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6d420eff JR |
1 | /* |
2 | * Copyright (C) 2019 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com> | |
3 | * | |
4 | * SPDX-License-Identifier: LGPL-2.1-only | |
5 | * | |
6 | */ | |
7 | ||
8 | #ifndef LTTNG_EVENT_RULE_TRACEPOINT_H | |
9 | #define LTTNG_EVENT_RULE_TRACEPOINT_H | |
10 | ||
11 | #include <lttng/domain.h> | |
12 | #include <lttng/event-rule/event-rule.h> | |
13 | #include <lttng/event.h> | |
14 | ||
15 | #ifdef __cplusplus | |
16 | extern "C" { | |
17 | #endif | |
18 | ||
19 | /* | |
20 | * Create a newly allocated tracepoint event rule. | |
21 | * | |
22 | * Returns a new event rule on success, NULL on failure. This event rule must be | |
23 | * destroyed using lttng_event_rule_destroy(). | |
24 | */ | |
25 | extern struct lttng_event_rule *lttng_event_rule_tracepoint_create( | |
26 | enum lttng_domain_type domain); | |
27 | ||
28 | /* | |
29 | * Set the pattern of a tracepoint event rule. | |
30 | * | |
31 | * Pattern can contain wildcard '*'. See man lttng-enable-event. | |
32 | * | |
33 | * Return LTTNG_EVENT_RULE_STATUS_OK on success, LTTNG_EVENT_RULE_STATUS_INVALID | |
34 | * if invalid parameters are passed. | |
35 | */ | |
36 | extern enum lttng_event_rule_status lttng_event_rule_tracepoint_set_pattern( | |
37 | struct lttng_event_rule *rule, const char *pattern); | |
38 | ||
39 | /* | |
40 | * Get the pattern of a tracepoint event rule. | |
41 | * | |
42 | * The caller does not assume the ownership of the returned pattern. The | |
43 | * pattern shall only only be used for the duration of the event rule's | |
44 | * lifetime, or before a different pattern is set. | |
45 | * | |
46 | * Returns LTTNG_EVENT_RULE_STATUS_OK and a pointer to the event rule's pattern | |
47 | * on success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid | |
48 | * parameter is passed, or LTTNG_EVENT_RULE_STATUS_UNSET if a pattern | |
49 | * was not set prior to this call. | |
50 | */ | |
51 | extern enum lttng_event_rule_status lttng_event_rule_tracepoint_get_pattern( | |
52 | const struct lttng_event_rule *rule, const char **pattern); | |
53 | ||
54 | /* | |
55 | * Get the domain type of a tracepoint event rule. | |
56 | * | |
57 | * Returns LTTNG_EVENT_RULE_STATUS_OK and sets the domain type output parameter | |
58 | * on success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid parameter is | |
59 | * passed, or LTTNG_EVENT_RULE_STATUS_UNSET if a pattern was not set prior to | |
60 | * this call. | |
61 | */ | |
62 | extern enum lttng_event_rule_status lttng_event_rule_tracepoint_get_domain_type( | |
63 | const struct lttng_event_rule *rule, | |
64 | enum lttng_domain_type *type); | |
65 | ||
66 | /* | |
67 | * Set the filter expression of a tracepoint event rule. | |
68 | * | |
69 | * The expression is copied internally. | |
70 | * | |
71 | * Return LTTNG_EVENT_RULE_STATUS_OK on success, LTTNG_EVENT_RULE_STATUS_INVALID | |
72 | * if invalid parameters are passed. | |
73 | */ | |
74 | extern enum lttng_event_rule_status lttng_event_rule_tracepoint_set_filter( | |
75 | struct lttng_event_rule *rule, const char *expression); | |
76 | ||
77 | /* | |
78 | * Get the filter expression of a tracepoint event rule. | |
79 | * | |
80 | * The caller does not assume the ownership of the returned filter expression. | |
81 | * The filter expression shall only only be used for the duration of the event | |
82 | * rule's lifetime, or before a different filter expression is set. | |
83 | * | |
84 | * Returns LTTNG_EVENT_RULE_STATUS_OK and a pointer to the event rule's filter | |
85 | * expression on success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid | |
86 | * parameter is passed, or LTTNG_EVENT_RULE_STATUS_UNSET if a filter expression | |
87 | * was not set prior to this call. | |
88 | */ | |
89 | extern enum lttng_event_rule_status lttng_event_rule_tracepoint_get_filter( | |
90 | const struct lttng_event_rule *rule, const char **expression); | |
91 | ||
92 | /* | |
93 | * Set the single log level of a tracepoint event rule. | |
