commit e5a43fa9c804367520e98f051bf9a19008be5405
author Jacek Caban <jacek@codeweavers.com> Wed Oct 04 15:18:02 2017 +0200
committer Alexandre Julliard <julliard@winehq.org> Wed Oct 04 21:34:47 2017 +0200
tree d7407a6dcd8fdcd94d510663289a24e7512cb75b
parent f68bea526f0edf5abab1e677aaa968dff1c2e51a

server: Don't queue zero size writes in byte mode.

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

server/named_pipe.c

diff --git a/server/named_pipe.c b/server/named_pipe.c
index 2141f44..a98041e 100644
--- a/server/named_pipe.c
+++ b/server/named_pipe.c
@@ -863,6 +863,8 @@
         return 0;
     }
 
+    if (!(write_end->flags & NAMED_PIPE_MESSAGE_STREAM_WRITE) && !get_req_data_size()) return 1;
+
     if (!(message = mem_alloc( sizeof(*message) ))) return 0;
     message->async = (struct async *)grab_object( async );
     message->iosb = async_get_iosb( async );