osfmk/man/ledger_read.html

   1 <h2>ledger_read</h2>
<hr>
<p>
<strong>Function</strong> - Return the ledger limit and balance.
<h3>SYNOPSIS</h3>
<pre>
<strong>kern_return_t   ledger_read</strong>
                <strong>(ledger_port_t</strong>                           <var>ledger</var>,
                 <strong>ledger_item_t</strong>                          <var>balance</var>,
                 <strong>ledger_item_t</strong>                          <var>maximum</var><strong>);</strong>
</pre>
<h3>PARAMETERS</h3>
<dl>
<p>
<dt> <var>ledger</var> 
<dd>
[in ledger send right]
The ledger to read
<p>
<dt> <var>balance</var> 
<dd>
[out scalar]
The current usage
<p>
<dt> <var>maximum</var> 
<dd>
[out scalar]
The resource limit
</dl>
<h3>DESCRIPTION</h3>
<p>
The <strong>ledger_read</strong> function returns the current balance
and limit in a ledger.
<h3>NOTES</h3>
<p>
This interface is not implemented in OSF/1 R1.3.
<h3>RETURN VALUES</h3>
<p>
Only generic errors apply.
<h3>RELATED INFORMATION</h3>
<p>
Functions:
<a href="ledger_create.html"><strong>ledger_create</strong></a>,
<a href="ledger_terminate.html"><strong>ledger_terminate</strong></a>,
<a href="ledger_transfer.html"><strong>ledger_transfer</strong></a>.