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aio: add AioPollFn and io_poll() interface

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The new AioPollFn io_poll() argument to aio_set_fd_handler() and
aio_set_event_handler() is used in the next patch.

Keep this code change separate due to the number of files it touches.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20161201192652.9509-3-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2016-12-01 19:26:41 +00:00
parent 721671ade7
commit f6a51c84cd
17 changed files with 56 additions and 48 deletions
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9
nbd/server.c
View file

@ -1366,19 +1366,18 @@ static void nbd_restart_write(void *opaque)
static void nbd_set_handlers(NBDClient *client)
{
if (client->exp && client->exp->ctx) {
aio_set_fd_handler(client->exp->ctx, client->sioc->fd,
true,
aio_set_fd_handler(client->exp->ctx, client->sioc->fd, true,
client->can_read ? nbd_read : NULL,
client->send_coroutine ? nbd_restart_write : NULL,
client);
NULL, client);
}
}
static void nbd_unset_handlers(NBDClient *client)
{
if (client->exp && client->exp->ctx) {
aio_set_fd_handler(client->exp->ctx, client->sioc->fd,
true, NULL, NULL, NULL);
aio_set_fd_handler(client->exp->ctx, client->sioc->fd, true, NULL,
NULL, NULL, NULL);
}
}