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|
PLANNED MAJOR CHANGES "SOMETIME IN THE FUTURE" (i.e., exact beta not known)
===========================================================================
. Enhance Execution Manager and Domain Application Manager to make calls
on the Target Manager to get resource information.
. Enhance Node Manager to integrate resource monitoring capacity within
individual Nodes.
. Add assembly-wide component activation/deactivation feature.
- This should allow system deployers to specify the dependencies
among component instances within the assembly.
- Add support in DAnCE so DAnCE could enforce the order in which
components are to be activated within the assembly.
. Add AMI support in DAnCE toolchain to when the DomainApplicationManager
contacts node-level managers to deploy components, all the node-level
managers could performe the deployment concurrently.
. Integrate RT-CORBA 1.2 dynamic scheduling feature into CIAO, which
will allow the application developers to use dynamica scheduling
through meta-programming model.
. Enhance DAnCE to support OpenCCM components.
. Target Manager implementation.
. Implement Resource Allocation and Control Engine (RACE), which is a
component middleware framework built atop of CIAO/DAnCE that integrates
multiple resource allocation/control algorithms for (re)deploying and
(re)configuring component applications. RACE enables (1) system
developers to configure algorithms depending on the characteristics of
applications and operating environment, and (2) swapping in and swapping
out multiple algorithms to make different resource allocation and control
decisions, without handcrafting the mechanisms needed to (1) configure
the algorithms and (2) deploy the decisions made by the algorithms.
. Implement support for more complex type initialization with XML.
. (Remedy) support for using CIAO with VxWorks as target
. Decouple dependencies to NodeApplication from other DAnCE tools.
These dependencies were added to support static configurator. We
need to have these tools in both conventional version and static
configuration version.
. Support tool-specific debug levels and added CIAO_DEBUG macros to
simplify adding debug printouts based on various tool-specific debug
levels.
. RepositoryManager:
- implement the missing rest of the fuctions to support type-based queries
and retrievals
- fully integrate with the DAnCE toolchain
- stress-testing
PLANNED MAJOR CHANGES FOR THE NEXT RELEASE
==========================================
. Adding support to manage multiple interconnected assemblies, which will
involve the work through ExternalReferenceEndPoint idea.
. Seamless integration of swapping into the main line programming model,
so that DAnCE can actually kickstart swapping.
. Integrate TargetManager into the DAnCE toolchain.
. Integrate RepositoryManager into the DAnCE toolchain.
. Integrate various Pub/Sub services into CIAO and DAnCE.
. Move new_RepositoryManager to RepositoryManager
USER VISIBLE CHANGES BETWEEN CIAO-0.4.8 and CIAO-0.4.9
======================================================
. RTTI enabled versions of the Xerces library are no longer needed on
Windows platforms.
. The CIDLC compiler now supports basic preprocessor directives:
#ifdef, #ifndef, #else, and #endif as well as the -D command-
line option.
. The CIDLC compiler now supports incomplete struct and union
semantics which will appear in CORBA 3.1.
. DAnCE now supports dynamically adding/removing components
to/from the existing running assembly without shutting down the
running appliation. This will allow the application developers to
evolve their applications on the fly without incuring service down
time. The service is called ReDaC (Redeployment and Reconfiguration)
Basically ReDAC provides a whole range of redeployment and
reconfiguration granularity level, including:
1) Install/remove component instances of the existing component types.
2) Install/remove component instances of a different type, i.e., a
totally new type of component.
3) Install/remove component instances from an existing container.
4) Install new component instances into a dynamically created brand
new container.
Move around existing components from one existing container to
another existing/new container.
5) Install new component instances into another component server in
the same physical node.
6) Install new component instances into another component server
into a remote host.
To see how to use this feature, please see the ReDaC-Usage.html
under the $CIAO_ROOT/examples/Hello/ directory.
USER VISIBLE CHANGES BETWEEN CIAO-0.4.7 and CIAO-0.4.8
======================================================
. The deprecated RepositoryManager implementation, under
DAnCE/RepositoryManager, has been removed from this release. Please
use the Plan_Launcher and flattened deployment plans to deploy
component assemblies.
. The CIDL compiler frontend now supports constants, const expressions,
bounded strings, bounded sequences, and arrays.
. The CIDL compiler frontend now supports automatic indentation of
function arguments (both "new line" and "same line" styles are
supported).
