PLANNED MAJOR CHANGES TARGETED FOR ACE-5.4.3 ==================================================== - (Bala) Bug 1890-Select_Reactor and Priority_Reactor performance can be improved - (Boris) Addition of XSC - (Steve, Ossama) Autoconfigure using all MPC-generated files. - (Steve) Wide-char functionality on POSIX (Linux, etc.) USER VISIBLE CHANGES BETWEEN ACE-5.4.1 and ACE-5.4.2 ==================================================== . Support for g++ 3.4.1. . All ACE Makefiles, project files, etc, are now generated by OCI's "MakeProjectCreator" (MPC) tool. Makefiles and project files for commonly used configurations have been pre-generated and distributed with the beta(s). Please see: $ACE_ROOT/ACE-INSTALL.html for information on how to use MPC with ACE. . Improved Doxygen documentation. . Reduced header file dependencies, which should speedup compilation and help minimize static footprint. . ACE now requires support for the following standard C++ features: - "bool" keyword - "mutable" keyword - "explicit" keyword - C++ casts (e.g. static_cast<>, reinterpret_cast<>, dynamic_cast<> and const_cast<>) If you're using a compiler that does NOT support these features please contact Steve Huston for support. . Changed the select()-based reactor implementations to scan for broken handles to remove based on the registered handles, not on event handlers. This allows for bad handles to be removed from the reactor even if the event handler doesn't implement get_handle() the way we expect. . Support for Pthreads native recursive mutexes was added. This capability is specified to ACE_OS::mutex_init() as an optional argument, lock_type. To fix confusion from an earlier attempt to add this functionality, the meaning of the old 'type' argument to ACE_OS::thread_mutex_init() is changed. It previously combined the scope and type. Now it is just the type (e.g. recursive), as the scope is inherent in the method used. For clarification on ACE_HAS_RECURSIVE_MUTEXES, it means that the platform is capable of them, not that they always are, as one would expect. However, before Pthreads had recursion added, it was never optional. Now it is. . Initial support for new Linux sys_epoll() interface in Dev_Poll_Reactor. The obsolete Linux /dev/epoll interface is no longer supported. . Improved Cygwin support. - Threading works without problems. - Problems with shared memory, process shared mutexes, multicast and some other small things still exist. . New OpenVMS port. - This is for the latest version of OpenVMS with all available ECOs applied. Basic stuff works without problems. Advanced features still need some work. . Usage of ASYS_INLINE is deprecated in ACE. Use ACE_INLINE instead. . All inline source files now end in ".inl". The previous ".i" extension is generally used for preprocessed C sources. . Autoconf support has been improved and fixed on a number of platforms, including the BSD variants (e.g. FreeBSD). It is still not the preferred way to configure most platforms, but it is ready for wider testing. Please report any problems found to ace-bugs@cs.wustl.edu. . A number of fixes were made to quiet compile errors and warnings on 64-bit Windows. . For builds on AIX using Visual Age C++, the make rtti option default was changed to 1, enabling RTTI by default. . ACE_Service_Repository::remove() has a new, optional argument that can receive the service record pointer for the removed service. If the pointer is returned to the caller, it is not deleted. If the pointer is not returned to the caller (the default) it is deleted (this is the historic behavior). . The tutorials in ACE_wrappers/docs have been removed. They were not being maintained and caused confusion in a number of cases. Now that there are complete examples that match the printed books (C++NPv1, C++NPv2, APG), the older tutorials are no longer useful. Please see $ACE_ROOT/examples/C++NPv1/ $ACE_ROOT/examples/C++NPv2/ $ACE_ROOT/examples/APG/ for the source code of the examples in those books. . ACE_String_Base::fast_clear() is a new method which sets the string length to 0. Doesn't release string-allocated memory, but if the memory was externally supplied, it is no longer referenced from the string object. . A true C++ "bool" is now used as the CDR stream boolean type, if supported