1 #ifndef BABELTRACE_GRAPH_CONNECTION_INTERNAL_H
2 #define BABELTRACE_GRAPH_CONNECTION_INTERNAL_H
5 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
6 * Copyright 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 #include <babeltrace2/graph/connection.h>
28 #include "lib/object.h"
29 #include "common/assert.h"
30 #include "common/macros.h"
33 #include "message/iterator.h"
37 struct bt_connection
{
39 * The graph is a connection's parent and the connection is the parent
40 * of all iterators it has created.
42 struct bt_object base
;
44 * Weak references are held to both ports. Their existence is guaranteed
45 * by the existence of the graph and thus, of their respective
48 /* Downstream port. */
49 struct bt_port
*downstream_port
;
51 struct bt_port
*upstream_port
;
54 * Weak references to all the message iterators that were
55 * created on this connection.
59 bool notified_upstream_port_connected
;
60 bool notified_downstream_port_connected
;
61 bool notified_graph_ports_connected
;
65 struct bt_connection
*bt_connection_create(struct bt_graph
*graph
,
66 struct bt_port
*upstream_port
,
67 struct bt_port
*downstream_port
);
70 void bt_connection_end(struct bt_connection
*conn
, bool try_remove_from_graph
);
73 void bt_connection_remove_iterator(struct bt_connection
*conn
,
74 struct bt_message_iterator
*iterator
);
77 struct bt_graph
*bt_connection_borrow_graph(struct bt_connection
*conn
)
80 return (void *) conn
->base
.parent
;
83 #endif /* BABELTRACE_GRAPH_CONNECTION_INTERNAL_H */