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<h1>GlobalStore.cc</h1><a href="GlobalStore_8cc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright 2004-2006 Intel Corporation</span>
<a name="l00003"></a>00003 <span class="comment"> * </span>
<a name="l00004"></a>00004 <span class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</span>
<a name="l00005"></a>00005 <span class="comment"> * you may not use this file except in compliance with the License.</span>
<a name="l00006"></a>00006 <span class="comment"> * You may obtain a copy of the License at</span>
<a name="l00007"></a>00007 <span class="comment"> * </span>
<a name="l00008"></a>00008 <span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span>
<a name="l00009"></a>00009 <span class="comment"> * </span>
<a name="l00010"></a>00010 <span class="comment"> * Unless required by applicable law or agreed to in writing, software</span>
<a name="l00011"></a>00011 <span class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
<a name="l00012"></a>00012 <span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<a name="l00013"></a>00013 <span class="comment"> * See the License for the specific language governing permissions and</span>
<a name="l00014"></a>00014 <span class="comment"> * limitations under the License.</span>
<a name="l00015"></a>00015 <span class="comment"> */</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span><span class="preprocessor"># include <<a class="code" href="dtn-config_8h.html">dtn-config.h</a>></span>
<a name="l00019"></a>00019 <span class="preprocessor">#endif</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <oasys/storage/DurableStore.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <oasys/storage/StorageConfig.h></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <oasys/serialize/TypeShims.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <oasys/thread/Mutex.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <oasys/util/MD5.h></span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="GlobalStore_8h.html">GlobalStore.h</a>"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include "<a class="code" href="bundling_2Bundle_8h.html">bundling/Bundle.h</a>"</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include "<a class="code" href="APIRegistration_8h.html">reg/APIRegistration.h</a>"</span>
<a name="l00030"></a>00030 <span class="preprocessor">#include "<a class="code" href="ProphetNode_8h.html">routing/ProphetNode.h</a>"</span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="keyword">namespace </span>dtn {
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00035"></a>00035 <span class="keyword">const</span> u_int32_t <a class="code" href="classdtn_1_1GlobalStore.html#c49069461c18c4fcc29fbbb42fe02232">GlobalStore::CURRENT_VERSION</a> = 3;
<a name="l00036"></a><a class="code" href="namespacedtn.html#6e1822fdb3b71fa33feaa20f4976d2d5">00036</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="namespacedtn.html#6e1822fdb3b71fa33feaa20f4976d2d5">GLOBAL_TABLE</a> = <span class="stringliteral">"globals"</span>;
<a name="l00037"></a><a class="code" href="namespacedtn.html#fa0931b54c32c12aeed373bb67fc9d2d">00037</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="namespacedtn.html#fa0931b54c32c12aeed373bb67fc9d2d">GLOBAL_KEY</a> = <span class="stringliteral">"global_key"</span>;
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00040"></a><a class="code" href="classdtn_1_1Globals.html">00040</a> <span class="keyword">class </span><a class="code" href="classdtn_1_1Globals.html">Globals</a> : <span class="keyword">public</span> oasys::SerializableObject
