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Enter Library::removeBooksNotUpdatedSince()

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This commit is contained in:
Veloman Yunkan
2021-11-28 20:40:52 +04:00
parent 1d5383435d
commit 262e13845c
3 changed files with 94 additions and 2 deletions
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33
include/library.h
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@ -147,8 +147,20 @@ private: // functions
*/
class LibraryBase
{
protected: // types
typedef uint64_t LibraryRevision;
struct Entry : Book
{
LibraryRevision lastUpdatedRevision = 0;
// May also keep the Archive and Reader pointers here and get
// rid of the m_readers and m_archives data members in Library
};
protected: // data
std::map<std::string, kiwix::Book> m_books;
LibraryRevision m_revision;
std::map<std::string, Entry> m_books;
std::map<std::string, std::shared_ptr<Reader>> m_readers;
std::map<std::string, std::shared_ptr<zim::Archive>> m_archives;
std::vector<kiwix::Bookmark> m_bookmarks;
@ -172,6 +184,7 @@ class Library : private LibraryBase
mutable std::mutex m_mutex;
public:
typedef LibraryRevision Revision;
typedef std::vector<std::string> BookIdCollection;
typedef std::map<std::string, int> AttributeCounts;
@ -368,6 +381,24 @@ class Library : private LibraryBase
const std::vector<std::string>& tags = {},
size_t maxSize = 0) const;
/**
* Return the current revision of the library.
*
* The revision of the library is updated (incremented by one) only by
* the addBook() operation.
*
* @return Current revision of the library.
*/
LibraryRevision getRevision() const;
/**
* Remove books that have not been updated since the specified revision.
*
* @param rev the library revision to use
* @return Count of books that were removed by this operation.
*/
uint32_t removeBooksNotUpdatedSince(LibraryRevision rev);
friend class OPDSDumper;
friend class libXMLDumper;