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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><link rel="STYLESHEET" type="text/css" href="wrs.css"><title> Overview </title></head><body bgcolor="FFFFFF"><p class="navbar" align="right"><a href="index.html"><img border="0" alt="[Contents]" src="icons/contents.gif"></a><a href="GuideIX.html"><img border="0" alt="[Index]" src="icons/index.gif"></a><a href="c-overview.html"><img border="0" alt="[Top]" src="icons/top.gif"></a><a href="c-overview7.html"><img border="0" alt="[Prev]" src="icons/prev.gif"></a><a href="c-overview9.html"><img border="0" alt="[Next]" src="icons/next.gif"></a></p><font face="Helvetica, sans-serif" class="sans"><h3 class="H2"><i><a name="86678">1.8 Extending Tornado</a></i></h3></font><dl class="margin"><dl class="margin"><dd><p class="Body"><a name="86679"> </a>Tornado can be extended and customized through standard APIs, as well as with optional products available from Wind River Systems and third-party vendors.</p></dl></dl><font face="Helvetica, sans-serif" class="sans"><h4 class="H4"><i><a name="84308">Published Application Program Interfaces</a></i></h4></font><dl class="margin"><dl class="margin"><dd><p class="Body"><a name="84310"> </a>A central feature of Tornado is the rich set of Application Program Interfaces (APIs) that allow access to every level of the technology. Much of Tornado is implemented in Tcl; source code is included automatically, because Tcl is an interpreted language. By virtue of their Tcl implementation, Tornado facilities for target inspection and manipulation are available for customization, extension, or simply for their educational value. Tornado goes further yet: every aspect of the user interface is also under user control. From forms to buttons and menu items, the Tornado environment can be customized. (For a brief summary of Tcl, see <a href="x-tclsumm.html#84659"><i class="title">B. Tcl</i></a>.)</p><dd><p class="Body"><a name="84314"> </a>At the target-server layer, there are C and Tcl language bindings to the underlying protocol. APIs are available for new back ends supporting additional host-to-target connection methods. These bindings use dynamic link libraries; this makes it unnecessary to build, manage, or maintain alternative configurations of the target server. The target agent also has stable, published run-time and driver interfaces.</p><dd><p class="Body"><a name="84317"> </a>Each of these APIs is discussed in detail in the <i class="title">Tornado API Guide </i>and the online<i class="title"> Tornado API Reference</i>.</p></dl></dl><font face="Helvetica, sans-serif" class="sans"><h4 class="H4"><i><a name="85446">Optional Products</a></i></h4></font><dl class="margin"><dl class="margin"><dd><p class="Body"><a name="85447"> </a>Contact your sales representative for information about optional products from Wind River Systems.</p></dl></dl><font face="Helvetica, sans-serif" class="sans"><h4 class="H4"><i><a name="85449">Third-Party Products</a></i></h4></font><dl class="margin"><dl class="margin"><dd><p class="Body"><a name="85450"> </a>You can further extend the capabilities of your Tornado development system with products designed for Tornado by other companies. Ask your Wind River sales representative for a list of available third-party products.</p></dl></dl><a name="foot"><hr></a><p class="navbar" align="right"><a href="index.html"><img border="0" alt="[Contents]" src="icons/contents.gif"></a><a href="GuideIX.html"><img border="0" alt="[Index]" src="icons/index.gif"></a><a href="c-overview.html"><img border="0" alt="[Top]" src="icons/top.gif"></a><a href="c-overview7.html"><img border="0" alt="[Prev]" src="icons/prev.gif"></a><a href="c-overview9.html"><img border="0" alt="[Next]" src="icons/next.gif"></a></p></body></html><!---by WRS Documentation (), Wind River Systems, Inc. conversion tool: Quadralay WebWorks Publisher 4.0.11 template: CSS Template, Jan 1998 - Jefro --->⌨️ 快捷键说明
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