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12
13<h1>NANDFreeBlocksAsync</h1>
14
15<h2>C Specification</h2>
16<dl><dd><pre><code>
17#include &lt;revolution/nand.h&gt;
18
19typedef void (*NANDCallback)( s32 result, NANDCommandBlock *block );
20
21s32 NANDFreeBlocksAsync( u32 *bytes, u32 *inodes, NANDCallback cb, NANDCommandBlock *block );
22</code></pre></dd></dl>
23
24<h2>Arguments</h2>
25<p>
26<TABLE border="1" >
27  <tr>
28<TD valign="top" width="120" bgcolor="#ffffe8"><CODE><STRONG><EM>bytes</EM></STRONG></CODE></TD>
29<TD width="520">A pointer to a u32-type variable that stores (in bytes) the file system's available space.</TD>
30  </tr>
31  <tr>
32<TD valign="top" width="120" bgcolor="#ffffe8"><CODE><STRONG><EM>inodes</EM></STRONG></CODE></TD>
33<TD width="520">A pointer to a u32-type variable that stores the number of free inodes in the file system.</TD>
34  </tr>
35  <tr>
36<TD valign="top" width="120" bgcolor="#ffffe8"><CODE><STRONG><EM>cb</EM></STRONG></CODE></TD>
37<TD width="520">Callback function to call when this function completes processing.</TD>
38  </tr>
39  <tr>
40<TD valign="top" width="120" bgcolor="#ffffe8"><CODE><STRONG><EM>block</EM></STRONG></CODE></TD>
41<TD width="520">Command block structure to be passed to the callback function.</TD>
42  </tr>
43</TABLE>
44</p>
45
46
47<h2>Return Values</h2>
48<p>
49Returns <CODE>NAND_RESULT_OK</CODE> when the request begins normally.
50<p>
51<code>NAND_RESULT_OK<br> NAND_RESULT_ALLOC_FAILED<br> NAND_RESULT_BUSY<br> NAND_RESULT_INVALID<br> NAND_RESULT_UNKNOWN<br> NAND_RESULT_FATAL_ERROR<br></code>
52</p>
53</p>
54
55<H2>Description</H2>
56<p>
57Obtains asynchronously the available space (in bytes) and the number of free i-nodes in the file system.<br>However, <font color="ff0000">you cannot use this function to determine whether new files or directories can be created</font> (to protect the free space reserved by the system). To determine whether new files and directories can be created, use <code>NANDCheck[Async]</code> or <code>NANDGetAvailableArea[Async]</code>. <code>NAND_RESULT_BUSY</code> is returned and this function call is denied when the queue for accepting requests inside the library is full.
58</p>
59
60<h2>See Also</h2>
61<p>
62<code><a href="./NANDFreeBlocks.html">NANDFreeBlocks</a></code>, <code><a href="./NANDCheck.html">NANDCheck</a></code>, <code><a href="./NANDCheckAsync.html">NANDCheckAsync</a></code>, <code><a href="./NANDGetAvailableArea.html">NANDGetAvailableArea</a></code>, <code><a href="./NANDGetAvailableAreaAsync.html">NANDGetAvailableAreaAsync</a></code>
63</p>
64
65<H2>Revision History</H2>
66<p>
672006/10/25 Expanded statement to include NANDGetAvailableArea[Async]. Added links to See Also.<br>2006/08/30 Added caution regarding the creation of new files and directories.<BR>2006/06/16 Initial version. <BR>
68</p>
69
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71<P>CONFIDENTIAL</p>
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