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7<TITLE>OS_SetThreadPriority</TITLE>
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11<H1 align="left">OS_SetThreadPriority <IMG src="../../image/NTR.gif" align="middle"><IMG src="../../image/TWL.gif" align="middle"></H1>
12<H2>Syntax</H2>
13<DL>
14  <DD>
15  <PRE><CODE>#include &lt;nitro/os.h&gt;</CODE></PRE>
16  <PRE><CODE>BOOL OS_SetThreadPriority( OSThread* thread, u32 prio );
17  </CODE></PRE>
18</DL>
19<H2>Arguments</H2>
20<TABLE border="1" width="100%">
21  <TBODY>
22    <TR>
23      <TD width="13%"><EM><STRONG>thread</STRONG></EM></TD>
24      <TD width="87%">A pointer to the thread you want to prioritize.</TD>
25    </TR>
26    <TR>
27      <TD width="13%"><EM><STRONG>prio</STRONG></EM></TD>
28      <TD width="87%">The priority level you want to set (0-31).</TD>
29    </TR>
30  </TBODY>
31</TABLE>
32<H2>Return Values</H2>
33<P>Returns TRUE if priority setting succeeded. Returns TRUE even if you set to the same priority as the original. Returns FALSE if there is no thread.</P>
34<H2>Description</H2>
35<P>This function sets thread priority.</P>
36<P>The thread priorities it can set (<B><I>priority</I></B>) range from 0 to 31. Threads that have a priority level of 0 have the highest priority. If thread priorities change, scheduling might also change.</P>
37<P>A thread can also specify itself in <B><I>thread</I></B>.</P>
38<P>The thread system creates an idle thread (priority 32) during <code><a href="OS_InitThread.html">OS_InitThread()</a></code>, but its priority cannot be changed.</P>
39<H2>See Also</H2>
40<P><code><a href="OS_InitThread.html">OS_InitThread</a>, <a href="OS_GetThreadPriority.html">OS_GetThreadPriority</a></code></P>
41<H2>Revision History</H2>
42<P>2004/04/27 Added note about idle thread. <BR>2004/02/26 Initial version.</P>
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