StorageFactory/interface/LocalFileSystem.h

0001 #ifndef STORAGE_FACTORY_LOCAL_FILE_SYSTEM_H
0002 #define STORAGE_FACTORY_LOCAL_FILE_SYSTEM_H
0003 #include <vector>
0004 #include <string>
0005 #include <utility>
0006
0007 struct stat;
0008 struct statfs;
0009 struct mntent;
0010
0011 namespace edm::storage {
0012   class LocalFileSystem {
0013     struct FSInfo;
0014
0015   public:
0016     LocalFileSystem(void);
0017
0018     // undefined, no semantics
0019     LocalFileSystem(LocalFileSystem &) = delete;
0020     void operator=(LocalFileSystem &) = delete;
0021
0022     ~LocalFileSystem(void);
0023
0024     bool isLocalPath(const std::string &path) const;
0025     std::pair<std::string, std::string> findCachePath(const std::vector<std::string> &paths, double minFreeSpace) const;
0026
0027   private:
0028     int readFSTypes(void);
0029     FSInfo *initFSInfo(void *p);
0030     int initFSList(void);
0031     int statFSInfo(FSInfo *i) const;
0032     FSInfo *findMount(const char *path, struct statfs *sfs, struct stat *s, std::vector<std::string> &) const;
0033
0034     std::vector<FSInfo *> fs_;
0035     std::vector<std::string> fstypes_;
0036   };
0037 }  // namespace edm::storage
0038 #endif  // STORAGE_FACTORY_LOCAL_FILE_SYSTEM_H