Commit | Line | Data |
---|---|---|
a58c490f | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
a58c490f | 3 | * |
ab5be9fa | 4 | * SPDX-License-Identifier: LGPL-2.1-only |
a58c490f | 5 | * |
a58c490f JG |
6 | */ |
7 | ||
1c2c1c05 JR |
8 | #include <assert.h> |
9 | #include <common/error.h> | |
10 | #include <common/macros.h> | |
0f7c2963 | 11 | #include <common/mi-lttng.h> |
a58c490f JG |
12 | #include <lttng/action/action-internal.h> |
13 | #include <lttng/action/notify-internal.h> | |
7f4d5b07 | 14 | #include <lttng/action/rate-policy-internal.h> |
0f7c2963 | 15 | #include <lttng/lttng-error.h> |
1c2c1c05 JR |
16 | |
17 | #define IS_NOTIFY_ACTION(action) \ | |
18 | (lttng_action_get_type(action) == LTTNG_ACTION_TYPE_NOTIFY) | |
19 | ||
20 | static struct lttng_action_notify *action_notify_from_action( | |
21 | struct lttng_action *action) | |
22 | { | |
23 | assert(action); | |
24 | ||
25 | return container_of(action, struct lttng_action_notify, parent); | |
26 | } | |
27 | ||
28 | static const struct lttng_action_notify *action_notify_from_action_const( | |
29 | const struct lttng_action *action) | |
30 | { | |
31 | assert(action); | |
32 | ||
33 | return container_of(action, struct lttng_action_notify, parent); | |
34 | } | |
a58c490f JG |
35 | |
36 | static | |
37 | void lttng_action_notify_destroy(struct lttng_action *action) | |
38 | { | |
1c2c1c05 JR |
39 | struct lttng_action_notify *notify_action; |
40 | notify_action = action_notify_from_action(action); | |
7f4d5b07 | 41 | lttng_rate_policy_destroy(notify_action->policy); |
1c2c1c05 | 42 | free(notify_action); |
a58c490f JG |
43 | } |
44 | ||
45 | static | |
3647288f | 46 | int lttng_action_notify_serialize(struct lttng_action *action, |
c0a66c84 | 47 | struct lttng_payload *payload) |
a58c490f | 48 | { |
1c2c1c05 JR |
49 | int ret; |
50 | struct lttng_action_notify *notify_action; | |
51 | ||
52 | if (!action || !IS_NOTIFY_ACTION(action) || !payload) { | |
53 | ret = -1; | |
54 | goto end; | |
55 | } | |
56 | ||
57 | DBG("Serializing notify action"); | |
58 | ||
59 | notify_action = action_notify_from_action(action); | |
7f4d5b07 JR |
60 | DBG("Serializing notify action rate policy"); |
61 | ret = lttng_rate_policy_serialize(notify_action->policy, payload); | |
1c2c1c05 JR |
62 | |
63 | end: | |
64 | return ret; | |
a58c490f JG |
65 | } |
66 | ||
3dd04a6a JR |
67 | static |
68 | bool lttng_action_notify_is_equal(const struct lttng_action *a, | |
69 | const struct lttng_action *b) | |
70 | { | |
1c2c1c05 JR |
71 | const struct lttng_action_notify *_a, *_b; |
72 | ||
73 | _a = action_notify_from_action_const(a); | |
74 | _b = action_notify_from_action_const(b); | |
7f4d5b07 | 75 | return lttng_rate_policy_is_equal(_a->policy, _b->policy); |
3dd04a6a JR |
76 | } |
77 | ||
7f4d5b07 JR |
78 | static const struct lttng_rate_policy * |
79 | lttng_action_notify_internal_get_rate_policy(const struct lttng_action *action) | |
2d57482c JR |
80 | { |
81 | const struct lttng_action_notify *_action; | |
