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      1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef LIBRARIES_NACL_IO_GETDENTS_HELPER_H_
      6 #define LIBRARIES_NACL_IO_GETDENTS_HELPER_H_
      7 
      8 #include <vector>
      9 
     10 #include "nacl_io/error.h"
     11 #include "nacl_io/osdirent.h"
     12 
     13 namespace nacl_io {
     14 
     15 class GetDentsHelper {
     16  public:
     17   // Initialize the helper without any defaults.
     18   GetDentsHelper();
     19   GetDentsHelper(ino_t curdir_ino, ino_t parentdir_ino);
     20 
     21   void Reset();
     22   void AddDirent(ino_t ino, const char* name, size_t namelen);
     23   Error GetDents(size_t offs, dirent* pdir, size_t size, int* out_bytes) const;
     24 
     25  private:
     26   void Initialize();
     27 
     28   std::vector<dirent> dirents_;
     29   ino_t curdir_ino_;
     30   ino_t parentdir_ino_;
     31   bool init_defaults_;
     32 };
     33 
     34 }  // namespace nacl_io
     35 
     36 #endif  // LIBRARIES_NACL_IO_GETDENTS_HELPER_H_
     37