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server: Introduce pipe message queue.
Signed-off-by: Jacek Caban <jacek@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -65,6 +65,14 @@ enum pipe_state
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struct named_pipe;
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struct pipe_message
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{
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struct list entry; /* entry in message queue */
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data_size_t read_pos; /* already read bytes */
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struct iosb *iosb; /* message iosb */
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struct async *async; /* async of pending write */
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};
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struct pipe_end
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{
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struct object obj; /* object header */
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@ -72,6 +80,7 @@ struct pipe_end
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unsigned int flags; /* pipe flags */
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struct pipe_end *connection; /* the other end of the pipe */
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data_size_t buffer_size;/* size of buffered data that doesn't block caller */
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struct list message_queue;
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};
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struct pipe_server
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@ -379,6 +388,13 @@ static void notify_empty( struct pipe_server *server )
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fd_async_wake_up( server->pipe_end.fd, ASYNC_TYPE_WAIT, STATUS_SUCCESS );
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}
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static void free_message( struct pipe_message *message )
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{
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list_remove( &message->entry );
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if (message->iosb) release_object( message->iosb );
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free( message );
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}
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static void pipe_end_disconnect( struct pipe_end *pipe_end, unsigned int status )
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{
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struct pipe_end *connection = pipe_end->connection;
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@ -409,6 +425,18 @@ static void do_disconnect( struct pipe_server *server )
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server->pipe_end.fd = NULL;
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}
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static void pipe_end_destroy( struct pipe_end *pipe_end )
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{
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struct pipe_message *message;
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while (!list_empty( &pipe_end->message_queue ))
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{
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message = LIST_ENTRY( list_head(&pipe_end->message_queue), struct pipe_message, entry );
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assert( !message->async );
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free_message( message );
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}
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}
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static void pipe_server_destroy( struct object *obj)
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{
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struct pipe_server *server = (struct pipe_server *)obj;
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@ -423,6 +451,7 @@ static void pipe_server_destroy( struct object *obj)
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do_disconnect( server );
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}
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pipe_end_destroy( &server->pipe_end );
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if (server->client)
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{
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server->client->server = NULL;
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@ -467,6 +496,8 @@ static void pipe_client_destroy( struct object *obj)
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server->client = NULL;
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client->server = NULL;
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}
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pipe_end_destroy( &client->pipe_end );
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if (client->pipe_end.fd) release_object( client->pipe_end.fd );
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}
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@ -550,7 +581,7 @@ static int pipe_data_remaining( struct pipe_server *server )
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assert( server->client );
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if (use_server_io( &server->pipe_end ))
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return 0;
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return !list_empty( &server->client->pipe_end.message_queue );
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fd = get_unix_fd( server->client->pipe_end.fd );
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if (fd < 0)
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@ -721,6 +752,7 @@ static void init_pipe_end( struct pipe_end *pipe_end, unsigned int pipe_flags, d
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pipe_end->flags = pipe_flags;
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pipe_end->connection = NULL;
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pipe_end->buffer_size = buffer_size;
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list_init( &pipe_end->message_queue );
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}
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static struct pipe_server *create_pipe_server( struct named_pipe *pipe, unsigned int options,
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