by the compiler. . Renamed AIX 5L configuration header from config-aix5.1.h to config-aix-5.x.h. . All C++ equality, relational and logical operators now return bool instead of int, as is the norm for modern C++. . Added new ACE_OS::realpath() implementation. Contributed by Olli Savia USER VISIBLE CHANGES BETWEEN ACE-5.4 and ACE-5.4.1 ==================================================== ACE --- . Fixed "make install" support in ACE+autoconf configurations. . Fixed autoconf support on Solaris. . Corrected invalid `aux' directory (on MS Windows) found in ACE distribution. . ACE/TAO build now without problems with MinGW and all ACE tests run now without problems . Added some more support for the new CBuilderX Preview compiler, this is not 100% ready yet because the compiler is still a preview and has its own problems. . Added Visual SlickEdit 8.1 MPC template . Added workaround for compile problems in Borland Release builds . Cygwin 1.5.9 is now supported . Tests for IPV6 have been added . Implement lstat() so that it'll use stat() on platforms that don't support lstat(). . Problems related to ACE_Event_Handler usage in WFMO_Reactor was fixed. . A wrapper for rmdir () has been added. . Threads spawned in thread-per-connection mode never inherited the priority. This problem was fixed and this fix is consistent with the C++ NPV* books. . Fixed memory leaks with ACE_String_Base::resize () . Enable the usage of native recursive mutexes for the implementation of ACE recursive mutexes on Linux. . The ACE Proactor framework can now be enabled for AIX 5.2. Since AIO functionality is not run-time enabled by default on AIX 5.2, the ACE Proactor code is not built by default on AIX. To enable it, the config.h file must contain #define ACE_HAS_AIO_CALLS before including the config-aix-5.1.h file. . The ACE_POSIX_CB_Proactor implementation is now built on all platforms except LynxOS. USER VISIBLE CHANGES BETWEEN ACE-5.3.6 and ACE-5.4 ================================================== ACE: --- . Added a new makefile commandline flag, static_link, that can be used to force static linking when static_libs_only is turned on. It uses the new STATIC_LINK_FLAG variable and is currently only implemented for for GNU ld, i.e., it adds the "-static" option to LDFLAGS. It's turned off by default since using it causes the footprint to go up by almost 1 MB on Linux, since it links all the system and compiler .a files, but can be turned on if users want/need to use it, by enabling both static_libs_only and static_link. . Added macros ACE_USES_GPROF which enables users to use gprof in a multithreaded environment with ACE libs. . Added a new functor template class, ACE_Malloc_Lock_Adapter_T, that's used by ACE_Malloc_T as a factory for the ACE_LOCK template parameter, and allows the use of locking strategy classes, like ACE_Process_Semaphore and ACE_Thread_Semaphore that don't have a satisfactory ctor taking a single required ACE_TCHAR* parameter, to be adapted to work with ACE_Malloc_T. . The source code examples from "The ACE Programmer's Guide" book by Huston, Syyid, and Johnston, are now located in $ACE_ROOT/examples/APG. . Support for GNU autoconf is now in ACE. Please see ACE-INSTALL.html for details. . Fixed problems that prevented ACE from being compiled on LynxOS 4.0.0. . Fixed compilation error which prevented ACE from being compiled when ACE_COMPILE_TIMEPROBES was set to 1. . Preliminary support for Tandem NSK has been added. . Lots of bug fixes with TLI and XPG5. Please see $ACE_ROOT/ChangeLog for details. . Fixed ACE_OS::event_timedwait() and ACE_OS::event_wait() so that they use a while loop around the ACE_OS::cond_[timed]wait() calls to avoid problems with spurious wakeups, etc. . ACE's wrapper around getipnodebyname() and getipnodebyaddr () has been made go through the IPv4-only case on ACE_WIN32. Since Windows IPv6 implementation doesn't offer support (at thistime) for getipnodebyname() the code has been changed to use the IPV4 part of the code. . Install with Borland C++ of ACE library fixed ACEXML: ------- . Fixed memory leak in ACEXML parser. . Fixed implementations of rewind() in all the CharStreams. They were broken previously. . Fixed bugs in the parser associated with incorrect handling of PE References for keywords.