. Added backend CIDL compiler support for constants, arrays, bounded
strings, bounded sequences, and attribute exceptions, corresponding
to frontend support added by Boris Kolpackov <boris@kolpackov.net>.
. Updated documentation to include instructions for building
the CIDL compiler using MakeProjectCreator (MPC).
. Fixed a bug in the CIDL compiler's determination if an IDL
type is of fixed or variable size type, when it is declared
in the scope of an interface, valuetype or home.
. Changes to generate servant code to support component
swapping.
. Added capability to pass a base class event consumer to a
subscribe() operation generated for a derived event type.
. Added support for .cdl file extension, which was belatedly
standardized by the OMG.
. Added documentation on using Rational Purify with CIAO and
DAnCE.
. Added tests and documentation for the IDL3-to-IDL2 converter tool.
. RepositoryManager:
- enhanced the implementation to use various optimization techniques
- added HTTP support
- added PackageConfiguration visitor to update the locations of the
implementation artifacts with relevant HTTP URLs
- refactored some of the code and added a number of helpers functions
. The XSC based config handlers have been heavily optimized, resulting
in greatly reduced parsing overhead for large deployments.
. The DAnCE toolchain now supports initializing attributes which have
enumerated types. Support for other complex types is planned for the
future. Please see examples/Hello/descriptors/
flattened_deploymentplan_without_ns.cdp for an example of how to
populate enumerated attributes.
. Integrated Real-time QoS support into the DAnCE-based runtime and
deployment tools based on the new OMG Deployment and Configuration
(D&C) specification. Such effort allows application developers to
use real-time CORBA 1.0 features within their CCM appliation through
meta-programming (via XML metadata through DAnCE toolchain). The old
run-time and deployment tools based on original Packaging and Deployment
section of the CCM specification have been completely removed. This
work includes extensions to D&C schema, schema parsers, container and
NodeApplication.
. Added functionality in XML parsing code to resolve schema in
$CIAO_ROOT/docs/schema instead of the local directory only. All
DeploymentPlans should use Deployment.xsd instead of
Modified_Deployment.xsd, which has been removed.
. Fixed bug in CIDL code generation for some types of component and
home attributes.
. Packaging and Deployment (P&D) tools have been completely removed
from this release. DAnCE is now the only supported method of
deploying components.
. The CIAO directory structure has changed in support of the previous
item. The following important directory moves have been made:
* $CIAO_ROOT/DAnCE/ciao => $CIAO_ROOT/ciao
* $CIAO_ROOT/DAnCE/examples => $CIAO_ROOT/examples
* $CIAO_ROOT/DAnCE/Config_Handlers => $CIAO_ROOT/tools/Config_Handlers
* Various obsolete examples/tutorials/tests have been removed.
. Error reporting during component deployment has been greatly
improved. While debugging using CIAO_DEBUG_LEVEL is still
available, detailed error messages are now generated and propagated
to the Plan_Launcher using exceptions.
. generate_component_mpc.pl has been updated to generate MPC files
useful by the modern CIAO infrastructure. This script now also
automatically generates export files.
. DAnCE has been enhanced to support deploying multiple assemblies
with the same set of ExecutionManager and NodeMangers.
USER VISIBLE CHANGES BETWEEN CIAO-0.4.6 and CIAO-0.4.7
======================================================
. Added a component packaging tool to DAnCE. This tool will allow
component packagers to create from deployment plan archived
packages that wrap up all relevant component properties,
descriptors and implementation artifacts.The component packages
generated from this tool will be distributed to Repository
Manager.
. Enhanced DAnCE to allow more than one NodeApplicationManagers within
a NodeManager.
. Enhanced DAnCE to support configurable output of debugging information.
Support for debugging information will be added at the level of both the
DAnCE/CIAO infrastructure as well as individual component instances.
Support for tracing of the DAnCE/CIAO infrastructure will also be added.
Together, these efforts will help developers to understand the execution of
their component-based applications, as well as allowing customization of
the amount of debugging information logged
. Added binding component to the Naming Service. A system deployer
could configure this through XML-based flattened deployment plan
descriptor.
See $CIAO_ROOT/DAnCE/examples/Hello/descriptors/flattened_deploymentplan.cdp
for details. Currently DAnCE only provides resolving naming service
reference through multicast, so be sure to initialize the naming service
with multicast port.
