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<a href="./Home">MLton 20130715</a>
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<h1>MLtonIO</h1>
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<div class="content"><div class="highlight"><pre><span class="k">signature</span><span class="w"> </span><span class="n">MLTON_IO</span><span class="w"> </span><span class="p">=</span><span class="w"></span>
<span class="w"> </span><span class="k">sig</span><span class="w"></span>
<span class="w"> </span><span class="k">type</span><span class="w"> </span><span class="n">instream</span><span class="w"></span>
<span class="w"> </span><span class="k">type</span><span class="w"> </span><span class="n">outstream</span><span class="w"></span>
<span class="w"> </span><span class="k">val</span><span class="w"> </span><span class="n">inFd</span><span class="p">:</span><span class="w"> </span><span class="n">instream</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="n">Posix</span><span class="p">.</span><span class="n">IO</span><span class="p">.</span><span class="n">file_desc</span><span class="w"></span>
<span class="w"> </span><span class="k">val</span><span class="w"> </span><span class="n">mkstemp</span><span class="p">:</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="n">*</span><span class="w"> </span><span class="n">outstream</span><span class="w"></span>
<span class="w"> </span><span class="k">val</span><span class="w"> </span><span class="n">mkstemps</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="n">prefix</span><span class="p">:</span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="n">suffix</span><span class="p">:</span><span class="w"> </span><span class="n">string</span><span class="p">}</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="n">*</span><span class="w"> </span><span class="n">outstream</span><span class="w"></span>
<span class="w"> </span><span class="k">val</span><span class="w"> </span><span class="n">newIn</span><span class="p">:</span><span class="w"> </span><span class="n">Posix</span><span class="p">.</span><span class="n">IO</span><span class="p">.</span><span class="n">file_desc</span><span class="w"> </span><span class="n">*</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="n">instream</span><span class="w"></span>
<span class="w"> </span><span class="k">val</span><span class="w"> </span><span class="n">newOut</span><span class="p">:</span><span class="w"> </span><span class="n">Posix</span><span class="p">.</span><span class="n">IO</span><span class="p">.</span><span class="n">file_desc</span><span class="w"> </span><span class="n">*</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="n">outstream</span><span class="w"></span>
<span class="w"> </span><span class="k">val</span><span class="w"> </span><span class="n">outFd</span><span class="p">:</span><span class="w"> </span><span class="n">outstream</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="n">Posix</span><span class="p">.</span><span class="n">IO</span><span class="p">.</span><span class="n">file_desc</span><span class="w"></span>
<span class="w"> </span><span class="k">val</span><span class="w"> </span><span class="n">tempPrefix</span><span class="p">:</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="p">-></span><span class="w"> </span><span class="n">string</span><span class="w"></span>
<span class="w"> </span><span class="k">end</span><span class="w"></span>
</pre></div></div></div>
<div class="ulist"><ul>
<li>
<p>
<span class="monospaced">inFd ins</span>
</p>
<div class="paragraph"><p>returns the file descriptor corresponding to <span class="monospaced">ins</span>.</p></div>
</li>
<li>
<p>
<span class="monospaced">mkstemp s</span>
</p>
<div class="paragraph"><p>like the C <span class="monospaced">mkstemp</span> function, generates and open a temporary file
with prefix <span class="monospaced">s</span>.</p></div>
</li>
<li>
<p>
<span class="monospaced">mkstemps {prefix, suffix}</span>
</p>
<div class="paragraph"><p>like <span class="monospaced">mkstemp</span>, except it has both a prefix and suffix.</p></div>
</li>
<li>
<p>
<span class="monospaced">newIn (fd, name)</span>
</p>
<div class="paragraph"><p>creates a new instream from file descriptor <span class="monospaced">fd</span>, with <span class="monospaced">name</span> used in
any <span class="monospaced">Io</span> exceptions later raised.</p></div>
</li>
<li>
<p>
<span class="monospaced">newOut (fd, name)</span>
</p>
<div class="paragraph"><p>creates a new outstream from file descriptor <span class="monospaced">fd</span>, with <span class="monospaced">name</span> used in
any <span class="monospaced">Io</span> exceptions later raised.</p></div>
</li>
<li>
<p>
<span class="monospaced">outFd out</span>
</p>
<div class="paragraph"><p>returns the file descriptor corresponding to <span class="monospaced">out</span>.</p></div>
</li>
<li>
<p>
<span class="monospaced">tempPrefix s</span>
</p>
<div class="paragraph"><p>adds a suitable system or user specific prefix (directory) for temp
files.</p></div>
</li>
</ul></div>
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