IO_PRIORITY_INFO - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers

// ntifs.h

typedef struct _IO_PRIORITY_INFO {
  ULONG            Size;
  ULONG            ThreadPriority;
  ULONG            PagePriority;
  IO_PRIORITY_HINT IoPriority;
} IO_PRIORITY_INFO, *PIO_PRIORITY_INFO;
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Windows Driver Kit DDI reference (ns-ntifs-_io_priority_info)

_IO_PRIORITY_INFO structure

Description

The IO_PRIORITY_INFO structure is used to hold thread priority information.

Members

`Size`

Read-only member initialized by the IoInitializePriorityInfo routine.

`ThreadPriority`

Read-only member used to hold a thread's priority.

`PagePriority`

Read-only member used to hold a thread's paging priority.

`IoPriority`

Read-only member used to hold a thread's I/O priority.

Remarks

The IO_PRIORITY_INFO structure is used by the FltRetrieveIoPriorityInfo and FltApplyPriorityInfoThread routines to save and set a thread's priority state.

A structure of type IO_PRIORITY_INFO must be initialized before first use by calling either the IoInitializePriorityInfo routine or the FltApplyPriorityInfoThread routine.

See also

FltApplyPriorityInfoThread

FltGetIoPriorityHint

FltGetIoPriorityHintFromCallbackData

FltGetIoPriorityHintFromFileObject

FltGetIoPriorityHintFromThread

FltRetrieveIoPriorityInfo

FltSetIoPriorityHintIntoCallbackData

FltSetIoPriorityHintIntoFileObject

FltSetIoPriorityHintIntoThread

IoInitializePriorityInfo

View the official Windows Driver Kit DDI reference

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