</h1>
<h2>Status: <code id="statusField">NO-STATUS</code></h2>
<p>
This example shows how you can use standard C library file operation
functions in Native Client using a library called nacl_mounts.
</p>
<p>
nacl_mounts provides a virtual filesystem. The filesystem can be "mounted"
in a given directory tree. When you perform operations on files in those
directories, the mount determines how those operations should be performed.
</p>
<p>
This example has three mounts by default.
<ol>
<li><i>/</i> the root of the filesystem. This is a memory mount, and
is non-persistent.</li>
<li><i>/persistent</i> a persistent storage area. Any data written
here can be read back after Chrome is restarted.</li>
<li><i>/dev</i> a mount containing some utility files. /dev/null,
/dev/zero, etc.</li>
</ol>
</p>
<div>
<span>
<input type="radio" id="radiofopen" name="group" checked="checked">fopen
<input type="radio" id="radiofclose" name="group">fclose
<input type="radio" id="radiofread" name="group">fread
<input type="radio" id="radiofwrite" name="group">fwrite
<input type="radio" id="radiofseek" name="group">fseek
</span>
</div>
<div class="function" id="fopen">
<span>
Filename:
<input type="text" id="fopenFilename">
<select id="fopenMode">
<option value="r">Read Existing (r)</option>
<option value="r+">Read/Write Existing (r+)</option>
<option value="w">Write New File (w)</option>
<option value="w+">Read/Write New File (w+)</option>
<option value="a">Append Write (a)</option>
<option value="w+">Append Read/Write (a+)</option>
</select>
<button id="fopenExecute">fopen</button>
</span>
</div>
<div class="function" id="fclose" hidden>
<span>
<select class="file-handle" id="fcloseHandle"></select>
<button id="fcloseExecute">fclose</button>
</span>
</div>
<div class="function" id="fread" hidden>
<span>
<select class="file-handle" id="freadHandle"></select>
Count:
<input type="text" id="freadBytes">
<button id="freadExecute">fread</button>
</span>
</div>
<div class="function" id="fwrite" hidden>
<span>
<select class="file-handle" id="fwriteHandle"></select>
Data:
<input type="text" id="fwriteData">
<button id="fwriteExecute">fwrite</button>
</span>
</div>
<div class="function" id="fseek" hidden>
<span>
<select class="file-handle" id="fseekHandle"></select>
Offset:
<input type="text" id="fseekOffset">
Whence:
<select id="fseekWhence">
<option value="0">SEEK_SET</option>
<option value="1">SEEK_CUR</option>
<option value="2">SEEK_END</option>
</select>
<button id="fseekExecute">fseek</button>
</span>
</div>
<!-- The NaCl plugin will be embedded inside the element with id "listener".
See common.js.-->
<div id="listener"></div>
<div id="log"></div>
</body>
</html>