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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; |
48842b30 DG |
59 | char name[LTTNG_UST_SYM_NAME_LEN]; |
60 | struct cds_lfht *ctx; | |
61 | struct cds_lfht_node node; | |
62 | }; | |
63 | ||
64 | struct 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; |
48842b30 DG |
71 | struct cds_lfht *ctx; |
72 | struct cds_lfht *events; | |
73 | struct cds_lfht_node node; | |
74 | }; | |
75 | ||
76 | struct 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; |
48842b30 DG |
82 | struct cds_lfht *channels; /* Registered channels */ |
83 | struct cds_lfht_node node; | |
84 | }; | |
85 | ||
f6a9efaa DG |
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 | 90 | struct ust_app { |
099e26bd DG |
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; |
f6a9efaa DG |
98 | struct cds_lfht_node node; |
99 | struct ust_app_key key; | |
91d76f53 DG |
100 | }; |
101 | ||
74d0b642 | 102 | #ifdef HAVE_LIBLTTNG_UST_CTL |
3bd1e081 | 103 | |
56fff090 DG |
104 | int ust_app_register(struct ust_register_msg *msg, int sock); |
105 | void ust_app_unregister(int sock); | |
421cb601 | 106 | int ust_app_add_channel_all(struct ltt_ust_session *usess, |
48842b30 | 107 | struct ltt_ust_channel *uchan); |
421cb601 | 108 | int ust_app_add_event_all(struct ltt_ust_session *usess, |
48842b30 | 109 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent); |
f6a9efaa | 110 | unsigned long ust_app_list_count(void); |
421cb601 DG |
111 | int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app); |
112 | int ust_app_start_trace_all(struct ltt_ust_session *usess); | |
b551a063 | 113 | int ust_app_list_events(struct lttng_event **events); |
487cf67c | 114 | void ust_app_global_update(struct ltt_ust_session *usess, int sock); |
91d76f53 | 115 | |
56fff090 | 116 | void ust_app_clean_list(void); |
f6a9efaa DG |
117 | void ust_app_ht_alloc(void); |
118 | struct cds_lfht *ust_app_get_ht(void); | |
119 | struct ust_app *ust_app_find_by_pid(pid_t pid); | |
44d3bd01 | 120 | |
74d0b642 | 121 | #else /* HAVE_LIBLTTNG_UST_CTL */ |
3bd1e081 | 122 | |
d974f197 | 123 | static inline |
421cb601 DG |
124 | int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app) |
125 | { | |
126 | return 0; | |
127 | } | |
128 | static inline | |
129 | int ust_app_start_trace_all(struct ltt_ust_session *usess) | |
d974f197 | 130 | { |
5cf5d0e7 | 131 | return 0; |
d974f197 | 132 | } |
3bd1e081 | 133 | static inline |
b551a063 DG |
134 | int ust_app_list_events(struct lttng_event **events) |
135 | { | |
136 | return 0; | |
137 | } | |
138 | static inline | |
3bd1e081 MD |
139 | int ust_app_register(struct ust_register_msg *msg, int sock) |
140 | { | |
141 | return -ENOSYS; | |
142 | } | |
143 | static inline | |
144 | void ust_app_unregister(int sock) | |
145 | { | |
146 | } | |
147 | static inline | |
148 | unsigned int ust_app_list_count(void) | |
149 | { | |
150 | return 0; | |
151 | } | |
3bd1e081 MD |
152 | static inline |
153 | void ust_app_lock_list(void) | |
154 | { | |
155 | } | |
156 | static inline | |
157 | void ust_app_unlock_list(void) | |
158 | { | |
159 | } | |
160 | static inline | |
161 | void ust_app_clean_list(void) | |
162 | { | |
163 | } | |
164 | static inline | |
165 | struct ust_app_list *ust_app_get_list(void) | |
166 | { | |
167 | return NULL; | |
168 | } | |
169 | static inline | |
170 | struct ust_app *ust_app_get_by_pid(pid_t pid) | |
171 | { | |
172 | return NULL; | |
173 | } | |
48842b30 | 174 | static inline |
421cb601 | 175 | int ust_app_add_channel_all(struct ltt_ust_session *usess, |
48842b30 DG |
176 | struct ltt_ust_channel *uchan) |
177 | { | |
178 | return 0; | |
179 | } | |
d974f197 | 180 | static inline |
421cb601 | 181 | int ust_app_add_event_all(struct ltt_ust_session *usess, |
d974f197 DG |
182 | struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent) |
183 | { | |
5cf5d0e7 | 184 | return 0; |
d974f197 DG |
185 | } |
186 | static inline | |
187 | struct cds_lfht *ust_app_get_ht(void) | |
188 | { | |
189 | return NULL; | |
190 | } | |
191 | static inline | |
192 | void ust_app_ht_alloc(void) | |
193 | { | |
194 | } | |
487cf67c DG |
195 | static inline |
196 | void 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 */ |