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+PLANNED MAJOR CHANGES "SOMETIME IN THE FUTURE" (i.e., exact beta not known)
+===========================================================================
+
+. (JTC) provide example Telecom Log Service Persistance Strategies that
+ use BerkeleyDB, ODBC, etc. Refine Strategy interface as required.
+
+. (JTC) autoconf support for tests and examples subdirectories.
+
+PLANNED CHANGES FOR "TAO-5.5.6"
+===============================
+
+. (OO) Coverity error fixes for TAO.
+. (OO) Remove exception specifications from ORB mediated operations (C++
+ mapping requirement).
+. (OO) Various other fixes that have been piling up.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.5.4 and TAO-1.5.5
+====================================================
+
+. Added an IDL compiler option to generate an explicit instantiation
+ and export of template base classes generated for IDL sequences,
+ sometimes necessary as a workaround for a Visual Studio compiler bug
+ (Bugzilla 2703).
+
+. Beefed up error checking in the IDL compiler when processing
+ #pragma version directives.
+
+. Modified IDL compiler's handling of a syntax error to eliminate
+ the chance of a crash (Bugzilla 2688).
+
+. Fixed a bug in code generation for a valuetype when it inherits
+ an anonymous sequence member from a valuetype in another IDL file.
+
+. Extended tests in tests/IDL_Test to cover generated code for
+ tie classes.
+
+. Modified tao_idl to emit code to set the exception data in the
+ Messaging::ExceptionHolder in the AMI _excep operation. This has the
+ effect of allowing user defined exceptions to be recognized when
+ raising an exception without collocation. This fixes Bug 2350.
+
+. Added hooks to enable custom Object to IOR conversion or allowing local
+ objects (such as Smart Proxies) to be converted to an IOR string.
+
+. Removed warning issued when using corbaloc with a default object key.
+
+. Added implementation of Dynamic Any methods insert_*_seq() and
+ get_*_seq() (spec-defined for sequences of IDL basic types),
+ as well as implementation of insert and get methods for abstract
+ interfaces.
+
+. Added support for CORBA/e compact
+
+. Added support for CORBA/e micro
+
+. Fixed issues relating to the CosTrading Server library. The constraint
+ language lexer now allow negative floating point values, 64-bit signed and
+ unsigned integers (which can currently be represented as octal or decimal).
+ Also, fixed a bug where negative integers were being stored and compared as
+ unsigned integers which resulted in -3 > 0 evaluating to true.
+
+. Added Compression module that delivers the infrastructure
+ classes with which data can be compressed. This can be used
+ by regular applications but then also by the ORB in the future.
+
+. Removed support for -Ge 0 and -Ge 1 from the IDL compiler. In practice
+ this means that the IDL compiler doesn't generate any environment macros
+ anymore.
+
+. Fixed a problem where TAO mistakenly considered ALL messages
+ with zero-length payload to be errors and was thus not properly
+ parsing and handling the GIOP CloseConnection message. This is
+ tested via Bug_2702_Regression.
+
+. Added an optimization to servant activation to eliminate calls to
+ check_bounds() on the object key sequence. This has been observed
+ to yield a 30% decrease in activation time for debug builds on VC71
+ and linux gcc.
+
+. Merged in changes from OCI's distribution which originate from
+ OCI request tickets [RT 8449] and [RT 8881]. In their totality,
+ these changes add a feature whereby the notification service
+ implementation can utilize a separate ORB for dispatching events to
+ consumers.
+
+. Contributed the Transport::Current support - an optional
+ feature with IDL interfaces, which enables users to obtain
+ information about the Transports used to send or receive a
+ message. The basic intent is to provide (typically) a
+ read-only interface to obtaining data like the number of bytes
+ transferred or the number of messages sent and received.
+ Since specific Transports may have very different
+ characteristics, a simple generic implementation for
+ Transport::Current is insufficient. This implementation also
+ provides support for specific Transport implementations. See
+ the TC_IIOP implementation, which is an IIOP-specific
+ Transport::Current, which extends the generic interface with
+ operations providing information about IIOP endpoints, like
+ host and port. To build TAO with support for this feature, a
+ macro named TAO_HAS_TRANSPORT_CURRENT must be defined and have
+ a value != 0. For more details of how the feature is intended
+ to be used, see docs/transport_current/index.html
+
+USER VISIBLE CHANGES BETWEEN TAO-1.5.3 and TAO-1.5.4
+====================================================
+
+. Added support for ACE_Dev_Poll_Reactor to Advanced_Resource_Factory.
+
+. Improved tao_idl performance, particularly over networked
+ filesystems.
+
+. Added new option for the RTEC, -ECDispatchingThreadsFlags, that
+ allows the user to pass in a list of thread creation flags and
+ priority for dispatching threads. These can be used for either the
+ MT dispatching strategy or the TPC dispatching strategy. See
+ docs/ec_options.html for usage information.
+
+ Also added -ECDebug option to enable debugging output from the RTEC.
+ Only the option and variable was added, but no messages. Therefore,
+ at the moment, this does not generate much output.
+
+. Resolved Bugzilla #2651 to eliminate incompatibility with the new
+ mechanism, allowing per-ORB configurations.
+
+. Fixed Bugzilla #2686, which involved correctly managing memory during
+ exceptional situations. Throwing an exception during the creation of the
+ Root POA would cause a leak of a TAO_Adapter and POA manager related
+ objects.
+
+. Fixed Bugzilla #2699, by uninlining generated code for the
+ TIE template classes. Inlining of virtual functions in this
+ code was causing problems with RTTI on some compilers. As a side
+ result, the idl compiler doesn't generate a S_T.inl file anymore.
+
+. Fixed a bug where calling _set_policy_overrides() on a collocated servant
+ would return an unusable object reference.
