LockThis.qhelp

<!DOCTYPE qhelp PUBLIC
  "-//Semmle//qhelp//EN"
  "qhelp.dtd">
<qhelp>
<overview>
<p>It is inadvisable to use <code>this</code> in a <code>lock</code> statement,
because other classes could also attempt to lock the object, resulting in inefficiency or
deadlock.</p>

</overview>
<recommendation>
<p>Create a <code>private readonly Object</code>
which is used exclusively for locking. This ensures that no other classes can
use the same lock.

</p></recommendation>
<example>
<p>The following example uses a <code>private readonly</code> 
variable called <code>mutex</code> to use in the <code>lock</code> statement.</p>

<sample src="LockThis.cs" />

</example>
<references>

  <li>MSDN, C# Reference: <a href="http://msdn.microsoft.com/en-gb/library/c5kehkcz.aspx">lock Statement</a>.</li>


</references>
</qhelp>