1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
<!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>OmniEvents: ProxyPullSupplier.cc Source File</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.4.3-20050530 -->
<div class="qindex"><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">Class List</a> | <a class="qindex" href="dirs.html">Directories</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">Class Members</a> | <a class="qindex" href="globals.html">File Members</a></div>
<div class="nav">
<a class="el" href="dir_000000.html">src</a></div>
<h1>ProxyPullSupplier.cc</h1><a href="a00123.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Package : omniEvents</span>
<a name="l00002"></a>00002 <span class="comment">// ProxyPullSupplier.cc Created : 2003/12/04</span>
<a name="l00003"></a>00003 <span class="comment">// Author : Alex Tingle</span>
<a name="l00004"></a>00004 <span class="comment">//</span>
<a name="l00005"></a>00005 <span class="comment">// Copyright (C) 2003-2005 Alex Tingle.</span>
<a name="l00006"></a>00006 <span class="comment">//</span>
<a name="l00007"></a>00007 <span class="comment">// This file is part of the omniEvents application.</span>
<a name="l00008"></a>00008 <span class="comment">//</span>
<a name="l00009"></a>00009 <span class="comment">// omniEvents is free software; you can redistribute it and/or</span>
<a name="l00010"></a>00010 <span class="comment">// modify it under the terms of the GNU Lesser General Public</span>
<a name="l00011"></a>00011 <span class="comment">// License as published by the Free Software Foundation; either</span>
<a name="l00012"></a>00012 <span class="comment">// version 2.1 of the License, or (at your option) any later version.</span>
<a name="l00013"></a>00013 <span class="comment">//</span>
<a name="l00014"></a>00014 <span class="comment">// omniEvents is distributed in the hope that it will be useful,</span>
<a name="l00015"></a>00015 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00016"></a>00016 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00017"></a>00017 <span class="comment">// Lesser General Public License for more details.</span>
<a name="l00018"></a>00018 <span class="comment">//</span>
<a name="l00019"></a>00019 <span class="comment">// You should have received a copy of the GNU Lesser General Public</span>
<a name="l00020"></a>00020 <span class="comment">// License along with this library; if not, write to the Free Software</span>
<a name="l00021"></a>00021 <span class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<a name="l00022"></a>00022 <span class="comment">//</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="a00124.html">ProxyPullSupplier.h</a>"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="a00094.html">EventChannel.h</a>"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="a00116.html">Orb.h</a>"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="a00114.html">omniEventsLog.h</a>"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include "<a class="code" href="a00118.html">PersistNode.h</a>"</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <assert.h></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="keyword">namespace </span>OmniEvents {
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="comment">//</span>
<a name="l00034"></a>00034 <span class="comment">// ProxyPullSupplierManager</span>
<a name="l00035"></a>00035 <span class="comment">//</span>
<a name="l00036"></a>00036
<a name="l00037"></a><a class="code" href="a00066.html#a0">00037</a> PortableServer::Servant <a class="code" href="a00066.html#a0">ProxyPullSupplierManager::incarnate</a>(
<a name="l00038"></a>00038 <span class="keyword">const</span> PortableServer::ObjectId& oid,
<a name="l00039"></a>00039 PortableServer::POA_ptr poa
