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588c4b0d JG |
1 | /* |
2 | * Copyright (C) 2021 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
3 | * | |
4 | * SPDX-License-Identifier: GPL-2.0-only | |
5 | * | |
6 | */ | |
7 | ||
c9e313bc | 8 | #include "event-notifier-error-accounting.hpp" |
28ab034a JG |
9 | |
10 | #include <lttng/action/action-internal.hpp> | |
c9e313bc SM |
11 | #include <lttng/error-query-internal.hpp> |
12 | #include <lttng/trigger/trigger-internal.hpp> | |
588c4b0d | 13 | |
28ab034a JG |
14 | enum lttng_trigger_status lttng_trigger_add_error_results(const struct lttng_trigger *trigger |
15 | __attribute__((unused)), | |
16 | struct lttng_error_query_results *results | |
17 | __attribute__((unused))) | |
63dd3d7b JG |
18 | { |
19 | return LTTNG_TRIGGER_STATUS_OK; | |
20 | } | |
21 | ||
28ab034a JG |
22 | enum lttng_trigger_status |
23 | lttng_trigger_condition_add_error_results(const struct lttng_trigger *trigger, | |
24 | struct lttng_error_query_results *results) | |
588c4b0d JG |
25 | { |
26 | enum lttng_trigger_status status; | |
27 | uint64_t discarded_tracer_messages_count; | |
28 | enum event_notifier_error_accounting_status error_accounting_status; | |
29 | struct lttng_error_query_result *discarded_tracer_messages_counter = NULL; | |
30 | const char *trigger_name; | |
31 | uid_t trigger_owner; | |
32 | ||
33 | status = lttng_trigger_get_name(trigger, &trigger_name); | |
28ab034a JG |
34 | trigger_name = status == LTTNG_TRIGGER_STATUS_OK ? trigger_name : "(anonymous)"; |
35 | status = lttng_trigger_get_owner_uid(trigger, &trigger_owner); | |
a0377dfe | 36 | LTTNG_ASSERT(status == LTTNG_TRIGGER_STATUS_OK); |
588c4b0d | 37 | |
63dd3d7b JG |
38 | /* |
39 | * Only add discarded tracer messages count for applicable conditions. | |
40 | * As of 2.13, only "event rule matches" conditions can generate | |
41 | * reportable errors hence why this function is very specific to this | |
42 | * condition type. | |
43 | */ | |
43cee6f9 JR |
44 | if (!lttng_trigger_needs_tracer_notifier(trigger)) { |
45 | status = LTTNG_TRIGGER_STATUS_OK; | |
46 | goto end; | |
47 | } | |
48 | ||
588c4b0d | 49 | error_accounting_status = event_notifier_error_accounting_get_count( |
28ab034a | 50 | trigger, &discarded_tracer_messages_count); |
588c4b0d | 51 | if (error_accounting_status != EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK) { |
2520000c | 52 | ERR("Failed to retrieve tracer discarded messages count for trigger: trigger name = '%s', trigger owner uid = %d", |
28ab034a JG |
53 | trigger_name, |
54 | (int) trigger_owner); | |
588c4b0d JG |
55 | status = LTTNG_TRIGGER_STATUS_ERROR; |
56 | goto end; | |
57 | } | |
58 | ||
59 | discarded_tracer_messages_counter = lttng_error_query_result_counter_create( | |
28ab034a JG |
60 | "discarded tracer messages", |
61 | "Count of messages discarded by the tracer due to a communication error with the session daemon", | |
62 | discarded_tracer_messages_count); | |
588c4b0d JG |
63 | if (!discarded_tracer_messages_counter) { |
64 | status = LTTNG_TRIGGER_STATUS_ERROR; | |
65 | goto end; | |
66 | } | |
67 | ||
28ab034a | 68 | if (lttng_error_query_results_add_result(results, discarded_tracer_messages_counter)) { |
588c4b0d JG |
69 | status = LTTNG_TRIGGER_STATUS_ERROR; |
70 | goto end; | |
71 | } | |
72 | ||
73 | /* Ownership transferred to the results. */ | |
74 | discarded_tracer_messages_counter = NULL; | |
75 | ||
76 | status = LTTNG_TRIGGER_STATUS_OK; | |
77 | end: | |
78 | lttng_error_query_result_destroy(discarded_tracer_messages_counter); | |
79 | return status; | |
80 | } | |
81 | ||
28ab034a JG |
82 | enum lttng_trigger_status |
83 | lttng_trigger_add_action_error_query_results(struct lttng_trigger *trigger, | |
84 | struct lttng_error_query_results *results) | |
588c4b0d JG |
85 | { |
86 | enum lttng_trigger_status status; | |
87 | const char *trigger_name; | |
88 | uid_t trigger_owner; | |
89 | enum lttng_action_status action_status; | |
90 | ||
91 | status = lttng_trigger_get_name(trigger, &trigger_name); | |
28ab034a JG |
92 | trigger_name = status == LTTNG_TRIGGER_STATUS_OK ? trigger_name : "(anonymous)"; |
93 | status = lttng_trigger_get_owner_uid(trigger, &trigger_owner); | |
a0377dfe | 94 | LTTNG_ASSERT(status == LTTNG_TRIGGER_STATUS_OK); |
588c4b0d | 95 | |
28ab034a JG |
96 | action_status = |
97 | lttng_action_add_error_query_results(lttng_trigger_get_action(trigger), results); | |
588c4b0d JG |
98 | switch (action_status) { |
99 | case LTTNG_ACTION_STATUS_OK: | |
a644d2a4 | 100 | break; |
588c4b0d JG |
101 | default: |
102 | status = LTTNG_TRIGGER_STATUS_ERROR; | |
103 | goto end; | |
104 | } | |
105 | ||
106 | status = LTTNG_TRIGGER_STATUS_OK; | |
107 | end: | |
108 | return status; | |
109 | } |