| 1 | <html> |
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| 2 | <head> |
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| 3 | <title>Scoped Lock</title> |
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| 4 | <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> |
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| 5 | <link rel="stylesheet" href="theme/style.css" type="text/css"> |
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| 6 | </head> |
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| 7 | |
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| 8 | <body> |
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| 9 | <table width="100%" border="0" background="theme/bkd2.gif" cellspacing="2"> |
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| 10 | <tr> |
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| 11 | <td width="10"> |
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| 12 | </td> |
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| 13 | <td width="85%"> <font size="6" face="Verdana, Arial, Helvetica, sans-serif"><b>Scoped |
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| 14 | Lock</b></font></td> |
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| 15 | <td width="112"><a href="http://spirit.sf.net"><img src="theme/spirit.gif" width="112" height="48" align="right" border="0"></a></td> |
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| 16 | </tr> |
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| 17 | </table> |
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| 18 | <br> |
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| 19 | <table border="0"> |
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| 20 | <tr> |
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| 21 | <td width="10"></td> |
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| 22 | <td width="30"><a href="../index.html"><img src="theme/u_arr.gif" border="0"></a></td> |
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| 23 | <td width="30"><a href="regular_expression_parser.html"><img src="theme/l_arr.gif" border="0"></a></td> |
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| 24 | <td width="30"><a href="distinct.html"><img src="theme/r_arr.gif" border="0"></a></td> |
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| 25 | </tr> |
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| 26 | </table> |
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| 27 | <h2>scoped_lock_d</h2> |
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| 28 | <p>The <tt>scoped_lock_d</tt> directive constructs a parser that locks a mutex |
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| 29 | during the attempt to match the contained parser.</p> |
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| 30 | <p>Syntax:</p> |
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| 31 | <pre> <span class="identifier">scoped_lock_d</span><span class="special">(</span>mutex<span class="special">&)[</span>body-parser<span class="special">]</span></pre> |
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| 32 | <p>Note, that nesting <tt>scoped_lock_d</tt> directives bears the risk of deadlocks |
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| 33 | since the order of locking depends on the grammar used and may even depend on |
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| 34 | the input being parsed. Locking order has to be consistent within an application |
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| 35 | to ensure deadlock free operation.</p> |
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| 36 | <p></p> |
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| 37 | <table border="0"> |
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| 38 | <tr> |
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| 39 | <td width="10"></td> |
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| 40 | <td width="30"><a href="../index.html"><img src="theme/u_arr.gif" border="0"></a></td> |
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| 41 | <td width="30"><a href="regular_expression_parser.html"><img src="theme/l_arr.gif" border="0"></a></td> |
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| 42 | <td width="30"><a href="distinct.html"><img src="theme/r_arr.gif" border="0"></a></td> |
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| 43 | </tr> |
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| 44 | </table> |
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| 45 | <br> |
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| 46 | <hr size="1"> |
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| 47 | <p class="copyright">Copyright © 2003 Martin Wille<br> |
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| 48 | <br> |
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| 49 | <font size="2">Use, modification and distribution is subject to the Boost Software |
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| 50 | License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 51 | http://www.boost.org/LICENSE_1_0.txt)</font></p> |
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| 52 | <p class="copyright"> </p> |
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| 53 | </body> |
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| 54 | </html> |
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