1 #ifndef BABELTRACE_GRAPH_CONNECTION_INTERNAL_H
2 #define BABELTRACE_GRAPH_CONNECTION_INTERNAL_H
5 * Copyright 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
7 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28 #include <babeltrace/graph/connection.h>
29 #include <babeltrace/graph/notification-iterator.h>
30 #include <babeltrace/graph/notification-iterator-internal.h>
31 #include <babeltrace/object-internal.h>
32 #include <babeltrace/assert-internal.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 notification iterators that were
55 * created on this connection.
59 bool notified_upstream_port_connected
;
60 bool notified_upstream_port_disconnected
;
61 bool notified_downstream_port_connected
;
62 bool notified_downstream_port_disconnected
;
63 bool notified_graph_ports_connected
;
64 bool notified_graph_ports_disconnected
;
68 struct bt_connection
*bt_connection_create(struct bt_graph
*graph
,
69 struct bt_port
*upstream_port
,
70 struct bt_port
*downstream_port
);
73 void bt_connection_end(struct bt_connection
*conn
, bool try_remove_from_graph
);
76 void bt_connection_remove_iterator(struct bt_connection
*conn
,
77 struct bt_self_component_port_input_notification_iterator
*iterator
);
80 struct bt_graph
*bt_connection_borrow_graph(struct bt_connection
*conn
)
83 return (void *) conn
->base
.parent
;
86 #endif /* BABELTRACE_GRAPH_CONNECTION_INTERNAL_H */