#ifndef _NTRTL_H
//
// Run Once
//
#ifndef _RTL_RUN_ONCE_DEF

/**
 * Represents a one-time initialization (run-once) synchronization object.
 */
typedef union _RTL_RUN_ONCE
{
    PVOID Ptr;
} RTL_RUN_ONCE, *PRTL_RUN_ONCE;

#endif
#endif
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