. Added the first cut of the RepositoryManager implementation.
. Changed scoping of code generated by the CIDL compiler to accommodate
cases where the composition declaration is enclosed in one or more
IDL modules, and/or when the composition declaration is in a different
scope than the associated component IDL declarations.
USER VISIBLE CHANGES BETWEEN CIAO-0.4.5 and CIAO-0.4.6
======================================================
. Added support for handle component activation/passivation in D&C
assemblies.
. Added a test for the tool that converts IDL3 into equivalent IDL2.
. Fixed CIDL compiler bug in code generation for sequence type
attributes of components.
. Added more examples for CIAO, including a new Quoter example that is
similar to the one in TAO, as well as GUI-based example.
. Added support for handle component activation/passivation in D&C
assemblies.
. Added support for deactivating facets/event consumers when component
is getting deactivated.
. Added support for destroying the component executors, when the
component is getting deactivated.
USER VISIBLE CHANGES BETWEEN CIAO-0.4.4 and CIAO-0.4.5
======================================================
. Split the previous NodeApplication interface into NodeApplication
and Container interfaces to allow multi-container NodeApplication
support. This will be particularly useful to provide an optimized
CIAO container support for RT-CORBA features.
. Enhanced CIAO to handle dynamic replacement of components. Please
see an example in $CIAO_ROOT/DAnCE/examples/Swapping
. The Config Handlers have been modified to use XML parsing code
generated by the XML Schema Compiler (XSC). Binary releases of XSC can
currently be found at (http://www.dre.vanderbilt.edu/~boris/xsc), and a
recent snapshot of the CVS repository can be found at
(http://www.dre.vanderbilt.edu/~wotte/xsc.tbz2).
Please direct all XSC inquiries/bug reports to wotte at
dre.vanderbilt.edu
. Supported initializing attribute values on Component through XML
tags. Please refer to the $CIAO_ROOT/DAnCE/examples/Hello for
details, particularly the Hello.cid descriptor file.
. Supported parsing component instance names and using them to generate
unique component port references, so that multiple instances of the
same component can be deployed in a single container and the client
requests could be properly designated to the appropriate ports.
. Enhance CIAO to support establishing connections between derived
type ports and base type ports. For example, application deployer
could set up event connections between base event sink port type and
derived event source port type.
. Enhanced the existing set of DAnCE tools to support flattened
Deployment Plan based deployment. Please refer an example in
$CIAO_ROOT/DAnCE/examples/BasicSP/flattened_deploymentplan.cdp
to see how the flattened deployment plan descriptor is used to
deploy the BasicSP example.
. Develop regression/performance tests (similar to TAO
regression/performance tests) that will test/evaluate the
performance of various features of CIAO.
. Added regression test script to the nightly build for DAnCE example.
This will make sure DAnCE tools could be ready to use out of
box in various platforms.
. Improved documentation pages in various places.
. Some bug fixes.
. Added support for reception of eventtypes of a more derived type than
the type of the event sink. Subscription will succeed if the passed
event consumer is associated with an eventtype that is an ancestor of
the published eventtype.
USER VISIBLE CHANGES BETWEEN CIAO-0.4.3 and CIAO-0.4.4
======================================================
. Minor bugfixes.
USER VISIBLE CHANGES BETWEEN CIAO-0.4.2 and CIAO-0.4.3
======================================================
. CIDLC can generate empty executor implementations for a given
composition, which makes it easier to write executors. This can be
trigerred by passing --gen-exec-impl option while invoking CIDLC.
. Generated container code has been refactored into base classes,
thereby reducing the amount of code generated by CIDLC.
. A new tool for generating equivalent IDL2 declarations from IDL3
declarations has been added.
. Fixed a problem with DAnCE that prevented ports from getting activated
properly.
. Added support for eventtype factories within CIDLC.
. DAncE compiles clean and works with VC6 and Borland compilers.
. Fixed compile errors and memory related errors on many platforms.
USER VISIBLE CHANGES BETWEEN CIAO-0.4.1 and CIAO-0.4.2
======================================================
. Overall
- Support for g++ 3.4.1.
- Support added for latest HP aCC compiler.
