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44 lines (41 loc) · 1.41 KB
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using System;
using System.Threading;
namespace UnityEditor.Hardware
{
public sealed class Usb
{
public delegate void OnDevicesChangedHandler(UsbDevice[] devices);
public static event Usb.OnDevicesChangedHandler DevicesChanged
{
add
{
Usb.OnDevicesChangedHandler onDevicesChangedHandler = Usb.DevicesChanged;
Usb.OnDevicesChangedHandler onDevicesChangedHandler2;
do
{
onDevicesChangedHandler2 = onDevicesChangedHandler;
onDevicesChangedHandler = Interlocked.CompareExchange<Usb.OnDevicesChangedHandler>(ref Usb.DevicesChanged, (Usb.OnDevicesChangedHandler)Delegate.Combine(onDevicesChangedHandler2, value), onDevicesChangedHandler);
}
while (onDevicesChangedHandler != onDevicesChangedHandler2);
}
remove
{
Usb.OnDevicesChangedHandler onDevicesChangedHandler = Usb.DevicesChanged;
Usb.OnDevicesChangedHandler onDevicesChangedHandler2;
do
{
onDevicesChangedHandler2 = onDevicesChangedHandler;
onDevicesChangedHandler = Interlocked.CompareExchange<Usb.OnDevicesChangedHandler>(ref Usb.DevicesChanged, (Usb.OnDevicesChangedHandler)Delegate.Remove(onDevicesChangedHandler2, value), onDevicesChangedHandler);
}
while (onDevicesChangedHandler != onDevicesChangedHandler2);
}
}
public static void OnDevicesChanged(UsbDevice[] devices)
{
if (Usb.DevicesChanged != null && devices != null)
{
Usb.DevicesChanged(devices);
}
}
}
}