📄 does windriver poll the interrupt (busy wait).htm
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<TD width="3%"><B>Doc ID:</B></TD>
<TD align=left width="85%">102</TD></TR>
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<TD width="3%"><B>Product:</B></TD>
<TD align=left width="85%">WinDriver</TD></TR>
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<TD align=left width="3%"><B>Version:</B></TD>
<TD align=left width="10%"> --</TD></TR></TBODY></TABLE><!-- ////////////////// TD HEADER - END ////////////////// -->
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<TD class=font1headblue width="100%"><BR>Does WinDriver poll
the interrupt (Busy Wait)? </TD></TR><!-- ////////////////// TD SUBJECT - END ////////////////// --><!-- ////////////////// TD BODY - START////////////////// -->
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<TD class=font1 width="100%"><BR>No. When calling <FONT
face=Courier size=-1>WD_IntWait()</FONT> (which is called from
the high-level <FONT face=Courier
size=-1>WDC_IntEnable()</FONT> and <FONT face=Courier
size=-1>InterruptEnable()</FONT> APIs) the calling thread is
put to sleep. CPU cycles are not wasted on waiting. When an
interrupt occurs the thread is awaken and you can perform your
interrupt handling. <BR><BR><A class=links
href="http://www.jungo.com/support/tech_docs/td102.html#top">Back
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