<a name="l00040"></a>00040 )
<a name="l00041"></a>00041 {
<a name="l00042"></a>00042 <span class="comment">// Evict the oldest proxy servant, if we have reached the maximum number.</span>
<a name="l00043"></a>00043 <span class="keywordflow">if</span>(<a class="code" href="a00062.html#p0">_servants</a>.size()>=<a class="code" href="a00066.html#r0">_channel</a>.<a class="code" href="a00046.html#a17">maxNumProxies</a>())
<a name="l00044"></a>00044 {
<a name="l00045"></a>00045 <a class="code" href="a00065.html">ProxyPullSupplier_i</a>* oldest =NULL;
<a name="l00046"></a>00046 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> age =0;
<a name="l00047"></a>00047 <span class="keywordflow">for</span>(set<Proxy*>::iterator i=<a class="code" href="a00062.html#p0">_servants</a>.begin(); i!=<a class="code" href="a00062.html#p0">_servants</a>.end(); ++i)
<a name="l00048"></a>00048 <span class="keywordflow">if</span>(!oldest || dynamic_cast<ProxyPullSupplier_i*>(*i)-><a class="code" href="a00065.html#a8">timestamp</a>()<age)
<a name="l00049"></a>00049 {
<a name="l00050"></a>00050 oldest=dynamic_cast<ProxyPullSupplier_i*>(*i);
<a name="l00051"></a>00051 age=oldest-><a class="code" href="a00065.html#a8">timestamp</a>();
<a name="l00052"></a>00052 }
<a name="l00053"></a>00053 <a class="code" href="a00116.html#a2">DB</a>(5,<span class="stringliteral">"Evicting oldest ProxyPullSupplier to make space for a new one"</span>)
<a name="l00054"></a>00054 <span class="keywordflow">try</span>{ oldest-><a class="code" href="a00065.html#a1">disconnect_pull_supplier</a>(); }<span class="keywordflow">catch</span>(CORBA::OBJECT_NOT_EXIST&){}
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056 <span class="comment">// Make a new servant.</span>
<a name="l00057"></a>00057 <a class="code" href="a00065.html">ProxyPullSupplier_i</a>* result =<span class="keyword">new</span> <a class="code" href="a00065.html">ProxyPullSupplier_i</a>(<a class="code" href="a00062.html#p1">_managedPoa</a>,<a class="code" href="a00066.html#r1">_queue</a>);
<a name="l00058"></a>00058 <a class="code" href="a00062.html#p0">_servants</a>.insert(result);
<a name="l00059"></a>00059 <span class="keywordflow">return</span> result;
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061
<a name="l00062"></a><a class="code" href="a00066.html#a1">00062</a> <a class="code" href="a00066.html#a1">ProxyPullSupplierManager::ProxyPullSupplierManager</a>(
<a name="l00063"></a>00063 <span class="keyword">const</span> <a class="code" href="a00046.html">EventChannel_i</a>& channel,
<a name="l00064"></a>00064 PortableServer::POA_ptr parentPoa,
<a name="l00065"></a>00065 <a class="code" href="a00049.html">EventQueue</a>& q
<a name="l00066"></a>00066 )
<a name="l00067"></a>00067 : <a class="code" href="a00062.html">ProxyManager</a>(parentPoa),
<a name="l00068"></a>00068 _queue(q),
<a name="l00069"></a>00069 _channel(channel)
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071 <a class="code" href="a00062.html#b2">ProxyManager::activate</a>(<span class="stringliteral">"ProxyPullSupplier"</span>);
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073
<a name="l00074"></a><a class="code" href="a00066.html#a2">00074</a> <a class="code" href="a00066.html#a2">ProxyPullSupplierManager::~ProxyPullSupplierManager</a>()
<a name="l00075"></a>00075 {
<a name="l00076"></a>00076 <a class="code" href="a00116.html#a2">DB</a>(20,<span class="stringliteral">"~ProxyPullSupplierManager()"</span>)
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <a class="code" href="a00136.html#a3">OMNIEVENTS__DEBUG_REF_COUNTS__DEFN</a>(<a class="code" href="a00066.html">ProxyPullSupplierManager</a>)
<a name="l00080"></a>00080
<a name="l00081"></a>00081 CosEventChannelAdmin::ProxyPullSupplier_ptr
