SQLGlobalStore.cc

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00001 /*
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00005  * install, copy or use the software.
00006  * 
00007  * Intel Open Source License 
00008  * 
00009  * Copyright (c) 2004 Intel Corporation. All rights reserved. 
00010  * 
00011  * Redistribution and use in source and binary forms, with or without
00012  * modification, are permitted provided that the following conditions are
00013  * met:
00014  * 
00015  *   Redistributions of source code must retain the above copyright
00016  *   notice, this list of conditions and the following disclaimer.
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00018  *   Redistributions in binary form must reproduce the above copyright
00019  *   notice, this list of conditions and the following disclaimer in the
00020  *   documentation and/or other materials provided with the distribution.
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00022  *   Neither the name of the Intel Corporation nor the names of its
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00024  *   this software without specific prior written permission.
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00038 
00039 #include "config.h"
00040 
00041 #if SQL_ENABLED
00042 
00043 #include "SQLGlobalStore.h"
00044 #include "SQLStore.h"
00045 #include "StorageConfig.h"
00046 
00047 namespace dtn {
00048 
00049 static const char* TABLENAME = "globals";
00050 
00051 SQLGlobalStore::SQLGlobalStore(oasys::SQLImplementation* impl)
00052 {
00053     store_ = new SQLStore(TABLENAME, impl);
00054     store_->create_table(this);
00055 }
00056 
00057 SQLGlobalStore::~SQLGlobalStore()
00058 {
00059     NOTREACHED;
00060 }
00061 
00062 bool
00063 SQLGlobalStore::load()
00064 {
00065     log_debug("loading global store");
00066 
00067     oasys::SerializableObjectVector elements;
00068     elements.push_back(this);
00069     
00070     int cnt = store_->elements(&elements);
00071     
00072     if (cnt == 1) {
00073         log_debug("loaded next bundle id %d next reg id %d",
00074                   next_bundleid_, next_regid_);
00075 
00076     } else if (cnt == 0 && StorageConfig::instance()->tidy_) {
00077         log_info("globals table does not exist... initializing it");
00078         
00079         next_bundleid_ = 0;
00080         next_regid_ = 0;
00081         
00082         if (store_->insert(this) != 0) {
00083             log_err("error initializing globals table");
00084             exit(1);
00085         }
00086 
00087     } else {
00088         log_err("error loading globals table");
00089         exit(1);
00090     }
00091 
00092     return true;
00093 }
00094 
00095 bool
00096 SQLGlobalStore::update()
00097 {
00098     log_debug("updating global store");
00099     
00100     if (store_->update(this, -1) == -1) {
00101         log_err("error updating global store");
00102         return false;
00103     }
00104     
00105     return true;
00106 }
00107 
00108 } // namespace dtn
00109 
00110 #endif /* SQL_ENABLED */

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