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version 1.4, 2000/01/13 09:21:34 version 1.6, 2000/01/16 03:15:49
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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 1.5 2000/01/15 06:26:06 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.  Our client communicates with Mathematica by MathLink and
 to an OpenXM server by OpenXM protocols.  The {\tt math2ox} needs  with an OpenXM server by OpenXM protocols.
 {\tt ox} command attached to kan/sm1 to connect an OpenXM server.  By using the module {\tt math2ox},
   we can call OpenXM servers from Mathematica;
   here is an example of a computation of the de Rham cohomology groups
   of ${\bf C}^2 \setminus V(x^3-y^2)$.
   {\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 ]
   \end{verbatim}
   }
   
 \subsubsection{Functions}  \subsubsection{Functions}
   
 The {\tt math2ox} has the following functions functions named  The {\tt math2ox} has the following functions.
 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  For example, {\tt OxPopCMO[]} executes the same operation
 send data on the stack to the stream, then it receives the data from the  as {\tt ox\_pop\_cmo()} in Risa/Asir.
 stream.  By using the {\tt OxParse[]} function, one can send suitable OX messages,
   written by the OX expression, to a server. OX expressions are
 The {\tt OxParse[]} and the {\tt OxGet[]} above are low level functions.  
 By using the {\tt OxParse[]} function, we can send suitable OX messages,  
 which are written as an OX expression, to a server.  OX expressions are  
 Lisp-like expressions for OX messages and are defined  Lisp-like expressions for OX messages and are defined
 in~\cite{noro-takayama}.  The {\tt OxGet[]} receives an OX data message  in~\cite{noro-takayama}.
 and returns its object.  The {\tt OxGet[]} receives an OX data message
   and returns its translation to an local object.
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