Commit | Line | Data |
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ab0ee2ca | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
ab0ee2ca | 3 | * |
ab5be9fa | 4 | * SPDX-License-Identifier: GPL-2.0-only |
ab0ee2ca | 5 | * |
ab0ee2ca JG |
6 | */ |
7 | ||
8 | #ifndef NOTIFICATION_THREAD_COMMANDS_H | |
9 | #define NOTIFICATION_THREAD_COMMANDS_H | |
10 | ||
11 | #include <lttng/domain.h> | |
12 | #include <lttng/lttng-error.h> | |
13 | #include <urcu/rculfhash.h> | |
14 | #include "notification-thread.h" | |
8abe313a JG |
15 | #include "notification-thread-internal.h" |
16 | #include "notification-thread-events.h" | |
8ada111f | 17 | #include <common/waiter.h> |
1831ae68 | 18 | #include <stdbool.h> |
ab0ee2ca JG |
19 | |
20 | struct notification_thread_data; | |
21 | struct lttng_trigger; | |
22 | ||
23 | enum notification_thread_command_type { | |
24 | NOTIFICATION_COMMAND_TYPE_REGISTER_TRIGGER, | |
25 | NOTIFICATION_COMMAND_TYPE_UNREGISTER_TRIGGER, | |
26 | NOTIFICATION_COMMAND_TYPE_ADD_CHANNEL, | |
27 | NOTIFICATION_COMMAND_TYPE_REMOVE_CHANNEL, | |
731c1b12 JG |
28 | NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_ONGOING, |
29 | NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_COMPLETED, | |
1831ae68 FD |
30 | NOTIFICATION_COMMAND_TYPE_ADD_APPLICATION, |
31 | NOTIFICATION_COMMAND_TYPE_REMOVE_APPLICATION, | |
32 | NOTIFICATION_COMMAND_TYPE_GET_TOKENS, | |
33 | NOTIFICATION_COMMAND_TYPE_LIST_TRIGGERS, | |
ab0ee2ca JG |
34 | NOTIFICATION_COMMAND_TYPE_QUIT, |
35 | }; | |
36 | ||
ab0ee2ca JG |
37 | struct notification_thread_command { |
38 | struct cds_list_head cmd_list_node; | |
39 | ||
40 | enum notification_thread_command_type type; | |
41 | union { | |
42 | /* Register/Unregister trigger. */ | |
43 | struct lttng_trigger *trigger; | |
44 | /* Add channel. */ | |
8abe313a JG |
45 | struct { |
46 | struct { | |
47 | const char *name; | |
48 | uid_t uid; | |
49 | gid_t gid; | |
50 | } session; | |
51 | struct { | |
52 | const char *name; | |
53 | enum lttng_domain_type domain; | |
54 | uint64_t key; | |
55 | uint64_t capacity; | |
56 | } channel; | |
57 | } add_channel; | |
ab0ee2ca JG |
58 | /* Remove channel. */ |
59 | struct { | |
60 | uint64_t key; | |
61 | enum lttng_domain_type domain; | |
62 | } remove_channel; | |
731c1b12 JG |
63 | struct { |
64 | const char *session_name; | |
65 | uid_t uid; | |
66 | gid_t gid; | |
67 | uint64_t trace_archive_chunk_id; | |
68 | struct lttng_trace_archive_location *location; | |
69 | } session_rotation; | |
1831ae68 FD |
70 | /* Add/Remove application */ |
71 | struct { | |
72 | int read_side_trigger_event_application_pipe; | |
73 | } application; | |
74 | /* List triggers */ | |
75 | struct { | |
76 | /* Credential */ | |
77 | uid_t uid; | |
78 | gid_t gid; | |
79 | } list_triggers; | |
80 | ||
ab0ee2ca JG |
81 | } parameters; |
82 | ||
1831ae68 FD |
83 | union { |
84 | struct { | |
85 | struct lttng_triggers *triggers; | |
86 | } get_tokens; | |
87 | struct { | |
88 | struct lttng_triggers *triggers; | |
89 | } list_triggers; | |
90 | } reply; | |
91 | ||
8ada111f JG |
92 | /* lttng_waiter on which to wait for command reply (optional). */ |
93 | struct lttng_waiter reply_waiter; | |
ab0ee2ca | 94 | enum lttng_error_code reply_code; |
1831ae68 | 95 | bool is_async; |
ab0ee2ca JG |
96 | }; |
97 | ||
98 | enum lttng_error_code notification_thread_command_register_trigger( | |
99 | struct notification_thread_handle *handle, | |
100 | struct lttng_trigger *trigger); | |
101 | ||
102 | enum lttng_error_code notification_thread_command_unregister_trigger( | |
103 | struct notification_thread_handle *handle, | |
104 | struct lttng_trigger *trigger); | |
105 | ||
106 | enum lttng_error_code notification_thread_command_add_channel( | |
107 | struct notification_thread_handle *handle, | |
731c1b12 | 108 | char *session_name, uid_t session_uid, gid_t session_gid, |
ab0ee2ca JG |
109 | char *channel_name, uint64_t key, |
110 | enum lttng_domain_type domain, uint64_t capacity); | |
111 | ||
112 | enum lttng_error_code notification_thread_command_remove_channel( | |
113 | struct notification_thread_handle *handle, | |
114 | uint64_t key, enum lttng_domain_type domain); | |
115 | ||
731c1b12 JG |
116 | enum lttng_error_code notification_thread_command_session_rotation_ongoing( |
117 | struct notification_thread_handle *handle, | |
118 | const char *session_name, uid_t session_uid, gid_t session_gid, | |
119 | uint64_t trace_archive_chunk_id); | |
120 | ||
121 | /* Ownership of location is transferred. */ | |
122 | enum lttng_error_code notification_thread_command_session_rotation_completed( | |
123 | struct notification_thread_handle *handle, | |
124 | const char *session_name, uid_t session_uid, gid_t session_gid, | |
125 | uint64_t trace_archive_chunk_id, | |
126 | struct lttng_trace_archive_location *location); | |
127 | ||
1831ae68 FD |
128 | enum lttng_error_code notification_thread_command_add_application( |
129 | struct notification_thread_handle *handle, | |
130 | struct lttng_pipe *trigger_event_application_pipe); | |
131 | ||
132 | enum lttng_error_code notification_thread_command_remove_application( | |
133 | struct notification_thread_handle *handle, | |
134 | struct lttng_pipe *trigger_event_application_pipe); | |
135 | ||
136 | /* Must hold the notification_trigger_tokens_ht_lock to protect against | |
137 | * insertion removal of triggers TODO: is it the case even with refcounting? */ | |
138 | /* todo find a better way....*/ | |
139 | enum lttng_error_code notification_thread_command_get_tokens( | |
140 | struct notification_thread_handle *handle, | |
141 | struct lttng_triggers **triggers); | |
142 | ||
143 | /* TODO: for now we borrow with no refcount the trigger. THIS IS DANGEROUS */ | |
144 | enum lttng_error_code notification_thread_command_list_triggers( | |
145 | struct notification_thread_handle *handle, | |
146 | uid_t uid, | |
147 | gid_t gid, | |
148 | struct lttng_triggers **triggers); | |
149 | ||
ab0ee2ca JG |
150 | void notification_thread_command_quit( |
151 | struct notification_thread_handle *handle); | |
152 | ||
153 | #endif /* NOTIFICATION_THREAD_COMMANDS_H */ |