Update lttng-ust header copy for disabled UST compilation
[lttng-tools.git] / src / bin / lttng-sessiond / ust-app.h
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1/*
2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 *
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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.
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7 *
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.
12 *
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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.
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16 */
17
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18#ifndef _LTT_UST_APP_H
19#define _LTT_UST_APP_H
91d76f53 20
099e26bd 21#include <stdint.h>
1e307fab 22
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23#include "trace-ust.h"
24
e0c7ec2b 25/* lttng-ust supported version. */
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26#define LTTNG_UST_COMM_MAJOR 2 /* comm protocol major version */
27#define UST_APP_MAJOR_VERSION 2 /* UST version supported */
e0c7ec2b 28
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29#define UST_APP_EVENT_LIST_SIZE 32
30
7753dea8 31extern int ust_consumerd64_fd, ust_consumerd32_fd;
ba5d816e 32
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33/*
34 * Application registration data structure.
35 */
36struct ust_register_msg {
37 uint32_t major;
38 uint32_t minor;
39 pid_t pid;
40 pid_t ppid;
41 uid_t uid;
42 gid_t gid;
0df502fd 43 uint32_t bits_per_long;
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44 char name[16];
45};
46
48842b30 47/*
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48 * Global applications HT used by the session daemon. This table is indexed by
49 * PID using the pid_n node and pid value of an ust_app.
48842b30 50 */
bec39940 51struct lttng_ht *ust_app_ht;
f6a9efaa 52
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53/*
54 * Global applications HT used by the session daemon. This table is indexed by
55 * socket using the sock_n node and sock value of an ust_app.
56 */
57struct lttng_ht *ust_app_ht_by_sock;
91d76f53 58
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59struct ust_app_ctx {
60 int handle;
61 struct lttng_ust_context ctx;
62 struct lttng_ust_object_data *obj;
bec39940 63 struct lttng_ht_node_ulong node;
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64};
65
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66struct ust_app_event {
67 int enabled;
68 int handle;
13161846 69 struct lttng_ust_object_data *obj;
284d8f55 70 struct lttng_ust_event attr;
48842b30 71 char name[LTTNG_UST_SYM_NAME_LEN];
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72 struct lttng_ht *ctx;
73 struct lttng_ht_node_str node;
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74};
75
76struct ust_app_channel {
77 int enabled;
78 int handle;
79 char name[LTTNG_UST_SYM_NAME_LEN];
80 struct lttng_ust_channel attr;
13161846 81 struct lttng_ust_object_data *obj;
5af2f756 82 struct ltt_ust_stream_list streams;
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83 struct lttng_ht *ctx;
84 struct lttng_ht *events;
85 struct lttng_ht_node_str node;
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86};
87
88struct ust_app_session {
89 int enabled;
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90 /* started: has the session been in started state at any time ? */
91 int started; /* allows detection of start vs restart. */
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92 int handle; /* used has unique identifier for app session */
93 int id; /* session unique identifier */
48842b30 94 struct ltt_ust_metadata *metadata;
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95 struct lttng_ht *channels; /* Registered channels */
96 struct lttng_ht_node_ulong node;
97 char path[PATH_MAX];
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98 /* UID/GID of the user owning the session */
99 uid_t uid;
100 gid_t gid;
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101};
102
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103/*
104 * Registered traceable applications. Libust registers to the session daemon
050349bb 105 * and a linked list is kept of all running traceable app.
