NdisMSleep

This function delays execution of the caller for a specified interval, in microseconds.

VOID NdisMSleep(
IN ULONG MicrosecondsToSleep );

Parameters

• MicrosecondsToSleep
  Specifies the number of microseconds to delay.

Remarks

For the specified MicrosecondsToSleep, the caller's thread of execution is put into a wait state, thus allowing other threads to get work done on the current processor. When the specified interval expires, the caller of this function resumes execution.

An NDIS driver should always call this function in preference to the NdisStallExecution function. This function can accept a larger delay interval than NdisStallExecution, which should never be called with an interval greater than 50 microseconds.

Network adapter drivers can call this function from their MiniportInitialize and, possibly, MiniportHalt functions when either function must wait for state changes to occur in the network adapter before that function continues its operations.

Both this function and NdisStallExecution allow a network adapter driver to specify a delay consistently and independently of the clock speed of the host CPU. Neither function involves a timer object used by the NdisMSetTimer or the NdisMSetPeriodicTimer function. The resolution of the host system clock varies, so very short delays can take slightly longer than the caller of this function or NdisStallExecution specified.

Requirements

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

MiniportHalt, MiniportInitialize, NdisMSetTimer, NdisMSetPeriodicTimer, NdisStallExecution

 Last updated on Tuesday, July 13, 2004

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