Open M [DTM] Version 6.5
Summary of Features

Open M [DTM] and Visual M

• Open M [DTM] for Windows is no longer available as a separate product. This is because Open M [DTM] is no longer available as a combined package with Visual M. You can still use Open M [DTM] as a local server on the same computer with Visual M.

Open M Servers over DTM-NETBIOS

• You can now use Open M NextGen for Windows 95 or Windows NT servers with Open M [DTM] clients through DTM-NETBIOS.

M Language Extensions

• InterSystems has removed the Open M [DTM] reverse order operator (~) in favor of the ANSI M Language Standard function $REVERSE. $REVERSE performs the same function as the reverse order operator.
• InterSystems has added a ZZJOBNAME command. ZZJOBNAME allows a job to sets its own job name from within the job.
• InterSystems has added a ZZUSERNAME command. ZZUSERNAME allows a user process to set its own user name from within the process.
• InterSystems has added a $ZZUSERNAME special variable. $ZZUSERNAME returns the name of the current process.

Common Journal File Format

• InterSystems has developed a common format for journal files and developed a series of utilities that convert journal files between their native format and the new common format. The utilities for Open M [DTM] are:

1. %jconvert -- converts a DTM journal file to a common-format file
2. %jread -- restores from a common-format file.

Network and Communication Enhancements

• Open M [DTM] has implemented improved cpt handling. Duplicate cpt entries. are now purged if they duplicate an entry found in a user-selectable number of prior entries. This greatly reduces the number of changed page table overflows.
• Open M [DTM] now screens out occasional inappropriate Netbios wake-up calls to the DTM server that occur when a client disconnects. A new netlog entry indicates occurrences of this message with the message code: invalid wakeup ignored.
• Open M [DTM] screens out SPX messages with invalid lengths. If the length is not what is expected, Open M [DTM] reports an error in netlog and on the console.

Utility Enhancements

• The %jshadow utility can run successfully from a terminal as well as from a console.
• The %mhaltsys utility now gives all user processes up to 60 seconds to terminate after which it terminates them.
• The %gsave and %gload utilities have been changed to save and recover control characters in globals.

Last Modified: 04:24pm , April 14, 1997