--- /dev/null
+++ Libc/Libc-825.24/sys/OSThermalNotification.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2007 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <dispatch/dispatch.h>
+#include <libkern/OSThermalNotification.h>
+#include <notify.h>
+
+#define OSThermalStatusName "com.apple.system.thermalstatus"
+
+const char * const kOSThermalNotificationName = OSThermalStatusName; 
+
+static const char * const kOSThermalMitigationNames[kOSThermalMitigationCount] = {
+	OSThermalStatusName,
+	"com.apple.system.thermalmitigation.70percenttorch",
+	"com.apple.system.thermalmitigation.70percentbacklight",
+	"com.apple.system.thermalmitigation.50percenttorch",
+	"com.apple.system.thermalmitigation.50percentbacklight",
+	"com.apple.system.thermalmitigation.disabletorch",
+	"com.apple.system.thermalmitigation.25percentbacklight",
+	"com.apple.system.thermalmitigation.disablemapshalo",
+	"com.apple.system.thermalmitigation.appterminate",
+	"com.apple.system.thermalmitigation.devicerestart",
+	"com.apple.system.thermalmitigation.thermaltableready"
+};
+
+static int tokens[kOSThermalMitigationCount];
+static dispatch_once_t predicates[kOSThermalMitigationCount];
+static bool thermalLevelsReady = false;
+
+OSThermalNotificationLevel _OSThermalNotificationLevelForBehavior(int behavior)
+{
+	uint64_t val = OSThermalNotificationLevelAny;
+	if (behavior >= 0 && behavior < kOSThermalMitigationCount) {
+		dispatch_once(&predicates[behavior], ^{
+			(void)notify_register_check(kOSThermalMitigationNames[behavior], &tokens[behavior]);
+		});
+		(void)notify_get_state(tokens[behavior], &val);
+	}
+	return (OSThermalNotificationLevel)val;
+}
+
+void _OSThermalNotificationSetLevelForBehavior(int level, int behavior)
+{
+	uint64_t val = (uint64_t)level;
+	if (behavior >= 0 && behavior < kOSThermalMitigationCount) {
+		dispatch_once(&predicates[behavior], ^{
+			(void)notify_register_check(kOSThermalMitigationNames[behavior], &tokens[behavior]);
+		});
+		(void)notify_set_state(tokens[behavior], val);
+
+		// Note:  
+		// - We are ready when we program in the appterminate value. 
+		// - Assumes that user programs kOSThermalMitigationNone level less than 
+		//   kOSThermalMitigationAppTerminate & kOSThermalMitigationDeviceRestart  
+		if (behavior == kOSThermalMitigationAppTerminate) {
+			dispatch_once(&predicates[kOSThermalMitigationThermalTableReady], ^{
+				(void)notify_register_check(kOSThermalMitigationNames[kOSThermalMitigationThermalTableReady], &tokens[kOSThermalMitigationThermalTableReady]);
+			});
+			(void)notify_set_state(tokens[kOSThermalMitigationThermalTableReady], kOSThermalMitigationCount);
+		}
+	}
+}
+
+
+OSThermalNotificationLevel OSThermalNotificationCurrentLevel(void)
+{
+	if (thermalLevelsReady) {
+		return _OSThermalNotificationLevelForBehavior(kOSThermalMitigationNone);
+	}
+
+	uint64_t tableReady = 0;
+
+	dispatch_once(&predicates[kOSThermalMitigationThermalTableReady], ^{
+		(void)notify_register_check(kOSThermalMitigationNames[kOSThermalMitigationThermalTableReady], &tokens[kOSThermalMitigationThermalTableReady]);
+	});
+	(void)notify_get_state(tokens[kOSThermalMitigationThermalTableReady], &tableReady);
+
+	// If we are ready then optimize this so we don't call dispatch everytime.
+	if (tableReady == kOSThermalMitigationCount) {
+		thermalLevelsReady = true;
+		return _OSThermalNotificationLevelForBehavior(kOSThermalMitigationNone); 
+	}
+	else {
+		// Allow reset so we can dynamically change the table without thermal trap screen appearing. 
+		thermalLevelsReady = false;
+	}
+
+	// Not ready returns -1, which should not be equal or greater than any other thermal state. 
+	return OSThermalNotificationLevelAny;
+}