#ifndef _NTRTL_H

// rev
/**
 * Accumulated system freeze/suspend bias, in 100-nanosecond units.
 *
 * \details Total time the system has spent in a frozen/suspended
 * (connected-standby) state. Subtracted from the raw interrupt time to yield
 * *unbiased* interrupt time:
 * \code
 * UnbiasedInterruptTime = SharedUserData->InterruptTime      // KUSER_SHARED_DATA+0x08
 *                       - RtlpFreezeTimeBias                 // this value
 *                       - SharedUserData->QpcBias;           // KUSER_SHARED_DATA+0x3B0
 * \endcode
 * Consumed by RtlQueryUnbiasedInterruptTime and the threadpool/WNF timer paths,
 * which read it in a torn-read guard loop since it is a 64-bit value updated by
 * the kernel.
 */
NTSYSAPI LONGLONG RtlpFreezeTimeBias;

#endif
View code on GitHub