Error
File::Duplicate (const File &rhs)
{
Error error;
if (IsValid ())
Close();
if (rhs.DescriptorIsValid())
{
#ifdef _WIN32
m_descriptor = ::_dup(rhs.GetDescriptor());
#else
m_descriptor = ::fcntl(rhs.GetDescriptor(), F_DUPFD);
#endif
if (!DescriptorIsValid())
error.SetErrorToErrno();
else
{
m_options = rhs.m_options;
m_own_descriptor = true;
}
}
else
{
error.SetErrorString ("invalid file to duplicate");
}
return error;
}
