projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 90aa04a1 FD |
1 | /* |
| 2 | * Copyright (C) 2020 Francis Deslauriers <francis.deslauriers@efficios.com> | |
| 3 | * | |
| 4 | * SPDX-License-Identifier: GPL-2.0-only | |
| 5 | * | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef _EVENT_NOTIFIER_ERROR_ACCOUNTING_H | |
| 9 | #define _EVENT_NOTIFIER_ERROR_ACCOUNTING_H | |
| 10 | ||
| 11 | #include <stdint.h> | |
| 533a90fb | 12 | |
| 90aa04a1 FD |
13 | #include <lttng/trigger/trigger.h> |
| 14 | ||
| 533a90fb FD |
15 | #include "ust-app.h" |
| 16 | ||
| 90aa04a1 FD |
17 | enum event_notifier_error_accounting_status { |
| 18 | EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK, | |
| 19 | EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_ERR, | |
| 20 | EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_NOT_FOUND, | |
| 21 | EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_NOMEM, | |
| 22 | EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_NO_INDEX_AVAILABLE, | |
| 533a90fb | 23 | EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_APP_DEAD, |
| 90aa04a1 FD |
24 | }; |
| 25 | ||
| 761ffce2 FD |
26 | /* |
| 27 | * Initialize the event notifier error accounting system. | |
| 28 | * `buffer_size_kernel` and `buffer_size_ust` represent the number of buckets | |
| 29 | * to be allocated for each domain. | |
| 30 | */ | |
| 90aa04a1 | 31 | enum event_notifier_error_accounting_status |
| 761ffce2 FD |
32 | event_notifier_error_accounting_init(uint64_t buffer_size_kernel, |
| 33 | uint64_t buffer_size_ust); | |
| 90aa04a1 | 34 | |
| 761ffce2 FD |
35 | /* |
| 36 | * Register the kernel event notifier group. | |
| 37 | * This allocates the counter object on the kernel side. | |
| 38 | */ | |
| 90aa04a1 FD |
39 | enum event_notifier_error_accounting_status |
| 40 | event_notifier_error_accounting_register_kernel( | |
| 41 | int kernel_event_notifier_group_fd); | |
| 42 | ||
| 533a90fb | 43 | #ifdef HAVE_LIBLTTNG_UST_CTL |
| 761ffce2 FD |
44 | |
| 45 | /* | |
| 46 | * Register a UST application. | |
| 47 | * | |
| 48 | * This reuses (or creates) the counter object of the app UID. | |
| 49 | */ | |
| 533a90fb FD |
50 | enum event_notifier_error_accounting_status |
| 51 | event_notifier_error_accounting_register_app(struct ust_app *app); | |
| 52 | ||
| 761ffce2 FD |
53 | /* |
| 54 | * Unregister a UST application. | |
| 55 | */ | |
| 533a90fb FD |
56 | enum event_notifier_error_accounting_status |
| 57 | event_notifier_error_accounting_unregister_app(struct ust_app *app); | |
| 58 | #else /* HAVE_LIBLTTNG_UST_CTL */ | |
| 59 | static inline | |
| 60 | enum event_notifier_error_accounting_status | |
| 61 | event_notifier_error_accounting_register_app(struct ust_app *app) | |
| 62 | { | |
| 63 | return EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK; | |
| 64 | } | |
| 65 | ||
| 66 | static inline | |
| 67 | enum event_notifier_error_accounting_status | |
| 68 | event_notifier_error_accounting_unregister_app(struct ust_app *app) | |
| 69 | { | |
| 70 | return EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK; | |
| 71 | } | |
| 72 | #endif /* HAVE_LIBLTTNG_UST_CTL */ | |
| 73 | ||
| 761ffce2 FD |
74 | /* |
| 75 | * Allocates, reserves and returns the error counter index for that trigger. | |
| 76 | */ | |
| 90aa04a1 FD |
77 | enum event_notifier_error_accounting_status |
| 78 | event_notifier_error_accounting_register_event_notifier( | |
| 79 | const struct lttng_trigger *trigger, | |
| 80 | uint64_t *error_counter_index); | |
| 81 | ||
| 82 | enum event_notifier_error_accounting_status | |
| 83 | event_notifier_error_accounting_get_count( | |
| 84 | const struct lttng_trigger *trigger, | |
| 85 | uint64_t *count); | |
| 86 | ||
| 87 | void event_notifier_error_accounting_unregister_event_notifier( | |
| 88 | const struct lttng_trigger *trigger); | |
| 89 | ||
| 90 | void event_notifier_error_accounting_fini(void); | |
| 91 | ||
| 92 | #endif /* _EVENT_NOTIFIER_ERROR_ACCOUNTING_H */ |