/// <summary>
/// Remove the sigevent handler from the active channel.
/// </summary>
/// <param name="sigevent">he sigevent that was filled in by a call to <see cref="AddSigeventHandler"/>.</param>
/// <returns>true if the sigevent handler was successfully removed from the channel, false if otherwise.</returns>
public bool RemoveSigeventHandler(SafeSigeventHandle sigevent)
{
if (disposed)
{
throw new ObjectDisposedException("BPS");
}
if (sigevent == null)
{
throw new ArgumentNullException("sigevent");
}
if (sigevent.IsInvalid)
{
throw new ArgumentException("Sigevent is invalid");
}
var pointer = sigevent.DangerousGetHandle();
var success = bps_remove_sigevent_handler(pointer) == BPS_SUCCESS;
if (handleToStructPointer.ContainsKey(pointer) && success)
{
var dataPtr = handleToStructPointer[pointer];
handleToStructPointer.Remove(pointer);
allocatedPointers.Remove(dataPtr);
Util.FreeSerializePointer(dataPtr);
}
return(success);
}
/// <summary>
/// Add a sigevent handler to the active channel.
/// </summary>
/// <param name="sigevent">An allocated sigevent that will be filled in by this function.</param>
/// <param name="sigeventHandler">
/// The sigevent callback that gets fired whenever the channel receives the corresponding sigevent. If the function returns false, than it is removed from the active channel.
/// </param>
/// <param name="handlerData">Service specific data that will be passed into every call to <paramref name="sigeventHandler"/>.</param>
/// <returns>true if the sigevent handler was successfully registered, and sigevent was filled in. false if otherwise.</returns>
public bool AddSigeventHandler(SafeSigeventHandle sigevent, Func <object, bool> sigeventHandler, object handlerData = null)
{
if (disposed)
{
throw new ObjectDisposedException("BPS");
}
if (sigevent == null)
{
throw new ArgumentNullException("sigevent");
}
if (sigevent.IsInvalid)
{
throw new ArgumentException("Sigevent is invalid");
}
if (sigeventHandler == null)
{
throw new ArgumentNullException("sigeventHandler");
}
var toSerialize = handlerData == null ? sigeventHandler : (object)new object[] { sigeventHandler, handlerData };
var data = Util.SerializeToPointer(toSerialize);
if (data == IntPtr.Zero)
{
return(false);
}
var handle = sigevent.DangerousGetHandle();
var success = bps_add_sigevent_handler(handle, HandleSigevent, data) == BPS_SUCCESS;
if (success)
{
handleToStructPointer.Add(handle, data);
allocatedPointers.Add(data);
}
else
{
Util.FreeSerializePointer(data);
}
return(success);
}