82 | _action = action_notify_from_action_const(action); | |
83 | ||
84 | return _action->policy; | |
85 | } | |
86 | ||
0f7c2963 JR |
87 | static enum lttng_error_code lttng_action_notify_mi_serialize( |
88 | const struct lttng_action *action, struct mi_writer *writer) | |
89 | { | |
90 | int ret; | |
91 | enum lttng_action_status status; | |
92 | enum lttng_error_code ret_code; | |
93 | const struct lttng_rate_policy *policy = NULL; | |
94 | ||
95 | assert(action); | |
96 | assert(IS_NOTIFY_ACTION(action)); | |
97 | assert(writer); | |
98 | ||
99 | status = lttng_action_notify_get_rate_policy(action, &policy); | |
100 | assert(status == LTTNG_ACTION_STATUS_OK); | |
101 | assert(policy != NULL); | |
102 | ||
103 | /* Open action notify. */ | |
104 | ret = mi_lttng_writer_open_element( | |
105 | writer, mi_lttng_element_action_notify); | |
106 | if (ret) { | |
107 | goto mi_error; | |
108 | } | |
109 | ||
110 | ret_code = lttng_rate_policy_mi_serialize(policy, writer); | |
111 | if (ret_code != LTTNG_OK) { | |
112 | goto end; | |
113 | } | |
114 | ||
115 | /* Close action notify element. */ | |
116 | ret = mi_lttng_writer_close_element(writer); | |
117 | if (ret) { | |
118 | goto mi_error; | |
119 | } | |
120 | ||
121 | ret_code = LTTNG_OK; | |
122 | goto end; | |
123 | ||
124 | mi_error: | |
125 | ret_code = LTTNG_ERR_MI_IO_FAIL; | |
126 | end: | |
127 | return ret_code; | |
128 | } | |
129 | ||
a58c490f JG |
130 | struct lttng_action *lttng_action_notify_create(void) |
131 | { | |
7f4d5b07 | 132 | struct lttng_rate_policy *policy = NULL; |
1c2c1c05 JR |
133 | struct lttng_action_notify *notify = NULL; |
134 | struct lttng_action *action = NULL; | |
a58c490f JG |
135 | |
136 | notify = zmalloc(sizeof(struct lttng_action_notify)); | |
137 | if (!notify) { | |
138 | goto end; | |
139 | } | |
140 | ||
1c2c1c05 | 141 | /* Default policy. */ |
7f4d5b07 | 142 | policy = lttng_rate_policy_every_n_create(1); |
1c2c1c05 JR |
143 | if (!policy) { |
144 | goto end; | |
145 | } | |
146 | ||
6acb3f46 SM |
147 | lttng_action_init(¬ify->parent, LTTNG_ACTION_TYPE_NOTIFY, NULL, |
148 | lttng_action_notify_serialize, | |
3dd04a6a | 149 | lttng_action_notify_is_equal, |
2d57482c | 150 | lttng_action_notify_destroy, |
588c4b0d | 151 | lttng_action_notify_internal_get_rate_policy, |
0f7c2963 JR |
152 | lttng_action_generic_add_error_query_results, |
153 | lttng_action_notify_mi_serialize); | |
1c2c1c05 JR |
154 | |
155 | notify->policy = policy; | |
156 | policy = NULL; | |
157 | ||
158 | action = ¬ify->parent; | |
159 | notify = NULL; | |
160 | ||
a58c490f | 161 | end: |
1c2c1c05 | 162 | free(notify); |
7f4d5b07 | 163 | lttng_rate_policy_destroy(policy); |
1c2c1c05 | 164 | return action; |
a58c490f | 165 | } |
869a3c2d | 166 | |
c0a66c84 JG |
167 | ssize_t lttng_action_notify_create_from_payload( |
168 | struct lttng_payload_view *view, | |
869a3c2d SM |
169 | struct lttng_action **action) |
170 | { | |
1c2c1c05 | 171 | enum lttng_action_status status; |
