c++ - Active Wait in Windows I/O Driver -

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Accepting the answer to that question Thanks to doing, I realized that keeping the windows waiting for the data is the driver's responsibility.

As I am using Dakan, I can see driver code. When you do not return any data, the OBOBL forces fulfill the IRP request to stop waiting for windows data and close the file.

What I have to do is catch the application, the data is available and as I have said in the original question, the user should be able to cancel this process at any time.

The request to complete the code is:

  Pirip irp irp-> IoStatus.Status = STATUS_END_OF_FILE IoCompleteRequest (IRP, IO_NO_INCREMENT);  

Actually, I can return any error code, and I wanted to know that some status codes (one of the NTSTATUS values), windows waiting for the data Forces, and returns that status code

I have already tried to return STATUS_WAIT_0, but it does not seem to work.

Thank you again :)

You should return STATUS_PENDING and cancel for the IRP Karatecan should be set. Complete the IRP when the data is available or the error occurred. See more for more information.