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91d76f53 DG |
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 | |
82a3637f DG |
6 | * as published by the Free Software Foundation; only version 2 |
7 | * of the License. | |
91d76f53 DG |
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 | ||
f6a9efaa DG |
19 | #ifndef _LTT_UST_APP_H |
20 | #define _LTT_UST_APP_H | |
91d76f53 | 21 | |
099e26bd | 22 | #include <stdint.h> |
1e307fab DG |
23 | #include <urcu/list.h> |
24 | ||
44d3bd01 DG |
25 | #include "trace-ust.h" |
26 | ||
b551a063 DG |
27 | #define UST_APP_EVENT_LIST_SIZE 32 |
28 | ||
099e26bd DG |
29 | /* |
30 | * Application registration data structure. | |
31 | */ | |
32 | struct 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 | ||
48842b30 DG |
42 | /* |
43 | * Global applications HT used by the session daemon. | |
44 | */ | |
f6a9efaa DG |
45 | struct cds_lfht *ust_app_ht; |
46 | ||
47 | struct cds_lfht *ust_app_sock_key_map; | |
48 | ||
49 | struct ust_app_key { | |
50 | pid_t pid; | |
51 | int sock; | |
52 | struct cds_lfht_node node; | |
91d76f53 DG |
53 | }; |
54 | ||
48842b30 DG |
55 | struct ust_app_event { |
56 | int enabled; | |
57 | int handle; | |
13161846 | 58 | struct lttng_ust_object_data *obj; |
284d8f55 | 59 | struct lttng_ust_event attr; |
48842b30 DG |
60 | char name[LTTNG_UST_SYM_NAME_LEN]; |
61 | struct cds_lfht *ctx; | |
62 | struct cds_lfht_node node; | |
63 | }; | |
64 | ||
65 | struct ust_app_channel { | |
66 | int enabled; | |
67 | int handle; | |
68 | char name[LTTNG_UST_SYM_NAME_LEN]; | |
69 | struct lttng_ust_channel attr; | |
13161846 | 70 | struct lttng_ust_object_data *obj; |
5af2f756 | 71 | struct ltt_ust_stream_list streams; |
48842b30 DG |
72 | struct cds_lfht *ctx; |
73 | struct cds_lfht *events; | |
74 | struct cds_lfht_node node; | |
75 | }; | |
76 | ||
77 | struct ust_app_session { | |
78 | int enabled; | |
79 | int handle; /* Used has unique identifier */ | |
80 | unsigned int uid; | |
81 | struct ltt_ust_metadata *metadata; | |
13161846 | 82 | struct lttng_ust_object_data *obj; |
48842b30 DG |
83 | struct cds_lfht *channels; /* Registered channels */ |
84 | struct cds_lfht_node node; | |
85 | }; | |
86 | ||
f6a9efaa DG |
87 | /* |
88 | * Registered traceable applications. Libust registers to the session daemon | |
050349bb | 89 | * and a linked list is kept of all running traceable app. |
91d76f53 | 90 | */ |
56fff090 | 91 | struct ust_app { |
099e26bd DG |
92 | pid_t ppid; |
93 | uid_t uid; /* User ID that owns the apps */ | |
94 | gid_t gid; /* Group ID that owns the apps */ | |
95 | uint32_t v_major; /* Verion major number */ | |
96 | uint32_t v_minor; /* Verion minor number */ | |
97 | char name[17]; /* Process name (short) */ | |
48842b30 | 98 | struct cds_lfht *sessions; |
f6a9efaa DG |
99 | struct cds_lfht_node node; |
100 | struct ust_app_key key; | |
d80a6244 | 101 | int sock_closed; |
91d76f53 DG |
102 | }; |
103 | ||
74d0b642 | 104 | #ifdef HAVE_LIBLTTNG_UST_CTL |
3bd1e081 | 105 | |
56fff090 DG |
106 | int ust_app_register(struct ust_register_msg *msg, int sock); |
107 | void ust_app_unregister(int sock); | |
421cb601 | 108 | int ust_app_add_channel_all(struct ltt_ust_session *usess, |
