<html> <head> <title>Scoped Lock</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <link rel="stylesheet" href="theme/style.css" type="text/css"> </head> <body> <table width="100%" border="0" background="theme/bkd2.gif" cellspacing="2"> <tr> <td width="10"> </td> <td width="85%"> <font size="6" face="Verdana, Arial, Helvetica, sans-serif"><b>Scoped Lock</b></font></td> <td width="112"><a href="http://spirit.sf.net"><img src="theme/spirit.gif" width="112" height="48" align="right" border="0"></a></td> </tr> </table> <br> <table border="0"> <tr> <td width="10"></td> <td width="30"><a href="../index.html"><img src="theme/u_arr.gif" border="0"></a></td> <td width="30"><a href="regular_expression_parser.html"><img src="theme/l_arr.gif" border="0"></a></td> <td width="30"><a href="symbols.html"><img src="theme/r_arr.gif" border="0"></a></td> </tr> </table> <h2>scoped_lock_d</h2> <p>The <tt>scoped_lock_d</tt> directive constructs a parser that locks a mutex during the attempt to match the contained parser.</p> <p>Syntax:</p> <pre> <span class="identifier">scoped_lock_d</span><span class="special">(</span>mutex<span class="special">&)[</span>body-parser<span class="special">]</span></pre> <p>Note, that nesting <tt>scoped_lock_d</tt> directives bears the risk of deadlocks since the order of locking depends on the grammar used and may even depend on the input being parsed. Locking order has to be consistent within an application to ensure deadlock free operation.</p> <p></p> <table border="0"> <tr> <td width="10"></td> <td width="30"><a href="../index.html"><img src="theme/u_arr.gif" border="0"></a></td> <td width="30"><a href="regular_expression_parser.html"><img src="theme/l_arr.gif" border="0"></a></td> <td width="30"><a href="symbols.html"><img src="theme/r_arr.gif" border="0"></a></td> </tr> </table> <br> <hr size="1"> <p class="copyright">Copyright © 2003 Martin Wille<br> <br> <font size="2">Use, modification and distribution is subject to the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)</font></p> <p class="copyright"> </p> </body> </html>