blob: f892823daa889119f3fcacc2282e995328eac4fe (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* Copyright (c) 2024 Vaughn Nugent
*
* Library: VNLib
* Package: VNLib.Plugins.Essentials.ServiceStack
* File: PluginRutimeEventHandler.cs
*
* PluginRutimeEventHandler.cs is part of VNLib.Plugins.Essentials.ServiceStack which
* is part of the larger VNLib collection of libraries and utilities.
*
* VNLib.Plugins.Essentials.ServiceStack is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 2 of the
* License, or (at your option) any later version.
*
* VNLib.Plugins.Essentials.ServiceStack is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see https://www.gnu.org/licenses/.
*/
using System.Linq;
using VNLib.Utils.Extensions;
using VNLib.Plugins.Runtime;
namespace VNLib.Plugins.Essentials.ServiceStack
{
internal sealed class PluginRutimeEventHandler(ServiceDomain Domain) : IPluginEventListener
{
///<inheritdoc/>
void IPluginEventListener.OnPluginLoaded(PluginController controller, object? state) => OnPluginLoaded((state as IManagedPlugin)!);
///<inheritdoc/>
void IPluginEventListener.OnPluginUnloaded(PluginController controller, object? state) => OnPluginUnloaded((state as IManagedPlugin)!);
/// <summary>
/// Called when a plugin has been successfully loaded and
/// should be put into service
/// </summary>
/// <param name="plugin">The plugin that was loaded</param>
internal void OnPluginLoaded(IManagedPlugin plugin)
{
//Run onload method before invoking other handlers
plugin.OnPluginLoaded();
//Get event listeners at event time because deps may be modified by the domain
ServiceGroup[] deps = Domain.ServiceGroups.Select(static d => d).ToArray();
//run onload method
deps.TryForeach(d => d.OnPluginLoaded(plugin));
}
/// <summary>
/// Called when a plugin is about to be unloaded and should
/// be removed from service.
/// </summary>
/// <param name="plugin">The plugin instance to unload</param>
internal void OnPluginUnloaded(IManagedPlugin plugin)
{
try
{
//Get event listeners at event time because deps may be modified by the domain
ServiceGroup[] deps = Domain.ServiceGroups.Select(static d => d).ToArray();
//Run unloaded method
deps.TryForeach(d => d.OnPluginUnloaded(plugin));
}
finally
{
//always unload the plugin wrapper
plugin.OnPluginUnloaded();
}
}
}
}
|
