in-memory-storage-fifo.hpp
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21 
22 #ifndef NDN_CXX_IMS_IN_MEMORY_STORAGE_FIFO_HPP
23 #define NDN_CXX_IMS_IN_MEMORY_STORAGE_FIFO_HPP
24 
26 
27 #include <boost/multi_index_container.hpp>
28 #include <boost/multi_index/hashed_index.hpp>
29 #include <boost/multi_index/sequenced_index.hpp>
30 
31 namespace ndn {
32 
36 {
37 public:
38  explicit
39  InMemoryStorageFifo(size_t limit = 16);
40 
41  explicit
42  InMemoryStorageFifo(boost::asio::io_service& ioService, size_t limit = 16);
43 
48  bool
49  evictItem() override;
50 
53  void
54  afterInsert(InMemoryStorageEntry* entry) override;
55 
59  void
60  beforeErase(InMemoryStorageEntry* entry) override;
61 
62 private:
63  // multi_index_container to implement FIFO
64  class byArrival;
65  class byEntity;
66 
67  typedef boost::multi_index_container<
69  boost::multi_index::indexed_by<
70 
71  // by Entry itself
72  boost::multi_index::hashed_unique<
73  boost::multi_index::tag<byEntity>,
74  boost::multi_index::identity<InMemoryStorageEntry*>
75  >,
76 
77  // by arrival (FIFO)
78  boost::multi_index::sequenced<
79  boost::multi_index::tag<byArrival>
80  >
81 
82  >
83  > CleanupIndex;
84 
85  CleanupIndex m_cleanupIndex;
86 };
87 
88 } // namespace ndn
89 
90 #endif // NDN_CXX_IMS_IN_MEMORY_STORAGE_FIFO_HPP
Represents an in-memory storage entry.
Provides in-memory storage employing First-In-First-Out (FIFO) replacement policy.
void beforeErase(InMemoryStorageEntry *entry) override
Update the entry or other data structures before a entry is successfully erased, erase it from the cl...
bool evictItem() override
Removes one Data packet from in-memory storage based on FIFO.
void afterInsert(InMemoryStorageEntry *entry) override
Update the entry after a entry is successfully inserted, add it to the cleanupIndex.
Represents in-memory storage.
#define NDN_CXX_PUBLIC_WITH_TESTS_ELSE_PROTECTED
Definition: common.hpp:47
Definition: data.cpp:25