Corinna Vinschen wrote:
On Jul 15 01:20, Mark Geisert wrote:
+ if (aio)
+ status = NtReadFile (prw_handle, aiocb->aio_win_event, NULL, NULL,
+>aio_win_iosb, buf, count, , NULL);
+ else
+ status = NtReadFile (prw_handle, NULL, NULL, NULL, , buf,
On Jul 15 01:20, Mark Geisert wrote:
> + if (aio)
> + status = NtReadFile (prw_handle, aiocb->aio_win_event, NULL, NULL,
> + >aio_win_iosb, buf, count, , NULL);
> + else
> + status = NtReadFile (prw_handle, NULL, NULL, NULL, , buf, count,
> +
This code is where the AIO implementation is wired into existing Cygwin
mechanisms for file and device I/O: the fhandler* functions. It makes
use of an existing internal routine prw_open to supply a "shadow fd"
that permits asynchronous operations on a file the user app accesses
via its own fd.
