1 #ifndef BABELTRACE_COMPONENT_CONNECTION_INTERNAL_H
2 #define BABELTRACE_COMPONENT_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/private-connection.h>
33 #include <babeltrace/object-internal.h>
38 struct bt_connection
{
40 * The graph is a connection's parent and the connection is the parent
41 * of all iterators it has created.
43 struct bt_object base
;
45 * Weak references are held to both ports. Their existence is guaranteed
46 * by the existence of the graph and thus, of their respective
49 /* Downstream port. */
50 struct bt_port
*downstream_port
;
52 struct bt_port
*upstream_port
;
55 * Weak references to all the notification iterators that were
56 * created on this connection.
62 struct bt_connection
*bt_connection_from_private(
63 struct bt_private_connection
*private_connection
)
65 return (void *) private_connection
;
69 struct bt_private_connection
*bt_private_connection_from_connection(
70 struct bt_connection
*connection
)
72 return (void *) connection
;
76 struct bt_connection
*bt_connection_create(struct bt_graph
*graph
,
77 struct bt_port
*upstream_port
,
78 struct bt_port
*downstream_port
);
81 void bt_connection_end(struct bt_connection
*conn
, bool try_remove_from_graph
);
84 void bt_connection_remove_iterator(struct bt_connection
*conn
,
85 struct bt_notification_iterator
*iterator
);
88 struct bt_graph
*bt_connection_borrow_graph(struct bt_connection
*conn
)
91 return (void *) conn
->base
.parent
;
95 enum bt_connection_status
96 bt_connection_status_from_notification_iterator_status(
97 enum bt_notification_iterator_status iter_status
)
99 switch (iter_status
) {
100 case BT_NOTIFICATION_ITERATOR_STATUS_CANCELED
:
101 return BT_CONNECTION_STATUS_ERROR
;
102 case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN
:
103 return BT_CONNECTION_STATUS_ERROR
;
104 case BT_NOTIFICATION_ITERATOR_STATUS_END
:
105 return BT_CONNECTION_STATUS_ERROR
;
106 case BT_NOTIFICATION_ITERATOR_STATUS_OK
:
107 return BT_CONNECTION_STATUS_OK
;
108 case BT_NOTIFICATION_ITERATOR_STATUS_INVALID
:
109 return BT_CONNECTION_STATUS_INVALID
;
110 case BT_NOTIFICATION_ITERATOR_STATUS_ERROR
:
111 return BT_CONNECTION_STATUS_ERROR
;
112 case BT_NOTIFICATION_ITERATOR_STATUS_NOMEM
:
113 return BT_CONNECTION_STATUS_NOMEM
;
114 case BT_NOTIFICATION_ITERATOR_STATUS_UNSUPPORTED
:
115 return BT_CONNECTION_STATUS_ERROR
;
118 BT_LOGF("Unknown notification iterator status: status=%d",
126 const char *bt_connection_status_string(enum bt_connection_status status
)
129 case BT_CONNECTION_STATUS_GRAPH_IS_CANCELED
:
130 return "BT_CONNECTION_STATUS_GRAPH_IS_CANCELED";
131 case BT_CONNECTION_STATUS_OK
:
132 return "BT_CONNECTION_STATUS_OK";
133 case BT_CONNECTION_STATUS_INVALID
:
134 return "BT_CONNECTION_STATUS_INVALID";
135 case BT_CONNECTION_STATUS_ERROR
:
136 return "BT_CONNECTION_STATUS_ERROR";
137 case BT_CONNECTION_STATUS_NOMEM
:
138 return "BT_CONNECTION_STATUS_NOMEM";
139 case BT_CONNECTION_STATUS_IS_ENDED
:
140 return "BT_CONNECTION_STATUS_IS_ENDED";
146 #endif /* BABELTRACE_COMPONENT_CONNECTION_INTERNAL_H */