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<link title="Netsmtp" rel="Chapter" href="Netsmtp.html"><title>Ocamlnet 2 Reference Manual : Netshm_data</title>
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<center><h1>Module <a href="type_Netshm_data.html">Netshm_data</a></h1></center>
<br>
<pre><span class="keyword">module</span> Netshm_data: <code class="code">sig</code> <a href="Netshm_data.html">..</a> <code class="code">end</code></pre>Data representation for shared memory<br>
<hr width="100%">
<br><code><span class="keyword">type</span> <a name="TYPEdata_manager"></a><code class="type">'a</code> data_manager = {</code><table class="typetable">
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code>to_int32_array : <code class="type">'a -> <a href="Netshm.html#TYPEint32_array">Netshm.int32_array</a></code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >Represent the value as an <code class="code">int32_array</code></td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code>of_int32_array : <code class="type"><a href="Netshm.html#TYPEint32_array">Netshm.int32_array</a> list -> 'a</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >Read the value back from its <code class="code">int32_array</code> representation.
The array is given as list of array fragments in reverse
order. The fragments must not be empty.</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code>of_int32_array_prefix : <code class="type">(<a href="Netshm.html#TYPEint32_array">Netshm.int32_array</a> list -> 'a option) option</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >Read the value back from its <code class="code">int32_array</code> representation.
Unlike <code class="code">of_int32_array</code>, it is allowed to pass a prefix
of the whole array to this function. As <code class="code">of_int32_array</code>,
this prefix is given as list of array fragments in reverse
order. The function may return <code class="code">None</code> if it is not yet
possible to reconstruct the value. Otherwise the value is
returned as <code class="code">Some v</code>.</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code>hash_fn : <code class="type">'a -> int32</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" >Hash function</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr></table>
}
<div class="info">
The data manager consists of several manager functions.
<code class="code">of_int32_array_prefix</code> is optional.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALint32_manager"></a>int32_manager : <code class="type">int32 <a href="Netshm_data.html#TYPEdata_manager">data_manager</a></code></pre><div class="info">
Represents an <code class="code">int32</code> as one-element <code class="code">int32_array</code><br>
</div>
<pre><span class="keyword">val</span> <a name="VALint64_manager"></a>int64_manager : <code class="type">int64 <a href="Netshm_data.html#TYPEdata_manager">data_manager</a></code></pre><div class="info">
Represents an <code class="code">int64</code> as two-element <code class="code">int32_array</code><br>
</div>
<pre><span class="keyword">val</span> <a name="VALnativeint_manager"></a>nativeint_manager : <code class="type">nativeint <a href="Netshm_data.html#TYPEdata_manager">data_manager</a></code></pre><div class="info">
Uses either <code class="code">int32_manager</code> or <code class="code">int64_manager</code> to represent <code class="code">nativeint</code>,
depending on the size of <code class="code">nativeint</code>.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALint_manager"></a>int_manager : <code class="type">int <a href="Netshm_data.html#TYPEdata_manager">data_manager</a></code></pre><div class="info">
Uses either <code class="code">int32_manager</code> or <code class="code">int64_manager</code> to represent <code class="code">int</code>,
depending on the size of <code class="code">int</code>.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALint32_array_manager"></a>int32_array_manager : <code class="type"><a href="Netshm.html#TYPEint32_array">Netshm.int32_array</a> <a href="Netshm_data.html#TYPEdata_manager">data_manager</a></code></pre><div class="info">
The identity representation manager<br>
</div>
<pre><span class="keyword">val</span> <a name="VALstring_manager"></a>string_manager : <code class="type">string <a href="Netshm_data.html#TYPEdata_manager">data_manager</a></code></pre><div class="info">
Represents a string in the following way. The first element
is the size of the string. The following elements store the
bytes. The last word is filled up with zero bytes if necessary.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALpair_manager"></a>pair_manager : <code class="type">'a <a href="Netshm_data.html#TYPEdata_manager">data_manager</a> -><br> 'b <a href="Netshm_data.html#TYPEdata_manager">data_manager</a> -> ('a * 'b) <a href="Netshm_data.html#TYPEdata_manager">data_manager</a></code></pre><div class="info">
Creates a compound manager for pairs from two input managers<br>
</div>
<pre><span class="keyword">val</span> <a name="VALleft_pair_manager"></a>left_pair_manager : <code class="type">'a <a href="Netshm_data.html#TYPEdata_manager">data_manager</a> -> 'a <a href="Netshm_data.html#TYPEdata_manager">data_manager</a></code></pre><div class="info">
Uses the same representation as <code class="code">pair_manager</code>, but the resulting
data manager only reads the left value of the pair.
<p>
This data manager does not support <code class="code">to_int32_array</code>.<br>
</div>
<pre><span class="keyword">val</span> <a name="VALoption_manager"></a>option_manager : <code class="type">'a <a href="Netshm_data.html#TYPEdata_manager">data_manager</a> -> 'a option <a href="Netshm_data.html#TYPEdata_manager">data_manager</a></code></pre><div class="info">
Creates a data manager from an input data manager for optional values<br>
</div>
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