. CCM Deployment and Configuration specification has largely been
implemented. The implementation is called "DAnCE", the Deployment
and Configuration Engine. For more information about DAnCE, and a
list of supported features, please refer to
$CIAO_ROOT/docs/releasenotes/dance.html.
. CIDL compiler
. Added missing generation of servant code for operations and
attributes of ancestors of interfaces supported and used as ports.
. Added missing generation of factory operation(s) from inherited
home(s).
. Added support for "uses multiple" in generated code.
. Fixed bugs in generation of inherited: [Bug 1800]
home operations
attribute operations
port operations
home factory operations
supported operations
. Added automatic registration of value factories for event
consumers.
. Added support for emits-related navigation.
. Fixed bug with multiple facets that provide the same interface.
. Implemented get_all_facets() and get_all_consumers() navigation
methods.
USER VISIBLE CHANGES BETWEEN CIAO-0.4 and CIAO-0.4.1
====================================================
CIAO
----
. Added support for statically configuring an assembly. Please see
$CIAO_ROOT/docs/static_toc_ciao.html for details.
CIDL:
-----
. Fixed incorrect generation of ACE environment macros in servant glue
code operations.
. Fixed incorrect code generation in the body of a servant operation
that delegates to the executor class.
. Added support for attributes in facets and supported
interfaces.
. Fixed bug in code servant glue code generation when there are
multiple nested modules in the IDL and/or CIDL files.
. Added missing code generation of enum type names.
. Fixed a bug in the generation of the scoped name of a local variable
which is a _var of an executor interface for a facet. These types
are required by the CCM spec to be generated in the same scope as
the interface that underlies the facet.
. Fixed a bug in the generation of *S.h file includes corresponding to
IDL files included in the CIDL file.
. Added ACE style Makefiles.
. Added support for bounded strings
MPC
===
. Removed all of the project type specific and unnecessary keywords.
. Changed the defaulting rules for idl files (generated source files
will be automatically added even if idl files are explicitly
listed).
. The makefiles generated by the gnuace type are now named GNUmakefile
instead of Makefile.
. The IDL_Files section is no longer a built-in MPC type. It is a
custom build type defined in taoidldefaults.mpb.
. Added support for Borland Makefiles that aren't tied to ACE_wrappers
(the bmake project type).
. Added wild-cards to the default.rel file. Now, environment
variables that end in _ROOT are automatically considered as if they
were used with the -relative option.
. Added an environment variable,
MPC_DEPENDENCY_COMBINED_STATIC_LIBRARY, to force MPC to put
inter-project dependencies in static vc6 and vc71 workspaces.
. Added an html project type (originally by Justin Michel) to aid in
the debugging of mpc files.
. Added a new keyword, pure_libs, that is put into a project
unmodified (unlike the libs and lit_libs keywords).
. The behavior obtained through the use of the -hierarchy option is
now the default for all "make" based project types. This includes
borland, bmake, gnuace, make and nmake.
. Added support for referencing workspace files (.mwc) from within
other workspaces.
. Added an option, -genins, that causes MPC to generate .ins files
that can be used with prj_install.pl. This will help users install
portions of their projects into alternate directories.
. Modified the gnuace workspace output to be based on directory
recursion instead of having inter-project dependencies built into
each workspace level GNUmakefile.
. Added a new keyword, dependent, for use within a Define_Custom that
causes MPC to add a dependency to generated files upon the custom
command.
. Assignments within a 'specific' section that are not recognized MPC
keywords are assumed to be template value overrides (similar to
using the -value_template option).
. Partial support for Visual SlickEdit has been added.
. Various bug fixes and optimizations have been added as well.
USER VISIBLE CHANGES BETWEEN CIAO-0.3.6 and CIAO-0.4
====================================================
. Added Makefiles to build the ciao and tools subdirs by default.
. The suport for the following IDL features have been added to the
CIDL since the last beta
- exception (exception declaration and raises() specification)
- valuetype
- enum
- const declaration
- const expression and literals
- native
- home finder
- oneway operation
- readonly attribute
- type declaration inside interfaces, valuetypes
- union
CIDL doesn't yet support the following features
- Complete error detection and recovery
- Attribute exception specification
- Array
- Bounded sequence
- Fixed type
- Floating-point and Fixed-point constant expressions & literal.
though we plan to add this support over the next several months,
depending on user/sponsor needs.
|