869a3c2d | 172 | ssize_t consumed_length; |
7f4d5b07 | 173 | struct lttng_rate_policy *rate_policy = NULL; |
1c2c1c05 | 174 | struct lttng_action *_action = NULL; |
869a3c2d | 175 | |
7f4d5b07 JR |
176 | consumed_length = lttng_rate_policy_create_from_payload( |
177 | view, &rate_policy); | |
178 | if (!rate_policy) { | |
869a3c2d SM |
179 | consumed_length = -1; |
180 | goto end; | |
181 | } | |
182 | ||
1c2c1c05 JR |
183 | _action = lttng_action_notify_create(); |
184 | if (!_action) { | |
185 | consumed_length = -1; | |
186 | goto end; | |
187 | } | |
188 | ||
7f4d5b07 | 189 | status = lttng_action_notify_set_rate_policy(_action, rate_policy); |
1c2c1c05 JR |
190 | if (status != LTTNG_ACTION_STATUS_OK) { |
191 | consumed_length = -1; | |
192 | goto end; | |
193 | } | |
194 | ||
195 | *action = _action; | |
196 | _action = NULL; | |
197 | ||
869a3c2d | 198 | end: |
7f4d5b07 | 199 | lttng_rate_policy_destroy(rate_policy); |
1c2c1c05 | 200 | lttng_action_destroy(_action); |
869a3c2d SM |
201 | return consumed_length; |
202 | } | |
1c2c1c05 | 203 | |
7f4d5b07 | 204 | enum lttng_action_status lttng_action_notify_set_rate_policy( |
1c2c1c05 | 205 | struct lttng_action *action, |
7f4d5b07 | 206 | const struct lttng_rate_policy *policy) |
1c2c1c05 JR |
207 | { |
208 | enum lttng_action_status status; | |
209 | struct lttng_action_notify *notify_action; | |
7f4d5b07 | 210 | struct lttng_rate_policy *copy = NULL; |
1c2c1c05 JR |
211 | |
212 | if (!action || !policy || !IS_NOTIFY_ACTION(action)) { | |
213 | status = LTTNG_ACTION_STATUS_INVALID; | |
214 | goto end; | |
215 | } | |
216 | ||
7f4d5b07 | 217 | copy = lttng_rate_policy_copy(policy); |
1c2c1c05 JR |
218 | if (!copy) { |
219 | status = LTTNG_ACTION_STATUS_ERROR; | |
220 | goto end; | |
221 | } | |
222 | ||
223 | notify_action = action_notify_from_action(action); | |
224 | ||
7f4d5b07 JR |
225 | /* Free the previous rate policy .*/ |
226 | lttng_rate_policy_destroy(notify_action->policy); | |
1c2c1c05 JR |
227 | |
228 | /* Assign the policy. */ | |
229 | notify_action->policy = copy; | |
230 | status = LTTNG_ACTION_STATUS_OK; | |
231 | copy = NULL; | |
232 | ||
233 | end: | |
7f4d5b07 | 234 | lttng_rate_policy_destroy(copy); |
1c2c1c05 JR |
235 | return status; |
236 | } | |
237 | ||
7f4d5b07 | 238 | enum lttng_action_status lttng_action_notify_get_rate_policy( |
1c2c1c05 | 239 | const struct lttng_action *action, |
7f4d5b07 | 240 | const struct lttng_rate_policy **policy) |
1c2c1c05 JR |
241 | { |
242 | enum lttng_action_status status; | |
243 | const struct lttng_action_notify *notify_action; | |
244 | ||
245 | if (!action || !policy || !IS_NOTIFY_ACTION(action)) { | |
246 | status = LTTNG_ACTION_STATUS_INVALID; | |
247 | goto end; | |
248 | } | |
249 | ||
250 | notify_action = action_notify_from_action_const(action); | |
251 | ||
252 | *policy = notify_action->policy; | |
253 | status = LTTNG_ACTION_STATUS_OK; | |
254 | end: | |
255 | return status; | |
256 | } |