GlobalStore.h

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00001 /*
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00006  * 
00007  * Intel Open Source License 
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00010  * 
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00018  *   Redistributions in binary form must reproduce the above copyright
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00038 #ifndef _GLOBAL_STORE_H_
00039 #define _GLOBAL_STORE_H_
00040 
00041 #include <oasys/debug/DebugUtils.h>
00042 #include <oasys/debug/Log.h>
00043 #include <oasys/serialize/Serialize.h>
00044 
00045 // forward decl
00046 namespace oasys {
00047 template<typename _Type> class SingleTypeDurableTable;
00048 class DurableStore;
00049 class Mutex;
00050 class StorageConfig;
00051 }
00052 
00053 namespace dtn {
00054 
00055 class Globals;
00056 
00063 class GlobalStore : public oasys::Logger {
00064 public:
00065     static const u_int32_t CURRENT_VERSION;
00066     
00070     static GlobalStore* instance() {
00071         if (instance_ == NULL) {
00072             PANIC("GlobalStore::init not called yet");
00073         }
00074         return instance_;
00075     }
00076 
00081     static int init(const oasys::StorageConfig& cfg, 
00082                     oasys::DurableStore*        store);
00083 
00087     GlobalStore();
00088 
00092     int do_init(const oasys::StorageConfig& cfg, 
00093                 oasys::DurableStore*        store);
00094     
00098     static bool initialized() { return (instance_ != NULL); }
00099     
00103     ~GlobalStore();
00104 
00110     u_int32_t next_bundleid();
00111     
00119     u_int32_t next_regid();
00120 
00124     bool load();
00125 
00129     void close();
00130 
00131 protected:
00135     void update();
00136 
00137     bool loaded_;
00138     Globals* globals_;
00139     oasys::SingleTypeDurableTable<Globals>* store_;
00140 
00141     oasys::Mutex* lock_;
00142 
00143     static GlobalStore* instance_; 
00144 };
00145 } // namespace dtn
00146 
00147 #endif /* _GLOBAL_STORE_H_ */

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