Commit | Line | Data |
---|---|---|
3165c2f5 AM |
1 | /* |
2 | * Copyright (C) 2015 - EfficiOS Inc., Alexandre Montplaisir <alexmonthy@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 | package org.lttng.ust.agent.client; | |
19 | ||
3daf5cba AM |
20 | import org.lttng.ust.agent.session.EventRule; |
21 | ||
3165c2f5 AM |
22 | /** |
23 | * TCP client listener interface. | |
24 | * | |
25 | * This interface contains callbacks that are called when the TCP client | |
26 | * receives commands from the session daemon. These callbacks will define what | |
27 | * do to with each command. | |
28 | * | |
29 | * @author Alexandre Montplaisir | |
30 | */ | |
31 | public interface ILttngTcpClientListener { | |
32 | ||
33 | /** | |
34 | * Callback for the TCP client to notify the listener agent that a request | |
3daf5cba | 35 | * for enabling an event rule was sent from the session daemon. |
3165c2f5 | 36 | * |
3daf5cba AM |
37 | * @param eventRule |
38 | * The event rule that was requested to be enabled | |
3165c2f5 AM |
39 | * @return Since we do not track individual sessions, right now this command |
40 | * cannot fail. It will always return true. | |
41 | */ | |
3daf5cba | 42 | boolean eventEnabled(EventRule eventRule); |
3165c2f5 AM |
43 | |
44 | /** | |
45 | * Callback for the TCP client to notify the listener agent that a request | |
46 | * for disabling an event was sent from the session daemon. | |
47 | * | |
48 | * @param eventName | |
49 | * The name of the event that was requested to be disabled. | |
50 | * @return True if the command completed successfully, false if we should | |
51 | * report an error (event was not enabled, etc.) | |
52 | */ | |
53 | boolean eventDisabled(String eventName); | |
54 | ||
55 | /** | |
56 | * List the all events currently enabled in the current tracing sessions. | |
57 | * | |
58 | * @return The list of enabled events | |
59 | */ | |
60 | Iterable<String> listEnabledEvents(); | |
61 | } |