| version 1.1, 1999/12/23 10:25:08 |
version 1.3, 2000/01/11 05:17:11 |
|
|
| % $OpenXM$ |
% $OpenXM: OpenXM/doc/issac2000/openxm-clients.tex,v 1.2 2000/01/02 07:32:12 takayama Exp $ |
| |
|
| |
\section{OpenXM Clients} |
| |
(noryo and Ohara) |
| |
MEMO: keywords: |
| |
Asir and Mathematica clients. |
| |
|
| |
\subsection{Risa/Asir} |
| |
|
| |
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 |
| |
for communication as built-in functions. |
| |
|
| |
\subsubsection{{\tt ox\_launch}} |
| |
{\tt ox\_launch} is a general purpose launcher. This application |
| |
invokes a server and initiates the server-client communication |
| |
according to the protocol stated in Section \ref{launcher}, then |
| |
itself becomes a control server. |
| |
Several facilities related to {{\tt ox\_launch}} are provided |
| |
as built-in functions of Risa/Asir: a function to invoke a server |
| |
automatically from a give host name and a server name, and a set |
| |
of functions to execute the port generation, {\tt bind}, {\tt listen}, |
| |
{\tt connect} and {\tt accept} operations on sockets individually. |
| |
|
| |
\subsubsection{Manipulating servers} |
| |
|
| |
Fundamental operations on OpenXM servers are sending and receiving |
| |
of {\tt OX} data and sending of {\tt OX} commands. The following functions |
| |
are provided to execute these primitive operations: |
| |
{\tt ox\_push\_cmo()} for pushing data to a server, |
| |
{\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 |
| |
combining these primitives. Among them, frequently used ones are |
| |
provided as built-in functions. We show several ones. |
| |
|
| |
\begin{itemize} |
| |
\item {\tt ox\_pop\_cmo()} |
| |
|
| |
It requests a server to send data on the stack to the stream, then |
| |
it receives the data from the stream. |
| |
|
| |
\item {\tt ox\_cmo\_rpc()} |
| |
|
| |
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 |
| |
the function. It does not wait the termination of the function call. |
| |
|
| |
\item {\tt ox\_reset()} |
| |
|
| |
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 |
| |
reading. It is realized by the {\tt select()} system call and is used |
| |
to avoid blocking on read operations. |
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to openxm-clients.tex CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [local] / OpenXM / doc / issac2000