<a name="l00082"></a><a class="code" href="a00066.html#a3">00082</a> <a class="code" href="a00066.html">ProxyPullSupplierManager</a>::createObject()
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <span class="keywordflow">return</span> createNarrowedReference<CosEventChannelAdmin::ProxyPullSupplier>(
<a name="l00085"></a>00085 _managedPoa.in(),
<a name="l00086"></a>00086 CosEventChannelAdmin::_tc_ProxyPullSupplier->id()
<a name="l00087"></a>00087 );
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a><a class="code" href="a00066.html#a4">00090</a> <span class="keywordtype">void</span> <a class="code" href="a00066.html#a4">ProxyPullSupplierManager::disconnect</a>()
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 <span class="keywordflow">for</span>(set<Proxy*>::iterator i =<a class="code" href="a00062.html#p0">_servants</a>.begin(); i!=<a class="code" href="a00062.html#p0">_servants</a>.end(); ++i)
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094 <a class="code" href="a00065.html">ProxyPullSupplier_i</a>* pps =dynamic_cast<ProxyPullSupplier_i*>(*i);
<a name="l00095"></a>00095 <span class="comment">// We are in the EventChannel's thread.</span>
<a name="l00096"></a>00096 <span class="comment">// Make sure all calls go though the ProxyPullSupplier POA.</span>
<a name="l00097"></a>00097 CosEventChannelAdmin::ProxyPullSupplier_var ppsv =pps->_this();
<a name="l00098"></a>00098 ppsv-><a class="code" href="a00065.html#a1">disconnect_pull_supplier</a>();
<a name="l00099"></a>00099
<a name="l00100"></a>00100 }
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="comment">//</span>
<a name="l00105"></a>00105 <span class="comment">// ProxyPullSupplier_i</span>
<a name="l00106"></a>00106 <span class="comment">//</span>
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="comment">// CORBA interface methods</span>
<a name="l00109"></a>00109
<a name="l00110"></a><a class="code" href="a00065.html#a0">00110</a> <span class="keywordtype">void</span> <a class="code" href="a00065.html#a0">ProxyPullSupplier_i::connect_pull_consumer</a>(
<a name="l00111"></a>00111 CosEventComm::PullConsumer_ptr pullConsumer
<a name="l00112"></a>00112 )
<a name="l00113"></a>00113 {
<a name="l00114"></a>00114 <span class="keywordflow">if</span>(<a class="code" href="a00065.html#r1">_connected</a> || !CORBA::is_nil(<a class="code" href="a00065.html#r0">_target</a>) || !CORBA::is_nil(<a class="code" href="a00061.html#p0">_req</a>))
<a name="l00115"></a>00115 <span class="keywordflow">throw</span> CosEventChannelAdmin::AlreadyConnected();
<a name="l00116"></a>00116 <a class="code" href="a00065.html#d0">touch</a>();
<a name="l00117"></a>00117 <a class="code" href="a00065.html#r1">_connected</a>=<span class="keyword">true</span>;
<a name="l00118"></a>00118 <span class="keywordflow">if</span>(!CORBA::is_nil(pullConsumer))
<a name="l00119"></a>00119 <a class="code" href="a00065.html#r0">_target</a>=CosEventComm::PullConsumer::_duplicate(pullConsumer);
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="keywordflow">if</span>(<a class="code" href="a00056.html#e0">omniEventsLog::exists</a>())
<a name="l00122"></a>00122 {
<a name="l00123"></a>00123 <a class="code" href="a00080.html">WriteLock</a> log;
<a name="l00124"></a>00124 <a class="code" href="a00065.html#a7">output</a>(log.<a class="code" href="a00080.html#o0">os</a>);
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127
<a name="l00128"></a><a class="code" href="a00065.html#a1">00128</a> <span class="keywordtype">void</span> <a class="code" href="a00065.html#a1">ProxyPullSupplier_i::disconnect_pull_supplier</a>()
<a name="l00129"></a>00129 {
<a name="l00130"></a>00130 <a class="code" href="a00116.html#a2">DB</a>(5,<span class="stringliteral">"ProxyPullSupplier_i::disconnect_pull_supplier()"</span>);
