unsafe void ReadThread()
{
if (!HandleAcquire())
{
return;
}
_readRunLoop = NativeMethods.CFRunLoopGetCurrent();
try
{
var inputCallback = new NativeMethods.IOHIDReportCallback(ReadThreadCallback);
var removalCallback = new NativeMethods.IOHIDCallback(RemovalCallback);
byte[] inputReport = new byte[Device.GetMaxInputReportLength()];
fixed(byte *inputReportBytes = inputReport)
{
NativeMethods.IOHIDDeviceRegisterInputReportCallback(_handle,
(IntPtr)inputReportBytes, (IntPtr)inputReport.Length,
inputCallback, IntPtr.Zero);
NativeMethods.IOHIDDeviceRegisterRemovalCallback(_handle, removalCallback, IntPtr.Zero);
NativeMethods.IOHIDDeviceScheduleWithRunLoop(_handle, _readRunLoop, NativeMethods.kCFRunLoopDefaultMode);
NativeMethods.CFRunLoopRun();
NativeMethods.IOHIDDeviceUnscheduleFromRunLoop(_handle, _readRunLoop, NativeMethods.kCFRunLoopDefaultMode);
}
GC.KeepAlive(this);
GC.KeepAlive(inputCallback);
GC.KeepAlive(removalCallback);
GC.KeepAlive(_inputQueue);
}
finally
{
HandleRelease();
}
}
protected override void Run(Action readyCallback)
{
using (var manager = NativeMethods.IOHIDManagerCreate(IntPtr.Zero).ToCFType())
{
RunAssert(manager.IsSet, "HidSharp IOHIDManagerCreate failed.");
using (var matching = NativeMethods.IOServiceMatching("IOHIDDevice").ToCFType())
{
RunAssert(matching.IsSet, "HidSharp IOServiceMatching failed.");
var devicesChangedCallback = new NativeMethods.IOHIDDeviceCallback(DevicesChangedCallback);
NativeMethods.IOHIDManagerSetDeviceMatching(manager.Handle, matching.Handle);
NativeMethods.IOHIDManagerRegisterDeviceMatchingCallback(manager.Handle, devicesChangedCallback, IntPtr.Zero);
NativeMethods.IOHIDManagerRegisterDeviceRemovalCallback(manager.Handle, devicesChangedCallback, IntPtr.Zero);
var runLoop = NativeMethods.CFRunLoopGetCurrent();
NativeMethods.CFRetain(runLoop);
NativeMethods.IOHIDManagerScheduleWithRunLoop(manager, runLoop, NativeMethods.kCFRunLoopDefaultMode);
try
{
readyCallback();
NativeMethods.CFRunLoopRun();
}
finally
{
NativeMethods.IOHIDManagerUnscheduleFromRunLoop(manager, runLoop, NativeMethods.kCFRunLoopDefaultMode);
NativeMethods.CFRelease(runLoop);
}
GC.KeepAlive(devicesChangedCallback);
}
}
}
