2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License, version 2 only,
6 * as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 #ifndef _LTT_UST_APP_H
19 #define _LTT_UST_APP_H
23 #include "trace-ust.h"
25 /* lttng-ust supported version. */
26 #define LTTNG_UST_COMM_MAJOR 2 /* comm protocol major version */
27 #define UST_APP_MAJOR_VERSION 3 /* Internal UST version supported */
29 #define UST_APP_EVENT_LIST_SIZE 32
31 struct lttng_filter_bytecode
;
32 struct lttng_ust_filter_bytecode
;
34 extern int ust_consumerd64_fd
, ust_consumerd32_fd
;
36 struct ust_app_ht_key
{
38 const struct lttng_ust_filter_bytecode
*filter
;
39 enum lttng_ust_loglevel_type loglevel
;
43 * Application registration data structure.
45 struct ust_register_msg
{
52 uint32_t bits_per_long
;
57 * Global applications HT used by the session daemon. This table is indexed by
58 * PID using the pid_n node and pid value of an ust_app.
60 struct lttng_ht
*ust_app_ht
;
63 * Global applications HT used by the session daemon. This table is indexed by
64 * socket using the sock_n node and sock value of an ust_app.
66 struct lttng_ht
*ust_app_ht_by_sock
;
70 struct lttng_ust_context ctx
;
71 struct lttng_ust_object_data
*obj
;
72 struct lttng_ht_node_ulong node
;
75 struct ust_app_event
{
78 struct lttng_ust_object_data
*obj
;
79 struct lttng_ust_event attr
;
80 char name
[LTTNG_UST_SYM_NAME_LEN
];
81 struct lttng_ht_node_str node
;
82 struct lttng_ust_filter_bytecode
*filter
;
85 struct ust_app_channel
{
88 char name
[LTTNG_UST_SYM_NAME_LEN
];
89 struct lttng_ust_channel attr
;
90 struct lttng_ust_object_data
*obj
;
91 struct ltt_ust_stream_list streams
;
93 struct lttng_ht
*events
;
94 struct lttng_ht_node_str node
;
97 struct ust_app_session
{
99 /* started: has the session been in started state at any time ? */
100 int started
; /* allows detection of start vs restart. */
101 int handle
; /* used has unique identifier for app session */
102 int id
; /* session unique identifier */
103 struct ltt_ust_metadata
*metadata
;
104 struct lttng_ht
*channels
; /* Registered channels */
105 struct lttng_ht_node_ulong node
;
107 /* UID/GID of the user owning the session */
113 * Registered traceable applications. Libust registers to the session daemon
114 * and a linked list is kept of all running traceable app.
120 uid_t uid
; /* User ID that owns the apps */
121 gid_t gid
; /* Group ID that owns the apps */
123 int compatible
; /* If the lttng-ust tracer version does not match the
124 supported version of the session daemon, this flag is
125 set to 0 (NOT compatible) else 1. */
126 struct lttng_ust_tracer_version version
;
127 uint32_t v_major
; /* Verion major number */
128 uint32_t v_minor
; /* Verion minor number */
129 char name
[17]; /* Process name (short) */
130 struct lttng_ht
*sessions
;
131 struct lttng_ht_node_ulong pid_n
;
132 struct lttng_ht_node_ulong sock_n
;
135 #ifdef HAVE_LIBLTTNG_UST_CTL
137 int ust_app_register(struct ust_register_msg
*msg
, int sock
);
139 int ust_app_register_done(int sock
)
141 return ustctl_register_done(sock
);
143 void ust_app_unregister(int sock
);
144 unsigned long ust_app_list_count(void);
145 int ust_app_start_trace(struct ltt_ust_session
*usess
, struct ust_app
*app
);
146 int ust_app_stop_trace(struct ltt_ust_session
*usess
, struct ust_app
*app
);
147 int ust_app_start_trace_all(struct ltt_ust_session
*usess
);
148 int ust_app_stop_trace_all(struct ltt_ust_session
*usess
);
149 int ust_app_destroy_trace(struct ltt_ust_session
*usess
, struct ust_app
*app
);
150 int ust_app_destroy_trace_all(struct ltt_ust_session
*usess
);
151 int ust_app_list_events(struct lttng_event
**events
);
152 int ust_app_list_event_fields(struct lttng_event_field
**fields
);
153 int ust_app_create_channel_glb(struct ltt_ust_session
*usess
,
154 struct ltt_ust_channel
*uchan
);
155 int ust_app_create_event_glb(struct ltt_ust_session
*usess
,
156 struct ltt_ust_channel
*uchan
, struct ltt_ust_event
