NAME

       amsshell - Asynchronous Message Service (AMS) test message sender (UNIX)

SYNOPSIS

       amsshell unit_name role_name application_name authority_name [{ p | s | q | a }]

DESCRIPTION

       amsshell is a message issuance program designed to test AMS functionality.

       When amsshell is started, it registers as an application module in the unit identified by unit_name of
       the venture identified by application_name and authority_name; the role in which it registers must be
       indicated in role_name.  A configuration server for the local continuum and a registrar for the indicated
       unit of the indicated venture (which may both be instantiated in a single amsd daemon task) must be
       running in order for amsshell to run.

       amsshell runs as two threads: a background thread that receives watches for AMS configuration events
       (including shutdown), together with a foreground thread that acquires operating parameters and message
       content in lines of console input to control the issuance of messages.

       The first character of each line of input from stdin to the amsshell indicates the significance of that
       line:

       =   Sets the name of the subject on which all messages are to be issued, until superseded by another "="
           line.  The subject name must begin at the second character of this line.  Optionally, subject name
           may be followed by a single ' ' (space) character and then the text of the first message to be issued
           on this subject, which is to be issued immediately.

       r   Sets the number of the role constraining the domain of message issuance.  The role number must begin
           at the second character of this line.

       c   Sets the number of the continuum constraining the domain of message issuance.  The continuum number
           must begin at the second character of this line.

       u   Sets the number of the unit constraining the domain of message issuance.  The unit number must begin
           at the second character of this line.

       m   Sets the number of the module to which subsequent messages are to be issued.  The module number must
           begin at the second character of this line.

       .   Terminates amsshell.

       When the first character of a line of input from stdin is none of the above, the entire line is taken to
       be the text of a message that is to be issued immediately, on the previously specified subject, to the
       previously specified module (if applicable), and subject to the previously specified domain (if
       applicable).

       By default, amsshell runs in "publish" mode: when a message is to be issued, it is simply published.
       This behavior can be overridden by providing a fifth command-line argument to amsshell - a "mode"
       indicator.  The supported modes are as follows:

       p   This is "publish" mode.  Every message is published.

       s   This is "send" mode.  Every message is sent privately to the application module identified by the
           specified module, unit, and continuum numbers.

       q   This is "query" mode.  Every message is sent privately to the application module identified by the
           specified module, unit, and continuum numbers, and amsshell then waits for a reply message before
           continuing.

       a   This is "announce" mode.  Every message is announced to all modules in the domain established by the
           previously specified role, unit, and continuum numbers.

EXIT STATUS

       -1  amsshell terminated with an error as noted in the ion.log file.

       "0" amsshell terminated normally.

FILES

       A MIB initialization file with the applicable default name (see amsrc(5)) must be present.

ENVIRONMENT

       No environment variables apply.

DIAGNOSTICS

       amsshell can't register.
           amsshell failed to register, for reasons noted in the ion.log file.

       amsshell can't set event manager.
           amsshell failed to start its background thread, for reasons noted in the ion.log file.

BUGS

       Report bugs to <ion-bugs@korgano.eecs.ohiou.edu>

SEE ALSO

       amslog(1), amsrc(5)