在wdm.h中类型名称'PRKMUTEX'中'R'的含义是什么？

Question

A short example excerpted from wdm.h

typedef struct _KMUTANT {
    DISPATCHER_HEADER Header;
    LIST_ENTRY MutantListEntry;
    struct _KTHREAD *OwnerThread;
    BOOLEAN Abandoned;
    UCHAR ApcDisable;
} KMUTANT, *PKMUTANT, *PRKMUTANT, KMUTEX, *PKMUTEX, *PRKMUTEX;

I know 'P' means 'Pointer', but I don't know what 'R' means.

Any interpretation?

Answer 1

R将指针标识为受限指针 。

Answer 2

显然 ，“R ==限制指针”