<a name="l00041"></a>00041 {
<a name="l00042"></a>00042 <span class="keyword">public</span>:
<a name="l00043"></a><a class="code" href="classdtn_1_1Globals.html#d4f5c5c2f4be6c66ea9dc92c61a2dbbb">00043</a> <a class="code" href="classdtn_1_1Globals.html#d4f5c5c2f4be6c66ea9dc92c61a2dbbb">Globals</a>() {}
<a name="l00044"></a><a class="code" href="classdtn_1_1Globals.html#67cb7914c50644a0cb77c70e24c7a9e2">00044</a> <a class="code" href="classdtn_1_1Globals.html#d4f5c5c2f4be6c66ea9dc92c61a2dbbb">Globals</a>(<span class="keyword">const</span> oasys::Builder&) {}
<a name="l00045"></a>00045
<a name="l00046"></a><a class="code" href="classdtn_1_1Globals.html#846dc6b2b5a2b036a09d803ef11a5edc">00046</a> u_int32_t <a class="code" href="classdtn_1_1Globals.html#846dc6b2b5a2b036a09d803ef11a5edc" title="on-disk copy of CURRENT_VERSION">version_</a>;
<a name="l00047"></a><a class="code" href="classdtn_1_1Globals.html#53b59e9d46b9c7d60fe8c525c8c09f67">00047</a> u_int32_t <a class="code" href="classdtn_1_1Globals.html#53b59e9d46b9c7d60fe8c525c8c09f67" title="running serial number for bundles">next_bundleid_</a>;
<a name="l00048"></a><a class="code" href="classdtn_1_1Globals.html#267297b487944a3a552b4fa8055a87b3">00048</a> u_int32_t <a class="code" href="classdtn_1_1Globals.html#267297b487944a3a552b4fa8055a87b3" title="running serial number for registrations">next_regid_</a>;
<a name="l00049"></a><a class="code" href="classdtn_1_1Globals.html#d4613ca3b240de7587207f6c69cc4813">00049</a> u_char <a class="code" href="classdtn_1_1Globals.html#d4613ca3b240de7587207f6c69cc4813" title="MD5 digest of all serialized fields.">digest_</a>[oasys::MD5::MD5LEN];
<a name="l00050"></a>00050
<a name="l00054"></a>00054 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classdtn_1_1Globals.html#dc6a9a661004adee402dfbbc2a222aac" title="Virtual from SerializableObject.">serialize</a>(oasys::SerializeAction* a);
<a name="l00055"></a>00055 };
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00058"></a>00058 <span class="keywordtype">void</span>
<a name="l00059"></a><a class="code" href="classdtn_1_1Globals.html#dc6a9a661004adee402dfbbc2a222aac">00059</a> <a class="code" href="classdtn_1_1Globals.html#dc6a9a661004adee402dfbbc2a222aac" title="Virtual from SerializableObject.">Globals::serialize</a>(oasys::SerializeAction* a)
<a name="l00060"></a>00060 {
<a name="l00061"></a>00061 a->process(<span class="stringliteral">"version"</span>, &<a class="code" href="classdtn_1_1Globals.html#846dc6b2b5a2b036a09d803ef11a5edc" title="on-disk copy of CURRENT_VERSION">version_</a>);
<a name="l00062"></a>00062 a->process(<span class="stringliteral">"next_bundleid"</span>, &<a class="code" href="classdtn_1_1Globals.html#53b59e9d46b9c7d60fe8c525c8c09f67" title="running serial number for bundles">next_bundleid_</a>);
<a name="l00063"></a>00063 a->process(<span class="stringliteral">"next_regid"</span>, &<a class="code" href="classdtn_1_1Globals.html#267297b487944a3a552b4fa8055a87b3" title="running serial number for registrations">next_regid_</a>);
<a name="l00064"></a>00064 a->process(<span class="stringliteral">"digest"</span>, <a class="code" href="classdtn_1_1Globals.html#d4613ca3b240de7587207f6c69cc4813" title="MD5 digest of all serialized fields.">digest_</a>, 16);
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00068"></a>00068 <a class="code" href="classdtn_1_1GlobalStore.html" title="Class for those elements of the router that need to be persistently stored but are...">GlobalStore</a>* GlobalStore::instance_;