91d76f53 106 */
56fff090 107struct ust_app {
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108 int sock;
109 pid_t pid;
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110 pid_t ppid;
111 uid_t uid; /* User ID that owns the apps */
aea829b3 112 gid_t gid; /* Group ID that owns the apps */
7753dea8 113 int bits_per_long;
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114 int compatible; /* If the lttng-ust tracer version does not match the
115 supported version of the session daemon, this flag is
116 set to 0 (NOT compatible) else 1. */
117 struct lttng_ust_tracer_version version;
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118 uint32_t v_major; /* Verion major number */
119 uint32_t v_minor; /* Verion minor number */
120 char name[17]; /* Process name (short) */
bec39940 121 struct lttng_ht *sessions;
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122 struct lttng_ht_node_ulong pid_n;
123 struct lttng_ht_node_ulong sock_n;
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124};
125
74d0b642 126#ifdef HAVE_LIBLTTNG_UST_CTL
3bd1e081 127
56fff090 128int ust_app_register(struct ust_register_msg *msg, int sock);
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129static inline
130int ust_app_register_done(int sock)
131{
132 return ustctl_register_done(sock);
133}
56fff090 134void ust_app_unregister(int sock);
f6a9efaa 135unsigned long ust_app_list_count(void);
421cb601 136int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app);
8be98f9a 137int ust_app_stop_trace(struct ltt_ust_session *usess, struct ust_app *app);
421cb601 138int ust_app_start_trace_all(struct ltt_ust_session *usess);
8be98f9a 139int ust_app_stop_trace_all(struct ltt_ust_session *usess);
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140int ust_app_destroy_trace(struct ltt_ust_session *usess, struct ust_app *app);
141int ust_app_destroy_trace_all(struct ltt_ust_session *usess);
b551a063 142int ust_app_list_events(struct lttng_event **events);
f37d259d 143int ust_app_list_event_fields(struct lttng_event_field **fields);
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144int ust_app_create_channel_glb(struct ltt_ust_session *usess,
145 struct ltt_ust_channel *uchan);
146int ust_app_create_event_glb(struct ltt_ust_session *usess,
147 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
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148int ust_app_disable_event_pid(struct ltt_ust_session *usess,
149 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
150 pid_t pid);
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151int ust_app_enable_event_pid(struct ltt_ust_session *usess,
152 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
153 pid_t pid);
35a9059d 154int ust_app_disable_channel_glb(struct ltt_ust_session *usess,
78f0bacd 155 struct ltt_ust_channel *uchan);
35a9059d 156int ust_app_enable_channel_glb(struct ltt_ust_session *usess,
78f0bacd 157 struct ltt_ust_channel *uchan);
35a9059d 158int ust_app_enable_event_glb(struct ltt_ust_session *usess,
edb67388 159 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
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160int ust_app_disable_all_event_glb(struct ltt_ust_session *usess,
161 struct ltt_ust_channel *uchan);
162int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
9730260e 163 struct ltt_ust_channel *uchan);
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164int ust_app_disable_event_glb(struct ltt_ust_session *usess,
165 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
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166int ust_app_add_ctx_event_glb(struct ltt_ust_session *usess,
167 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
168 struct ltt_ust_context *uctx);
169int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess,
170 struct ltt_ust_channel *uchan, struct ltt_ust_context *uctx);
487cf67c 171void ust_app_global_update(struct ltt_ust_session *usess, int sock);
91d76f53 172
56fff090 173void ust_app_clean_list(void);
f6a9efaa 174void ust_app_ht_alloc(void);
bec39940 175struct lttng_ht *ust_app_get_ht(void);
f6a9efaa 176struct ust_app *ust_app_find_by_pid(pid_t pid);
e0c7ec2b 177int ust_app_validate_version(int sock);
4466912f 178int ust_app_calibrate_glb(struct lttng_ust_calibrate *calibrate);
44d3bd01 179
74d0b642 180#else /* HAVE_LIBLTTNG_UST_CTL */
3bd1e081 181
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182static inline
183int ust_app_destroy_trace_all(struct ltt_ust_session *usess)
184{
185 return 0;
186}
d974f197 187static inline
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188int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app)
189{
190 return 0;
191}
192static inline
193int ust_app_start_trace_all(struct ltt_ust_session *usess)
d974f197 194{
5cf5d0e7 195 return 0;
d974f197 196}
3bd1e081 197static inline
