AcxStreamStopIoActual function (acxstreams.h)

Article
04/02/2024

The AcxStreamStopIoActual function is used to signal to the operating system to temporarily stop stream IO. This allows the driver a short period of time to run time sensitive tasks, and then resume IO after the execution of time sensitive code is complete.

Syntax

NTSTATUS AcxStreamStopIoActual(
  ACXSTREAM Stream,
  ULONG     Flags,
  PVOID     ObjectTag,
  LONG      Line,
  PCCH      File
);

Parameters

Stream

An existing ACXSTREAM Object. For more information, see ACX - Summary of ACX Objects.

Flags

Set to AcxStopIoNoFlags.

ObjectTag

An optional Tag that is a driver-defined value that the framework includes with diagnostic tracing.

Line

The Line number in the driver code that can be displayed for diagnostic purposes.

File

The file name in the driver code that can be displayed for diagnostic purposes.

Return value

Returns STATUS_SUCCESS if the call was successful. Otherwise, it returns an appropriate error code. For more information, see Using NTSTATUS Values.

Remarks

It is not recommended to use this version of the stop IO call, but rather AcxStreamStopIoWithTag.

ACX requirements

Minimum ACX version: 1.0

For more information about ACX versions, see ACX version overview.

Requirements

Requirement	Value
Header	acxstreams.h
IRQL	PASSIVE_LEVEL

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