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version 1.4, 2000/01/13 09:21:34 version 1.9, 2000/01/17 00:48:06
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 % $OpenXM: OpenXM/doc/issac2000/openxm-clients.tex,v 1.3 2000/01/11 05:17:11 noro Exp $  % $OpenXM: OpenXM/doc/issac2000/openxm-clients.tex,v 1.8 2000/01/16 10:58:19 takayama Exp $
   
 \section{OpenXM Clients}  \section{OpenXM Clients}
 (noryo and Ohara)  
 MEMO: keywords:  
 Asir and Mathematica clients.  
   
 \subsection{Risa/Asir}  \subsection{Risa/Asir}
   
 Risa/Asir provides a launcher to invoke an OpenXM server and to set up the  Risa/Asir provides a launcher to invoke an OpenXM server and to set up the
 communication between the server and itself. It also provides primitives  communication between the server and itself. As a client,
 for communication as built-in functions.  it provides many built-in functions for communication.
   
 \subsubsection{{\tt ox\_launch}}  \subsubsection{Setting up servers}
 {\tt ox\_launch} is a general purpose launcher.  This application  {\tt ox\_launch} is a general purpose launcher.  This application
 invokes a server and initiates the server-client communication  invokes a server and sets up the server-client communication
 according to the protocol stated in Section \ref{launcher}, then  according to the protocol stated in Section \ref{launcher}, then
 itself becomes a control server.  itself becomes a control server.
 Several facilities related to {{\tt ox\_launch}} are provided  Several facilities related to {{\tt ox\_launch}} are provided
Line 23  of functions to execute the port generation, {\tt bind
Line 20  of functions to execute the port generation, {\tt bind
 {\tt connect} and {\tt accept} operations on sockets individually.  {\tt connect} and {\tt accept} operations on sockets individually.
   
 \subsubsection{Manipulating servers}  \subsubsection{Manipulating servers}
   Fundamental operations on OpenXM servers are
 Fundamental operations on OpenXM servers are sending and receiving  exchange of {\tt OX} data and sending of {\tt SM} commands.
 of {\tt OX} data and sending of {\tt OX} commands. The following functions  The following functions
 are provided to execute these primitive operations:  are provided to execute these primitive operations:
 {\tt ox\_push\_cmo()} for pushing data to a server,  {\tt ox\_push\_cmo()} for pushing data to a server,
 {\tt ox\_push\_cmd()} for sending an {\tt SM} command to a server  {\tt ox\_push\_cmd()} for sending an {\tt SM} command to a server
Line 44  it receives the data from the stream.
Line 41  it receives the data from the stream.
 \item {\tt ox\_cmo\_rpc()}  \item {\tt ox\_cmo\_rpc()}
   
 After pushing the name of a function, arguments and the number of the  After pushing the name of a function, arguments and the number of the
 arguments to the stack of a server, it request the server to execute  arguments to the stack of a server, it requests the server to execute
 the function. It does not wait the termination of the function call.  the function. It does not wait the termination of the function call.
   
 \item {\tt ox\_reset()}  \item {\tt ox\_reset()}
Line 59  to avoid blocking on read operations.
Line 56  to avoid blocking on read operations.
 \subsection{Mathematica}  \subsection{Mathematica}
   
 We provide an OpenXM client {\tt math2ox} written as an external module  We provide an OpenXM client {\tt math2ox} written as an external module
 for Mathematica.  Our client communicates to Mathematica by MathLink and  for Mathematica.
 to an OpenXM server by OpenXM protocols.  The {\tt math2ox} needs  The module {\tt math2ox} communicates with Mathematica by MathLink and
 {\tt ox} command attached to kan/sm1 to connect an OpenXM server.  with any OpenXM server by the OpenXM protocol.
   By using the module {\tt math2ox},
   we can call OpenXM servers from Mathematica;
   here is a demonstration of a computation of the de Rham cohomology groups
   of ${\bf C}^2 \setminus V(x^3-y^2)$ from Mathematica.
   {\footnotesize
   \begin{verbatim}
   In[1]:= Install["math2ox"]
   In[2]:= OxStart["../lib/sm1/bin/ox_sm1_forAsir"]
   In[3]:= OxExecute[" [(x^3-y^2) (x,y)] deRham "]
   In[4]:= OxPopString[]
   Out[4]=  [ 1 , 1 , 0 ]  (* The dimension of
                              cohomology groups *)
   \end{verbatim}
   }
   
 \subsubsection{Functions}  The {\tt math2ox} adds the following functions to Mathematica.
   
 The {\tt math2ox} has the following functions functions named  
 like Risa/Asir;  
 \begin{quote}  \begin{quote}
 {\tt OxStart[s\_String]} \\  {\tt OxStart[s\_String]} \\
 {\tt OxStartInsecure[s\_String]} \\  {\tt OxStartInsecure[s\_String]} \\
Line 78  like Risa/Asir;
Line 86  like Risa/Asir;
 {\tt OxClose[]} \\  {\tt OxClose[]} \\
 {\tt OxReset[]}  {\tt OxReset[]}
 \end{quote}  \end{quote}
 For example, the {\tt OxPopCMO[]} function above requests a server to  Although the list of functions speaks itself,
 send data on the stack to the stream, then it receives the data from the  we add some explanations.
 stream.  The function {\tt OxPopCMO[]} executes the same operation
   as {\tt ox\_pop\_cmo()} in Risa/Asir;
 The {\tt OxParse[]} and the {\tt OxGet[]} above are low level functions.  it pops data from the server stack.
 By using the {\tt OxParse[]} function, we can send suitable OX messages,  The {\tt OxGet[]} receives an OX data message
 which are written as an OX expression, to a server.  OX expressions are  and returns its translation to an local object.
 Lisp-like expressions for OX messages and are defined  The function {\tt OxParse[]} helps debugging to connect Mathematica
 in~\cite{noro-takayama}.  The {\tt OxGet[]} receives an OX data message  and ox servers.
 and returns its object.  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}.
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