Add missing Makefile.am in common/
[lttng-tools.git] / lttng-sessiond / ust-app.h
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1/*
2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
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6 * as published by the Free Software Foundation; only version 2
7 * of the License.
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8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
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19#ifndef _LTT_UST_APP_H
20#define _LTT_UST_APP_H
91d76f53 21
099e26bd 22#include <stdint.h>
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23#include <urcu/list.h>
24
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25#include "trace-ust.h"
26
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27#define UST_APP_EVENT_LIST_SIZE 32
28
7753dea8 29extern int ust_consumerd64_fd, ust_consumerd32_fd;
ba5d816e 30
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31/*
32 * Application registration data structure.
33 */
34struct ust_register_msg {
35 uint32_t major;
36 uint32_t minor;
37 pid_t pid;
38 pid_t ppid;
39 uid_t uid;
40 gid_t gid;
0df502fd 41 uint32_t bits_per_long;
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42 char name[16];
43};
44
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45/*
46 * Global applications HT used by the session daemon.
47 */
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48struct cds_lfht *ust_app_ht;
49
50struct cds_lfht *ust_app_sock_key_map;
51
52struct ust_app_key {
53 pid_t pid;
54 int sock;
55 struct cds_lfht_node node;
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56};
57
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58struct ust_app_ctx {
59 int handle;
60 struct lttng_ust_context ctx;
61 struct lttng_ust_object_data *obj;
62 struct cds_lfht_node node;
63};
64
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65struct ust_app_event {
66 int enabled;
67 int handle;
13161846 68 struct lttng_ust_object_data *obj;
284d8f55 69 struct lttng_ust_event attr;
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70 char name[LTTNG_UST_SYM_NAME_LEN];
71 struct cds_lfht *ctx;
72 struct cds_lfht_node node;
73};
74
75struct ust_app_channel {
76 int enabled;
77 int handle;
78 char name[LTTNG_UST_SYM_NAME_LEN];
79 struct lttng_ust_channel attr;
13161846 80 struct lttng_ust_object_data *obj;
5af2f756 81 struct ltt_ust_stream_list streams;
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82 struct cds_lfht *ctx;
83 struct cds_lfht *events;
84 struct cds_lfht_node node;
85};
86
87struct ust_app_session {
88 int enabled;
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89 /* started: has the session been in started state at any time ? */
90 int started; /* allows detection of start vs restart. */
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91 int handle; /* used has unique identifier for app session */
92 int id; /* session unique identifier */
48842b30 93 struct ltt_ust_metadata *metadata;
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94 struct cds_lfht *channels; /* Registered channels */
95 struct cds_lfht_node node;
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96 /* UID/GID of the user owning the session */
97 uid_t uid;
98 gid_t gid;
477d7741 99 char path[PATH_MAX];
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100};
101
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102/*
103 * Registered traceable applications. Libust registers to the session daemon
050349bb 104 * and a linked list is kept of all running traceable app.
91d76f53 105 */
56fff090 106struct ust_app {
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107 pid_t ppid;
108 uid_t uid; /* User ID that owns the apps */
aea829b3 109 gid_t gid; /* Group ID that owns the apps */
7753dea8 110 int bits_per_long;
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111 uint32_t v_major; /* Verion major number */
112 uint32_t v_minor; /* Verion minor number */
113 char name[17]; /* Process name (short) */
48842b30 114 struct cds_lfht *sessions;
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115 struct cds_lfht_node node;
116 struct ust_app_key key;
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117};
118
74d0b642 119#ifdef HAVE_LIBLTTNG_UST_CTL
3bd1e081 120
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121int ust_app_register(struct ust_register_msg *msg, int sock);
122void ust_app_unregister(int sock);
f6a9efaa 123unsigned long ust_app_list_count(void);
421cb601 124int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app);
8be98f9a 125int ust_app_stop_trace(struct ltt_ust_session *usess, struct ust_app *app);
421cb601 126int ust_app_start_trace_all(struct ltt_ust_session *usess);
8be98f9a 127int ust_app_stop_trace_all(struct ltt_ust_session *usess);
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128int ust_app_destroy_trace(struct ltt_ust_session *usess, struct ust_app *app);
129int ust_app_destroy_trace_all(struct ltt_ust_session *usess);
b551a063 130int ust_app_list_events(struct lttng_event **events);
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131int ust_app_create_channel_glb(struct ltt_ust_session *usess,
132 struct ltt_ust_channel *uchan);
133int ust_app_create_event_glb(struct ltt_ust_session *usess,
134 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
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135int ust_app_disable_event_pid(struct ltt_ust_session *usess,
136 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
137 pid_t pid);
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138int ust_app_enable_event_pid(struct ltt_ust_session *usess,
139 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
140 pid_t pid);
35a9059d 141int ust_app_disable_channel_glb(struct ltt_ust_session *usess,
78f0bacd 142 struct ltt_ust_channel *uchan);
35a9059d 143int ust_app_enable_channel_glb(struct ltt_ust_session *usess,
78f0bacd 144 struct ltt_ust_channel *uchan);
