NSLDAPI_ERRNO_IO_INPROGRESS
#define NSLDAPI_ERRNO_IO_INPROGRESS( e ) ((e) == EWOULDBLOCK || (e) == EAGAIN)
#define NSLDAPI_ERRNO_IO_INPROGRESS( e ) ((e) == EWOULDBLOCK || (e) == EINPROGRESS || (e) == EAGAIN)
#define NSLDAPI_ERRNO_IO_INPROGRESS( e ) ((e) == EWOULDBLOCK || (e) == EINPROGRESS)