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<p class="hpath"><a href="index.html">Top</a>: <a href="streams.html">Streams</a>: 
infile </p>
<blockquote> 
<pre class="lang">#include <pstreams.h>

class infile: instm {
    infile( [ const string& filename ] );
    void pipe(outfile& peer);
    string get/set_filename(string);
}
</pre>
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<p>This class derives all public methods and properties from <a href="streams.iobase.html">iobase</a> 
and <a href="streams.instm.html">instm</a>, and in addition, defines the following:</p>
<p><span class="def">infile::infile( [ const string& filename ] )</span> creates 
an input file stream, but does not open the file. <span class="lang">Filename</span> 
is optional and can be set later, using <span class="lang">set_filename()</span>.</p>
<p><span class="def">void infile::pipe(outfile& peer)</span> creates a local 
pipe. This function sets up and opens the <span class="lang">infile</span> and 
<span class="lang">outfile</span> objects so that a thread can asynchronously 
pass data to another thread within one process. Note that <span class="lang">pipe()</span> 
opens both streams; subsequent calls to <span class="lang">open()</span>, <span class="lang">close()</span> 
or <span class="lang">cancel()</span> shuts down the pipe. Local pipe is a slower 
alternative to the message queue. The only advantage of local pipes is that they 
provide a standard streaming interface.</p>
<p><span class="def"> string infile::get/set_filename(string)</span> sets the 
file name. <span class="lang">set_filename()</span> closes the stream prior to 
assigning the new value.</p>
<p class="seealso">See also: <a href="streams.iobase.html">iobase</a>, <a href="streams.instm.html">instm</a>, 
<a href="streams.examples.html">Examples</a></p>
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Source at commit 8edbcdac0d39 created 11 years 8 months ago.
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