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Directory.cpp

Go to the documentation of this file.

#include "OSDependent/Directory.h"

Directory::Directory(const char *name) :
_handle(-1L),
_hasFirst(false),
_isRewound(false),
_name(name)
{
}

Directory::~Directory()
{
  close();
}

int
Directory::open()
{
  if (_handle != -1L)
    return 0;
  std::string name = _name;
  name += "\\*";
  _handle = ::_findfirst(name.c_str(), &_data);
        if (_handle == -1L)
    return -1;
  _hasFirst = true;
  _isRewound = false;
  return 0;
}

int
Directory::close()
{
  if (_handle == -1L)
    return 0;
  if (::_findclose(_handle) != 0)
    return -1;
  _handle = -1L;
  return 0;
}

int
Directory::rewind()
{
        if (_handle == -1L)
    return -1;
        if (close() < 0)
    return -1;
  _isRewound = true;
  return 0;
}

DirectoryEntry *
Directory::read()
{
  static DirectoryEntry entry;
  if (_isRewound) {
    if (open() < 0)
      return NULL;
  }
  if (_handle == -1L)
    return NULL;
  if (_hasFirst) {
    _hasFirst = false;
  } else if (::_findnext(_handle, &_data) != 0) {
                        return NULL;    // end of entries
        }
        entry.name      = _data.name;
        entry.size      = _data.size;
        entry.atime     = _data.time_access;
        entry.ctime     = _data.time_create;
        entry.mtime     = _data.time_write;
        entry.directory = (_data.attrib & _A_SUBDIR) ? true : false;

        return &entry;
}

int
Directory::seek(int pos)
{
  if (rewind() < 0)
    return -1;
  if (open() < 0)
    return -1;
  for (int i = 0; i < pos; i++) {
    if (::_findnext(_handle, &_data) == 0)
      return -1;
  }
        return 0;
}

const char *
Directory::name() const
{
  return _name.c_str();
}

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