1 files changed, 25 insertions, 0 deletions
diff --git a/SwifTools/Idle/MacOSXIdleQuerier.cpp b/SwifTools/Idle/MacOSXIdleQuerier.cpp
new file mode 100644
index 0000000..ac6dff9
--- /dev/null
+++ b/SwifTools/Idle/MacOSXIdleQuerier.cpp
@@ -0,0 +1,25 @@
+#include "SwifTools/Idle/MacOSXIdleQuerier.h"
+
+#include <cassert>
+#include <iostream>
+#include <CoreFoundation/CoreFoundation.h>
+
+namespace Swift {
+
+MacOSXIdleQuerier::MacOSXIdleQuerier() : ioService(NULL) {
+	mach_port_t masterPort;
+	IOMasterPort(MACH_PORT_NULL, &masterPort);
+	ioService = IOServiceGetMatchingService(masterPort, IOServiceMatching("IOHIDSystem"));
+	assert(ioService);
+}
+
+int MacOSXIdleQuerier::getIdleTimeSeconds() {
+	CFTypeRef property = IORegistryEntryCreateCFProperty(ioService, CFSTR("HIDIdleTime"), kCFAllocatorDefault, 0);
+	uint64_t idle = 0;
+	bool result = CFNumberGetValue((CFNumberRef)property, kCFNumberSInt64Type, &idle);
+	assert(result);
+	CFRelease(property);
+	return idle / 1000000000;
+}
+
+}