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00071"></a><a class="code" href="classdtn_1_1GlobalStore.html#6f4f3b455773baf77dfb80d6300ee6a3">00071</a> GlobalStore::GlobalStore()
<a name="l00072"></a>00072 : <a class="code" href="classoasys_1_1Logger.html">Logger</a>(<span class="stringliteral">"GlobalStore"</span>, <span class="stringliteral">"/dtn/storage/%s"</span>, <a class="code" href="namespacedtn.html#6e1822fdb3b71fa33feaa20f4976d2d5">GLOBAL_TABLE</a>),
<a name="l00073"></a>00073 globals_(NULL), store_(NULL)
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075 <a class="code" href="classdtn_1_1GlobalStore.html#6eafeca26db895e83de98e0b644eb695">lock_</a> = <span class="keyword">new</span> oasys::Mutex(logpath_,
<a name="l00076"></a>00076 oasys::Mutex::TYPE_RECURSIVE,
<a name="l00077"></a>00077 <span class="keyword">true</span> <span class="comment">/* quiet */</span>);
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00081"></a>00081 <span class="keywordtype">int</span>
<a name="l00082"></a><a class="code" href="classdtn_1_1GlobalStore.html#87cea517050ba03905ec0f9b288783cc">00082</a> <a class="code" href="classdtn_1_1GlobalStore.html#87cea517050ba03905ec0f9b288783cc" title="Boot time initializer.">GlobalStore::init</a>(<span class="keyword">const</span> oasys::StorageConfig& cfg,
<a name="l00083"></a>00083 oasys::DurableStore* store)
<a name="l00084"></a>00084 {
<a name="l00085"></a>00085 <span class="keywordflow">if</span> (<a class="code" href="classdtn_1_1GlobalStore.html#cddeeabc9fbd02c65c9bccc30cc92661" title="singleton instance">instance_</a> != NULL)
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 PANIC(<span class="stringliteral">"GlobalStore::init called multiple times"</span>);
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <a class="code" href="classdtn_1_1GlobalStore.html#cddeeabc9fbd02c65c9bccc30cc92661" title="singleton instance">instance_</a> = <span class="keyword">new</span> <a class="code" href="classdtn_1_1GlobalStore.html#6f4f3b455773baf77dfb80d6300ee6a3" title="Constructor.">GlobalStore</a>();
<a name="l00091"></a>00091 <span class="keywordflow">return</span> <a class="code" href="classdtn_1_1GlobalStore.html#cddeeabc9fbd02c65c9bccc30cc92661" title="singleton instance">instance_</a>-><a class="code" href="classdtn_1_1GlobalStore.html#3638bc6ee40e3be5b24b7bcbde0e5c7e" title="Real initialization method.">do_init</a>(cfg, store);
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00095"></a>00095 <span class="keywordtype">int</span>
<a name="l00096"></a><a class="code" href="classdtn_1_1GlobalStore.html#3638bc6ee40e3be5b24b7bcbde0e5c7e">00096</a> <a class="code" href="classdtn_1_1GlobalStore.html#3638bc6ee40e3be5b24b7bcbde0e5c7e" title="Real initialization method.">GlobalStore::do_init</a>(<span class="keyword">const</span> oasys::StorageConfig& cfg,
<a name="l00097"></a>00097 oasys::DurableStore* store)
<a name="l00098"></a>00098 {
<a name="l00099"></a>00099 <span class="keywordtype">int</span> flags = 0;
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keywordflow">if</span> (cfg.init_) {
<a name="l00102"></a>00102 flags |= oasys::DS_CREATE;
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="keywordtype">int</span> err = store->get_table(&<a class="code" href="classdtn_1_1GlobalStore.html#b57f9969fa2b0bf21bf050d2be3db3bc">store_</a>, <a class="code" href="namespacedtn.html#6e1822fdb3b71fa33feaa20f4976d2d5">GLOBAL_TABLE</a>, flags);
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="keywordflow">if</span> (err != 0) {
<a name="l00108"></a>00108 log_err(<span class="stringliteral">"error initializing global store: %s"</span>,
<a name="l00109"></a>00109 (err == oasys::DS_NOTFOUND) ?
