Return to ox-messages.tex CVS log

Up to [local] / OpenXM / doc / ascm2001

Annotation of OpenXM/doc/ascm2001/ox-messages.tex, Revision 1.1

1.1     ! noro        1: %%$OpenXM$
        !             2:
        !             3: \section{OX messages}
        !             4:
        !             5: An OX message for TCP/IP is a byte stream consisting of
        !             6: a header and a body.
        !             7: \begin{center}
        !             8: \begin{tabular}{|c|c|}
        !             9: \hline
        !            10: Header & \hspace{10mm} Body \hspace{10mm} \\
        !            11: \hline
        !            12: \end{tabular}
        !            13: \end{center}
        !            14: The header consists of two signed 32 bit integers.
        !            15: The first one is an OX tag
        !            16: and the second one is a serial number of the OX message.
        !            17: %Negative numbers are expressed by the two's complement.
        !            18: Several byte orders including the network byte order
        !            19: are allowed and the byte order is determined as a part of
        !            20: the establishment of a connection. See Section \ref{secsession} for details.
        !            21:
        !            22: The OX messages are classified into three types:
        !            23: DATA, COMMAND, and SPECIAL.
        !            24: We have currently the following general tags for the OX messages.
        !            25: \begin{verbatim}
        !            26: #define        OX_COMMAND               513  // COMMAND
        !            27: #define        OX_DATA                  514  // DATA
        !            28: #define OX_SYNC_BALL             515  // SPECIAL
        !            29: #define OX_DATA_WITH_LENGTH      521  // DATA
        !            30: #define OX_DATA_OPENMATH_XML     523  // DATA
        !            31: #define OX_DATA_OPENMATH_BINARY  524  // DATA
        !            32: #define OX_DATA_MP               525  // DATA
        !            33: \end{verbatim}
        !            34:
        !            35: A new OX tag may be added.
        !            36: The new tag should be classified into DATA or COMMAND.
        !            37: For example, \verb+ OX_DATA_ASIR_LOCAL_BINARY +  was added recently
        !            38: to send internal serialized objects of Asir via the OpenXM protocol.
        !            39: This is a tag classified to DATA.
        !            40: See the web page of OpenXM to add a new tag \cite{openxm-web}.
        !            41:
        !            42: %An OpenXM client admit that its own command sends some OX messages
        !            43: %sequentially at once.
        !            44: %
        !            45: %For example, the asir command
        !            46: %{\tt ox\_execute\_string(P, "Print[x+y]")} sends an OX data message
        !            47: %{\tt (OX\_DATA, (CMO\_STRING, "Print[x+y]"))} and an OX command message
        !            48: %{\tt (OX\_COMMAND, (SM\_executeStringByLocalParser))} to an OpenXM
        !            49: %server.