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> | |
a58c490f | 11 | #include <lttng/action/action-internal.h> |
1c2c1c05 | 12 | #include <lttng/action/firing-policy-internal.h> |
a58c490f | 13 | #include <lttng/action/notify-internal.h> |
1c2c1c05 JR |
14 | |
15 | #define IS_NOTIFY_ACTION(action) \ | |
16 | (lttng_action_get_type(action) == LTTNG_ACTION_TYPE_NOTIFY) | |
17 | ||
18 | static struct lttng_action_notify *action_notify_from_action( | |
19 | struct lttng_action *action) | |
20 | { | |
21 | assert(action); | |
22 | ||
23 | return container_of(action, struct lttng_action_notify, parent); | |
24 | } | |
25 | ||
26 | static const struct lttng_action_notify *action_notify_from_action_const( | |
27 | const struct lttng_action *action) | |
28 | { | |
29 | assert(action); | |
30 | ||
31 | return container_of(action, struct lttng_action_notify, parent); | |
32 | } | |
a58c490f JG |
33 | |
34 | static | |
35 | void lttng_action_notify_destroy(struct lttng_action *action) | |
36 | { | |
1c2c1c05 JR |
37 | struct lttng_action_notify *notify_action; |
38 | notify_action = action_notify_from_action(action); | |
39 | lttng_firing_policy_destroy(notify_action->policy); | |
40 | free(notify_action); | |
a58c490f JG |
41 | } |
42 | ||
43 | static | |
3647288f | 44 | int lttng_action_notify_serialize(struct lttng_action *action, |
c0a66c84 | 45 | struct lttng_payload *payload) |
a58c490f | 46 | { |
1c2c1c05 JR |
47 | int ret; |
48 | struct lttng_action_notify *notify_action; | |
49 | ||
50 | if (!action || !IS_NOTIFY_ACTION(action) || !payload) { | |
51 | ret = -1; | |
52 | goto end; | |
53 | } | |
54 | ||
55 | DBG("Serializing notify action"); | |
56 | ||
57 | notify_action = action_notify_from_action(action); | |
58 | DBG("Serializing notify action firing policy"); | |
59 | ret = lttng_firing_policy_serialize(notify_action->policy, payload); | |
60 | ||
61 | end: | |
62 | return ret; | |
a58c490f JG |
63 | } |
64 | ||
3dd04a6a JR |
65 | static |
66 | bool lttng_action_notify_is_equal(const struct lttng_action *a, | |
67 | const struct lttng_action *b) | |
68 | { | |
1c2c1c05 JR |
69 | const struct lttng_action_notify *_a, *_b; |
70 | ||
71 | _a = action_notify_from_action_const(a); | |
72 | _b = action_notify_from_action_const(b); | |
73 | return lttng_firing_policy_is_equal(_a->policy, _b->policy); | |
3dd04a6a JR |
74 | } |
75 | ||
a58c490f JG |
76 | struct lttng_action *lttng_action_notify_create(void) |
77 | { | |
1c2c1c05 JR |
78 | struct lttng_firing_policy *policy = NULL; |
79 | struct lttng_action_notify *notify = NULL; | |
80 | struct lttng_action *action = NULL; | |
a58c490f JG |
81 | |
82 | notify = zmalloc(sizeof(struct lttng_action_notify)); | |
83 | if (!notify) { | |
84 | goto end; | |
85 | } | |
86 | ||
1c2c1c05 JR |
87 | /* Default policy. */ |
88 | policy = lttng_firing_policy_every_n_create(1); | |
89 | if (!policy) { | |
90 | goto end; | |
91 | } | |
92 | ||
6acb3f46 SM |
93 | lttng_action_init(¬ify->parent, LTTNG_ACTION_TYPE_NOTIFY, NULL, |
94 | lttng_action_notify_serialize, | |
3dd04a6a | 95 | lttng_action_notify_is_equal, |
6acb3f46 | 96 | lttng_action_notify_destroy); |
1c2c1c05 JR |
97 | |
98 | notify->policy = policy; | |
99 | policy = NULL; | |
100 | ||
101 | action = ¬ify->parent; | |
