lttng UI: read opt_cmd_name opt arg for each command
[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
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29/*
30 * Application registration data structure.
31 */
32struct ust_register_msg {
33 uint32_t major;
34 uint32_t minor;
35 pid_t pid;
36 pid_t ppid;
37 uid_t uid;
38 gid_t gid;
39 char name[16];
40};
41
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42/*
43 * Global applications HT used by the session daemon.
44 */
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45struct cds_lfht *ust_app_ht;
46
47struct cds_lfht *ust_app_sock_key_map;
48
49struct ust_app_key {
50 pid_t pid;
51 int sock;
52 struct cds_lfht_node node;
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53};
54
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55struct ust_app_event {
56 int enabled;
57 int handle;
13161846 58 struct lttng_ust_object_data *obj;
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59 char name[LTTNG_UST_SYM_NAME_LEN];
60 struct cds_lfht *ctx;
61 struct cds_lfht_node node;
62};
63
64struct ust_app_channel {
65 int enabled;
66 int handle;
67 char name[LTTNG_UST_SYM_NAME_LEN];
68 struct lttng_ust_channel attr;
13161846 69 struct lttng_ust_object_data *obj;
5af2f756 70 struct ltt_ust_stream_list streams;
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71 struct cds_lfht *ctx;
72 struct cds_lfht *events;
73 struct cds_lfht_node node;
74};
75
76struct ust_app_session {
77 int enabled;
78 int handle; /* Used has unique identifier */
79 unsigned int uid;
80 struct ltt_ust_metadata *metadata;
13161846 81 struct lttng_ust_object_data *obj;
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82 struct cds_lfht *channels; /* Registered channels */
83 struct cds_lfht_node node;
84};
85
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86/*
87 * Registered traceable applications. Libust registers to the session daemon
050349bb 88 * and a linked list is kept of all running traceable app.
91d76f53 89 */
56fff090 90struct ust_app {
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91 pid_t ppid;
92 uid_t uid; /* User ID that owns the apps */
93 gid_t gid; /* Group ID that owns the apps */
94 uint32_t v_major; /* Verion major number */
95 uint32_t v_minor; /* Verion minor number */
96 char name[17]; /* Process name (short) */
48842b30 97 struct cds_lfht *sessions;
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98 struct cds_lfht_node node;
99 struct ust_app_key key;
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100};
101
74d0b642 102#ifdef HAVE_LIBLTTNG_UST_CTL
3bd1e081 103
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104int ust_app_register(struct ust_register_msg *msg, int sock);
105void ust_app_unregister(int sock);
421cb601 106int ust_app_add_channel_all(struct ltt_ust_session *usess,
48842b30 107 struct ltt_ust_channel *uchan);
421cb601 108int ust_app_add_event_all(struct ltt_ust_session *usess,
48842b30 109 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
f6a9efaa 110unsigned long ust_app_list_count(void);
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111int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app);
112int ust_app_start_trace_all(struct ltt_ust_session *usess);
b551a063 113int ust_app_list_events(struct lttng_event **events);
487cf67c 114void ust_app_global_update(struct ltt_ust_session *usess, int sock);
91d76f53 115
56fff090 116void ust_app_clean_list(void);
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117void ust_app_ht_alloc(void);
118struct cds_lfht *ust_app_get_ht(void);
119struct ust_app *ust_app_find_by_pid(pid_t pid);
44d3bd01 120
74d0b642 121#else /* HAVE_LIBLTTNG_UST_CTL */
3bd1e081 122
d974f197 123static inline
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124int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app)
125{
126 return 0;
127}
128static inline
129int ust_app_start_trace_all(struct ltt_ust_session *usess)
d974f197 130{
5cf5d0e7 131 return 0;
d974f197 132}
3bd1e081 133static inline
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134int ust_app_list_events(struct lttng_event **events)
135{
136 return 0;
137}
138static inline
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139int ust_app_register(struct ust_register_msg *msg, int sock)
140{
141 return -ENOSYS;
142}
143static inline
144void ust_app_unregister(int sock)
145{
146}
147static inline
148unsigned int ust_app_list_count(void)
149{
150 return 0;
151}
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152static inline
153void ust_app_lock_list(void)
154{
155}
156static inline
157void ust_app_unlock_list(void)
158{
159}
160static inline
161void ust_app_clean_list(void)
162{
163}
164static inline
165struct ust_app_list *ust_app_get_list(void)
166{
167 return NULL;
168}
169static inline
170struct ust_app *ust_app_get_by_pid(pid_t pid)
171{
172 return NULL;
173}
48842b30 174static inline
421cb601 175int ust_app_add_channel_all(struct ltt_ust_session *usess,
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176 struct ltt_ust_channel *uchan)
177{
178 return 0;
179}
d974f197 180static inline
421cb601 181int ust_app_add_event_all(struct ltt_ust_session *usess,
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182 struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent)
183{
5cf5d0e7 184 return 0;
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185}
186static inline
187struct cds_lfht *ust_app_get_ht(void)
188{
189 return NULL;
190}
191static inline
192void ust_app_ht_alloc(void)
193{
194}
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195static inline
196void ust_app_global_update(struct ltt_ust_session *usess, int sock)
197{
198}
48842b30 199
74d0b642 200#endif /* HAVE_LIBLTTNG_UST_CTL */
3bd1e081 201
f6a9efaa 202#endif /* _LTT_UST_APP_H */
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