<a name="l00110"></a>00110 <span class="stringliteral">"table not found"</span> :
<a name="l00111"></a>00111 <span class="stringliteral">"unknown error"</span>);
<a name="l00112"></a>00112 <span class="keywordflow">return</span> err;
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">// if we're initializing the database for the first time, then we</span>
<a name="l00116"></a>00116 <span class="comment">// prime the values accordingly and sync the database version</span>
<a name="l00117"></a>00117 <span class="keywordflow">if</span> (cfg.init_)
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 log_info(<span class="stringliteral">"initializing global table"</span>);
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a> = <span class="keyword">new</span> <a class="code" href="classdtn_1_1Globals.html">Globals</a>();
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#846dc6b2b5a2b036a09d803ef11a5edc" title="on-disk copy of CURRENT_VERSION">version_</a> = <a class="code" href="classdtn_1_1GlobalStore.html#c49069461c18c4fcc29fbbb42fe02232">CURRENT_VERSION</a>;
<a name="l00124"></a>00124 <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#53b59e9d46b9c7d60fe8c525c8c09f67" title="running serial number for bundles">next_bundleid_</a> = 0;
<a name="l00125"></a>00125 <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#267297b487944a3a552b4fa8055a87b3" title="running serial number for registrations">next_regid_</a> = <a class="code" href="classdtn_1_1Registration.html#a77413af54eb80bb526deaa3b4377ce8">Registration::MAX_RESERVED_REGID</a> + 1;
<a name="l00126"></a>00126 <a class="code" href="classdtn_1_1GlobalStore.html#acf08d987fd4d96a0bd7f55a65199052" title="Calculate a digest of on-disk serialized objects.">calc_digest</a>(<a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#d4613ca3b240de7587207f6c69cc4813" title="MD5 digest of all serialized fields.">digest_</a>);
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="comment">// store the new value</span>
<a name="l00129"></a>00129 err = <a class="code" href="classdtn_1_1GlobalStore.html#b57f9969fa2b0bf21bf050d2be3db3bc">store_</a>->put(oasys::StringShim(<a class="code" href="namespacedtn.html#fa0931b54c32c12aeed373bb67fc9d2d">GLOBAL_KEY</a>), <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>,
<a name="l00130"></a>00130 oasys::DS_CREATE | oasys::DS_EXCL);
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keywordflow">if</span> (err == oasys::DS_EXISTS)
<a name="l00133"></a>00133 {
<a name="l00134"></a>00134 <span class="comment">// YUCK</span>
<a name="l00135"></a>00135 <a class="code" href="SDNV_8cc.html#3f24cadc9f28aba33472df0500092dcb">log_err_p</a>(<span class="stringliteral">"/dtnd"</span>, <span class="stringliteral">"Initializing datastore which already exists."</span>);
<a name="l00136"></a>00136 exit(1);
<a name="l00137"></a>00137 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (err != 0) {
<a name="l00138"></a>00138 <a class="code" href="SDNV_8cc.html#3f24cadc9f28aba33472df0500092dcb">log_err_p</a>(<span class="stringliteral">"/dtnd"</span>, <span class="stringliteral">"unknown error initializing global store"</span>);
<a name="l00139"></a>00139 <span class="keywordflow">return</span> err;
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <a class="code" href="classdtn_1_1GlobalStore.html#a4f769642ccfd052bce745507bab471f">loaded_</a> = <span class="keyword">true</span>;
<a name="l00143"></a>00143
<a name="l00144"></a>00144 } <span class="keywordflow">else</span> {
<a name="l00145"></a>00145 <a class="code" href="classdtn_1_1GlobalStore.html#a4f769642ccfd052bce745507bab471f">loaded_</a> = <span class="keyword">false</span>;
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147
<a name="l00148"></a>00148 <span class="keywordflow">return</span> 0;