<a name="l00131"></a>00131 <a class="code" href="a00065.html#d0">touch</a>();
<a name="l00132"></a>00132 <a class="code" href="a00061.html#b2">eraseKey</a>(<span class="stringliteral">"ConsumerAdmin/ProxyPullSupplier"</span>);
<a name="l00133"></a>00133 <a class="code" href="a00073.html#b2">deactivateObject</a>();
<a name="l00134"></a>00134 <span class="keywordflow">if</span>(!<a class="code" href="a00065.html#r1">_connected</a>)
<a name="l00135"></a>00135 {
<a name="l00136"></a>00136 <span class="keywordflow">throw</span> CORBA::OBJECT_NOT_EXIST(
<a name="l00137"></a>00137 <a class="code" href="a00116.html#a0">IFELSE_OMNIORB4</a>(omni::OBJECT_NOT_EXIST_NoMatch,0),
<a name="l00138"></a>00138 CORBA::COMPLETED_NO
<a name="l00139"></a>00139 );
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141 <span class="keywordflow">else</span> <span class="keywordflow">if</span>(!CORBA::is_nil(<a class="code" href="a00065.html#r0">_target</a>))
<a name="l00142"></a>00142 {
<a name="l00143"></a>00143 CORBA::Request_var req=<a class="code" href="a00065.html#r0">_target</a>->_request(<span class="stringliteral">"disconnect_pull_consumer"</span>);
<a name="l00144"></a>00144 <a class="code" href="a00065.html#r0">_target</a>=CosEventComm::PullConsumer::_nil();
<a name="l00145"></a>00145 req->send_deferred();
<a name="l00146"></a>00146 <a class="code" href="a00059.html#e0">Orb::inst</a>().<a class="code" href="a00059.html#a3">deferredRequest</a>(req._retn());
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148 }
<a name="l00149"></a>00149
<a name="l00150"></a><a class="code" href="a00065.html#a2">00150</a> CORBA::Any* <a class="code" href="a00065.html#a2">ProxyPullSupplier_i::pull</a>()
<a name="l00151"></a>00151 {
<a name="l00152"></a>00152 <span class="keywordflow">if</span>(!<a class="code" href="a00065.html#r1">_connected</a>)
<a name="l00153"></a>00153 <span class="keywordflow">throw</span> CosEventComm::Disconnected();
<a name="l00154"></a>00154 <a class="code" href="a00065.html#d0">touch</a>();
<a name="l00155"></a>00155 <span class="keywordflow">if</span>(<a class="code" href="a00050.html#a1">moreEvents</a>())
<a name="l00156"></a>00156 <span class="keywordflow">return</span> <span class="keyword">new</span> CORBA::Any(*<a class="code" href="a00050.html#a2">nextEvent</a>());
<a name="l00157"></a>00157 <span class="keywordflow">else</span>
<a name="l00158"></a>00158 <span class="keywordflow">throw</span> CORBA::TRANSIENT(
<a name="l00159"></a>00159 <a class="code" href="a00116.html#a0">IFELSE_OMNIORB4</a>(omni::TRANSIENT_CallTimedout,0),
<a name="l00160"></a>00160 CORBA::COMPLETED_NO
<a name="l00161"></a>00161 );
<a name="l00162"></a>00162 }
<a name="l00163"></a>00163
<a name="l00164"></a><a class="code" href="a00065.html#a3">00164</a> CORBA::Any* <a class="code" href="a00065.html#a3">ProxyPullSupplier_i::try_pull</a>(CORBA::Boolean& has_event)
<a name="l00165"></a>00165 {
<a name="l00166"></a>00166 <span class="keywordflow">if</span>(!<a class="code" href="a00065.html#r1">_connected</a>)
<a name="l00167"></a>00167 <span class="keywordflow">throw</span> CosEventComm::Disconnected();
<a name="l00168"></a>00168 <a class="code" href="a00065.html#d0">touch</a>();
<a name="l00169"></a>00169 <span class="keywordflow">if</span>(<a class="code" href="a00050.html#a1">moreEvents</a>())
<a name="l00170"></a>00170 {
<a name="l00171"></a>00171 has_event=1;
<a name="l00172"></a>00172 <span class="keywordflow">return</span> <span class="keyword">new</span> CORBA::Any(*<a class="code" href="a00050.html#a2">nextEvent</a>());
<a name="l00173"></a>00173 }
<a name="l00174"></a>00174 <span class="keywordflow">else</span>
<a name="l00175"></a>00175 {
<a name="l00176"></a>00176 has_event=0;
