src/add-ons/kernel/file_systems/nfs4/InodeIdMap.cpp

   1 /*
   2  * Copyright 2013 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
   9
  10 #include "InodeIdMap.h"
  11
  12
  13 status_t
  14 InodeIdMap::AddName(FileInfo& fileInfo, InodeNames* parent,
  15         const char* name, ino_t id)
  16 {
  17         MutexLocker _(fLock);
  18         AVLTreeMap<ino_t, FileInfo>::Iterator iterator = fMap.Find(id);
  19         if (iterator.HasCurrent()) {
  20                 if (fileInfo.fHandle == iterator.Current().fHandle) {
  21                         return iterator.CurrentValuePointer()->fNames->AddName(parent,
  22                                 name);
  23                 }
  24         }
  25
  26         fMap.Remove(id);
  27         fileInfo.fNames = new InodeNames;
  28         if (fileInfo.fNames == NULL)
  29                 return B_NO_MEMORY;
  30
  31         fileInfo.fNames->fHandle = fileInfo.fHandle;
  32         status_t result = fileInfo.fNames->AddName(parent, name);
  33         if (result != B_OK) {
  34                 delete fileInfo.fNames;
  35                 return result;
  36         }
  37
  38         return fMap.Insert(id, fileInfo);
  39 }
  40
  41
  42 bool
  43 InodeIdMap::RemoveName(ino_t id, InodeNames* parent, const char* name)
  44 {
  45         ASSERT(name != NULL);
  46
  47         MutexLocker _(fLock);
  48         AVLTreeMap<ino_t, FileInfo>::Iterator iterator = fMap.Find(id);
  49         if (!iterator.HasCurrent())
  50                 return true;
  51
  52         FileInfo* fileInfo = iterator.CurrentValuePointer();
  53
  54         return fileInfo->fNames->RemoveName(parent, name);
  55 }
  56
  57
  58 status_t
  59 InodeIdMap::RemoveEntry(ino_t id)
  60 {
  61         MutexLocker _(fLock);
  62         return fMap.Remove(id);
  63 }
  64
  65
  66 status_t
  67 InodeIdMap::GetFileInfo(FileInfo* fileInfo, ino_t id)
  68 {
  69         ASSERT(fileInfo != NULL);
  70
  71         MutexLocker _(fLock);
  72         AVLTreeMap<ino_t, FileInfo>::Iterator iterator = fMap.Find(id);
  73         if (!iterator.HasCurrent())
  74                 return B_ENTRY_NOT_FOUND;
  75
  76         *fileInfo = iterator.Current();
  77         if (fileInfo->fNames->fNames.IsEmpty())
  78                 return B_ENTRY_NOT_FOUND;
  79         return B_OK;
  80 }
  81