Commit | Line | Data |
---|---|---|
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> |
5024c2ac | 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, | |
5024c2ac JR |
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 | 34 | NOTIFICATION_COMMAND_TYPE_QUIT, |
5024c2ac | 35 | NOTIFICATION_COMMAND_TYPE_CLIENT_COMMUNICATION_UPDATE, |
ab0ee2ca JG |
36 | }; |
37 | ||
ab0ee2ca JG |
38 | struct notification_thread_command { |
39 | struct cds_list_head cmd_list_node; | |
40 | ||
41 | enum notification_thread_command_type type; | |
42 | union { | |
43 | /* Register/Unregister trigger. */ | |
44 | struct lttng_trigger *trigger; | |
45 | /* Add channel. */ | |
8abe313a JG |
46 | struct { |
47 | struct { | |
48 | const char *name; | |
49 | uid_t uid; | |
50 | gid_t gid; | |
51 | } session; | |
52 | struct { | |
53 | const char *name; | |
54 | enum lttng_domain_type domain; | |
55 | uint64_t key; | |
56 | uint64_t capacity; | |
57 | } channel; | |
58 | } add_channel; | |
ab0ee2ca JG |
59 | /* Remove channel. */ |
60 | struct { | |
61 | uint64_t key; | |
62 | enum lttng_domain_type domain; | |
63 | } remove_channel; | |
731c1b12 JG |
64 | struct { |
65 | const char *session_name; | |
66 | uid_t uid; | |
67 | gid_t gid; | |
68 | uint64_t trace_archive_chunk_id; | |
69 | struct lttng_trace_archive_location *location; | |
70 | } session_rotation; | |
5024c2ac JR |
71 | /* Add/Remove application */ |
72 | struct { | |
73 | int read_side_trigger_event_application_pipe; | |
74 | } application; | |
75 | /* List triggers */ | |
76 | struct { | |
77 | /* Credential */ | |
78 | uid_t uid; | |
79 | gid_t gid; | |
80 | } list_triggers; | |
81 | /* Client communication update. */ | |
82 | struct { | |
83 | notification_client_id id; | |
84 | enum client_transmission_status status; | |
85 | } client_communication_update; | |
86 | ||
ab0ee2ca JG |
87 | } parameters; |
88 | ||
5024c2ac JR |
89 | union { |
90 | struct { | |
91 | struct lttng_triggers *triggers; | |
92 | } get_tokens; | |
93 | struct { | |
94 | struct lttng_triggers *triggers; | |
95 | } list_triggers; | |
96 | } reply; | |
97 | ||
8ada111f JG |
98 | /* lttng_waiter on which to wait for command reply (optional). */ |
99 | struct lttng_waiter reply_waiter; | |
ab0ee2ca | 100 | enum lttng_error_code reply_code; |
5024c2ac | 101 | bool is_async; |
ab0ee2ca JG |
102 | }; |
103 | ||
104 | enum lttng_error_code notification_thread_command_register_trigger( | |
105 | struct notification_thread_handle *handle, | |
106 | struct lttng_trigger *trigger); | |
107 | ||
108 | enum lttng_error_code notification_thread_command_unregister_trigger( | |
109 | struct notification_thread_handle *handle, | |
110 | struct lttng_trigger *trigger); | |
111 | ||
112 | enum lttng_error_code notification_thread_command_add_channel( | |
113 | struct notification_thread_handle *handle, | |
731c1b12 | 114 | char *session_name, uid_t session_uid, gid_t session_gid, |
ab0ee2ca JG |
115 | char *channel_name, uint64_t key, |
116 | enum lttng_domain_type domain, uint64_t capacity); | |
117 | ||
118 | enum lttng_error_code notification_thread_command_remove_channel( | |
119 | struct notification_thread_handle *handle, | |
120 | uint64_t key, enum lttng_domain_type domain); | |
121 | ||
731c1b12 JG |
122 | enum lttng_error_code notification_thread_command_session_rotation_ongoing( |
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 | ||
127 | /* Ownership of location is transferred. */ | |
128 | enum lttng_error_code notification_thread_command_session_rotation_completed( | |
129 | struct notification_thread_handle *handle, | |
130 | const char *session_name, uid_t session_uid, gid_t session_gid, | |
131 | uint64_t trace_archive_chunk_id, | |
132 | struct lttng_trace_archive_location *location); | |
133 | ||
5024c2ac JR |
134 | enum lttng_error_code notification_thread_command_add_application( |
135 | struct notification_thread_handle *handle, | |
136 | struct lttng_pipe *trigger_event_application_pipe); | |
137 | ||
138 | enum lttng_error_code notification_thread_command_remove_application( | |
139 | struct notification_thread_handle *handle, | |
140 | struct lttng_pipe *trigger_event_application_pipe); | |
141 | ||
142 | /* Must hold the notification_trigger_tokens_ht_lock to protect against | |
143 | * insertion removal of triggers TODO: is it the case even with refcounting? */ | |
144 | /* todo find a better way....*/ | |
145 | enum lttng_error_code notification_thread_command_get_tokens( | |
146 | struct notification_thread_handle *handle, | |
147 | struct lttng_triggers **triggers); | |
148 | ||
149 | /* TODO: for now we borrow with no refcount the trigger. THIS IS DANGEROUS */ | |
150 | enum lttng_error_code notification_thread_command_list_triggers( | |
151 | struct notification_thread_handle *handle, | |
152 | uid_t uid, | |
153 | gid_t gid, | |
154 | struct lttng_triggers **triggers); | |
155 | ||
ab0ee2ca JG |
156 | void notification_thread_command_quit( |
157 | struct notification_thread_handle *handle); | |
158 | ||
159 | #endif /* NOTIFICATION_THREAD_COMMANDS_H */ |