+
+. Addressed a number of Coverity errors (CHECKED_RETURN, DEADCODE, LOCK,
+ USE_AFTER_FREE, RESOURCE_LEAK, FORWARD_NULL). In particular, missing
+ return value checks and unreachable code in the ACE CDR stream
+ implementation were addressed. Memory and resource management in the ACE
+ Configuration classes was corrected. A potential deadlock upon error was
+ fixed in ACE_OS::rw_unlock(). Missing return value checks were addressed
+ in ACE_OS::open() on Windows and ACE_Thread_Manager::wait(). A potential
+ dereference of a null pointer in ACE_OS::scandir_emulation() was
+ corrected. Lastly, the ACE_UUID::lock() accessor interface and
+ implementation was cleaned up so that it would not return a lock whose
+ memory had been freed.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.5.2 and TAO-1.5.3
+====================================================
+
+. Added new options, -CECConsumerOperationTimeout and
+ -CECSupplierOperationTimeout, to the CosEvent service. See Bugzilla #2594
+ and $TAO_ROOT/docs/cec_options.html for details. The purpose of these
+ options is to use the relative round-trip timeout feature from the TAO
+ Messaging library to detect clients that are "hung" in push() or pull()
+ operations but would otherwise not be detetcted as "bad" by the
+ -CECReactive*Control options (since they have a thread available in
+ orb->run()).
+
+. The Tk/Fl/Qt/Xt resource factories have been moved to subdirectories
+ to make maintenance easier. If you are using these you have to update
+ your include paths.
+
+. Fixed a compatibility problem between TAO and ORBs using Valuetype ID
+ indirection, such as JacORB. This problem was inadvertently introduced
+ in 1.5.2.
+
+. Oneway requests when using SYNC_NONE, SYNC_DELAYED_BUFFERING, or
+ SYNC_EAGER_BUFFERING will be queued until the connection is completed.
+ Connection completion occurs when one of the following occurs:
+ a) A one-way request that does NOT use one of the sync-scopes mentioned
+ above is sent via the same transport
+ b) A two-way request is sent via the same transport
+ c) orb->run() is called
+ Applications that do not currently do one of the above will no longer
+ establish a connection and therefore no data will be sent.
+
+. Fixed a problem with location forward objects being raised by colocal
+ ServerInterceptors. This problem did not occure interacting with remote
+ servers. Now the raised object-reference will take effect on the object
+ reference being held by client.
+
+. Fixed a problem with properly shutting down socket connections by
+ explicitly calling release_os_resources from the destructor of protocol
+ specific connection handlers. Maintainers of third-party (non-DOC)
+ pluggable protocols must verify they are releasing any resources they
+ acquired. The base Connection_Handler destructor can't do it for them.
+
+. Added COIOP as pluggable protocol. This stands for Collocated Only IOP
+ and it only allows collocated calls. Can be used for embedded systems that
+ do use corba but don't make any remote calls.
+
+. Notication service works with Microsoft Visual C++ 8.
+
+. Fixed Bugzilla #2582, related to IDL compiler generation of arg traits
+ template specialization for typedefs.
+
+. Fixed Bugzilla #2583, a bug in the recursive check for local type
+ containment that controls CDR operator generation in the IDL compiler.
+
+. Addressed Bugzilla #2603, which called for a -oS option for the IDL
+ compiler to set the output directory for skeleton files.
+
+. Fixed Bugzilla #2634, which reported a bug in code generation for some
+ escaped IDL identifiers.
+
+. Eliminated the dependency of the TAO Interface Repository IDL3 test on
+ CIAO libraries.
+
+. Added output message to the IDL compiler, containing the name of the IDL
+ file being processed.
+
+. Fixed IDL compiler to recognize CORBA::AbstractBase as a pseudo object.
+
+. Fixed a regression on Bugzilla #2074 caused by a reference
+ counting problem on the Connection Handler. This change
+ affects all pluggable transport protocol implementations.
+ Maintainers of third-party (non-DOC) pluggable protocols will
+ need to make similar changes to their *_Connection_Handler
+ implementations.
+
+. Fixed parsing of explicitly wildcarded IIOP endpoints.
+ These might be iiop://[::]:, iiop://[]: or iiop://0.0.0.0:
+ The first two examples are useful only when IPv6 is supported.
+ The last example forces only IPv4 endpoints even when IPv6 is
+ supported. Use iiop://: to get both IPv4 and IPv6 endpoints.
+
+. Fixed Bugzilla #2651 to properly handle order of destruction
+ of Codeset Manager instances owned by the Default Resource
+ Factory. The ORB_Core is now responsible for managing the
+ lifecycle of the Codeset Manager instance instead of the
+ Resource Factory. The Resource Factory now gives up ownership
+ of the objects it creates.
+
+. Fixed Bugzilla #2545 so collocated DII oneway requests do not
+ crash in get_in_arg().
+
+. Added a new "-b" option to the IDL compiler to control whether
+ or not arguments on oneway invocations are "cloneable". If the
+ arguments are cloneable, and Custom Servant Dispatching (CSD)
+ strategy is in use, the arguments for collocated oneways can be
+ cloned during the copy of the TAO_Server_Request, which gives a
+ performance improvement over the old method of copying the
+ arguments using marshaling.
+
+. Fixed Bugzilla #2604 so the Implementation Repository can
+ properly keep track of servers it launched in PER_CLIENT
+ activation mode.
+
+. Fixed build warnings from some 64-bit compilers in code in which
+ unsigned long and ACE_CDR::ULong were mixed.
+
+. Added various performance enhancements. Many thread mutex/integer
+ reference counts were replaced with ACE_Atomic_Op<unsigned long>. Some
+ buffers are allocated on the stack instead of the heap where possible.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.5.1 and TAO-1.5.2
+====================================================
+
+. To be able to support CORBA/e the pidl files within the core libs are
+ now compiled during the building of the core libs. This means that gperf
+ and TAO_IDL must be build before you can build the core libs!
+
+. Changed NT_Naming_Service project to require new MPC feature variable
+ "winnt". Avoids building and installing this on non-Windows systems.
+ Fixes bugzilla bug #2412.
+
+. Changed NT_Notify_Service project to require new MPC feature variable
+ "winnt". Avoids building and installing this on non-Windows systems.
+ Fixes bugzilla bug #2411.
+
+. Changed Telecom Log Service plug-in Strategy Interface.
+
+ Added get_record_attribute(), set_record_attribute(), and
+ set_records_attribute(); removed remove(), retrieve(), and update().
+ This will allow plug-in Strategies to handle these high-level
+ operations more efficiently.
+
+ Added get_gauge() and reset_gauge(), to maintain "gauge" used for
+ capacity threshold alarms when log channel's LogFullActionType is
+ DsLogAdmin::wrap. This resolves bugzilla 2420.
