projects / lttng-tools.git / blame
| 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 | ||
| 8 | #ifndef LTTNG_NOTIFICATION_H | |
| 9 | #define LTTNG_NOTIFICATION_H | |
| 10 | ||
| 11 | #ifdef __cplusplus | |
| 12 | extern "C" { | |
| 13 | #endif | |
| 14 | ||
| 15 | struct lttng_condition; | |
| 16 | struct lttng_evaluation; | |
| 17 | struct lttng_notification; | |
| 18 | ||
| 19 | /* | |
| e83f3215 JG |
20 | * Get a notification's condition. |
| 21 | * | |
| 22 | * The notification retains the ownership of both the condition and evaluation | |
| 23 | * objects. Hence, it is not valid to access those objects after the destruction | |
| 24 | * of their associated notification. | |
| 25 | * | |
| 26 | * The caller should check the condition's type in order to use the appropriate | |
| 27 | * specialized functions to access the condition's properties. | |
| 28 | * | |
| 29 | * Returns an lttng_condition object on success, NULL on error. | |
| a58c490f JG |
30 | */ |
| 31 | extern const struct lttng_condition *lttng_notification_get_condition( | |
| 32 | struct lttng_notification *notification); | |
| 33 | ||
| e83f3215 JG |
34 | /* |
| 35 | * Get a notification's condition's evaluation. | |
| 36 | * | |
| 37 | * The notification retains the ownership of the evaluation object. Hence, it is | |
| 38 | * not valid to access that object after the destruction of its associated | |
| 39 | * notification. | |
| 40 | * | |
| 41 | * The caller should check the evaluation's type in order to use the appropriate | |
| 42 | * specialized functions to access the evaluation's properties. | |
| 43 | * | |
| 44 | * Returns an lttng_evaluation object on success, NULL on error. | |
| 45 | */ | |
| a58c490f JG |
46 | extern const struct lttng_evaluation *lttng_notification_get_evaluation( |
| 47 | struct lttng_notification *notification); | |
| 48 | ||
| e83f3215 JG |
49 | /* |
| 50 | * Destroys (frees) a notification. The notification's condition and evaluation | |
| 51 | * are destroyed as a side-effect. | |
| 52 | */ | |
| a58c490f JG |
53 | extern void lttng_notification_destroy(struct lttng_notification *notification); |
| 54 | ||
| 55 | #ifdef __cplusplus | |
| 56 | } | |
| 57 | #endif | |
| 58 | ||
| 59 | #endif /* LTTNG_NOTIFICATION_H */ |