static boolean_t eventCallback(void * target, void * refcon, void * sender, IOHIDEventRef event)
{
__eventCount++;
__eventCounts[IOHIDEventGetType(event)]++;
__eventLatencyTotal += IOHIDEventGetLatency(event, kMicrosecondScale);
if ( ((1<<IOHIDEventGetType(event)) & __eventMask) != 0 ) {
CFStringRef outputString = CFStringCreateWithFormat(kCFAllocatorDefault, NULL, CFSTR("%@\n"), event);
if ( outputString ) {
printf("%s", CFStringGetCStringPtr(outputString, kCFStringEncodingMacRoman));
CFRelease(outputString);
}
}
return false;
}
boolean_t isNXEvent (IOHIDEventRef event) {
CFIndex usage = IOHIDEventGetIntegerValue(event, kIOHIDEventFieldVendorDefinedUsage);
if (IOHIDEventGetType(event) == kIOHIDEventTypeVendorDefined &&
IOHIDEventGetIntegerValue(event, kIOHIDEventFieldVendorDefinedUsagePage) == kHIDPage_AppleVendor &&
(usage == kHIDUsage_AppleVendor_NXEvent ||
usage == kHIDUsage_AppleVendor_NXEvent_Translated ||
usage == kHIDUsage_AppleVendor_NXEvent_Diagnostic)) {
return true;
}
return false;
}
void printNXEvents (IOHIDEventRef event) {
if (isNXEvent (event)) {
printNXEventInfo (event);
}
CFArrayRef childrens = IOHIDEventGetChildren (event);
for (CFIndex index = 0 , count = childrens ? CFArrayGetCount(childrens) : 0 ; index < count ; index++) {
IOHIDEventRef child = (IOHIDEventRef)CFArrayGetValueAtIndex(childrens, index);
if (isNXEvent (child)) {
printNXEventInfo (child);
}
}
}
IOHIDEventBlock eventBlock = ^(void * target __unused, void * refcon, void * sender __unused, IOHIDEventRef event)
{
IOHIDEventType type = IOHIDEventGetType(event);
uint64_t timestamp = IOHIDEventGetTimeStamp(event);
uint64_t interval = 0;
// RY: This should really be tracked per service, but I'm lazy
__eventCount++;
__eventCounts[type]++;
__eventLatencyTotal += IOHIDEventGetLatency(event, kMicrosecondScale);
if ( __eventLastTimestamps[type] ) {
CFNumberRef number = NULL;
interval = timestamp - __eventLastTimestamps[type];
interval *= __timeBaseinfo.numer;
