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8abe313a JG |
1 | /* |
2 | * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License, version 2 only, as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | */ | |
17 | ||
18 | #ifndef NOTIFICATION_THREAD_INTERNAL_H | |
19 | #define NOTIFICATION_THREAD_INTERNAL_H | |
20 | ||
21 | #include <lttng/ref-internal.h> | |
22 | #include <urcu/rculfhash.h> | |
23 | #include <unistd.h> | |
24 | ||
25 | struct channel_key { | |
26 | uint64_t key; | |
27 | enum lttng_domain_type domain; | |
28 | }; | |
29 | ||
30 | struct session_info { | |
31 | struct lttng_ref ref; | |
32 | char *name; | |
33 | uid_t uid; | |
34 | gid_t gid; | |
35 | /* | |
36 | * Back-ref (weak) to all channels in this session. | |
37 | * The hashtable's key is a hash of (struct channel_key) and | |
38 | * the value is of type (struct channel_info *). | |
39 | */ | |
40 | struct cds_lfht *channel_infos_ht; | |
41 | /* Node in the notification thread state's sessions_ht. */ | |
42 | struct cds_lfht_node sessions_ht_node; | |
43 | }; | |
44 | ||
45 | struct channel_info { | |
46 | struct channel_key key; | |
47 | char *name; | |
48 | uint64_t capacity; | |
49 | /* | |
50 | * A channel info holds a reference (lttng_ref) on session_info. | |
51 | * session_info, in return, holds a weak reference to the channel. | |
52 | */ | |
53 | struct session_info *session_info; | |
54 | /* Node in the notification thread state's channels_ht. */ | |
55 | struct cds_lfht_node channels_ht_node; | |
56 | /* Node in the session_info's channels_ht. */ | |
57 | struct cds_lfht_node session_info_channels_ht_node; | |
58 | }; | |
59 | ||
60 | #endif /* NOTIFICATION_THREAD_INTERNAL_H */ |