projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 526c7763 JG |
1 | /* |
| 2 | * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
| 3 | * | |
| 4 | * This library is free software; you can redistribute it and/or modify it | |
| 5 | * under the terms of the GNU Lesser General Public License, version 2.1 only, | |
| 6 | * as published by the Free Software Foundation. | |
| 7 | * | |
| 8 | * This library is distributed in the hope that it will be useful, but WITHOUT | |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License | |
| 11 | * for more details. | |
| 12 | * | |
| 13 | * You should have received a copy of the GNU Lesser General Public License | |
| 14 | * along with this library; if not, write to the Free Software Foundation, | |
| 15 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 16 | */ | |
| 17 | ||
| 18 | #ifndef LTTNG_NOTIFICATION_CHANNEL_H | |
| 19 | #define LTTNG_NOTIFICATION_CHANNEL_H | |
| 20 | ||
| 21 | #ifdef __cplusplus | |
| 22 | extern "C" { | |
| 23 | #endif | |
| 24 | ||
| 25 | struct lttng_endpoint; | |
| c254fb11 | 26 | struct lttng_condition; |
| 526c7763 JG |
27 | struct lttng_notification; |
| 28 | struct lttng_notification_channel; | |
| 526c7763 JG |
29 | |
| 30 | /* LTTng Notification channel */ | |
| 31 | enum lttng_notification_channel_status { | |
| 526c7763 JG |
32 | LTTNG_NOTIFICATION_CHANNEL_STATUS_NOTIFICATIONS_DROPPED = 1, |
| 33 | LTTNG_NOTIFICATION_CHANNEL_STATUS_OK = 0, | |
| c254fb11 JG |
34 | LTTNG_NOTIFICATION_CHANNEL_STATUS_ERROR = -1, |
| 35 | LTTNG_NOTIFICATION_CHANNEL_STATUS_CLOSED = -2, | |
| 3c47cdaf JG |
36 | /* Condition unknown. */ |
| 37 | LTTNG_NOTIFICATION_CHANNEL_STATUS_UNKNOWN = -3, | |
| c254fb11 JG |
38 | LTTNG_NOTIFICATION_CHANNEL_STATUS_UNSUPPORTED = -4, |
| 39 | LTTNG_NOTIFICATION_CHANNEL_STATUS_INVALID = -5, | |
| 526c7763 JG |
40 | }; |
| 41 | ||
| 526c7763 JG |
42 | extern struct lttng_notification_channel *lttng_notification_channel_create( |
| 43 | struct lttng_endpoint *endpoint); | |
| 44 | ||
| 45 | extern enum lttng_notification_channel_status | |
| 46 | lttng_notification_channel_get_next_notification( | |
| 47 | struct lttng_notification_channel *channel, | |
| 3c47cdaf | 48 | struct lttng_notification **notification); |
| 526c7763 JG |
49 | |
| 50 | extern enum lttng_notification_channel_status | |
| 51 | lttng_notification_channel_subscribe( | |
| 52 | struct lttng_notification_channel *channel, | |
| 53 | struct lttng_condition *condition); | |
| 54 | ||
| 55 | extern enum lttng_notification_channel_status | |
| 56 | lttng_notification_channel_unsubscribe( | |
| 57 | struct lttng_notification_channel *channel, | |
| 58 | struct lttng_condition *condition); | |
| 59 | ||
| 60 | extern void lttng_notification_channel_destroy( | |
| 61 | struct lttng_notification_channel *channel); | |
| 62 | ||
| 63 | #ifdef __cplusplus | |
| 64 | } | |
| 65 | #endif | |
| 66 | ||
| 67 | #endif /* LTTNG_NOTIFICATION_CHANNEL_H */ |