BundleStore.h

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00001 /*
00002  *    Copyright 2004-2006 Intel Corporation
00003  * 
00004  *    Licensed under the Apache License, Version 2.0 (the "License");
00005  *    you may not use this file except in compliance with the License.
00006  *    You may obtain a copy of the License at
00007  * 
00008  *        http://www.apache.org/licenses/LICENSE-2.0
00009  * 
00010  *    Unless required by applicable law or agreed to in writing, software
00011  *    distributed under the License is distributed on an "AS IS" BASIS,
00012  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  *    See the License for the specific language governing permissions and
00014  *    limitations under the License.
00015  */
00016 
00017 #ifndef _BUNDLE_STORE_H_
00018 #define _BUNDLE_STORE_H_
00019 
00020 #include <oasys/debug/DebugUtils.h>
00021 #include <oasys/serialize/TypeShims.h>
00022 #include <oasys/storage/InternalKeyDurableTable.h>
00023 #include <oasys/util/OpenFdCache.h>
00024 #include <oasys/util/Singleton.h>
00025 #include "DTNStorageConfig.h"
00026 
00027 namespace dtn {
00028 
00029 class Bundle;
00030 
00036 class BundleStore : public oasys::Singleton<BundleStore, false> {
00037 public:
00039     typedef oasys::OpenFdCache<std::string> FdCache;
00040     typedef oasys::InternalKeyDurableTable<
00041         oasys::UIntShim, u_int32_t, Bundle> BundleTable;
00042     typedef BundleTable::iterator iterator;
00043     
00048     static int init(const DTNStorageConfig& cfg,
00049                     oasys::DurableStore*    store);
00050     
00054     BundleStore(const DTNStorageConfig& cfg);
00055 
00057     bool add(Bundle* bundle);
00058 
00060     Bundle* get(u_int32_t bundleid);
00061     
00063     bool update(Bundle* bundle);
00064 
00066     bool del(Bundle* bundle);
00067 
00069     iterator* new_iterator();
00070         
00072     void close();
00073 
00075     const std::string& payload_dir()     { return cfg_.payload_dir_; }
00076     u_int64_t          payload_quota()   { return cfg_.payload_quota_; }
00077     FdCache*           payload_fdcache() { return &payload_fdcache_; }
00078     u_int64_t          total_size()      { return total_size_; }
00080     
00081 protected:
00082     friend class BundleDaemon;
00083 
00086     void set_total_size(u_int64_t sz) { total_size_ = sz; }
00087     
00088     const DTNStorageConfig& cfg_; 
00089     BundleTable bundles_;       
00090     FdCache payload_fdcache_;   
00091     u_int64_t total_size_;      
00092 };
00093 
00094 } // namespace dtn
00095 
00096 #endif /* _BUNDLE_STORE_H_ */

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