102 | notify = NULL; | |
103 | ||
a58c490f | 104 | end: |
1c2c1c05 JR |
105 | free(notify); |
106 | lttng_firing_policy_destroy(policy); | |
107 | return action; | |
a58c490f | 108 | } |
869a3c2d | 109 | |
c0a66c84 JG |
110 | ssize_t lttng_action_notify_create_from_payload( |
111 | struct lttng_payload_view *view, | |
869a3c2d SM |
112 | struct lttng_action **action) |
113 | { | |
1c2c1c05 | 114 | enum lttng_action_status status; |
869a3c2d | 115 | ssize_t consumed_length; |
1c2c1c05 JR |
116 | struct lttng_firing_policy *firing_policy = NULL; |
117 | struct lttng_action *_action = NULL; | |
869a3c2d | 118 | |
1c2c1c05 JR |
119 | consumed_length = lttng_firing_policy_create_from_payload( |
120 | view, &firing_policy); | |
121 | if (!firing_policy) { | |
869a3c2d SM |
122 | consumed_length = -1; |
123 | goto end; | |
124 | } | |
125 | ||
1c2c1c05 JR |
126 | _action = lttng_action_notify_create(); |
127 | if (!_action) { | |
128 | consumed_length = -1; | |
129 | goto end; | |
130 | } | |
131 | ||
132 | status = lttng_action_notify_set_firing_policy(_action, firing_policy); | |
133 | if (status != LTTNG_ACTION_STATUS_OK) { | |
134 | consumed_length = -1; | |
135 | goto end; | |
136 | } | |
137 | ||
138 | *action = _action; | |
139 | _action = NULL; | |
140 | ||
869a3c2d | 141 | end: |
1c2c1c05 JR |
142 | lttng_firing_policy_destroy(firing_policy); |
143 | lttng_action_destroy(_action); | |
869a3c2d SM |
144 | return consumed_length; |
145 | } | |
1c2c1c05 JR |
146 | |
147 | enum lttng_action_status lttng_action_notify_set_firing_policy( | |
148 | struct lttng_action *action, | |
149 | const struct lttng_firing_policy *policy) | |
150 | { | |
151 | enum lttng_action_status status; | |
152 | struct lttng_action_notify *notify_action; | |
153 | struct lttng_firing_policy *copy = NULL; | |
154 | ||
155 | if (!action || !policy || !IS_NOTIFY_ACTION(action)) { | |
156 | status = LTTNG_ACTION_STATUS_INVALID; | |
157 | goto end; | |
158 | } | |
159 | ||
160 | copy = lttng_firing_policy_copy(policy); | |
161 | if (!copy) { | |
162 | status = LTTNG_ACTION_STATUS_ERROR; | |
163 | goto end; | |
164 | } | |
165 | ||
166 | notify_action = action_notify_from_action(action); | |
167 | ||
168 | /* Free the previous firing policy .*/ | |
169 | lttng_firing_policy_destroy(notify_action->policy); | |
170 | ||
171 | /* Assign the policy. */ | |
172 | notify_action->policy = copy; | |
173 | status = LTTNG_ACTION_STATUS_OK; | |
174 | copy = NULL; | |
175 | ||
176 | end: | |
177 | lttng_firing_policy_destroy(copy); | |
178 | return status; | |
179 | } | |
180 | ||
181 | enum lttng_action_status lttng_action_notify_get_firing_policy( | |
182 | const struct lttng_action *action, | |
183 | const struct lttng_firing_policy **policy) | |
184 | { | |
185 | enum lttng_action_status status; | |
186 | const struct lttng_action_notify *notify_action; | |
187 | ||
188 | if (!action || !policy || !IS_NOTIFY_ACTION(action)) { | |
189 | status = LTTNG_ACTION_STATUS_INVALID; | |
190 | goto end; | |
191 | } | |
192 | ||
193 | notify_action = action_notify_from_action_const(action); | |
194 | ||
195 | *policy = notify_action->policy; | |
196 | status = LTTNG_ACTION_STATUS_OK; | |
197 | end: | |
198 | return status; | |
199 | } |