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Subject: Re: how to find out if stuff is in winboard pipe in c?

Author: Bas Hamstra

Date: 04:00:54 09/27/00

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Use PeekNamedPipe() to see if there is input without reading it.


Bas Hamstra.


On September 27, 2000 at 06:27:13, Mike Adams wrote:

>    In the past my engine has not read from the pipe untill after it was done
>thinking. this meant the rematch command did not work half the time if it was
>still thinking when the new game started.  So i thought why doesnt pulsar look
>at the pipe every 5000 nodes to see if the result command has been issued. Also
>this ability is neccesary for pondering.
>    i use the read statement to read the pipe. a=read(0,  buffer, 500);
>this works fine accept when i called it during search there was nothing in the
>pipe and it just hung tell i resigned, i was playing it as a guest, then it got
>the result info and it told it the game was over. i put output before and after
>the read statement so i realized it never left the line of code involving read
>tell there was something to read.
>    How do i poll the pipe to see if something is there before calling read in
>c?  I see in engine info.txt that the select command is recomended but in
>reading msdn i can find nothing involving select that is for c.  Sample code
>would be appreciated.  Pulsar uses windows 98.



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