Class AddressBookFilesystemStorage

libi2pd_client/AddressBook.cpp:43–79

TODO: this is actually proxy class

{
	// TODO: this is actually proxy class
	class AddressBookFilesystemStorage: public AddressBookStorage
	{
		public:

			AddressBookFilesystemStorage (): storage("addressbook", "b", "", "b32")
			{
				i2p::config::GetOption("persist.addressbook", m_IsPersist);
				if (m_IsPersist)
					i2p::config::GetOption("addressbook.hostsfile", m_HostsFile);
			}
			std::shared_ptr<const i2p::data::IdentityEx> GetAddress (const i2p::data::IdentHash& ident) override;
			void AddAddress (std::shared_ptr<const i2p::data::IdentityEx> address) override;
			void RemoveAddress (const i2p::data::IdentHash& ident) override;
			void CleanUpCache () override;

			bool Init () override;
			int Load (Addresses& addresses) override;
			int LoadLocal (Addresses& addresses) override;
			int Save (const Addresses& addresses) override;

			void SaveEtag (const i2p::data::IdentHash& subscription, const std::string& etag, const std::string& lastModified) override;
			bool GetEtag (const i2p::data::IdentHash& subscription, std::string& etag, std::string& lastModified) override;
			void ResetEtags () override;

		private:

			int LoadFromFile (const std::string& filename, Addresses& addresses); // returns -1 if can't open file, otherwise number of records

		private:

			i2p::fs::HashedStorage storage;
			std::string etagsPath, indexPath, localPath;
			bool m_IsPersist;
			std::string m_HostsFile; // file to dump hosts.txt, empty if not used
			std::unordered_map<i2p::data::IdentHash, std::pair<std::vector<uint8_t>, uint64_t> > m_FullAddressCache; // ident hash -> (full ident buffer, last access timestamp)
			std::mutex m_FullAddressCacheMutex;
	};

	bool AddressBookFilesystemStorage::Init()
	{