1 #ifndef BABELTRACE_GRAPH_CONNECTION_INTERNAL_H
2 #define BABELTRACE_GRAPH_CONNECTION_INTERNAL_H
5 * BabelTrace - Component Connection Internal
7 * Copyright 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
9 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
11 * Permission is hereby granted, free of charge, to any person obtaining a copy
12 * of this software and associated documentation files (the "Software"), to deal
13 * in the Software without restriction, including without limitation the rights
14 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
15 * copies of the Software, and to permit persons to whom the Software is
16 * furnished to do so, subject to the following conditions:
18 * The above copyright notice and this permission notice shall be included in
19 * all copies or substantial portions of the Software.
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
24 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
26 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 #include <babeltrace/graph/connection.h>
31 #include <babeltrace/graph/notification-iterator.h>
32 #include <babeltrace/graph/notification-iterator-internal.h>
33 #include <babeltrace/graph/private-connection.h>
34 #include <babeltrace/object-internal.h>
35 #include <babeltrace/assert-internal.h>
40 struct bt_connection
{
42 * The graph is a connection's parent and the connection is the parent
43 * of all iterators it has created.
45 struct bt_object base
;
47 * Weak references are held to both ports. Their existence is guaranteed
48 * by the existence of the graph and thus, of their respective
51 /* Downstream port. */
52 struct bt_port
*downstream_port
;
54 struct bt_port
*upstream_port
;
57 * Weak references to all the notification iterators that were
58 * created on this connection.
62 bool notified_upstream_port_connected
;
63 bool notified_downstream_port_connected
;
64 bool notified_graph_ports_connected
;
68 struct bt_private_connection
*bt_private_connection_from_connection(
69 struct bt_connection
*connection
)
71 return (void *) connection
;
75 struct bt_connection
*bt_connection_create(struct bt_graph
*graph
,
76 struct bt_port
*upstream_port
,
77 struct bt_port
*downstream_port
);
80 void bt_connection_end(struct bt_connection
*conn
, bool try_remove_from_graph
);
83 void bt_connection_remove_iterator(struct bt_connection
*conn
,
84 struct bt_notification_iterator_private_connection
*iterator
);
87 struct bt_graph
*bt_connection_borrow_graph(struct bt_connection
*conn
)
90 return (void *) conn
->base
.parent
;
94 enum bt_connection_status
95 bt_connection_status_from_notification_iterator_status(
96 enum bt_notification_iterator_status iter_status
)
98 switch (iter_status
) {
99 case BT_NOTIFICATION_ITERATOR_STATUS_CANCELED
:
100 return BT_CONNECTION_STATUS_ERROR
;
101 case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN
:
102 return BT_CONNECTION_STATUS_ERROR
;
103 case BT_NOTIFICATION_ITERATOR_STATUS_END
:
104 return BT_CONNECTION_STATUS_ERROR
;
105 case BT_NOTIFICATION_ITERATOR_STATUS_OK
:
106 return BT_CONNECTION_STATUS_OK
;
107 case BT_NOTIFICATION_ITERATOR_STATUS_INVALID
:
108 return BT_CONNECTION_STATUS_INVALID
;
109 case BT_NOTIFICATION_ITERATOR_STATUS_ERROR
:
110 return BT_CONNECTION_STATUS_ERROR
;
111 case BT_NOTIFICATION_ITERATOR_STATUS_NOMEM
:
112 return BT_CONNECTION_STATUS_NOMEM
;
113 case BT_NOTIFICATION_ITERATOR_STATUS_UNSUPPORTED
:
114 return BT_CONNECTION_STATUS_ERROR
;
117 BT_LOGF("Unknown notification iterator status: status=%d",
125 const char *bt_connection_status_string(enum bt_connection_status status
)
128 case BT_CONNECTION_STATUS_GRAPH_IS_CANCELED
:
129 return "BT_CONNECTION_STATUS_GRAPH_IS_CANCELED";
130 case BT_CONNECTION_STATUS_OK
:
131 return "BT_CONNECTION_STATUS_OK";
132 case BT_CONNECTION_STATUS_INVALID
:
133 return "BT_CONNECTION_STATUS_INVALID";
134 case BT_CONNECTION_STATUS_ERROR
:
135 return "BT_CONNECTION_STATUS_ERROR";
136 case BT_CONNECTION_STATUS_NOMEM
:
137 return "BT_CONNECTION_STATUS_NOMEM";
138 case BT_CONNECTION_STATUS_IS_ENDED
:
139 return "BT_CONNECTION_STATUS_IS_ENDED";
145 #endif /* BABELTRACE_GRAPH_CONNECTION_INTERNAL_H */