/// <summary>
/// Enumerates the serial ports.
/// </summary>
/// <param name="iterator">An IOKit enumerator object.</param>
/// <param name="exclusionFilter">A function that will filter the entries in the returned enumerable.</param>
/// <returns>An enumerable of the serial ports in the system that are not excluded by <paramref name="exclusionFilter"/>.</returns>
public static IEnumerable <string> EnumerateSerialPorts(this IOIterator iterator, System.Predicate <string> exclusionFilter)
{
var ports = new List <string>();
if ((iterator != null) && iterator.IsValid)
{
var validEntry = true;
do
{
using (var serialPortRegistryEntry = iterator.Next <IORegistryEntry>())
{
validEntry = serialPortRegistryEntry != null;
if (validEntry)
{
var portName = CreateSerialPortName(serialPortRegistryEntry.GetProperty <NSString>(NativeMethods.kIOTTYDeviceKey));
DebugOutput("Discovered serial port: " + portName);
if ((exclusionFilter == null) || !exclusionFilter(portName))
{
ports.Add(portName);
}
}
}
}while (validEntry);
}
return(ports);
}
private static void TerminateNotification(IntPtr refcon, IntPtr iteratorPtr)
{
DebugOutput("IOService.IOKitNotificationPort: TerminateNotification");
var iterator = new IOIterator(iteratorPtr);
var newPorts = iterator.EnumerateSerialPorts(IOKitHelpers.BluetoothPortsExclusionFilter);
foreach (var port in newPorts)
{
ReportPortDeparture(port);
}
}
/// <summary>
/// Gets an iterator to enumerate RS-232 serial services.
/// </summary>
/// <returns>The RS-232 serial services iterator.</returns>
public IOIterator GetRS232SerialServicesIterator()
{
IOIterator iterator = null;
var servicesDictionary = GetRS232SerialMatchDictionary();
if (servicesDictionary != null)
{
iterator = new IOIterator(this, servicesDictionary);
}
return(iterator);
}
/// <summary>
/// Gets the USB device services iterator.
/// </summary>
/// <param name="vendorId">The numeric value of the vendor ID to match. If zero, this is ignored.</param>
/// <param name="productId">The numeric value of the product ID to match. If zero, this is ignored.</param>
/// <returns>The USB device services iterator.</returns>
public IOIterator GetUSBServicesIterator(int vendorId, int productId)
{
IOIterator iterator = null;
var servicesDictionary = GetUSBMatchDictionary(vendorId, productId);
if (servicesDictionary != null)
{
iterator = new IOIterator(this, servicesDictionary);
}
return(iterator);
}
/// <inheritdoc/>
internal override void StartInThread()
{
NotificationPort = new IONotificationPort();
Interop.NativeMethods.CFRunLoopAddSource(CFRunLoop.Current, NotificationPort.RunLoopSource, (NSString)CFRunLoop.ModeDefault);
var systemPowerDelegate = new IOServiceInterestCallback(SystemPowerInterestCallback);
IOConnectionPort = IOConnect.CreateSystemPowerMonitorConnection(systemPowerDelegate, this);
Interop.NativeMethods.CFRunLoopAddSource(CFRunLoop.Current, IOConnectionPort.NotificationPort.RunLoopSource, (NSString)CFRunLoop.ModeCommon);
var servicesDictionary = IOMachPort.GetRS232SerialMatchDictionary();
#if __UNIFIED__
servicesDictionary.DangerousRetain(); // retain an extra time because we're using it twice
#else
servicesDictionary.Retain(); // retain an extra time because we're using it twice
#endif // __UNIFIED__
var publishDelegate = new IONotificationPortCallback(FirstMatchNotification);
var callback = System.Runtime.InteropServices.Marshal.GetFunctionPointerForDelegate(publishDelegate);
IntPtr iterator;
var result = NativeMethods.IOServiceAddMatchingNotification(NotificationPort.Handle, KIOFirstMatchNotification, servicesDictionary.Handle, callback, IntPtr.Zero, out iterator);
System.Diagnostics.Debug.Assert(result == NativeMethods.Success, "IOService.IOKitNotificationPort: Failed to add notification.");
if (result == NativeMethods.Success)
{
PublishNotificationIterator = new IOIterator(iterator);
var terminateDelegate = new IONotificationPortCallback(TerminateNotification);
callback = System.Runtime.InteropServices.Marshal.GetFunctionPointerForDelegate(terminateDelegate);
result = NativeMethods.IOServiceAddMatchingNotification(NotificationPort.Handle, KIOTerminatedNotification, servicesDictionary.Handle, callback, IntPtr.Zero, out iterator);
TerminateNotificationIterator = new IOIterator(iterator);
// The iterators returned when adding the matching notifications must be iterated to
// completion in order to arm the notifications. Otherwise, they will never fire.
PublishNotificationIterator.EnumerateSerialPorts(null);
TerminateNotificationIterator.EnumerateSerialPorts(null);
}
}
/// <summary>
/// Initialize a new instance of IONotificationEventArgs.
/// </summary>
/// <param name="refcon">Custom data provided when the notification was registered.</param>
/// <param name="iterator">The data from the IOKit notification system.</param>
public IONotificationEventArgs(NSObject refcon, IOIterator iterator)
{
Refcon = refcon;
Iterator = iterator;
}
