/// <summary>
/// Constructs a new device search instance
/// </summary>
/// <param name="host">The host instance</param>
/// <param name="address">The device address to search for</param>
/// <param name="callback">The callback object for the search</param>
public DeviceSearch(Host host, Address address, IDeviceSearchCallback callback)
{
this.Host = host;
this.IsInstanceSearch = false;
this.Address = address;
this.Callback = callback;
this.Attempt = 0;
this._timer = new Timer(
_tick,
null,
DeviceSearchInterval,
DeviceSearchInterval
);
}
/// <summary>
/// Constructs a new device search instance
/// </summary>
/// <param name="host">The host instance</param>
/// <param name="instance">The device instance to search for</param>
/// <param name="callback">The callback object for the search</param>
public DeviceSearch(Host host, uint instance, IDeviceSearchCallback callback)
{
this.Host = host;
this.IsInstanceSearch = true;
this.Instance = instance;
this.Callback = callback;
this.Attempt = 0;
this._timer = new Timer(
_tick,
null,
DeviceSearchInterval,
DeviceSearchInterval
);
}
/// <summary>
/// Searches for a device (Sends a who-is request)
/// </summary>
/// <param name="address">The address of the device to search for</param>
/// <param name="callback">The callback to invoke when the device is found</param>
public void SearchForDevice(Address address, IDeviceSearchCallback callback)
{
lock (_lock)
{
var device = _devices.GetByAddress(address);
if (device != null)
{
callback.DeviceFound(device);
}
else
{
DeviceSearch search = new DeviceSearch(this, address, callback);
this._deviceSearches.AddLast(search);
_sendWhoIsForAddress(address);
}
}
}
/// <summary>
/// Searches for a device (Sends a who-is request)
/// </summary>
/// <param name="instance">The instance of the device to search for</param>
/// <param name="callback">The callback to invoke when the device is found</param>
public void SearchForDevice(uint instance, IDeviceSearchCallback callback)
{
lock (_lock)
{
var device = _devices.Get(instance);
if (device != null)
{
callback.DeviceFound(device);
}
else
{
DeviceSearch search = new DeviceSearch(this, instance, callback);
this._deviceSearches.AddLast(search);
_sendWhoIsForInstance(instance);
}
}
}
