/// <summary>
/// Initializes a new instance.
/// </summary>
/// <param name="targetDeviceId"></param>
/// <param name="sourceDeviceId"></param>
/// <param name="targetPath"></param>
/// <param name="sourcePath"></param>
public RnetEventMessage(RnetDeviceId targetDeviceId, RnetDeviceId sourceDeviceId, RnetPath targetPath,
RnetPath sourcePath, RnetEvent evt, ushort timestamp, ushort data, RnetPriority priority)
: base(targetDeviceId, sourceDeviceId, RnetMessageType.Event)
{
TargetPath = targetPath;
SourcePath = sourcePath;
Event = evt;
Timestamp = timestamp;
Data = data;
Priority = priority;
}
/// <summary>
/// Sends an event to the path on the device and returns the data after the event was received.
/// </summary>
/// <param name="evt"></param>
/// <param name="timestamp"></param>
/// <param name="data"></param>
/// <param name="priority"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public override Task<byte[]> SendEvent(RnetEvent evt, ushort timestamp, ushort data, RnetPriority priority, CancellationToken cancellationToken)
{
throw new System.NotImplementedException();
}
/// <summary>
/// Sends an event to the path on the device and returns the value after the event was received.
/// </summary>
/// <param name="evt"></param>
/// <param name="timestamp"></param>
/// <param name="data"></param>
/// <param name="priority"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public override async Task<byte[]> SendEvent(RnetEvent evt, ushort timestamp, ushort data, RnetPriority priority, CancellationToken cancellationToken)
{
return await RnetUtil.DefaultIfCancelled(async ct =>
{
using (await wait.EnterAsync(ct))
{
// clear cached data
buffer = null;
// initiate event followed by request data message
await Device.SendEvent(Path, evt, timestamp, data, priority, ct);
await Device.SendRequestData(Path, ct);
// wait for new data value
while (buffer == null && !ct.IsCancellationRequested)
await wait.WaitAsync(ct);
return buffer;
}
}, cancellationToken, Device.EventTimeoutCancellationToken);
}
/// <summary>
/// Issues an event message to the device.
/// </summary>
/// <param name="path"></param>
/// <param name="evt"></param>
/// <param name="timestamp"></param>
/// <param name="data"></param>
/// <param name="priority"></param>
/// <returns></returns>
public Task SendEvent(RnetPath path, RnetEvent evt, ushort timestamp = 0, ushort data = 0, RnetPriority priority = RnetPriority.Low)
{
return SendEvent(path, evt, timestamp, data, priority, CancellationToken.None);
}
/// <summary>
/// Issues an event message to the device.
/// </summary>
/// <param name="path"></param>
/// <param name="evt"></param>
/// <param name="timestamp"></param>
/// <param name="data"></param>
/// <returns></returns>
public async Task SendEvent(RnetPath path, RnetEvent evt, ushort timestamp, ushort data, RnetPriority priority, CancellationToken cancellationToken)
{
using (await send.LockAsync(cancellationToken))
using (await handshake.EnterAsync(cancellationToken))
{
handshakeMessage = null;
// send set data packet
await Bus.Client.Send(new RnetEventMessage(
DeviceId,
Bus.LocalDevice.DeviceId,
path,
RnetPath.Empty,
evt,
timestamp,
data,
priority));
// wait for handshake
if (priority == RnetPriority.High)
while (handshakeMessage == null)
await handshake.WaitAsync(cancellationToken);
}
}