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00152"></a><a class="code" href="classdtn_1_1GlobalStore.html#639c03b947345cef9815c529df76d37a">00152</a> <a class="code" href="classdtn_1_1GlobalStore.html#639c03b947345cef9815c529df76d37a" title="Destructor.">GlobalStore::~GlobalStore</a>()
<a name="l00153"></a>00153 {
<a name="l00154"></a>00154 <span class="keyword">delete</span> <a class="code" href="classdtn_1_1GlobalStore.html#b57f9969fa2b0bf21bf050d2be3db3bc">store_</a>;
<a name="l00155"></a>00155 <span class="keyword">delete</span> <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>;
<a name="l00156"></a>00156 <span class="keyword">delete</span> <a class="code" href="classdtn_1_1GlobalStore.html#6eafeca26db895e83de98e0b644eb695">lock_</a>;
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158
<a name="l00159"></a>00159 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00160"></a>00160 u_int32_t
<a name="l00161"></a><a class="code" href="classdtn_1_1GlobalStore.html#70842bf9404fe5c9ec84bb9fc99c657e">00161</a> <a class="code" href="classdtn_1_1GlobalStore.html#70842bf9404fe5c9ec84bb9fc99c657e" title="Get a new bundle id, updating the value in the store.">GlobalStore::next_bundleid</a>()
<a name="l00162"></a>00162 {
<a name="l00163"></a>00163 oasys::ScopeLock l(<a class="code" href="classdtn_1_1GlobalStore.html#6eafeca26db895e83de98e0b644eb695">lock_</a>, <span class="stringliteral">"GlobalStore::next_bundleid"</span>);
<a name="l00164"></a>00164
<a name="l00165"></a>00165 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(<a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#53b59e9d46b9c7d60fe8c525c8c09f67" title="running serial number for bundles">next_bundleid_</a> != 0xffffffff);
<a name="l00166"></a>00166 log_debug(<span class="stringliteral">"next_bundleid %d -> %d"</span>,
<a name="l00167"></a>00167 <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#53b59e9d46b9c7d60fe8c525c8c09f67" title="running serial number for bundles">next_bundleid_</a>,
<a name="l00168"></a>00168 <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#53b59e9d46b9c7d60fe8c525c8c09f67" title="running serial number for bundles">next_bundleid_</a> + 1);
<a name="l00169"></a>00169
<a name="l00170"></a>00170 u_int32_t ret = <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#53b59e9d46b9c7d60fe8c525c8c09f67" title="running serial number for bundles">next_bundleid_</a>++;
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <a class="code" href="classdtn_1_1GlobalStore.html#a1ccd629fa2ff5f48068702895eaab7f" title="Update the globals in the store.">update</a>();
<a name="l00173"></a>00173
<a name="l00174"></a>00174 <span class="keywordflow">return</span> ret;
<a name="l00175"></a>00175 }
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00178"></a>00178 u_int32_t
<a name="l00179"></a><a class="code" href="classdtn_1_1GlobalStore.html#0cd22769f4f62af9ef5779f453814d16">00179</a> <a class="code" href="classdtn_1_1GlobalStore.html#0cd22769f4f62af9ef5779f453814d16" title="Get a new unique registration id, updating the running value in the persistent table...">GlobalStore::next_regid</a>()
<a name="l00180"></a>00180 {
<a name="l00181"></a>00181 oasys::ScopeLock l(<a class="code" href="classdtn_1_1GlobalStore.html#6eafeca26db895e83de98e0b644eb695">lock_</a>, <span class="stringliteral">"GlobalStore::next_regid"</span>);
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(<a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#267297b487944a3a552b4fa8055a87b3" title="running serial number for registrations">next_regid_</a> != 0xffffffff);
<a name="l00184"></a>00184 log_debug(<span class="stringliteral">"next_regid %d -> %d"</span>,