+
+. Allow different ORB instances to use a different sets of Service
+ Objects in their own Service Repository instances. This resolves
+ bugzilla #2486.
+
+. Integrate new sequence implementation made by Carlos O'Ryan. This
+ also includes a rework of the TAO_String_Managers and CORBA::(W)String
+ implementations.
+
+. Store Value Factories per orb instead of per process and made the
+ storage thread safe.
+
+. Add on demand write functionality that writes out GIOP fragments to
+ reduce the memory usage
+
+. The TIE files (_S.*) are not generated by default anymore by the
+ IDL compiler. If you need these for your project, add -GT to the
+ idl compiler flags.
+
+. Added optional support for implicitly typed values. When the Valuetype
+ library is compiled with TAO_HAS_OPTIMIZED_VALUETYPE_MARSHALING defined
+ TAO will skip the marshaling of the value's type when it is allowed to
+ do so. It is allowed by the spec to do so when the value's actual type
+ matches the formal type for the parameter through which the value is
+ passed. As older versions of TAO did not correctly unmarshal implicitly
+ typed values, the default behavior is for TAO to always marshal the
+ type id for values.
+
+. Added support for CORBA specified truncatable valuetypes.
+
+. Added support for CORBA specified POAManagerFactory.
+
+. Added TAO-proprietary EndpointPolicy. This is used as a filter to limit
+ which of an ORBs endpoints are inserted into an object reference. The
+ endpoint policy is applied to POAManagers created via the POAManagerFactory
+ and affect all POAs associated with that POAManager.
+
+. Added a client-side connection optimization, the Parallel Connect Strategy
+ This strategy makes the client evaluate all endpoints in profile at the same
+ time when trying to connect to the server. For this to work the server must
+ be run with -ORBUseSharedProfile 1 and the client must be run with
+ -ORBUseParallelConnect 1.
+
+. Fixed several bugs related to asynchronous connection establishment. These
+ are represented by the AMI_Buffering tests and bug 2417's regression test.
+
+. Refactored PICurrent, removing PICurrent_Copy_Callback classes, subsuming
+ this functionality inside PICurrent_Impl where it can be controlled
+ correctly. The copying of PICurrent objects still performs lazy/deferred
+ copying where possible, only taking a real physical copy when modifications
+ are attempted. Interest in PICurrent objects where lazy copies have been
+ taken can now be correctly reversed when the lazy copy is destroyed fixing
+ a range of call-back bugs that were performed on already destroyed objects.
+ (For detail see bugzilla 2552.)
+
+. Updated/Enhanced TAO/utils/nslist utilities nslist,nsadd and nsdel.
+ These tools now allow for full ID.Kind processing (the separating character
+ is user controlled, defaulting to .) and sub-context path processing (the
+ separating character is also user controlled, defaulting to /).
+ nsadd allows for (re)binding naming contexts in addition to final objects
+ nsdel allows for destroying naming contexts when unbinding.
+ nslist output has been prittyfide with user controlled character drawing
+ of the naming context tree or sub-tree of full or limited depth.
+ For full usage details execute these utilities with a ? parameter.
+
+. Add the ability to use the sendfile API to send out data
+ on the transport
+
+
+USER VISIBLE CHANGES BETWEEN TAO-1.5 and TAO-1.5.1
+====================================================
+
+. Fixed LOCATION_FORWARD_PERM handling. See bugzilla #1777 for full details.
+
+. Fixed bug in detecting name clashes between existing identifiers and
+ extra code generated for AMI and AMH.
+
+. Fixed bug in connection closure. See bugzilla # 2391
+
+. Added support for the --enable-fl-reactor configure option to the
+ autoconf build infrastructure to build the TAO_FlResource library.
+
+. Added support for the --enable-qt-reactor configure option to the
+ autoconf build infrastructure to build the TAO_QtResource library.
+
+. Added support for the --enable-xt-reactor configure option to the
+ autoconf build infrastructure to build the TAO_XtResource library.
+
+. Fixed a race condition involving two threads active in the same
+ connection handler at the same time. See bug# 1647 for details.
+
+. Changed #include "..." preprocessor directives to use fully
+ qualified (from $(ACE_ROOT), $(TAO_ROOT), or $(TAO_ROOT)/orbsvcs)
+ paths. We had been depending on non-standard behavior where files
+ #included with "..." are first looked for in the current directory
+ and then in the same directories used by #include <...>. See bug
+ #2448 for details.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4.10 and TAO-1.5.0
+====================================================
+
+. Fixed Transport to handle incoming fragmented messages propperly, abstract
+ interfaces TAO_Pluggable_Messaging and TAO_Transport have been
+ modified. Custom transport/messaging implementations require
+ interface modification.
+
+. Fix collocation optimisation when a location forward is received directing a
+ client to a collocated object.
+
+. Prevent an OBJ_ADAPTER exception when using an object reference containing
+ an ObjectID that corresponds to a collocated IORTable entry.
+
+. Reverted solution that allowed POA-level control over access to
+ security-enabled objects due to conflicts with the specification,
+ i.e. the Security::SecQoP* are not server-side policies.
+
+. When suppressing any and typecodes during IDL compilation this will not
+ trigger compile errors due to missing any insert operations
+
+. Bug fix in IFR when creating typecodes for nested structs and unions.
+
+. Added support for the --enable-tk-reactor configure option to the
+ autoconf build infrastructure to build the TAO_TkResource library.
+
+IDL COMPILER
+------------
+
+. Fix problem with missing includes in the skeleton files for imported arg
+ trait declarations.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4.9 and TAO-1.4.10
+====================================================
+
+. Fixed a bug, which allowed security unaware clients to make
+ invocations on secure objects, when the ORB was configured with
+ support for Security::SecQoPNoProtection.
+
+. Fixed Bugzilla #2145, which was preventing the building of
+ the IDL compiler on HPUX.
+
+. Added boxed valuetype support to the Interface Repository
+ loader.
+
+. Fixed several bugs in the PICurrent implementation
+
+. Fixed GOA factory name
+
+. Fixed -ORBConnectionHandlerCleanup arguments to accept 0 and 1.
+
+. Improved Portable Interceptor implementation.
+
+. Autoconfig improvements.
+
+. Improved Real-time CORBA support for dynamic threads.
+
+IDL COMPILER:
+-------------
+
+. Some bug fixes. See bug #2375 and #2390.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4.8 and TAO-1.4.9
+====================================================
+
+. Added new endpoint selector implementation - Optimized
+ Connection Endpoint Selector. A member of the tao/Strategies library,
+ use svc.conf file to load the OC_Endpoint_Factory object. See
+ tests/AlternateIIOP/svc.conf for an example.
+
+. Continued splitting ORB Services into stub, skeleton, and
+ implementation libraries. Changes to the Concurrency Service,
+ Property Service, and RTEventLog Admin Service (TAO's RTEvent
+ varient of the OMG Telecom Log Service) have been committed.
+
+. Added a new ORB run-time option "-ORBUseLocalMemoryPool [0|1]" which
+ controls an individual application's use of TAO's Local Memory Pool.
+ TAO can use a local memory pool to satisfy some of its needs for
+ heap storage, as it is often more efficient than using the
+ platform's default memory allocator. The pool will always grow as
+ large as necessary to satisfy memory allocations, but it will never
+ shrink. This means that sometimes a process can retain memory that
+ it no longer needs. If the default allocator is used then TAO gives
+ memory back as soon as it is not needed.
+ The UseLocalMemoryPool option selects between using the local memory
+ pool or using the default allocator, where 0 means don't use the pool,
+ 1 means use the pool. The default is still controlled by the original
+ compile-time option controlled by the #define TAO_USE_LOCAL_MEMORY_POOL
+ which defaults to 1 if not specified.
+
+. Add a property -ORBKeepalive to allow a user to specify that
+ SO_KEEPALIVE is set on IIOP connections. See docs/Options.html
+ and Bugzilla #2374.
+
+. Add support for RTCORBA::TCPPrototocolProperties::keep_alive, when
+ RTCORBA is used, and the application is using a Server or Client
+ ProtocolPolicy.
+
+. Refined the Telecom Log Service Strategy Interface. Added methods
+ to fetch/store capacity alarm thresholds, log QoS, and "week mask".
+ Rework locking to avoid race conditions and to improve performance.
+
+IDL COMPILER:
+-------------
+
+. Fixed bug in computation of repository ids for predefined types.
+
+. Fixed bug in the handling of TAO_IDL_INCLUDE_DIR.
+
+Interface Repository:
+---------------------
+
+. Fixed bug in the lookup of a valuetype member's type using its
+ repository id.
+
+. Fixed bug in IFR loader in checking for pre-existence before
+ creating an entry corresponding to an IDL typedef.
+
+. Fixed bug in lookup when checking for a local name clash.
+
+. Fixed bug in the describe_interface() operation when the IDL
+ interface being described has multiple parents.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4.7 and TAO-1.4.8
+====================================================
+
+. Fixed bugs in code generation for interfaces that inherit from both
+ concrete and abstract interfaces.
+
+. Subset Anys and TypeCodes to a separate library. If you use Any/TypeCode
+ or one of the core TAO libs uses it you should link the AnyTypeCode
+ library with your application
+
+. PICurrent is moved to the PI library
+
+. POACurrent has been moved back from PI_Server to PortableServer
+
+. Added IPv6 support for IIOP
+
+. When Any and TypeCode generation is suppressed when compiling IDL
+ no typecodes are generated anymore for user exceptions, they are not
+ needed for the operation of the ORB
+
+. When making AMI invocation and the send blocks we buffer the message
+ and send it out when the transport is available again
+
+. Emulated C++ exceptions are not maintained anymore. We are keeping
+ the macros in the TAO code until x.5.1 is out, if nobody sponsors
+ maintenance at that moment the macros will be removed from TAO.
+ See also http://deuce.doc.wustl.edu/bugzilla/show_bug.cgi?id=2256
+
+. Support the latest AMI mapping, the old mapping will be kept working
+ until 1.5.1 has been released. If you need the old mapping add
+ the define TAO_HAS_DEPRECATED_EXCEPTION_HOLDER to your config.h
+ file before you build TAO and the TAO_IDL compiler
+
+. Added CodecFactory::create_codec_with_codesets to create a codec with
+ a specific codeset. See OMG issue 6050 for the background.
+
+. PortableInterceptor::IORInterceptor has been splitted in IORInterceptor
+ and IORInterceptor_3_0. If you use IORInterceptors read the ChangeLog for
+ the details, maybe you have to update your code!
+
+. Added the new Custom Servant Dispatching (CSD) feature to provide user
+ applications with the ability to implement and "plug-in" custom strategies
+ to handle the dispatching of requests to servants. This new feature is not
+ currently tested for VxWorks. See TAO release notes for more information.
+
+. Added support for an TAO "versioned" namespace. When enabled, TAO
+ library sources will be placed within a namespace of the user's
+ choice or a namespace of the form TAO_1_4_7 by default, where
+ "1_4_7" is the TAO major, minor and beta versions. The default may
+ be overridden by defining the TAO_VERSIONED_NAMESPACE_NAME
+ preprocessor symbol. Enable overall versioned namespace support by
+ adding "versioned_namespace=1" to your MPC default.features file.
+
+. Changed generated signatures of some valuetype member
+ accessor/mutator pairs to be consistent with IN
+ parameter semantics.
+
+. Added spec-required generation of member-initializing
+ constructor for valuetypes. See C++ mapping (03-06-03)
+ section 1.17.2. Closes Bugzilla #2270.
+
+. Added default include paths $TAO_ROOT, $TAO_ROOT/tao,
+ $TAO_ROOT/orbsvcs, and $CIAO_ROOT/ciao to IDL compiler
+ execution, eliminating the need to add them explicitly
+ to the command line.
+
+. Added immediate exits to IDL compiler when some name clash
+ errors are encountered, avoiding a crash if parsing is
+ continued. Closes Bugzilla #2281.
+
+. Changed the behavior of the _default() method (generated
+ for IDL unions that have an explicit or implicit default
+ case label) to clean up memory used by the freed member,
+ if necessary.
+
+. Fixed bug in IDL compiler when handling a native exception
+ in an operation declared in Messaging::ExceptionHolder.
+
+. Although not presently supported by CIAO, added error
+ checking to the IDL compiler's parsing of IDL home
+ primary keys, which constrain the basic valuetype
+ syntax in several ways.