35a9059d 145int ust_app_enable_event_glb(struct ltt_ust_session *usess,
edb67388 146 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
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147int ust_app_disable_all_event_glb(struct ltt_ust_session *usess,
148 struct ltt_ust_channel *uchan);
149int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
9730260e 150 struct ltt_ust_channel *uchan);
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151int ust_app_disable_event_glb(struct ltt_ust_session *usess,
152 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
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153int ust_app_add_ctx_event_glb(struct ltt_ust_session *usess,
154 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
155 struct ltt_ust_context *uctx);
156int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess,
157 struct ltt_ust_channel *uchan, struct ltt_ust_context *uctx);
487cf67c 158void ust_app_global_update(struct ltt_ust_session *usess, int sock);
91d76f53 159
56fff090 160void ust_app_clean_list(void);
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161void ust_app_ht_alloc(void);
162struct cds_lfht *ust_app_get_ht(void);
163struct ust_app *ust_app_find_by_pid(pid_t pid);
44d3bd01 164
74d0b642 165#else /* HAVE_LIBLTTNG_UST_CTL */
3bd1e081 166
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167static inline
168int ust_app_destroy_trace_all(struct ltt_ust_session *usess)
169{
170 return 0;
171}
d974f197 172static inline
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173int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app)
174{
175 return 0;
176}
177static inline
178int ust_app_start_trace_all(struct ltt_ust_session *usess)
d974f197 179{
5cf5d0e7 180 return 0;
d974f197 181}
3bd1e081 182static inline
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183int ust_app_stop_trace_all(struct ltt_ust_session *usess)
184{
185 return 0;
186}
187static inline
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188int ust_app_list_events(struct lttng_event **events)
189{
190 return 0;
191}
192static inline
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193int ust_app_register(struct ust_register_msg *msg, int sock)
194{
195 return -ENOSYS;
196}
197static inline
198void ust_app_unregister(int sock)
199{
200}
201static inline
202unsigned int ust_app_list_count(void)
203{
204 return 0;
205}
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206static inline
207void ust_app_lock_list(void)
208{
209}
210static inline
211void ust_app_unlock_list(void)
212{
213}
214static inline
215void ust_app_clean_list(void)
216{
217}
218static inline
219struct ust_app_list *ust_app_get_list(void)
220{
221 return NULL;
222}
223static inline
224struct ust_app *ust_app_get_by_pid(pid_t pid)
225{
226 return NULL;
227}
48842b30 228static inline
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229struct cds_lfht *ust_app_get_ht(void)
230{
231 return NULL;
232}
233static inline
234void ust_app_ht_alloc(void)
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235{}
236static inline
237void ust_app_global_update(struct ltt_ust_session *usess, int sock)
238{}
239static inline
35a9059d 240int ust_app_disable_channel_glb(struct ltt_ust_session *usess,
cc920def 241 struct ltt_ust_channel *uchan)
d974f197 242{
cc920def 243 return 0;
d974f197 244}
487cf67c 245static inline
35a9059d 246int ust_app_enable_channel_glb(struct ltt_ust_session *usess,
cc920def 247 struct ltt_ust_channel *uchan)
487cf67c 248{
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249 return 0;
250}
251static inline
35a9059d 252int ust_app_create_channel_glb(struct ltt_ust_session *usess,
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253 struct ltt_ust_channel *uchan)
254{
255 return 0;
256}
257static inline
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258int ust_app_disable_all_event_glb(struct ltt_ust_session *usess,
259 struct ltt_ust_channel *uchan)
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260{
261 return 0;
262}
263static inline
35a9059d 264int ust_app_enable_all_event_glb(struct ltt_ust_session *usess,
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265 struct ltt_ust_channel *uchan)
266{
267 return 0;
268}
269static inline
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270int ust_app_create_event_glb(struct ltt_ust_session *usess,
271 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent)
272{
273 return 0;
274}
275static inline
276int ust_app_disable_event_glb(struct ltt_ust_session *usess,
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277 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent)
278{
279 return 0;
487cf67c 280}
edb67388 281static inline
35a9059d 282int ust_app_enable_event_glb(struct ltt_ust_session *usess,
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283 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent)
284{
285 return 0;
286}
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287static inline
288int ust_app_add_ctx_event_glb(struct ltt_ust_session *usess,
289 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
290 struct ltt_ust_context *uctx)
291{
292 return 0;
293}
294static inline
295int ust_app_add_ctx_channel_glb(struct ltt_ust_session *usess,
296 struct ltt_ust_channel *uchan, struct ltt_ust_context *uctx)
297{
298 return 0;
299}
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300static inline
301int ust_app_enable_event_pid(struct ltt_ust_session *usess,
302 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
303 pid_t pid)
304{
305 return 0;
306}
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307static inline
308int ust_app_disable_event_pid(struct ltt_ust_session *usess,
309 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent,
310 pid_t pid)
311{
312 return 0;
313}
48842b30 314
74d0b642 315#endif /* HAVE_LIBLTTNG_UST_CTL */
3bd1e081 316
f6a9efaa 317#endif /* _LTT_UST_APP_H */
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