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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
+<title>uIP 1.0: Clock interface</title>
+<link href="doxygen.css" rel="stylesheet" type="text/css">
+<link href="tabs.css" rel="stylesheet" type="text/css">
+</head><body>
+<!-- Generated by Doxygen 1.4.6 -->
+<div class="tabs">
+  <ul>
+    <li><a href="main.html"><span>Main&nbsp;Page</span></a></li>
+    <li><a href="modules.html"><span>Modules</span></a></li>
+    <li><a href="classes.html"><span>Data&nbsp;Structures</span></a></li>
+    <li><a href="files.html"><span>Files</span></a></li>
+    <li><a href="examples.html"><span>Examples</span></a></li>
+  </ul></div>
+<h1>Clock interface</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
+The clock interface is the interface between the <a class="el" href="a00156.html">timer library</a> and the platform specific clock functionality. 
+<p>
+The clock interface must be implemented for each platform that uses the <a class="el" href="a00156.html">timer library</a>.<p>
+The clock interface does only one this: it measures time. The clock interface provides a macro, CLOCK_SECOND, which corresponds to one second of system time.<p>
+<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="a00156.html">Timer library</a> </dd></dl>
+
+<p>
+<table border="0" cellpadding="0" cellspacing="0">
+<tr><td></td></tr>
+<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ge3ced0551b26c9b99cb45a86f34d100a"></a><!-- doxytag: member="clock::CLOCK_SECOND" ref="ge3ced0551b26c9b99cb45a86f34d100a" args="" -->
+#define&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00157.html#ge3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a></td></tr>
+
+<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">A second, measured in system clock time. <br></td></tr>
+<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00157.html#g78ab77b57cf2e00089f0a3a22508524c">clock_init</a> (void)</td></tr>
+
+<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Initialize the clock library.  <a href="#g78ab77b57cf2e00089f0a3a22508524c"></a><br></td></tr>
+<tr><td class="memItemLeft" nowrap align="right" valign="top">clock_time_t&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="a00157.html#ge5b7160f2e653725ba5e2024c3cb7bff">clock_time</a> (void)</td></tr>
+
+<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Get the current clock time.  <a href="#ge5b7160f2e653725ba5e2024c3cb7bff"></a><br></td></tr>
+</table>
+<hr><h2>Function Documentation</h2>
+<a class="anchor" name="g78ab77b57cf2e00089f0a3a22508524c"></a><!-- doxytag: member="clock.h::clock_init" ref="g78ab77b57cf2e00089f0a3a22508524c" args="(void)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+  <tr>
+    <td class="mdRow">
+      <table cellpadding="0" cellspacing="0" border="0">
+        <tr>
+          <td class="md" nowrap valign="top">void clock_init           </td>
+          <td class="md" valign="top">(&nbsp;</td>
+          <td class="md" nowrap valign="top">void&nbsp;</td>
+          <td class="mdname1" valign="top" nowrap>          </td>
+          <td class="md" valign="top">&nbsp;)&nbsp;</td>
+          <td class="md" nowrap></td>
+        </tr>
+      </table>
+    </td>
+  </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+  <tr>
+    <td>
+      &nbsp;
+    </td>
+    <td>
+
+<p>
+Initialize the clock library. 
+<p>
+This function initializes the clock library and should be called from the main() function of the system.     </td>
+  </tr>
+</table>
+<a class="anchor" name="ge5b7160f2e653725ba5e2024c3cb7bff"></a><!-- doxytag: member="clock.h::clock_time" ref="ge5b7160f2e653725ba5e2024c3cb7bff" args="(void)" --><p>
+<table class="mdTable" cellpadding="2" cellspacing="0">
+  <tr>
+    <td class="mdRow">
+      <table cellpadding="0" cellspacing="0" border="0">
+        <tr>
+          <td class="md" nowrap valign="top">clock_time_t clock_time           </td>
+          <td class="md" valign="top">(&nbsp;</td>
+          <td class="md" nowrap valign="top">void&nbsp;</td>
+          <td class="mdname1" valign="top" nowrap>          </td>
+          <td class="md" valign="top">&nbsp;)&nbsp;</td>
+          <td class="md" nowrap></td>
+        </tr>
+      </table>
+    </td>
+  </tr>
+</table>
+<table cellspacing="5" cellpadding="0" border="0">
+  <tr>
+    <td>
+      &nbsp;
+    </td>
+    <td>
+
+<p>
+Get the current clock time. 
+<p>
+This function returns the current system clock time.<p>
+<dl compact><dt><b>Returns:</b></dt><dd>The current clock time, measured in system ticks. </dd></dl>
+
+<p>
+Referenced by <a class="el" href="a00195.html#l00121">timer_expired()</a>, <a class="el" href="a00195.html#l00104">timer_restart()</a>, and <a class="el" href="a00195.html#l00064">timer_set()</a>.    </td>
+  </tr>
+</table>
+<hr size="1"><address style="align: right;"><small>Generated on Mon Jun 12 10:23:02 2006 for uIP 1.0 by&nbsp;
+<a href="http://www.doxygen.org/index.html">
+<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address>
+</body>
+</html>