internal X11PlatformLifetimeEvents(AvaloniaX11Platform platform)
{
_platform = platform;
if (ICELib.IceAddConnectionWatch(
Marshal.GetFunctionPointerForDelegate(s_iceWatchProcDelegate),
IntPtr.Zero) == 0)
{
Logger.TryGet(LogEventLevel.Warning, LogArea.X11Platform)?.Log(this,
"SMLib was unable to add an ICE connection watcher.");
return;
}
byte[] errorBuf = new byte[255];
IntPtr clientIdRet = IntPtr.Zero;
var smcConn = SMLib.SmcOpenConnection(null,
IntPtr.Zero, 1, 0,
SmcSaveYourselfProcMask |
SmcSaveCompleteProcMask |
SmcShutdownCancelledProcMask |
SmcDieProcMask,
ref s_callbacks,
null,
ref clientIdRet,
errorBuf.Length,
errorBuf);
if (smcConn == IntPtr.Zero)
{
Logger.TryGet(LogEventLevel.Warning, LogArea.X11Platform)?.Log(this,
$"SMLib/ICELib reported a new error: {Encoding.ASCII.GetString(errorBuf)}");
return;
}
if (!s_nativeToManagedMapper.TryAdd(smcConn, this))
{
Logger.TryGet(LogEventLevel.Warning, LogArea.X11Platform)?.Log(this,
"SMLib was unable to add this instance to the native to managed map.");
return;
}
_ = SMLib.SmcSetErrorHandler(Marshal.GetFunctionPointerForDelegate(s_smcErrorHandlerDelegate));
_ = ICELib.IceSetErrorHandler(Marshal.GetFunctionPointerForDelegate(s_iceErrorHandlerDelegate));
_ = ICELib.IceSetIOErrorHandler(Marshal.GetFunctionPointerForDelegate(s_iceIoErrorHandlerDelegate));
_currentSmcConn = smcConn;
_currentIceConn = SMLib.SmcGetIceConnection(smcConn);
Task.Run(() =>
{
var token = _cancellationTokenSource.Token;
while (!token.IsCancellationRequested)
{
HandleRequests();
}
}, _cancellationTokenSource.Token);
}
private static void IceWatchHandler(IntPtr iceConn, IntPtr clientData, bool opening, IntPtr *watchData)
{
if (!opening)
{
return;
}
ICELib.IceRemoveConnectionWatch(Marshal.GetFunctionPointerForDelegate(s_iceWatchProcDelegate),
IntPtr.Zero);
}
private void HandleRequests()
{
if (ICELib.IceProcessMessages(_currentIceConn, out _, out _) ==
ICELib.IceProcessMessagesStatus.IceProcessMessagesIoError)
{
Logger.TryGet(LogEventLevel.Warning, LogArea.X11Platform)?.Log(this,
"SMLib lost its underlying ICE connection.");
Dispose();
}
}