Registering servers and classes

Implementation definitions:

The Implementation Repository holds ImplementationDef objects The ImplementationDef class defines attributes necessary for the SOMOA to find and activate the implementation of an object. Details of the ImplementationDef object are not currently defined in the CORBA 1.1 specification; the attributes that have been defined are required by DSOM.

Listed below is each available attribute, with its corresponding type in parentheses, followed by a description of its purpose:

impl_id (string)

Contains the DSOM-generated identifier for a server implementation.
impl_alias (string)
Contains the "alias" (user-friendly name) for a server implementation.
impl_program (string)
Contains the name of the program or command file which will be executed when a process for this server is started automatically by somdd. If the full pathname is not specified, the directories specified in the PATH environment variable will be searched for the named program or command file.

Optionally, the server program can be run under control of a "shell" or debugger, by specifying the shell or debugger name first, followed by the name of the server program. (A space separates the two program names.) For example,

                dbx myprogram

will start the program "myprogram" under control of "dbx".

Servers that are started automatically by somdd will always be passed their impl_id as the first parameter, in order to retrieve their ImplementationDef (if desired).

impl_flags (Flags)
Contains a bit-vector of flags used to identify server options (for example, the IMPLDEF_MULTI_THREAD flag indicates multi-threading). See the impldef.idl file for the complete set of valid ImplementationDef flags. Unused flag bits are reserved for future use by IBM.
impl_server_class (string)
Contains the name of the SOMDServer class or subclass created by the server process.
impl_refdata_file (string)
Contains the full pathname of the file used to store ReferenceData for the server.
impl_refdata_bkup (string)
Contains the full pathname of the backup mirror file used to store ReferenceData for the server. This file can be used to restore a copy of the primary file in case it becomes corrupted. (It would be a good idea to keep the primary and backup files in different disk volumes.)
impl_hostname (string)
Contains the hostname of the machine where the server is located.

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