94 | * | |
95 | * Return LTTNG_EVENT_RULE_STATUS_OK on success, LTTNG_EVENT_RULE_STATUS_INVALID | |
96 | * if invalid parameters are passed. | |
97 | */ | |
98 | extern enum lttng_event_rule_status lttng_event_rule_tracepoint_set_log_level( | |
99 | struct lttng_event_rule *rule, int level); | |
100 | ||
101 | /* | |
102 | * Set the log level range lower bound of a tracepoint event rule. | |
103 | * | |
104 | * Return LTTNG_EVENT_RULE_STATUS_OK on success, LTTNG_EVENT_RULE_STATUS_INVALID | |
105 | * if invalid parameters are passed. | |
106 | */ | |
107 | extern enum lttng_event_rule_status | |
108 | lttng_event_rule_tracepoint_set_log_level_range_lower_bound( | |
109 | struct lttng_event_rule *rule, int level); | |
110 | ||
111 | /* | |
112 | * Set the log level to all of a tracepoint event rule. | |
113 | * | |
114 | * Return LTTNG_EVENT_RULE_STATUS_OK on success, LTTNG_EVENT_RULE_STATUS_INVALID | |
115 | * if invalid parameters are passed. | |
116 | */ | |
117 | extern enum lttng_event_rule_status | |
118 | lttng_event_rule_tracepoint_set_log_level_all(struct lttng_event_rule *rule); | |
119 | ||
120 | /* | |
121 | * Get the log level type of a tracepoint event rule. | |
122 | * | |
123 | * Returns LTTNG_EVENT_RULE_STATUS_OK and sets the log level type output | |
124 | * parameter on success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid parameter | |
125 | * is passed, or LTTNG_EVENT_RULE_STATUS_UNSET if a log level was not set prior | |
126 | * to this call. | |
127 | */ | |
128 | extern enum lttng_event_rule_status | |
129 | lttng_event_rule_tracepoint_get_log_level_type( | |
130 | const struct lttng_event_rule *rule, | |
131 | enum lttng_loglevel_type *type); | |
132 | ||
133 | /* | |
134 | * Get the log level of a tracepoint event rule. | |
135 | * | |
136 | * For range log level , the lower bound log level is returned. | |
137 | * | |
138 | * Returns LTTNG_EVENT_RULE_STATUS_OK and sets the log level output parameter | |
139 | * on success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid parameter is | |
140 | * passed, or LTTNG_EVENT_RULE_STATUS_UNSET if a log level was not set prior to | |
141 | * this call. | |
142 | */ | |
143 | extern enum lttng_event_rule_status lttng_event_rule_tracepoint_get_log_level( | |
144 | const struct lttng_event_rule *rule, int *level); | |
145 | ||
146 | /* | |
147 | * Add an exclusion to the set of exclusion of an event rule. | |
148 | * | |
149 | * The passed exclusion will be copied to the event_rule. | |
150 | * | |
151 | * Returns LTTNG_EVENT_RULE_STATUS_OK on success, | |
152 | * LTTNG_EVENT_RULE_STATUS_INVALID if invalid parameters are passed, or | |
153 | * LTTNG_EVENT_RULE_STATUS_UNSUPPORTED if this property is not supported by the | |
154 | * domain. | |
155 | */ | |
156 | extern enum lttng_event_rule_status lttng_event_rule_tracepoint_add_exclusion( | |
157 | struct lttng_event_rule *rule, | |
158 | const char *exclusion); | |
159 | ||
160 | /* | |
161 | * Get the exclusions property count of an event rule. | |
162 | * | |
163 | * Returns LTTNG_EVENT_RULE_STATUS_OK and sets the count output parameter | |
164 | * on success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid parameter is | |
165 | * passed. | |
166 | */ | |
167 | extern enum lttng_event_rule_status | |
168 | lttng_event_rule_tracepoint_get_exclusions_count( | |
169 | const struct lttng_event_rule *rule, unsigned int *count); | |
170 | ||
171 | /* | |
172 | * Get the event rule exclusion at the given index. | |
173 | * | |
174 | * Returns LTTNG_EVENT_RULE_STATUS_OK and sets the exclusion output parameter | |
175 | * on success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid parameter is | |
176 | * passed. | |
177 | */ | |
178 | extern enum lttng_event_rule_status | |
179 | lttng_event_rule_tracepoint_get_exclusion_at_index( | |
180 | const struct lttng_event_rule *rule, | |
181 | unsigned int index, | |
182 | const char **exclusion); | |
183 | ||
184 | #ifdef __cplusplus | |
185 | } | |
186 | #endif | |
187 | ||
188 | #endif /* LTTNG_EVENT_RULE_TRACEPOINT_H */ |