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7<TITLE>OSWaitSemaphore</TITLE>
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10<H1>OSWaitSemaphore</H1>
11
12<H2>Syntax</H2>
13<dl><dd><pre class="construction">
14#include &lt;revolution/os.h&gt;
15
16s32  OSWaitSemaphore( OSSemaphore* sem );
17</pre></dd></dl>
18
19<H2>Arguments</H2>
20<TABLE class="arguments" border="1" >
21  <TBODY>
22    <TR>
23<TH><STRONG><EM><CODE>sem</CODE></EM></STRONG></TH>
24<TD>Pointer to a semaphore.</TD>
25    </TR>
26  </TBODY>
27</TABLE>
28
29<H2>Return Values</H2>
30<P>The previous semaphore count.</P>
31
32<H2>Description</H2>
33<P>Decrements the specified semaphore count. If the semaphore count is less than zero, the calling thread blocks until it can decrement the semaphore count.</P>
34
35<H2>See Also</H2>
36<P class="reference">
37<A href="../toc.html#Thread" target="contents">Thread Functions</A>,
38<A href="../toc.html#ThreadSynchronization" target="contents">Thread Synchronization Functions</A>
39</P>
40
41<H2>Revision History</H2>
42<P>
432006/03/01 Initial version.<br>
44</P>
45
46<hr><p>CONFIDENTIAL</p></body>
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