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added FileTree class to implement a compact representation of file hierarchies

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csoler 2017-10-18 00:04:04 +02:00
parent 847c1b2bce
commit f98edd400e
7 changed files with 328 additions and 17 deletions
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30
libretroshare/src/retroshare/rsfiles.h
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@ -134,6 +134,36 @@ struct SharedDirStats
uint64_t total_shared_size ;
};
// This class represents a tree of directories and files, only with their names size and hash. It is used to create collection links in the GUI
// and to transmit directory information between services. This class is independent from the existing FileHierarchy classes used in storage because
// we need a very copact serialization and storage size since we create links with it. Besides, we cannot afford to risk the leak of other local information
// by using the orignal classes.
class FileTree
{
public:
virtual ~FileTree() {}
static FileTree *create(void *ref) ;
static FileTree *create(const std::string& radix64_string) ;
virtual std::string toRadix64() const =0 ;
// These methods allow the user to browse the hierarchy
struct FileData {
std::string name ;
uint64_t size ;
RsFileHash hash ;
};
virtual uint32_t root() const { return 0;}
virtual bool getDirectoryContent(uint32_t index,std::vector<uint32_t>& subdirs,std::vector<FileData>& subfiles) const = 0;
uint32_t mTotalFiles ;
uint64_t mTotalSize ;
};
class RsFiles
{
public: