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<h2 align=center>farm</h2>
<h4 align=center>OS/161 Reference Manual</h4>
<h3>Name</h3>
farm - run some hogs and cats
<h3>Synopsis</h3>
/testbin/farm
<h3>Description</h3>
farm runs three copies of <A HREF=hog.html>hog</A> and one copy of
<A HREF=../bin/cat.html>/bin/cat</A>.
<p>
The cat process reads and prints the file <strong>catfile</strong>,
which you should create in advance.
<h3>Requirements</h3>
farm uses the following system calls:
<ul>
<li> <A HREF=../syscall/fork.html>fork</A>
<li> <A HREF=../syscall/execv.html>execv</A>
<li> <A HREF=../syscall/write.html>write</A>
<li> <A HREF=../syscall/_exit.html>_exit</A>
</ul>
The cat subprocess spawned by farm uses these additional system calls:
<ul>
<li><A HREF=../syscall/open.html>open</A>
<li><A HREF=../syscall/read.html>read</A>
<li><A HREF=../syscall/close.html>close</A>
</ul>
farm is only likely to be useful for testing the scheduler.
<h3>Bugs</h3>
farm does not wait for its child processes to finish.
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