+
+. Fixed order of generated base class stub constructor calls
+ when the IDL interface has both concrete and abstract parents.
+
+. Fixed a bug in the handling of forward declared interfaces
+ that have both concrete and abstract parents.
+
+. Fixed the command line parsing to preserve the literal
+ quotes if they are used in an include path that has a space.
+ Closes Bugzilla #2219.
+
+. Many changes related to refactoring of Anys and Typecodes
+ into a separate library (POC is Johnny Willemsen
+ <jwillemsen@remedy.nl>).
+
+. Merging of many Notification Service changes/fixes from OCITAO to
+ the DOC version. These generally addressed stability issues such as
+ memory leaks, thread leaks, etc.
+
+. Introduction of the versioned namespaces changed the name of the
+ factory function used for dynamically loading the Notification
+ Service persistence mechanisms. See the service configurator file
+ in orbsvcs/tests/Notify/XML_Persistence for an example.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4.6 and TAO-1.4.7
+====================================================
+
+. The Telecom Logging Service now supports dynamically loaded Strategies
+ which can be used to implement a persistent log record store. If none
+ are specified, a default in-memory hash table implementation is used.
+
+. The CodecFactory is moved to its own library. If you use this in your
+ application include tao/CodecFactory/CodecFactory.h and link the
+ TAO_CodecFactory with your app
+
+. The ORBInitializer registry, PolicyFactory registry and ORBInitInfo
+ are moved to the new PI library. If you use these clases include
+ tao/PI/PI.h in your application code and link the new TAO_PI
+ library with your application.
+
+. All server side PortableInterceptor support is moved to the new
+ TAO_PI_Server library. If you use this, include tao/PI_Server/PI_Server.h
+ in your application code and link the new TAO_PI_Server lib
+
+. A new set of examples and support code that show how to set up a
+ multicast-based federation of Notification Services is now available
+ in $TAO_ROOT/orbsvcs/examples/Notify/Federation.
+
+. Hard coded loading of services with Service Configurator now uses the
+ ACE_DYNAMIC_SERVICE_DIRECTIVE macro which also works when the xml
+ version of service config is enabled.
+
+. The Codeset negotiation support is in its own library. The hooks are
+ still present in the ORB Core to dynamically load the codeset support
+ if needed. This behavior is overridden by the new ORB_init option
+ -ORBNegotiateCodesets 0.
+
+. The Boxed Value Type as specified by the OMG is now accepted by the
+ TAO_IDL compiler.
+
+. TAO clients now parse the OMG specified TAG_ALTERNATE_IIOP_ADDRESS
+ profile component. To generate IORs using that component, add the
+ new ORB_init option, -ORBUseSharedProfiles 1.
+
+. Refactored TAO's codeset negotiation feature to be optionally loadable.
+ The implementation is now in a separate library, TAO_Codeset. Applications
+ not wishing to use codeset support may pass -ORBNegotiateCodesets 0 to
+ ORB_init() to avoid loading the library. When building dynamic applications
+ codeset negotiation is available by default. For static applications, the
+ default is to *not* include codeset negotiation. Staticly linked apps
+ needing codeset negotiation support must do two things:
+ - Define the new MPC feature "negotiate_codesets=1" in default.features
+ and regenerate makefiles
+ - Add "#include <tao/Codeset/Codeset.h>" somewhere in their application
+ source. Placing this in the source file that includes calling ORB_init()
+ is probably the best place.
+
+. Added CORBA::Object::_repository_id() and CORBA::Object::_get_orb()
+ as described by the spec.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4.5 and TAO-1.4.6
+====================================================
+
+. The RTOldEvent library has been removed. The RTEvent library has been
+ split in a stub/skel and serv library.
+
+. Support for bi-directional communication over SSLIOP.
+
+. Servants are now always reference counted, in accordance with changes
+ to the CORBA specification.
+
+. Added a -x option to catior that works like -f except that it reads
+ the IOR from standard input rather than from a file. This makes catior
+ much more like the unix "cat" command, and enables it to be used in a
+ pipeline.
+
+. Changed the precedence rules for the -ORBListenEndpoints (aka
+ -ORBEndpoint) so that the host identifier (either hostname or IP
+ address) that appears in IIOP profiles is determined thus:
+
+ 1. value from hostname_in_ior (if specified);
+ 2. setting of -ORBDottedDecimalAddresses option;
+ 3. value for hostname in -ORBListenEndpoints specification;
+ 4. whatever TAO magically comes up with based on system
+ configuration
+
+ A new test (TAO/tests/IOR_Endpoint_Hostnames) verifies the
+ operation of this feature.
+
+. Changed the way that Bidirectional endpoint processing happens when
+ -ORBDottedDecimalAddresses 1 is in effect. The previous behavior
+ always used the setting of the receiver, but that caused problems when
+ the sender and receiver were not using the same dotted decimal
+ addresses setting. Bidirectional endpoint processing now uses
+ whatever the sender provides as the hostname since that's also what
+ will be in that sender's IORs.
+
+. Added a configuration property -ORBIMREndpointsInIOR [0|1] that
+ controls whether ImR endpoints are written into persistent IORs. See
+ $(TAO_ROOT)/docs/Options.html and bugzilla #2123 for usage.
+
+. Increment the refcount on the servant in the id_to_servant and
+ reference_to_servant methods of the POA.
+
+. Improved g++ 4.0 support. A number of RTTI related problems have been
+ fixed, in addition to removal of duplicate internal ORB related
+ singleton instances.
+
+. Fixed assertion that occured in some thru-POA collocated calls.
+
+. Fixed CORBA::UnknownUserException Any insertion problem.
+
+. Fixed TypeCode equivalence failure when comparing aliased and
+ unaliased TypeCodes of the same type.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4.4 and TAO-1.4.5
+====================================================
+
+. The POA is rewritten so that it uses strategies for its implementation.
+
+. The ImR handling is moved to the new ImR_Client library. If your server
+ needs to register itself to the ImR you have to link the new ImR_Client
+ library
+
+. The MIOP part of the POA is moved to the GOA. See the latest version of the
+ MIOP specification. You have to link now with the PortableGroup
+ library and retrieve a GOA instead of the RootPOA.
+
+. Implemented several missing parts of POA functionality as described
+ by the latest corba specification. Missing functionality, incorrect
+ exceptions, incorrect minor codes and much more.
+
+. Splitted the huge PortableServer.pidl file in several smaller files
+ and regenerated all the generated files in the repository.
+
+. Move TAO_ORB_Manager from PortableServer to Utils library, this is a
+ helper class.
+
+. The POA has been split in Root_POA and Regular_POA, on this we will more
+ in the future so that the Root_POA just pulls in the minimal set of things
+ needed.
+
+. The RootPOA now has "RootPOA" as its adapter name, previously it had
+ an empty string. This is required by the CORBA specification, you can
+ overrule this by defining TAO_DEFAULT_ROOTPOA_NAME if you want to
+ reduce the "RootPOA" string to be shorter, e.g., "".
+
+. Added support for GNU G++ 4.0. Additional details in ACE `NEWS' file.
+
+. Explicit template support has been dropped for TAO and it is not possible
+ to use it anymore.
+
+. CORBALOC/CORBANAME patched a memory leak and fixed performance related
+ to the use of defaulted object keys.
+
+. Added support for Visual Age on AIX
+
+. Made it possible to run most ORB core test with VxWorks in a cross host
+ scenario where one part of the test runs on the host and the other part
+ of the test runs on the VxWorks target
+
+. The skeletons generated by the TAO_IDL compiler have been refactored
+ to significantly reduce the size of server applications. Please see
+
+ http://www.dre.vanderbilt.edu/Stats/
+
+ for metrics that illustrate the magnitude of the reduction.
+
+. New TypeCode implementation that reduces the size of TypeCodes in
+ memory at run-time.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4.3 and TAO-1.4.4
+====================================================
+
+. Reimplemented the way that TAO_Transport deals with GIOP headers. In
+ some cases partial GIOP message headers were read and used as if a full
+ GIOP header were received. [Bug 1681]
+
+. GIOP fragment handling has changed where a single large allocation and
+ copy occurs at the end of a fragment chain instead of an allocation and
+ copy for every fragment received.
+
+. The tao-config script has been replaced by pkg-config metadata files
+ which are installed in ${prefix}/lib/pkgconfig by the automake build.
+
+. SHMIOP respects now the dotted decimal addresses setting. When this is
+ set it uses ip addresses instead of hostnames.
+
+. Removed the usage of the ACE_x_cast macros, we are using the C++ casts
+ from now on. The TAO core libraries will be updated before the x.4.5
+ release.
+
+. Removed MPC code that creates unused and unnecessary subfolders in
+ Visual Studio projects and makefiles.
+
+. Fixed unclosed temporary file created by the IDL compiler on platforms that
+ lack mkstemp. [BUGID:2026]
+
+. Fixed IDL compiler bug related to handling null object references in a
+ sequence. [BUGID:2027]
+
+. Made behavior when marshaling null value of an abstract interface similar
+ to the behavior of CORBA::Object.
+
+. Made use of 'true' and 'false' with CORBA::Boolean more consistent in TAO
+ source code and generated code.
+
+. Fixed bug in code generation for typedefs of IDL arrays that are not declared
+ at global scope or in a module (i.e., in an interface, valuetype, eventtype
+ or home).
+
+. Fixed bug in code generation of parent operations in AMI ReplyHandler
+ interfaces.
+
+. Changed remaining instances of C-style casts in generated code to the
+ appropriate C++-style cast.
+
+. Fixed typo in code generation of bounded sequences of CORBA::Object.
+
+. Fixed bug in code generation for attributes which are unaliased bounded
+ (w)strings.
+
+. Changed implementation of TAO::Unknown_IDL_Type (a subclass of TAO::Any_Impl
+ used when an Any is first decoded from the wire or created from a Dynamic
+ Any) to contain its value in a TAO_InputCDR stream rather than an
+ ACE_Message_Block*, thus cleaning up alignment and memory management code
+ related to this type.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4.2 and TAO-1.4.3
+====================================================
+
+. New pluggable protocol for GIOP over HTBP, known as HTIOP. Source in
+ orbsvcs/orbsvcs/HTIOP.
+
+. All TAO-specific vendor IDs are now found in the "TAO" namespace.
+ Documentation for these constants has also been improved in a number
+ of cases.
+
+. Further reduced inter-header dependencies, which should improve
+ compilation times for TAO and TAO applications.
+
+. Fixed memory leak in CDR encapsulation Codec's encode_value() method.
+
+. Modified PerlACE scripts for Tests/test environment to allow
+ per-platform customization of process startup delay. Used the changes
+ in various run_test scripts.
+
+. SyncScope::NONE blocks during connects [Bug 1476].
+
+. Improved compatibility with JDK orb.
+
+. Added Wait on LF No Upcalls (MT_NOUPCALLS) wait strategy. However,
+ recent experiences with it indicate there may be problems in scenarios
+ other than its original motivating case (see ChangeLog). This feature
+ should be considered EXPERIMENTAL, and use it at your own risk.
+
+. New CORBALOC parsing is available. This feature allows TAO clients to
+ use any third-party pluggable protocol in corbaloc strings.
+
+. Fixed bug that caused memory fault when incoming object reference
+ contains an unknown profile.
+
+. Fixed problem in some modules when platform lacks unsigned long long
+ support.
+
+. Modified catior to allow decoding of additional protocols.
+
+. The PortableServer library isn't depended anymore on the
+ ObjRefTemplate and IORInterceptor libraries. ObjRefTemplate and
+ IORInterceptor are loaded on demand and depend on PortableServer.
+
+. IDL compiler can be built for environments that lack unsigned long
+ long.
+
+. Reduced the amount of code generated by the TAO_IDL compiler when
+ using forward declarations.
+
+. Naming Service implementation memory leak fixes.
+
+. Split ORB Services into stub, skeleton, and implementation libraries.
+ Changes to the Naming, Trading, Event, Notification, and Logging
+ Services have been committed.
+
+. Common utilities (tao_imr, tao_ifr, nslist, nsadd, nsdel,
+ NamingViewer) now installed in $ACE_ROOT/bin.
+
+. Changed #includes of orbsvcs header files to be consistent. The
+ pathname now always contains a "orbsvcs/" prefix.