<a name="l00177"></a>00177 <span class="keywordflow">return</span> <span class="keyword">new</span> CORBA::Any();
<a name="l00178"></a>00178 }
<a name="l00179"></a>00179 }
<a name="l00180"></a>00180
<a name="l00181"></a>00181 <span class="comment">//</span>
<a name="l00182"></a>00182
<a name="l00183"></a><a class="code" href="a00065.html#a4">00183</a> <a class="code" href="a00065.html#a4">ProxyPullSupplier_i::ProxyPullSupplier_i</a>(
<a name="l00184"></a>00184 PortableServer::POA_ptr poa,
<a name="l00185"></a>00185 <a class="code" href="a00049.html">EventQueue</a>& q
<a name="l00186"></a>00186 )
<a name="l00187"></a>00187 : <a class="code" href="a00061.html">Proxy</a>(poa),
<a name="l00188"></a>00188 <a class="code" href="a00049.html">EventQueue</a>::Reader(q),
<a name="l00189"></a>00189 _target(CosEventComm::PullConsumer::_nil()),
<a name="l00190"></a>00190 _connected(false),
<a name="l00191"></a>00191 _timestamp(0)
<a name="l00192"></a>00192 {
<a name="l00193"></a>00193 <a class="code" href="a00065.html#d0">touch</a>();
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195
<a name="l00196"></a><a class="code" href="a00065.html#a5">00196</a> <a class="code" href="a00065.html#a5">ProxyPullSupplier_i::~ProxyPullSupplier_i</a>()
<a name="l00197"></a>00197 {
<a name="l00198"></a>00198 <a class="code" href="a00116.html#a2">DB</a>(20,<span class="stringliteral">"~ProxyPullSupplier_i()"</span>)
<a name="l00199"></a>00199 }
<a name="l00200"></a>00200
<a name="l00201"></a><a class="code" href="a00065.html#a6">00201</a> <span class="keywordtype">void</span> <a class="code" href="a00065.html#a6">ProxyPullSupplier_i::reincarnate</a>(
<a name="l00202"></a>00202 <span class="keyword">const</span> string& oid,
<a name="l00203"></a>00203 <span class="keyword">const</span> <a class="code" href="a00060.html">PersistNode</a>& node
<a name="l00204"></a>00204 )
<a name="l00205"></a>00205 {
<a name="l00206"></a>00206 CosEventComm::PullConsumer_var pullConsumer =
<a name="l00207"></a>00207 string_to_<CosEventComm::PullConsumer>(node.<a class="code" href="a00060.html#a11">attrString</a>(<span class="stringliteral">"IOR"</span>).c_str());
<a name="l00208"></a>00208 <span class="comment">// Do not activate until we know that we have read a valid target.</span>
<a name="l00209"></a>00209 <a class="code" href="a00073.html#b1">activateObjectWithId</a>(oid.c_str());
<a name="l00210"></a>00210 <a class="code" href="a00065.html#a0">connect_pull_consumer</a>(pullConsumer.in());
<a name="l00211"></a>00211 }
<a name="l00212"></a>00212
<a name="l00213"></a><a class="code" href="a00065.html#a7">00213</a> <span class="keywordtype">void</span> <a class="code" href="a00065.html#a7">ProxyPullSupplier_i::output</a>(ostream& os)
<a name="l00214"></a>00214 {
<a name="l00215"></a>00215 <a class="code" href="a00061.html#b3">basicOutput</a>(os,<span class="stringliteral">"ConsumerAdmin/ProxyPullSupplier"</span>,<a class="code" href="a00065.html#r0">_target</a>.in());
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217
<a name="l00218"></a><a class="code" href="a00065.html#d0">00218</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="a00065.html#d0">ProxyPullSupplier_i::touch</a>()
<a name="l00219"></a>00219 {
<a name="l00220"></a>00220 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> nsec; <span class="comment">// dummy</span>
<a name="l00221"></a>00221 omni_thread::get_time(&<a class="code" href="a00065.html#r2">_timestamp</a>,&nsec);
<a name="l00222"></a>00222 }
<a name="l00223"></a>00223
<a name="l00224"></a>00224 }; <span class="comment">// end namespace OmniEvents</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Fri Aug 26 20:56:14 2005 for OmniEvents by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.3-20050530 </small></address>
</body>
</html>
|
