/// <summary>
/// Waits for a signal to be raised.
///
/// The handler \p fn will be called after one of the signals in the set
/// is caught.
/// </summary>
/// <typeparam name="T">Type of the sigarg parameter passed to RaiseSignal().</typeparam>
/// <param name="fn">Handler function to call.</param>
public void AwaitSignalAsync <T>(AwaitSignalFnDelegate <T> fn) where T : class
{
YogiCore.SignalSetAwaitSignalAsyncFnDelegate wrapper = (ec, signal, sigargPtr, userarg) =>
{
try
{
T obj = null;
if (sigargPtr != IntPtr.Zero)
{
obj = (T)GCHandle.FromIntPtr(sigargPtr).Target;
}
fn(ErrorCodeToResult(ec), (Signals)signal, obj);
}
finally
{
GCHandle.FromIntPtr(userarg).Free();
}
};
var wrapperHandle = GCHandle.Alloc(wrapper);
try
{
var wrapperPtr = GCHandle.ToIntPtr(wrapperHandle);
int res = YogiCore.YOGI_SignalSetAwaitSignalAsync(Handle, wrapper, wrapperPtr);
CheckErrorCode(res);
}
catch
{
wrapperHandle.Free();
throw;
}
}
/// <summary>
/// Waits for a signal to be raised.
///
/// The handler fn will be called after one of the signals in the set
/// is caught.
/// </summary>
/// <param name="fn">Handler function to call.</param>
public void AwaitSignalAsync(AwaitSignalFnDelegate fn)
{
AwaitSignalAsync <object>((res, signal, sigarg) => { fn(res, signal); });
}
