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(Network Sockets and Communication): Cross reference
Ports node on explicit closing.
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@ -2162,6 +2162,10 @@ The ports are initially unbuffered, to make reading and writing to the
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same port more reliable. A buffer can be added to the port using
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@code{setvbuf}; see @ref{Ports and File Descriptors}.
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Most systems have limits on how many files and sockets can be open, so
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it's strongly recommended that socket ports be closed explicitly when
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no longer required (@pxref{Ports}).
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The convention used for ``host'' vs.@: ``network'' addresses is that
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addresses are always held in host order at the Scheme level. The
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procedures in this section automatically convert between host and
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