src/add-ons/kernel/file_systems/nfs4/RootInode.h

   1 /*
   2  * Copyright 2012 Haiku, Inc. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Paweł Dziepak, pdziepak@quarnos.org
   7  */
   8 #ifndef ROOTINODE_H
   9 #define ROOTINODE_H
  10
  11
  12 #include <fs_info.h>
  13
  14 #include "Inode.h"
  15
  16
  17 class RootInode : public Inode {
  18 public:
  19                                                                 RootInode();
  20                                                                 ~RootInode();
  21
  22         virtual const char*                     Name() const;
  23         inline  void                            SetName(const char* name);
  24
  25                         status_t                        ReadInfo(struct fs_info* info);
  26         inline  void                            MakeInfoInvalid();
  27
  28         inline  uint32                          IOSize();
  29
  30                         bool                            ProbeMigration();
  31                         status_t                        GetLocations(AttrValue** attr);
  32
  33 private:
  34                         struct fs_info          fInfoCache;
  35                         mutex                           fInfoCacheLock;
  36                         time_t                          fInfoCacheExpire;
  37
  38                         const char*                     fName;
  39
  40                         uint32                          fIOSize;
  41
  42                         status_t                        _UpdateInfo(bool force = false);
  43
  44 };
  45
  46
  47 inline void
  48 RootInode::MakeInfoInvalid()
  49 {
  50         fInfoCacheExpire = 0;
  51 }
  52
  53
  54 inline uint32
  55 RootInode::IOSize()
  56 {
  57         if (fIOSize == 0)
  58                 _UpdateInfo(true);
  59         return fIOSize;
  60 }
  61
  62
  63 inline void
  64 RootInode::SetName(const char* name)
  65 {
  66         ASSERT(name != NULL);
  67
  68         free(const_cast<char*>(fName));
  69         fName = strdup(name);
  70 }
  71
  72
  73 #endif  // ROOTINODE_H
  74