*uevent
);
157 int ust_app_disable_event_pid(struct ltt_ust_session
*usess
,
158 struct ltt_ust_channel
*uchan
, struct ltt_ust_event
*uevent
,
160 int ust_app_enable_event_pid(struct ltt_ust_session
*usess
,
161 struct ltt_ust_channel
*uchan
, struct ltt_ust_event
*uevent
,
163 int ust_app_disable_channel_glb(struct ltt_ust_session
*usess
,
164 struct ltt_ust_channel
*uchan
);
165 int ust_app_enable_channel_glb(struct ltt_ust_session
*usess
,
166 struct ltt_ust_channel
*uchan
);
167 int ust_app_enable_event_glb(struct ltt_ust_session
*usess
,
168 struct ltt_ust_channel
*uchan
, struct ltt_ust_event
*uevent
);
169 int ust_app_disable_all_event_glb(struct ltt_ust_session
*usess
,
170 struct ltt_ust_channel
*uchan
);
171 int ust_app_enable_all_event_glb(struct ltt_ust_session
*usess
,
172 struct ltt_ust_channel
*uchan
);
173 int ust_app_disable_event_glb(struct ltt_ust_session
*usess
,
174 struct ltt_ust_channel
*uchan
, struct ltt_ust_event
*uevent
);
175 int ust_app_add_ctx_channel_glb(struct ltt_ust_session
*usess
,
176 struct ltt_ust_channel
*uchan
, struct ltt_ust_context
*uctx
);
177 void ust_app_global_update(struct ltt_ust_session
*usess
, int sock
);
179 void ust_app_clean_list(void);
180 void ust_app_ht_alloc(void);
181 struct lttng_ht
*ust_app_get_ht(void);
182 struct ust_app
*ust_app_find_by_pid(pid_t pid
);
183 int ust_app_validate_version(int sock
);
184 int ust_app_calibrate_glb(struct lttng_ust_calibrate
*calibrate
);
186 #else /* HAVE_LIBLTTNG_UST_CTL */
189 int ust_app_destroy_trace_all(struct ltt_ust_session
*usess
)
194 int ust_app_start_trace(struct ltt_ust_session
*usess
, struct ust_app
*app
)
199 int ust_app_start_trace_all(struct ltt_ust_session
*usess
)
204 int ust_app_stop_trace_all(struct ltt_ust_session
*usess
)
209 int ust_app_list_events(struct lttng_event
**events
)
214 int ust_app_list_event_fields(struct lttng_event_field
**fields
)
219 int ust_app_register(struct ust_register_msg
*msg
, int sock
)
224 int ust_app_register_done(int sock
)
229 void ust_app_unregister(int sock
)
233 unsigned int ust_app_list_count(void)
238 void ust_app_lock_list(void)
242 void ust_app_unlock_list(void)
246 void ust_app_clean_list(void)
250 struct ust_app_list
*ust_app_get_list(void)
255 struct ust_app
*ust_app_get_by_pid(pid_t pid
)
260 struct lttng_ht
*ust_app_get_ht(void)
265 void ust_app_ht_alloc(void)
268 void ust_app_global_update(struct ltt_ust_session
*usess
, int sock
)
271 int ust_app_disable_channel_glb(struct ltt_ust_session
*usess
,
272 struct ltt_ust_channel
*uchan
)
277 int ust_app_enable_channel_glb(struct ltt_ust_session
*usess
,
278 struct ltt_ust_channel
*uchan
)
283 int ust_app_create_channel_glb(struct ltt_ust_session
*usess
,
284 struct ltt_ust_channel
*uchan
)
289 int ust_app_disable_all_event_glb(struct ltt_ust_session
*usess
,
290 struct ltt_ust_channel
*uchan
)
295 int ust_app_enable_all_event_glb(struct ltt_ust_session
*usess
,
296 struct ltt_ust_channel
*uchan
)
301 int ust_app_create_event_glb(struct ltt_ust_session
*usess
,
302 struct ltt_ust_channel
*uchan
, struct ltt_ust_event
*uevent
)
307 int ust_app_disable_event_glb(struct ltt_ust_session
*usess
,
308 struct ltt_ust_channel
*uchan
, struct ltt_ust_event
*uevent
)
313 int ust_app_enable_event_glb(struct ltt_ust_session
*usess
,
314 struct ltt_ust_channel
*uchan
, struct ltt_ust_event
*uevent
)
319 int ust_app_add_ctx_channel_glb(struct ltt_ust_session
*usess
,
320 struct ltt_ust_channel
*uchan
, struct ltt_ust_context
*uctx
)
325 int ust_app_enable_event_pid(struct ltt_ust_session
*usess
,
326 struct ltt_ust_channel
*uchan
, struct ltt_ust_event
*uevent
,
332 int ust_app_disable_event_pid(struct ltt_ust_session
*usess
,
333 struct ltt_ust_channel
*uchan
, struct ltt_ust_event
*uevent
,
339 int ust_app_validate_version(int sock
)
344 int ust_app_calibrate_glb(struct lttng_ust_calibrate
*calibrate
)
349 #endif /* HAVE_LIBLTTNG_UST_CTL */
351 #endif /* _LTT_UST_APP_H */