include/library/filelist.hpp

   1 #ifndef _library__filelist__hpp__included__
   2 #define _library__filelist__hpp__included__
   3
   4 #include <map>
   5 #include <set>
   6 #include <string>
   7
   8 /**
   9  * List of files.
  10  */
  11 class filelist
  12 {
  13 public:
  14 /**
  15  * Create a new list, backed by specific file.
  16  */
  17         filelist(const std::string& backingfile, const std::string& directory);
  18 /**
  19  * Dtor.
  20  */
  21         ~filelist();
  22 /**
  23  * Enumerate the files on the list. Files that don't have matching timestamp are auto-removed.
  24  */
  25         std::set<std::string> enumerate();
  26 /**
  27  * Add a file to the list. Current timestamp is used to mark version.
  28  */
  29         void add(const std::string& filename);
  30 /**
  31  * Remove a file from the list.
  32  */
  33         void remove(const std::string& filename);
  34 /**
  35  * Rename a file from the list.
  36  */
  37         void rename(const std::string& oldname, const std::string& newname);
  38 private:
  39         filelist(const filelist&);
  40         filelist& operator=(const filelist&);
  41         std::map<std::string, int64_t> readfile();
  42         void check_stale(std::map<std::string, int64_t>& data);
  43         void writeback(const std::map<std::string, int64_t>& data);
  44         std::string backingfile;
  45         std::string directory;
  46 };
  47
  48 #endif