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198int ust_app_stop_trace_all(struct ltt_ust_session *usess)
199{
200 return 0;
201}
202static inline
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203int ust_app_list_events(struct lttng_event **events)
204{
db7c0497 205 return -ENOSYS;
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206}
207static inline
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208int ust_app_list_event_fields(struct lttng_event_field **fields)
209{
210 return -ENOSYS;
211}
212static inline
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213int ust_app_register(struct ust_register_msg *msg, int sock)
214{
215 return -ENOSYS;
216}
217static inline
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218int ust_app_register_done(int sock)
219{
220 return -ENOSYS;
221}
222static inline
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223void ust_app_unregister(int sock)
224{
225}
226static inline
227unsigned int ust_app_list_count(void)
228{
229 return 0;
230}
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231static inline
232void ust_app_lock_list(void)
233{
234}
235static inline
236void ust_app_unlock_list(void)
237{
238}
239static inline
240void ust_app_clean_list(void)
241{
242}
243static inline
244struct ust_app_list *ust_app_get_list(void)
245{
246 return NULL;
247}
248static inline
249struct ust_app *ust_app_get_by_pid(pid_t pid)
250{
251 return NULL;
252}
48842b30 253static inline
bec39940 254struct lttng_ht *ust_app_get_ht(void)
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255{
256 return NULL;
257}
258static inline
259void ust_app_ht_alloc(void)
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260{}
261static inline
262void ust_app_global_update(struct ltt_ust_session *usess, int sock)
263{}
264static inline
35a9059d 265int ust_app_disable_channel_glb(struct ltt_ust_session *usess,
cc920def 266 struct ltt_ust_channel *uchan)
d974f197 267{
cc920def 268 return 0;
d974f197 269}
487cf67c 270static inline
35a9059d 271int ust_app_enable_channel_glb(struct ltt_ust_session *usess,
cc920def 272 struct ltt_ust_channel *uchan)
487cf67c 273{
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274 return 0;
275}
276static inline
35a9059d 277int ust_app_create_channel_glb(struct ltt_ust_session *usess,
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278 struct ltt_ust_channel *uchan)
279{
280 return 0;
281}
282static inline
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283int ust_app_disable_all_event_glb(struct ltt_ust_session *usess,
284 struct ltt_ust_channel *uchan)
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285{
286 return 0;
287}
288static inline
35a9059d 289int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
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290 struct ltt_ust_channel *uchan)
291{
292 return 0;
293}
294static inline
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295int ust_app_create_event_glb(struct ltt_ust_session *usess,
296 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent)
297{
298 return 0;
299}
300static inline
301int ust_app_disable_event_glb(struct ltt_ust_session *usess,
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302 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent)
303{
304 return 0;
487cf67c 305}
edb67388 306static inline
35a9059d 307int ust_app_enable_event_glb(struct ltt_ust_session *usess,
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308 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent)
309{
310 return 0;
311}
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312static inline
313int ust_app_add_ctx_event_glb(struct ltt_ust_session *usess,
314 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
315 struct ltt_ust_context *uctx)
316{
317 return 0;
318}
319static inline
320int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess,
321 struct ltt_ust_channel *uchan, struct ltt_ust_context *uctx)
322{
323 return 0;
324}
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325static inline
326int ust_app_enable_event_pid(struct ltt_ust_session *usess,
327 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
328 pid_t pid)
329{
330 return 0;
331}
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332static inline
333int ust_app_disable_event_pid(struct ltt_ust_session *usess,
334 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
335 pid_t pid)
336{
337 return 0;
338}
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339static inline
340int ust_app_validate_version(int sock)
341{
342 return 0;
343}
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344static inline
345int ust_app_calibrate_glb(struct lttng_ust_calibrate *calibrate)
346{
347 return 0;
348}
48842b30 349
74d0b642 350#endif /* HAVE_LIBLTTNG_UST_CTL */
3bd1e081 351
f6a9efaa 352#endif /* _LTT_UST_APP_H */
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