| 1 | /* |
| 2 | * SPDX-License-Identifier: LGPL-2.1-only |
| 3 | * |
| 4 | * Copyright (C) 2016 EfficiOS Inc. |
| 5 | * Copyright (C) 2016 Alexandre Montplaisir <alexmonthy@efficios.com> |
| 6 | */ |
| 7 | |
| 8 | package org.lttng.ust.agent.context; |
| 9 | |
| 10 | /** |
| 11 | * Virtual class containing the Java side of the LTTng-UST context provider |
| 12 | * registering/unregistering methods. |
| 13 | * |
| 14 | * @author Alexandre Montplaisir |
| 15 | */ |
| 16 | final class LttngContextApi { |
| 17 | |
| 18 | private LttngContextApi() {} |
| 19 | |
| 20 | /** |
| 21 | * Register a context provider to UST. |
| 22 | * |
| 23 | * The callbacks are the same for all providers, and are defined in the .c |
| 24 | * file. The only needed information is the retriever (which is called |
| 25 | * "provider" from UST'S point of view) name. |
| 26 | * |
| 27 | * @param provider_name |
| 28 | * The name of the provider |
| 29 | * @return The pointer to the created provider object. It's useless in the |
| 30 | * Java space, but will be needed for |
| 31 | * {@link #unregisterProvider(long)}. |
| 32 | */ |
| 33 | static native long registerProvider(String provider_name); |
| 34 | |
| 35 | /** |
| 36 | * Unregister a previously-registered context provider from UST. |
| 37 | * |
| 38 | * @param provider_ref |
| 39 | * The pointer to the provider object, obtained from |
| 40 | * {@link #registerProvider} |
| 41 | */ |
| 42 | static native void unregisterProvider(long provider_ref); |
| 43 | } |
| 44 | |