+
+. Notification Service EventReliability and ConnectionReliability QoS
+ have been added to bring the DOC version of Notification Service
+ into feature parity (in this area) with OCITAO's 1.3a version of the
+ Notification Service. Note that due to changes between 1.3a's
+ source base and DOC's 1.4.3 source base, this is a re-implementation
+ of the changes and not a simple port.
+
+ In addition to the changes made directly to the Notification Service
+ a number of test and example programs have been created for the
+ reliable notification service. These programs may be found in
+ subdirectories of $TAO_ROOT/orbsvcs/tests/Notify. A README file
+ in each directory provides more detailed information, and a run_test.pl
+ script is included to run the example or test.
+
+. A change has been made to the Notification Service IDL to improve build
+ times and reduce the Notification Service footprint. The change suppresses
+ the generation proxy and stub code for the many interfaces that are
+ specified by the OMG, but are not implemented in TAO.
+
+. Implementation Repository refactored to allow the locator and
+ activator to be used as services in the ACE Service Configurator
+ framework. The locator and activator services have been split into
+ separate libraries and executables. There have also been
+ miscellaneous bugs fixed and performance enhancements made.
+
+. Fixed Load Balancer binary generation problem. Libraries were being
+ created rather than executables.
+
+. Work around MSVC++ 6 namespace brain damage in new Security/SSLIOP
+ code.
+
+. Fixed memory management problem in SecurityLevel3 code.
+
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4.1 and TAO-1.4.2
+====================================================
+
+. Overall
+ - Support for g++ 3.4.1.
+ - Support added for latest HP aCC compiler.
+ - Improved Doxygen documentation.
+ - Reduced header file dependencies, which should speedup compilation
+ and help minimize static footprint.
+
+. ORB
+ - Fixed memory leak in DII exception handling.
+ - Fixed insertion of label values when creating a union type code
+ with create_union_tc().
+ - Support for retrieving AMI and AMH reply handlers from a local
+ memory pool.
+ - Fixed location forwarding to collocated objects.
+
+. POA
+ It is now possible to pass user-defined policies unknown to the
+ POA with corresponding registered policy factories to the
+ POA::create_POA() method via its policy list parameter, as
+ required by the CORBA specification.
+
+. TAO_IDL
+ - Closed security hole on platforms that support mkstemp() function.
+ - Fixed potential buffer overrun problem.
+ - A number of scoped name bugs have been fixed, including some
+ workarounds for MSVC++ 6 scope resolution problems.
+ - Fixed mixing of *Implicit and *Explicit inheritance lines when the
+ there is a chain of inheritance in component homes.
+ - Improved error checking of component and home declarations.
+ - Code generation for valuetypes that support one or more abstract
+ interfaces.
+ - Added new "-GA" option that causes CORBA::Any operators and
+ TypeCode bodies to be generated in a separate "fooA.cpp" file.
+ Helps reduce footprint for applications that do not use Anys or
+ TypeCodes.
+ - Added required _downcast() method to generated value factories.
+ - Disabled generation of implementation class for abstract
+ interfaces.
+ - Removed support for reading an IDL file from stdin. This feature
+ is legacy code used for debugging the IDL compiler in the early
+ days of its implementation, and is not useful in application
+ situations.
+ - Generated stub/skeleton inline files now end in ".inl" instead of
+ ".i". The latter is generally used as the extension for
+ pre-processed C sources.
+ - Process multiple IDL files in a single execution by iteration
+ in a single process, rather than spawning a process for each
+ file as before.
+ - Added the remaining spec-defined sequences of predefined types
+ to the CORBA namespace in TAO.
+
+. Added CPU utilization load monitor to TAO's Cygnus load balancer.
+
+. Added basic CSIv2 support, which is the latest CORBA Security
+ architecture specification.
+
+USER VISIBLE CHANGES BETWEEN TAO-1.4 and TAO-1.4.1
+==================================================
+
+ORB
+---
+. Changed the name of a parameter to the TAO type code
+ internal method to avoid a name clash with STL.
+
+. Added the spec-required ostream insertion operator for
+ CORBA::Exception* to go with the existing ostream
+ insertion operator for CORBA::Exception&.
+
+. Moved the above ostream insertion operators into the
+ CORBA namespace, so they cannot be accidentally hidden by an
+ application.
+
+. Moved the declaration of Any operators for some ORB
+ types so that the corresponding definitions may
+ remain unlinked if the Any operators are not used in
+ an application.
+
+. Fixed typo in type code factory code that is compiled
+ only when ACE_SWAP_ON_WRITE is defined.
+
+. Several fixes to MakeProjectCreator (MPC) files, which
+ generate GNU makefiles, Borland makefiles, and Microsoft
+ Visual Studio project files.
+
+. Fixed Any insertion and extraction operators for bounded
+ strings and wstrings to prevent an error if they are
+ inserted as bounded with bound 0 and extracted as
+ unbounded, or vice versa.
+
+. Deprecated the TAO-specific _type() method for exceptions.
+ which is no longer used anywhere in TAO, and is retained
+ solely for backward compatibility.
+
+. Fixed bug in TAO_SSLIOP pluggable protocol that prevented large
+ requests from being sent. [Bug 1429]
+
+. Cleaned up interceptor memory leaks that occurred when
+ CORBA::ORB::destroy() was called.
+
+. Fixed problem where a ServerRequestInterceptor could be called after
+ the ORB was shutdown. [Bug 1642]
+
+. Overhauled PICurrent support to fix several problems. [Bug 1215, 1738]
+
+. SSLIOP documentation is now available.
+
+. Fixed memory leaks in servers when the ORB is operating in a
+ thread-per-connection mode. This problem showed up when clients
+ keep connecting and disconnecting from the servers.
+
+. Fixed memory leaks in AMI clients that connect to a servers over
+ unreliable connections that keeps getting dropped.
+
+. Fixed a race connection in Any_Impl implementation.
+
+. Fixed a byte order problem with DSI gateways
+
+. Added support for OVATION to work with this BFO of TAO.
+
+IDL COMPILER
+-------------
+
+. Changed the names of some local variables in generated
+ operation code, to reduce that chance of a name clash.
+
+. Fixed bug where a #pragma version directive is sometimes
+ not reflected in the generated repository id.
