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Enhanced C/C++ support
With this release, CICS Transaction
Server introduces new support for
C/C++, which brings the performance
of these applications to a level
comparable with that obtained
with COBOL, PL/I or Assembler
applications. This performance level
is provided by the extra performance
linkage (XPLink) feature of z/OS, which
delivers high-performance, subroutine
linkage mechanisms and guard pages
to support stack extension, resulting
in highly optimized execution path
lengths. Performance is also increased
by running these applications in the
CICS OTE, instead of in the QR TCB
described previously.
The applications use standard
Language Environment services
and CICS storage management. This
requires that the applications be written
to threadsafe standards. Maximum
performance can be achieved only if
the applications are limited to the use
of threadsafe CICS commands. The
support provided is for AMODE(31)
C/C++ programs. XPLink support
under CICS enables you to exploit
the latest compiler and optimization
technologies included with C/C++. In
particular, XPLink DLLs used outside
CICS can now be used inside CICS
as well, enabling greater C/C++
code reusability.
CICS Transaction Server, Version 3.1
also includes enhancements to
provide effective management of
large run-time configurations through
modern user interfaces, helping
you meet demanding service-level
objectives.
CICSPlex System Manager
WUI enhancements
The IBM CICSPlex
®
System Manager
WUI already provides simple, flexible,
intuitive and comprehensive functions
for managing CICS Transaction Server
—including important functions not
available with the Time Sharing Option
(TSO) end-user interface. CICS
Transaction Server, Version 3.1
introduces a greater range of
improvements to the WUI that delivers
significant user benefits.
• Improvements to screen design
maximize the use of screen space in
views and menus. The view editor now
allows detailed views to be displayed
in a two-column format. Users can
choose to create their own detail views
in two columns. The SELECT ALL
and DESELECT ALL buttons have
also been replaced in tabular views by
icons in the record heading of the table
to reduce white space. And filters on
tabular views can now be collapsed,
so that more screen space is available
to display data.
• User favorites can now be managed
using a favorites editor that includes
tabular views. These features enable
favorites to be easily saved and
retrieved for editing at a later time.
• User-group profiles containing
information, such as default context,
scope, CICSPlex Managed Address
Space (CMAS) context and result-
set warning count, can now be set by
administrators using a profile editor.
This allows them to configure the WUI
so that it is tailored to the needs of
particular groups of users.
• Result-set warning counts can be set
to issue a warning before a view is
opened that would generate a large
number of records. This allows a filter
to be altered on the view to reduce the
number of records returned, helping to
avoid unnecessary waits.
• The view editor now allows the user,
when creating or updating views, to
include a filter confirmation panel
before a view is opened. This means
that, when navigating to a view,
the user is prompted to enter filters.
Business Application Services (BAS)
administration views (introduced in
CICS Transaction Server, Version 2.3)
have been restructured to improve
their usability by dividing them
into two groups: basic BAS (which
emulates resource definition online
[RDO] function), and advanced BAS
(which exploits the advanced features
of CICSPlex System Manager).