48842b30 | 109 | struct ltt_ust_channel *uchan); |
421cb601 | 110 | int ust_app_add_event_all(struct ltt_ust_session *usess, |
48842b30 | 111 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent); |
f6a9efaa | 112 | unsigned long ust_app_list_count(void); |
421cb601 DG |
113 | int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app); |
114 | int ust_app_start_trace_all(struct ltt_ust_session *usess); | |
b551a063 | 115 | int ust_app_list_events(struct lttng_event **events); |
487cf67c | 116 | void ust_app_global_update(struct ltt_ust_session *usess, int sock); |
91d76f53 | 117 | |
56fff090 | 118 | void ust_app_clean_list(void); |
f6a9efaa DG |
119 | void ust_app_ht_alloc(void); |
120 | struct cds_lfht *ust_app_get_ht(void); | |
121 | struct ust_app *ust_app_find_by_pid(pid_t pid); | |
44d3bd01 | 122 | |
74d0b642 | 123 | #else /* HAVE_LIBLTTNG_UST_CTL */ |
3bd1e081 | 124 | |
d974f197 | 125 | static inline |
421cb601 DG |
126 | int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app) |
127 | { | |
128 | return 0; | |
129 | } | |
130 | static inline | |
131 | int ust_app_start_trace_all(struct ltt_ust_session *usess) | |
d974f197 | 132 | { |
5cf5d0e7 | 133 | return 0; |
d974f197 | 134 | } |
3bd1e081 | 135 | static inline |
b551a063 DG |
136 | int ust_app_list_events(struct lttng_event **events) |
137 | { | |
138 | return 0; | |
139 | } | |
140 | static inline | |
3bd1e081 MD |
141 | int ust_app_register(struct ust_register_msg *msg, int sock) |
142 | { | |
143 | return -ENOSYS; | |
144 | } | |
145 | static inline | |
146 | void ust_app_unregister(int sock) | |
147 | { | |
148 | } | |
149 | static inline | |
150 | unsigned int ust_app_list_count(void) | |
151 | { | |
152 | return 0; | |
153 | } | |
3bd1e081 MD |
154 | static inline |
155 | void ust_app_lock_list(void) | |
156 | { | |
157 | } | |
158 | static inline | |
159 | void ust_app_unlock_list(void) | |
160 | { | |
161 | } | |
162 | static inline | |
163 | void ust_app_clean_list(void) | |
164 | { | |
165 | } | |
166 | static inline | |
167 | struct ust_app_list *ust_app_get_list(void) | |
168 | { | |
169 | return NULL; | |
170 | } | |
171 | static inline | |
172 | struct ust_app *ust_app_get_by_pid(pid_t pid) | |
173 | { | |
174 | return NULL; | |
175 | } | |
48842b30 | 176 | static inline |
421cb601 | 177 | int ust_app_add_channel_all(struct ltt_ust_session *usess, |
48842b30 DG |
178 | struct ltt_ust_channel *uchan) |
179 | { | |
180 | return 0; | |
181 | } | |
d974f197 | 182 | static inline |
421cb601 | 183 | int ust_app_add_event_all(struct ltt_ust_session *usess, |
d974f197 DG |
184 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent) |
185 | { | |
5cf5d0e7 | 186 | return 0; |
d974f197 DG |
187 | } |
188 | static inline | |
189 | struct cds_lfht *ust_app_get_ht(void) | |
190 | { | |
191 | return NULL; | |
192 | } | |
193 | static inline | |
194 | void ust_app_ht_alloc(void) | |
195 | { | |
196 | } | |
487cf67c DG |
197 | static inline |
198 | void ust_app_global_update(struct ltt_ust_session *usess, int sock) | |
199 | { | |
200 | } | |
48842b30 | 201 | |
74d0b642 | 202 | #endif /* HAVE_LIBLTTNG_UST_CTL */ |
3bd1e081 | 203 | |
f6a9efaa | 204 | #endif /* _LTT_UST_APP_H */ |