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6ac74c0c PP |
1 | #ifndef BABELTRACE_GRAPH_CONNECTION_INTERNAL_H |
2 | #define BABELTRACE_GRAPH_CONNECTION_INTERNAL_H | |
784cdc68 JG |
3 | |
4 | /* | |
5 | * BabelTrace - Component Connection Internal | |
6 | * | |
7 | * Copyright 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
8 | * | |
9 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
10 | * | |
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: | |
17 | * | |
18 | * The above copyright notice and this permission notice shall be included in | |
19 | * all copies or substantial portions of the Software. | |
20 | * | |
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 | |
27 | * SOFTWARE. | |
28 | */ | |
29 | ||
b2e0c907 | 30 | #include <babeltrace/graph/connection.h> |
73d5c1ad | 31 | #include <babeltrace/graph/notification-iterator.h> |
90157d89 | 32 | #include <babeltrace/graph/notification-iterator-internal.h> |
b2e0c907 | 33 | #include <babeltrace/graph/private-connection.h> |
784cdc68 | 34 | #include <babeltrace/object-internal.h> |
f6ccaed9 | 35 | #include <babeltrace/assert-internal.h> |
c42ea0af | 36 | #include <stdbool.h> |
784cdc68 JG |
37 | |
38 | struct bt_graph; | |
39 | ||
40 | struct bt_connection { | |
41 | /* | |
42 | * The graph is a connection's parent and the connection is the parent | |
43 | * of all iterators it has created. | |
44 | */ | |
45 | struct bt_object base; | |
46 | /* | |
47 | * Weak references are held to both ports. Their existence is guaranteed | |
48 | * by the existence of the graph and thus, of their respective | |
49 | * components. | |
50 | */ | |
51 | /* Downstream port. */ | |
72b913fb | 52 | struct bt_port *downstream_port; |
784cdc68 | 53 | /* Upstream port. */ |
72b913fb | 54 | struct bt_port *upstream_port; |
bd14d768 PP |
55 | |
56 | /* | |
57 | * Weak references to all the notification iterators that were | |
58 | * created on this connection. | |
59 | */ | |
60 | GPtrArray *iterators; | |
bf55043c PP |
61 | |
62 | bool notified_upstream_port_connected; | |
63 | bool notified_downstream_port_connected; | |
64 | bool notified_graph_ports_connected; | |
784cdc68 JG |
65 | }; |
66 | ||
890882ef PP |
67 | static inline |
68 | struct bt_private_connection *bt_private_connection_from_connection( | |
69 | struct bt_connection *connection) | |
70 | { | |
71 | return (void *) connection; | |
72 | } | |
73 | ||
784cdc68 JG |
74 | BT_HIDDEN |
75 | struct bt_connection *bt_connection_create(struct bt_graph *graph, | |
72b913fb PP |
76 | struct bt_port *upstream_port, |
77 | struct bt_port *downstream_port); | |
78 | ||
79 | BT_HIDDEN | |
c42ea0af | 80 | void bt_connection_end(struct bt_connection *conn, bool try_remove_from_graph); |
784cdc68 | 81 | |
bd14d768 PP |
82 | BT_HIDDEN |
83 | void bt_connection_remove_iterator(struct bt_connection *conn, | |
90157d89 | 84 | struct bt_notification_iterator_private_connection *iterator); |
bd14d768 | 85 | |
c28d097c PP |
86 | static inline |
87 | struct bt_graph *bt_connection_borrow_graph(struct bt_connection *conn) | |
88 | { | |
f6ccaed9 | 89 | BT_ASSERT(conn); |
c28d097c PP |
90 | return (void *) conn->base.parent; |
91 | } | |
92 | ||
73d5c1ad PP |
93 | static inline |
94 | enum bt_connection_status | |
95 | bt_connection_status_from_notification_iterator_status( | |
96 | enum bt_notification_iterator_status iter_status) | |
97 | { | |
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; | |
115 | default: | |
116 | #ifdef BT_LOGF | |
117 | BT_LOGF("Unknown notification iterator status: status=%d", | |
118 | iter_status); | |
119 | #endif | |
120 | abort(); | |
121 | } | |
122 | } | |
123 | ||
fed72692 PP |
124 | static inline |
125 | const char *bt_connection_status_string(enum bt_connection_status status) | |
126 | { | |
127 | switch (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"; | |
140 | default: | |
141 | return "(unknown)"; | |
142 | } | |
143 | } | |
144 | ||
6ac74c0c | 145 | #endif /* BABELTRACE_GRAPH_CONNECTION_INTERNAL_H */ |