//dstream<<"1 z.avail_in="<<z.avail_in<<std::endl;
status = inflate(&z, Z_NO_FLUSH);
//dstream<<"2 z.avail_in="<<z.avail_in<<std::endl;
//dstream<<"1 z.avail_in="<<z.avail_in<<std::endl;
status = inflate(&z, Z_NO_FLUSH);
//dstream<<"2 z.avail_in="<<z.avail_in<<std::endl;