).</font>
00075 <font class="comment">// Note: A SupplierAdmin_i is always created by the EventChannel to allow this</font>
00076 <font class="comment">// behaviour.</font>
00077 <a class="code" href="a00076.html#o1">_pushConsumer</a>=<font class="keyword">new</font> <a class="code" href="a00067.html">ProxyPushConsumer_i</a>(<a class="code" href="a00073.html#n0">_poa</a>,<a class="code" href="a00076.html#o3">_queue</a>,<a class="code" href="a00076.html#o0">_channel</a>.<a class="code" href="a00046.html#a10">consumerAdmin</a>());
00078
00079 <a class="code" href="a00073.html#b1">activateObjectWithId</a>(<font class="stringliteral">"SupplierAdmin"</font>);
00080 _remove_ref();
00081 }
00082
00083
<a name="l00084"></a><a class="code" href="a00076.html#a3">00084</a> SupplierAdmin_i::~SupplierAdmin_i()
00085 {
00086 <font class="keywordflow">if</font>(_pushConsumer)
00087 {
00088 <font class="keyword">delete</font> <a class="code" href="a00076.html#o1">_pushConsumer</a>;
00089 <a class="code" href="a00076.html#o1">_pushConsumer</a>=NULL;
00090 }
00091 <font class="keywordflow">for</font>(list<CORBA::Any*>::iterator i=<a class="code" href="a00076.html#o3">_queue</a>.begin(); i!=<a class="code" href="a00076.html#o3">_queue</a>.end(); ++i)
00092 <font class="keyword">delete</font> *i;
00093 <a class="code" href="a00115.html#a2">DB</a>(20,<font class="stringliteral">"~SupplierAdmin_i()"</font>)
00094 }
00095
00096
<a name="l00097"></a><a class="code" href="a00076.html#a4">00097</a> <font class="keywordtype">void</font> SupplierAdmin_i::collect(list<CORBA::Any*>& events)
00098 {
00099 <font class="keywordflow">if</font>(_pullConsumer)
00100 {
00101 <font class="keywordflow">if</font>(<a class="code" href="a00076.html#o4">_nextPull</a>.first)
00102 {
00103 <font class="comment">// Only trigger the ProxyPullConsumer if `pullRetry' ms have passed.</font>
00104 pair<unsigned long,unsigned long> now;
00105 omni_thread::get_time(&(now.first),&(now.second));
00106 <font class="keywordflow">if</font>(now>=<a class="code" href="a00076.html#o4">_nextPull</a>)
00107 {
00108 <a class="code" href="a00076.html#o2">_pullConsumer</a>-><a class="code" href="a00064.html#a4">trigger</a>();
00109 CORBA::ULong p =<a class="code" href="a00076.html#o0">_channel</a>.<a class="code" href="a00046.html#a12">pullRetryPeriod_ms</a>();
00110 <font class="keywordflow">do</font>{
00111 <a class="code" href="a00076.html#o4">_nextPull</a>.second += (p%1000)*<a class="code" href="a00136.html#a0">MILLION</a>; <font class="comment">// nsec</font>
00112 <a class="code" href="a00076.html#o4">_nextPull</a>.first += p/1000 + <a class="code" href="a00076.html#o4">_nextPull</a>.second/<a class="code" href="a00136.html#a1">BILLION</a>; <font class="comment">// sec</font>
00113 <a class="code" href="a00076.html#o4">_nextPull</a>.second %= <a class="code" href="a00136.html#a1">BILLION</a>; <font class="comment">// nsec</font>
00114 } <font class="keywordflow">while</font>(now>=<a class="code" href="a00076.html#o4">_nextPull</a>);
00115 }
00116 }
00117 <font class="keywordflow">else</font>
00118 {
00119 <font class="comment">// Always trigger the ProxyPullConsumer.</font>
00120 <a class="code" href="a00076.html#o2">_pullConsumer</a>-><a class="code" href="a00064.html#a4">trigger</a>();
