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 | ||
| c9e313bc | 15 | #include "ust-app.hpp" |
| 533a90fb | 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, |
| 783db316 | 24 | EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_UNSUPPORTED, |
| 90aa04a1 FD |
25 | }; |
| 26 | ||
| 761ffce2 FD |
27 | /* |
| 28 | * Initialize the event notifier error accounting system. | |
| 29 | * `buffer_size_kernel` and `buffer_size_ust` represent the number of buckets | |
| 30 | * to be allocated for each domain. | |
| 31 | */ | |
| 90aa04a1 | 32 | enum event_notifier_error_accounting_status |
| 761ffce2 FD |
33 | event_notifier_error_accounting_init(uint64_t buffer_size_kernel, |
| 34 | uint64_t buffer_size_ust); | |
| 90aa04a1 | 35 | |
| 761ffce2 FD |
36 | /* |
| 37 | * Register the kernel event notifier group. | |
| 38 | * This allocates the counter object on the kernel side. | |
| 39 | */ | |
| 90aa04a1 FD |
40 | enum event_notifier_error_accounting_status |
| 41 | event_notifier_error_accounting_register_kernel( | |
| 42 | int kernel_event_notifier_group_fd); | |
| 43 | ||
| 533a90fb | 44 | #ifdef HAVE_LIBLTTNG_UST_CTL |
| 761ffce2 FD |
45 | |
| 46 | /* | |
| 47 | * Register a UST application. | |
| 48 | * | |
| 49 | * This reuses (or creates) the counter object of the app UID. | |
| 50 | */ | |
| 533a90fb FD |
51 | enum event_notifier_error_accounting_status |
| 52 | event_notifier_error_accounting_register_app(struct ust_app *app); | |
| 53 | ||
| 761ffce2 FD |
54 | /* |
| 55 | * Unregister a UST application. | |
| 56 | */ | |
| 533a90fb FD |
57 | enum event_notifier_error_accounting_status |
| 58 | event_notifier_error_accounting_unregister_app(struct ust_app *app); | |
| f46376a1 | 59 | |
| 533a90fb | 60 | #else /* HAVE_LIBLTTNG_UST_CTL */ |
| f46376a1 | 61 | |
| 533a90fb FD |
62 | static inline |
| 63 | enum event_notifier_error_accounting_status | |
| f46376a1 MJ |
64 | event_notifier_error_accounting_register_app( |
| 65 | struct ust_app *app __attribute__((unused))) | |
| 533a90fb FD |
66 | { |
| 67 | return EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK; | |
| 68 | } | |
| 69 | ||
| 70 | static inline | |
| 71 | enum event_notifier_error_accounting_status | |
| f46376a1 MJ |
72 | event_notifier_error_accounting_unregister_app( |
| 73 | struct ust_app *app __attribute__((unused))) | |
| 533a90fb FD |
74 | { |
| 75 | return EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK; | |
| 76 | } | |
| 77 | #endif /* HAVE_LIBLTTNG_UST_CTL */ | |
| 78 | ||
| 761ffce2 FD |
79 | /* |
| 80 | * Allocates, reserves and returns the error counter index for that trigger. | |
| 81 | */ | |
| 90aa04a1 FD |
82 | enum event_notifier_error_accounting_status |
| 83 | event_notifier_error_accounting_register_event_notifier( | |
| 84 | const struct lttng_trigger *trigger, | |
| 85 | uint64_t *error_counter_index); | |
| 86 | ||
| 87 | enum event_notifier_error_accounting_status | |
| 88 | event_notifier_error_accounting_get_count( | |
| 89 | const struct lttng_trigger *trigger, | |
| 90 | uint64_t *count); | |
| 91 | ||
| 92 | void event_notifier_error_accounting_unregister_event_notifier( | |
| 93 | const struct lttng_trigger *trigger); | |
| 94 | ||
| 95 | void event_notifier_error_accounting_fini(void); | |
| 96 | ||
| 97 | #endif /* _EVENT_NOTIFIER_ERROR_ACCOUNTING_H */ |