+
+. Disambiguated generated template instantiations for array
+ _var, _out and _forany classes, when two or more arrays
+ have the same element type and bound.
+
+. Added check for a name clash between a valuetype member
+ and the first segment of a scoped name referenced in
+ the valuetype.
+
+. Fixed incorrect code generation for the CDR operator of a
+ struct/union/exception with an undefined forward declared
+ interface member.
+
+. Fixed incorrect code generation for operation arguments
+ that are typedefs of char, octet and boolean.
+
+. Fixed bug in handling complex recursive types.
+
+. Added -GId command line option to generate line and
+ file debug info in *I.* files, similar to what is
+ already generated in *C.* and *S.* files. This debug
+ info generation is now off by default in *I.* files.
+
+. Fixed the handling of included orb.idl file to generate
+ corresponding C++ includes for the files orb.idl
+ itself includes, which contain spec-required declarations
+ of sequences of basic CORBA types.
+
+. Fixed generation of ORB file includes triggered by the
+ presence of one or more abstract interfaces in an IDL file.
+
+. Added check to the generation of _setup_collocation()
+ method for abstract interfaces, to make it more robust.
+
+. Added a version of the realpath() system function that
+ can be used with LynxOS, which does not have a native
+ version.
+
+. Fixed code generation for bounded strings and wstrings
+ when they appear anonymously (without a typedef) as operation
+ parameters.
+
+. Fixed code generation of flat names for AMI-related types.
+
+. Fixed errors in code generation of sequences of components
+ and eventtypes.
+
+. Fixed code generation of CDR operators for aggregate types
+ that contain one or more abstract interfaces.
+
+. Fixed bogus errors produced when there are repeated forward
+ declarations of an interface.
+
+. Fixed errors in some use cases of the propagation of a #pragma
+ prefix directive to nested scopes in generated repository ids.
+
+. Fixed errors in code generation for attributes in Asynchronous
+ Method Handler (AMH) classes.
+
+. Fixed a bug that caused the IDL compiler to crash when it sees
+ certain kinds of illegal IDL.
+
+. Fixed problems in the interaction of checks for local interface
+ and for null object reference when marshaling an interface
+ member of an aggregate type.
+
+. Fixed generation of operations inherited by a local interface
+ from a non-local one - these operations must be regenerated
+ as pure virtual.
+
+. Added a space between some generated template parameter
+ opening brackets and a leading double colon of a fully
+ scoped name, since some compilers would read "<:" as
+ the digraph character for ']'.
+
+. Fixed bug in code generation for an array of typedef of
+ string and wstring.
+
+. Fixed a bug in the generation of repository ids for
+ explicit, implicit and equivalent interfaces for component
+ homes.
+
+. Fixed bugs in the generation of marshaling and demarshaling
+ code for aggregate types with component or eventtype members.
+
+ORB SERVICES:
+-------------
+
+IFR:
+---
+
+. Fixed bug in creating entries for attributes, which in CORBA 3.x may
+ have separate get- and set- exceptions lists.
+
+. Added some method overrides to disambiguate multiple inheritance
+ problems some compilers would have in classes added to support CORBA
+ 3.0 extensions.
+
+. Fixed bugs in entering attributes of abstract and local interfaces,
+ and in querying for attributes of components.
+
+. Added a "-m" option to IFR_Service to enable multicast discovery of
+ the service.
+
+LOAD BALANCING
+--------------
+
+. Added two new strategies, namely LoadAverage and LoadMinimum.
+
+NOTIFICATION SERVICE:
+---------------------
+. Corrected the implementation to add the caller's <subscribed_types>
+ to the Admin Object's types. This solves the problem that if a
+ proxy's connect_structured_push_consumer() is called *AFTER* the
+ proxy's subscription_change(), then the subscriptions do not work.
+
+. Added the -NoUpdates option to the Notification svc.conf
+ options. If this option is specified, the
+ subscription_change/offer_change messages are NOT sent to proxy
+ objects. This option is useful to turn off entire updates for
+ applications that do not reply on subscription_change/offer_change
+ messages.
+
+
+USER VISIBLE CHANGES BETWEEN TAO-1.3.6 and TAO-1.4
+==================================================
+
+IDL COMPILER:
+-------------
+. Fixed bug related to the order of #pragma prefix and #include
+ directives
+
+. Fixed bug in generation of copy constructor for AMH interface
+ classes.
+
+. Fixed incorrect handling of a parameter name in an AMI sendc_xxx
+ operation that clashes with a C++ keyword.
+
+. Readded the generation of _unchecked_narrow () back into the stub
+ code since it is required by the latest OMG CORBA specification.
+
+CORE ORB
+-------
+
+. SCIOP endpoints are not created by default. They need explicit
+ specification of -ORBEndpoint sciop:// at startup.
+
+. Fixed a bug that caused the ORB to dump a core when server side
+ interceptors returns an exception and if the operation parameters
+ contains a sequence an out parameter.
+
+. Fixed a bug that caused extraction of basic data types that are
+ aliased from an Any.
+
+. Added a couple of regressions tests for some of AMH features.
+
+. Lots of other bug fixes (see the bottom of this message for a
+ complete list of bugzilla bugids fixed in this beta).
+
+. Fixed a problem with dynamic loading of the ORB. This was introduced
+ by "magic" static constructors in the TAO PortableServer headers
+ where dynamic loading/unloading of the ORB failed.
+
+. Added an option, -ORBDisableRTCollocation which allows users to
+ disable the RT collocation technique used by TAO and fall back on the
+ default collocation technique used for the vanilla ORB.
+
+. Prevent the TP_Reactor used within TAO from exiting when it receives
+ a EINTR during select ().
+
+ORB SERVICES
+------------
+
+. Added new security variable so that libTAO_Security could be built
+ independently of libTAO_SSLIOP, and set the default to true.
+
+. An initial implementation of the FTCORBA spec has been added to
+ TAO. This release features an initial cut of ReplicationManager,
+ FaultNotifier, and a FaultDetector. Please see
+
+ $TAO_ROOT/orbsvcs/tests/FT_App/README
+
+ for a simple example that uses the different FTCORBA features that
+ have been implemented in TAO.
+
+. Fixed a bug, in PG_ObjectGroupManager::remove_member () methods
+ which caused the group entry to be available in the location_map
+ when a member of the object group is removed.