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only allocate a file if it's not already allocated (windows)

This commit is contained in:
Arvid Norberg 2010-03-20 08:18:49 +00:00
parent c9f7ba495f
commit b2484ead10
1 changed files with 13 additions and 7 deletions
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20
src/file.cpp
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@ -1478,15 +1478,21 @@ namespace libtorrent
return false;
}
}
#if _WIN32_WINNT >= 0x501
// TODO: again, only allocate the space if the file
// is not fully allocated
#if _WIN32_WINNT >= 0x501
if ((m_open_mode & sparse) == 0)
{
// if the user has permissions, avoid filling
// the file with zeroes, but just fill it with
// garbage instead
SetFileValidData(m_file_handle, offs.QuadPart);
// only allocate the space if the file
// is not fully allocated
offs.LowPart = GetCompressedFileSize(m_path.c_str(), &offs.HighPart);
ec.assign(GetLastError(), get_system_category());
if (ec) return false;
if (offs.QuadPart != s)
{
// if the user has permissions, avoid filling
// the file with zeroes, but just fill it with
// garbage instead
SetFileValidData(m_file_handle, offs.QuadPart);
}
}
#endif
#else