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ab0ee2ca 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_COMMANDS_H | |
19 | #define NOTIFICATION_THREAD_COMMANDS_H | |
20 | ||
21 | #include <lttng/domain.h> | |
22 | #include <lttng/lttng-error.h> | |
23 | #include <urcu/rculfhash.h> | |
24 | #include "notification-thread.h" | |
8f5e7d40 | 25 | #include <common/waiter.h> |
ab0ee2ca JG |
26 | |
27 | struct notification_thread_data; | |
28 | struct lttng_trigger; | |
29 | ||
30 | enum notification_thread_command_type { | |
31 | NOTIFICATION_COMMAND_TYPE_REGISTER_TRIGGER, | |
32 | NOTIFICATION_COMMAND_TYPE_UNREGISTER_TRIGGER, | |
33 | NOTIFICATION_COMMAND_TYPE_ADD_CHANNEL, | |
34 | NOTIFICATION_COMMAND_TYPE_REMOVE_CHANNEL, | |
35 | NOTIFICATION_COMMAND_TYPE_QUIT, | |
36 | }; | |
37 | ||
38 | struct channel_key { | |
39 | uint64_t key; | |
40 | enum lttng_domain_type domain; | |
41 | }; | |
42 | ||
43 | struct channel_info { | |
44 | struct channel_key key; | |
45 | char *session_name; | |
46 | uid_t uid; | |
47 | gid_t gid; | |
48 | char *channel_name; | |
49 | uint64_t capacity; | |
50 | struct cds_lfht_node channels_ht_node; | |
51 | }; | |
52 | ||
53 | struct notification_thread_command { | |
54 | struct cds_list_head cmd_list_node; | |
55 | ||
56 | enum notification_thread_command_type type; | |
57 | union { | |
58 | /* Register/Unregister trigger. */ | |
59 | struct lttng_trigger *trigger; | |
60 | /* Add channel. */ | |
61 | struct channel_info add_channel; | |
62 | /* Remove channel. */ | |
63 | struct { | |
64 | uint64_t key; | |
65 | enum lttng_domain_type domain; | |
66 | } remove_channel; | |
67 | } parameters; | |
68 | ||
8f5e7d40 JG |
69 | /* lttng_waiter on which to wait for command reply (optional). */ |
70 | struct lttng_waiter reply_waiter; | |
ab0ee2ca JG |
71 | enum lttng_error_code reply_code; |
72 | }; | |
73 | ||
74 | enum lttng_error_code notification_thread_command_register_trigger( | |
75 | struct notification_thread_handle *handle, | |
76 | struct lttng_trigger *trigger); | |
77 | ||
78 | enum lttng_error_code notification_thread_command_unregister_trigger( | |
79 | struct notification_thread_handle *handle, | |
80 | struct lttng_trigger *trigger); | |
81 | ||
82 | enum lttng_error_code notification_thread_command_add_channel( | |
83 | struct notification_thread_handle *handle, | |
84 | char *session_name, uid_t uid, gid_t gid, | |
85 | char *channel_name, uint64_t key, | |
86 | enum lttng_domain_type domain, uint64_t capacity); | |
87 | ||
88 | enum lttng_error_code notification_thread_command_remove_channel( | |
89 | struct notification_thread_handle *handle, | |
90 | uint64_t key, enum lttng_domain_type domain); | |
91 | ||
92 | void notification_thread_command_quit( | |
93 | struct notification_thread_handle *handle); | |
94 | ||
95 | #endif /* NOTIFICATION_THREAD_COMMANDS_H */ |