<a name="l00185"></a>00185 <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#267297b487944a3a552b4fa8055a87b3" title="running serial number for registrations">next_regid_</a>,
<a name="l00186"></a>00186 <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#267297b487944a3a552b4fa8055a87b3" title="running serial number for registrations">next_regid_</a> + 1);
<a name="l00187"></a>00187
<a name="l00188"></a>00188 u_int32_t ret = <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#267297b487944a3a552b4fa8055a87b3" title="running serial number for registrations">next_regid_</a>++;
<a name="l00189"></a>00189
<a name="l00190"></a>00190 <a class="code" href="classdtn_1_1GlobalStore.html#a1ccd629fa2ff5f48068702895eaab7f" title="Update the globals in the store.">update</a>();
<a name="l00191"></a>00191
<a name="l00192"></a>00192 <span class="keywordflow">return</span> ret;
<a name="l00193"></a>00193 }
<a name="l00194"></a>00194
<a name="l00195"></a>00195 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00196"></a>00196 <span class="keywordtype">void</span>
<a name="l00197"></a><a class="code" href="classdtn_1_1GlobalStore.html#acf08d987fd4d96a0bd7f55a65199052">00197</a> <a class="code" href="classdtn_1_1GlobalStore.html#acf08d987fd4d96a0bd7f55a65199052" title="Calculate a digest of on-disk serialized objects.">GlobalStore::calc_digest</a>(u_char* digest)
<a name="l00198"></a>00198 {
<a name="l00199"></a>00199 <span class="comment">// We create dummy objects for all serialized objects, then take</span>
<a name="l00200"></a>00200 <span class="comment">// their serialized form and MD5 it, so adding or deleting a</span>
<a name="l00201"></a>00201 <span class="comment">// serialized field will change the digest</span>
<a name="l00202"></a>00202 <a class="code" href="classdtn_1_1Bundle.html" title="The internal representation of a bundle.">Bundle</a> b(oasys::Builder::builder());
<a name="l00203"></a>00203 <a class="code" href="classdtn_1_1APIRegistration.html" title="Registration class to represent an actual attached application over the client api...">APIRegistration</a> r(oasys::Builder::builder());
<a name="l00204"></a>00204 <a class="code" href="classdtn_1_1ProphetNode.html" title="ProphetNode stores state for a remote node as identified by remote_eid.">ProphetNode</a> n(oasys::Builder::builder());
<a name="l00205"></a>00205
<a name="l00206"></a>00206 oasys::StringSerialize s(oasys::Serialize::CONTEXT_LOCAL,
<a name="l00207"></a>00207 oasys::StringSerialize::INCLUDE_NAME |
<a name="l00208"></a>00208 oasys::StringSerialize::INCLUDE_TYPE |
<a name="l00209"></a>00209 oasys::StringSerialize::SCHEMA_ONLY);
<a name="l00210"></a>00210
<a name="l00211"></a>00211 s.action(&b);
<a name="l00212"></a>00212 s.action(&r);
<a name="l00213"></a>00213 s.action(&n);
<a name="l00214"></a>00214
<a name="l00215"></a>00215 oasys::MD5 md5;
<a name="l00216"></a>00216 md5.update(s.buf().data(), s.buf().length());
<a name="l00217"></a>00217 md5.finalize();
<a name="l00218"></a>00218
<a name="l00219"></a>00219 log_debug(<span class="stringliteral">"calculated digest %s for serialize string '%s'"</span>,
<a name="l00220"></a>00220 md5.digest_ascii().c_str(), s.buf().c_str());
<a name="l00221"></a>00221
<a name="l00222"></a>00222 memcpy(digest, md5.digest(), oasys::MD5::MD5LEN);
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224
<a name="l00225"></a>00225 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00226"></a>00226 <span class="keywordtype">bool</span>
<a name="l00227"></a><a class="code" href="classdtn_1_1GlobalStore.html#f13b2a032c0320672940f4bff3b5c0d7">00227</a> <a class="code" href="classdtn_1_1GlobalStore.html#f13b2a032c0320672940f4bff3b5c0d7" title="Load in the globals.">GlobalStore::load</a>()
<a name="l00228"></a>00228 {
<a name="l00229"></a>00229 log_debug(<span class="stringliteral">"loading global store"</span>);
