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version 1.10, 2000/01/17 01:24:27

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% $OpenXM: OpenXM/doc/issac2000/openxm-clients.tex,v 1.7 2000/01/16 06:39:39 takayama Exp $

% $OpenXM: OpenXM/doc/issac2000/openxm-clients.tex,v 1.9 2000/01/17 00:48:06 takayama Exp $

\section{OpenXM Clients}

Line 28 are provided to execute these primitive operations:

{\tt ox\_push\_cmd()} for sending an {\tt SM} command to a server

and {\tt ox\_get()} for receiving data from a stream.

Some operations including the reset operation are realized by

Some operations including the reset operation are implemented by

combining these primitives. Among them, frequently used ones are

provided as built-in functions. We show several ones.

provided as built-in functions. We show some of them.

\begin{itemize}

\item {\tt ox\_pop\_cmo()}

Line 49 the function. It does not wait the termination of the

After sending {\tt SM\_control\_reset\_connection} to a control server,

it completes the operations stated in Section \ref{control}.

\end{itemize}

Furthermore {\tt ox\_select()} is provided to detect streams ready for

Furthermore {\tt ox\_select()} is provided to detect if streams are ready for

reading. It is realized by the {\tt select()} system call and is used

reading. It is implemented by the {\tt select()} system call and is used

to avoid blocking on read operations.

\subsection{Mathematica}

Line 93 as {\tt ox\_pop\_cmo()} in Risa/Asir;

it pops data from the server stack.

The {\tt OxGet[]} receives an OX data message

and returns its translation to an local object.

By using the {\tt OxParse[]} function, one can send OX messages,

The function {\tt OxParse[]} helps debugging to connect Mathematica

and ox servers.

By using the function, one can send OX messages,

written by the OX expression, to a server.

OX expressions are Lisp-like expressions for OX messages and are defined

in~\cite{noro-takayama}.