Zebediah Figura : server: Mark the socket as cacheable when it is connected, marked listening, or created as connectionless.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 89f77a93a6c96896d90c943bc3e82139114cf58c
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=89f77a93a6c96896d90c943bc3e82139114cf58c

Author: Zebediah Figura <z.figura12 at gmail.com>
Date:   Wed May 26 23:36:47 2021 -0500

server: Mark the socket as cacheable when it is connected, marked listening, or created as connectionless.

Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 server/sock.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/server/sock.c b/server/sock.c
index 3925018c7a5..6e9ef3d9d97 100644
--- a/server/sock.c
+++ b/server/sock.c
@@ -416,7 +416,6 @@ static int sock_reselect( struct sock *sock )
         if (!(sock->state & ~FD_WINE_NONBLOCKING)) return 0;
         /* ok, it is, attach it to the wineserver's main poll loop */
         sock->polling = 1;
-        allow_fd_caching( sock->fd );
     }
     /* update condition mask */
     set_fd_events( sock->fd, ev );
@@ -1358,7 +1357,11 @@ static int init_socket( struct sock *sock, int family, int type, int protocol, u
     {
         return -1;
     }
-    sock_reselect( sock );
+
+    /* We can't immediately allow caching for a connection-mode socket, since it
+     * might be accepted into (changing the underlying fd object.) */
+    if (sock->type != WS_SOCK_STREAM) allow_fd_caching( sock->fd );
+
     return 0;
 }
 
@@ -1750,6 +1753,9 @@ static int sock_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
         sock->state |= FD_WINE_LISTENING;
         sock->state &= ~(FD_CONNECT | FD_WINE_CONNECTED);
 
+        /* a listening socket can no longer be accepted into */
+        allow_fd_caching( sock->fd );
+
         /* we may already be selecting for FD_ACCEPT */
         sock_reselect( sock );
         return 0;
@@ -1790,6 +1796,9 @@ static int sock_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
             return 0;
         }
 
+        /* a connected or connecting socket can no longer be accepted into */
+        allow_fd_caching( sock->fd );
+
         sock->pending_events &= ~(FD_CONNECT | FD_READ | FD_WRITE);
         sock->reported_events &= ~(FD_CONNECT | FD_READ | FD_WRITE);