<a name="l00230"></a>00230
<a name="l00231"></a>00231 oasys::StringShim key(<a class="code" href="namespacedtn.html#fa0931b54c32c12aeed373bb67fc9d2d">GLOBAL_KEY</a>);
<a name="l00232"></a>00232
<a name="l00233"></a>00233 <span class="keywordflow">if</span> (<a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a> != NULL) {
<a name="l00234"></a>00234 <span class="keyword">delete</span> <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>;
<a name="l00235"></a>00235 <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a> = NULL;
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237
<a name="l00238"></a>00238 <span class="keywordflow">if</span> (<a class="code" href="classdtn_1_1GlobalStore.html#b57f9969fa2b0bf21bf050d2be3db3bc">store_</a>->get(key, &<a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>) != 0) {
<a name="l00239"></a>00239 log_crit(<span class="stringliteral">"error loading global data"</span>);
<a name="l00240"></a>00240 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00241"></a>00241 }
<a name="l00242"></a>00242 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(<a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a> != NULL);
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordflow">if</span> (<a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#846dc6b2b5a2b036a09d803ef11a5edc" title="on-disk copy of CURRENT_VERSION">version_</a> != <a class="code" href="classdtn_1_1GlobalStore.html#c49069461c18c4fcc29fbbb42fe02232">CURRENT_VERSION</a>) {
<a name="l00245"></a>00245 log_crit(<span class="stringliteral">"datastore version mismatch: "</span>
<a name="l00246"></a>00246 <span class="stringliteral">"expected version %d, database version %d"</span>,
<a name="l00247"></a>00247 <a class="code" href="classdtn_1_1GlobalStore.html#c49069461c18c4fcc29fbbb42fe02232">CURRENT_VERSION</a>, <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#846dc6b2b5a2b036a09d803ef11a5edc" title="on-disk copy of CURRENT_VERSION">version_</a>);
<a name="l00248"></a>00248 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00249"></a>00249 }
<a name="l00250"></a>00250
<a name="l00251"></a>00251 u_char digest[oasys::MD5::MD5LEN];
<a name="l00252"></a>00252 <a class="code" href="classdtn_1_1GlobalStore.html#acf08d987fd4d96a0bd7f55a65199052" title="Calculate a digest of on-disk serialized objects.">calc_digest</a>(digest);
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <span class="keywordflow">if</span> (memcmp(digest, <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#d4613ca3b240de7587207f6c69cc4813" title="MD5 digest of all serialized fields.">digest_</a>, oasys::MD5::MD5LEN) != 0) {
<a name="l00255"></a>00255 log_crit(<span class="stringliteral">"datastore digest mismatch: "</span>
<a name="l00256"></a>00256 <span class="stringliteral">"expected %s, database contains %s"</span>,
<a name="l00257"></a>00257 oasys::hex2str(digest, oasys::MD5::MD5LEN).c_str(),
<a name="l00258"></a>00258 oasys::hex2str(<a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>-><a class="code" href="classdtn_1_1Globals.html#d4613ca3b240de7587207f6c69cc4813" title="MD5 digest of all serialized fields.">digest_</a>, oasys::MD5::MD5LEN).c_str());
<a name="l00259"></a>00259 log_crit(<span class="stringliteral">"(implies serialized schema change)"</span>);
<a name="l00260"></a>00260 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262
<a name="l00263"></a>00263 <a class="code" href="classdtn_1_1GlobalStore.html#a4f769642ccfd052bce745507bab471f">loaded_</a> = <span class="keyword">true</span>;
<a name="l00264"></a>00264 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00265"></a>00265 }
<a name="l00266"></a>00266
<a name="l00267"></a>00267 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00268"></a>00268 <span class="keywordtype">void</span>
