server: Do not signal read bits if there are read asyncs alerted.

Asyncs which are alerted but not "waiting" may still consume all data, and we shouldn't signal AFD_POLL_READ or AFD_POLL_OOB in that case. Signed-off-by: Zebediah Figura <zfigura@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

server: Do not signal read bits if there are read asyncs alerted.
30a56639 · Zebediah Figura · Alexandre Julliard · 04b33ef0 · 30a56639
Commit 30a56639 authored May 05, 2022 by Zebediah Figura Committed by Alexandre Julliard May 05, 2022
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sock.c server/sock.c +6 -3

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--- a/server/sock.c
+++ b/server/sock.c
@@ -1001,10 +1001,13 @@ static int sock_dispatch_asyncs( struct sock *sock, int event, int error )
    if ((event & POLLOUT) && sock->connect_req && sock->connect_req->iosb->status == STATUS_PENDING)
        complete_async_connect( sock );

-    if (event & (POLLIN | POLLPRI) && async_waiting( &sock->read_q ))
+    if ((event & (POLLIN | POLLPRI)) && async_queued( &sock->read_q ))
    {
-        if (debug_level) fprintf( stderr, "activating read queue for socket %p\n", sock );
-        async_wake_up( &sock->read_q, STATUS_ALERTED );
+        if (async_waiting( &sock->read_q ))
+        {
+            if (debug_level) fprintf( stderr, "activating read queue for socket %p\n", sock );
+            async_wake_up( &sock->read_q, STATUS_ALERTED );
+        }
        event &= ~(POLLIN | POLLPRI);
    }