00121 }
00122 }
00123 <a class="code" href="a00076.html#o1">_pushConsumer</a>-><a class="code" href="a00067.html#a5">trigger</a>();
00124 <font class="comment">// Pick up events from both pull & push consumers.</font>
00125 events=<a class="code" href="a00076.html#o3">_queue</a>;
00126 <a class="code" href="a00076.html#o3">_queue</a>.clear();
00127 }
00128
00129
<a name="l00130"></a><a class="code" href="a00076.html#a5">00130</a> <font class="keywordtype">void</font> SupplierAdmin_i::disconnect()
00131 {
00132 <font class="keywordflow">if</font>(_pushConsumer)
00133 <a class="code" href="a00076.html#o1">_pushConsumer</a>-><a class="code" href="a00067.html#a7">disconnect</a>();
00134 <font class="keywordflow">if</font>(_pullConsumer)
00135 <a class="code" href="a00076.html#o2">_pullConsumer</a>-><a class="code" href="a00064.html#a5">disconnect</a>();
00136 }
00137
00138
<a name="l00139"></a><a class="code" href="a00076.html#a6">00139</a> <font class="keywordtype">void</font> SupplierAdmin_i::reincarnate(<font class="keyword">const</font> <a class="code" href="a00060.html">PersistNode</a>& node)
00140 {
00141 <font class="comment">// Build Push Consumer proxies</font>
00142 <a class="code" href="a00060.html">PersistNode</a>* pushcNode =node.<a class="code" href="a00060.html#a13">child</a>(<font class="stringliteral">"ProxyPushConsumer"</font>);
00143 <font class="keywordflow">if</font>(pushcNode && !pushcNode-><a class="code" href="a00060.html#m0">_child</a>.empty())
00144 {
00145 assert(<a class="code" href="a00076.html#o1">_pushConsumer</a>!=NULL);
00146 <a class="code" href="a00076.html#o1">_pushConsumer</a>-><a class="code" href="a00067.html#a8">reincarnate</a>(*pushcNode);
00147 }
00148
00149 <font class="comment">// Build Pull Consumer proxies</font>
00150 <a class="code" href="a00060.html">PersistNode</a>* pullcNode =node.<a class="code" href="a00060.html#a13">child</a>(<font class="stringliteral">"ProxyPullConsumer"</font>);
00151 <font class="keywordflow">if</font>(pullcNode && !pullcNode-><a class="code" href="a00060.html#m0">_child</a>.empty())
00152 {
00153 <font class="keywordflow">if</font>(!<a class="code" href="a00076.html#o2">_pullConsumer</a>)
00154 <a class="code" href="a00076.html#o2">_pullConsumer</a>=<font class="keyword">new</font> <a class="code" href="a00064.html">ProxyPullConsumerManager</a>(<a class="code" href="a00073.html#n0">_poa</a>,<a class="code" href="a00076.html#o3">_queue</a>);
00155 <a class="code" href="a00076.html#o2">_pullConsumer</a>-><a class="code" href="a00062.html#a1">reincarnate</a>(*pullcNode);
00156 }
00157 }
00158
00159
<a name="l00160"></a><a class="code" href="a00076.html#a7">00160</a> <font class="keywordtype">void</font> SupplierAdmin_i::output(ostream& os)
00161 {
00162 <font class="keywordflow">if</font>(_pushConsumer)
00163 <a class="code" href="a00076.html#o1">_pushConsumer</a>-><a class="code" href="a00067.html#a9">output</a>(os);
00164 <font class="keywordflow">if</font>(_pullConsumer)
00165 <a class="code" href="a00076.html#o2">_pullConsumer</a>-><a class="code" href="a00062.html#a2">output</a>(os);
00166 }
00167
00168
00169 }; <font class="comment">// end namespace OmniEvents</font>
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