<a name="l00269"></a><a class="code" href="classdtn_1_1GlobalStore.html#a1ccd629fa2ff5f48068702895eaab7f">00269</a> <a class="code" href="classdtn_1_1GlobalStore.html#a1ccd629fa2ff5f48068702895eaab7f" title="Update the globals in the store.">GlobalStore::update</a>()
<a name="l00270"></a>00270 {
<a name="l00271"></a>00271 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(<a class="code" href="classdtn_1_1GlobalStore.html#6eafeca26db895e83de98e0b644eb695">lock_</a>->is_locked_by_me());
<a name="l00272"></a>00272
<a name="l00273"></a>00273 log_debug(<span class="stringliteral">"updating global store"</span>);
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="comment">// make certain we don't attempt to write out globals before</span>
<a name="l00276"></a>00276 <span class="comment">// load() has had a chance to load them from the database</span>
<a name="l00277"></a>00277 <a class="code" href="SDNV_8cc.html#ca68c0d4ac8df0838e209fb5300f7be3">ASSERT</a>(<a class="code" href="classdtn_1_1GlobalStore.html#a4f769642ccfd052bce745507bab471f">loaded_</a>);
<a name="l00278"></a>00278
<a name="l00279"></a>00279 <span class="keywordtype">int</span> err = <a class="code" href="classdtn_1_1GlobalStore.html#b57f9969fa2b0bf21bf050d2be3db3bc">store_</a>->put(oasys::StringShim(<a class="code" href="namespacedtn.html#fa0931b54c32c12aeed373bb67fc9d2d">GLOBAL_KEY</a>), <a class="code" href="classdtn_1_1GlobalStore.html#362bfa46205417ad036335ddaa03f8ad">globals_</a>, 0);
<a name="l00280"></a>00280
<a name="l00281"></a>00281 <span class="keywordflow">if</span> (err != 0) {
<a name="l00282"></a>00282 PANIC(<span class="stringliteral">"GlobalStore::update fatal error updating database: %s"</span>,
<a name="l00283"></a>00283 oasys::durable_strerror(err));
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285 }
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <span class="comment">//----------------------------------------------------------------------</span>
<a name="l00288"></a>00288 <span class="keywordtype">void</span>
<a name="l00289"></a><a class="code" href="classdtn_1_1GlobalStore.html#75296d47a62dd53eaf6f4e6844e56da9">00289</a> <a class="code" href="classdtn_1_1GlobalStore.html#75296d47a62dd53eaf6f4e6844e56da9" title="Close (and flush) the data store.">GlobalStore::close</a>()
<a name="l00290"></a>00290 {
<a name="l00291"></a>00291 <span class="comment">// we prevent the potential for shutdown race crashes by leaving</span>
<a name="l00292"></a>00292 <span class="comment">// the global store locked after it's been closed so other threads</span>
<a name="l00293"></a>00293 <span class="comment">// will simply block, not crash due to a null store</span>
<a name="l00294"></a>00294 <a class="code" href="classdtn_1_1GlobalStore.html#6eafeca26db895e83de98e0b644eb695">lock_</a>->lock(<span class="stringliteral">"GlobalStore::close"</span>);
<a name="l00295"></a>00295
<a name="l00296"></a>00296 <span class="keyword">delete</span> <a class="code" href="classdtn_1_1GlobalStore.html#b57f9969fa2b0bf21bf050d2be3db3bc">store_</a>;
<a name="l00297"></a>00297 <a class="code" href="classdtn_1_1GlobalStore.html#b57f9969fa2b0bf21bf050d2be3db3bc">store_</a> = NULL;
<a name="l00298"></a>00298
<a name="l00299"></a>00299 <span class="keyword">delete</span> <a class="code" href="classdtn_1_1GlobalStore.html#cddeeabc9fbd02c65c9bccc30cc92661" title="singleton instance">instance_</a>;
<a name="l00300"></a>00300 <a class="code" href="classdtn_1_1GlobalStore.html#cddeeabc9fbd02c65c9bccc30cc92661" title="singleton instance">instance_</a> = NULL;
<a name="l00301"></a>00301 }
<a name="l00302"></a>00302
<a name="l00303"></a>00303 } <span class="comment">// namespace dtn</span>
</pre></div></div>
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