ChangeLog

Release Notes for radlib
------------------------



2.12.0    03-17-2012
--------------------

1)   Added radMsgRouterMessageIsRegistered function to find out if a message Id 
     is registered for reception by one or more clients.

2)   Added radSocketClientCreateAny to radSocket which uses getaddrinfo instead
     of gethostbyname so all of the matching records can be tried in the order
     they are returned.

3)   Added better detection of corrupted buffer headers in radbuffers.c.




2.11.3    04-10-2011
--------------------

1)   Fix 28 byte memory leak in radconffile.c.




2.11.2    04-01-2011
--------------------

1)   Add more verbose logging for sqlite errors.




2.11.1    04-01-2011
--------------------

1)   Fix errant result set release when sqlite3_prepare fails in radsqlite.




2.11.0    03-30-2011
--------------------

1)   Add a limited pthread implementation (radthread) to be used with radlib 
     processes.



2.10.3    03-14-2011
--------------------

1)   Remove HOST_IS_BIGENDIAN macro usage in favor of the WORDS_BIGENDIAN macro
     defined in config.h by autoheader. This supports OSX universal binaries.



2.10.2    02-21-2011
--------------------

1)   Change preprocessor directives to avoid negation ("!").



2.10.1    05-15-2010
--------------------

1)   Fix database string type field handling bug introduced in 2.10.0.



2.10.0    05-11-2010
--------------------

1)   Added remote msgRouter support. Multiple processors running radmrouted can
     share the same message namespace. The radmrouted instance running on each 
     processor "associates" to his peer(s) using TCP/IP sockets. A radmrouted 
     instance may be a server and/or client. Messages routed on one processor 
     are routed to all associated processors and delivered to all consumers
     on each processor for that message type. It makes interprocessor
     communications transparent.



2.9.0     12-09-2009
--------------------

1)   Updated build files to support debian package creation for radlib.



2.8.5     11-12-2009
--------------------

1)   Changed library search order in Makefile.AMs so the $prefix path is used first.



2.8.4     08-15-2009
--------------------

1)   Made install-sh executable to fix install issue.



2.8.3     07-05-2009
--------------------

1)   Added radsqlitePragma method so pragma commands can be issued to the SQLite
     database.

2)   Modified radUtilsSleep so it will wait properly if signals interrupt it.



2.8.2     01-22-2009
--------------------

1)   Changed some SQLite names so it does not collide with the MySQL/PostgreSQL
     namespace.

2)   Added some system call return value checks to avoid compiler warnings.

3)   Fixed a bug when a query fails and results are not expected.




2.8.1     01-09-2009
--------------------

1)   Optimized SQLite3 access methods.

2)   Added a fast text search utility (radtextsearch.[ch]). Uses red-black binary 
     trees to store and find text strings.




2.8.0     09-20-2008
--------------------

1)   Added SQLite3 support. The interface is very similar to the 
     MySQL/PostgreSQL interface. It is enabled at configuration via the
     "--enable-sqlite" option. It may be built along with MySQL or PostgreSQL
     (it is not mutually exclusive). See the API reference for details.




2.7.5     04-07-2008
--------------------

1)   Changed radTimeGetMSSinceEpoch to return an unsigned long long (ULONGLONG)
     to avoid rollover.

2)   Rewrote the timer subsystem to simplify and address SIGALRM race condition.
     The API did not change.




2.7.4     03-17-2008
--------------------

1)   Added stdin, stdout and stderr redirection to /dev/null for 
     radUtilsBecomeDaemon.




2.7.3     03-08-2008
--------------------

1)   Fixed several boundary issues with timers.




2.7.2     02-10-2008
--------------------

1)   Fixed bug in radtimers.c when timers are cancelled then restarted.

2)   Make "install-env" script executable.




2.7.1     12-01-2007
--------------------

1)   Updated build environment to better support cross compilation.

2)   Added "radUDPSocketReceiveFrom" which allows retrieval of the far-end
     socket info (sockaddr_in). This provides the far-end IP and port number.

3)   Added radMsgRouterProcessExit to the client API.




2.7.0     03-30-2007
--------------------

1)   Updated to work properly on both 32 and 64-bit architectures. No special 
     configuration required. A few API calls changed ("int" arguments became
     "long") but only a few.

2)   Increased default system buffer numbers and added an additional size of
     8192 to better support 64-bit platforms.




2.6.2     01-30-2006
--------------------

1)   Fixed missing error check in radSocketClientCreate for non-blocking connect.

2)   Bumped up the radMsgLog buffer size to 512.




2.6.1     12-24-2005
--------------------

1)   Added NSLU2 ipkg binary support for radlib and radlib-devel in the openslug 
     environment. radlib can now be easily deployed on the LinkSys NSLU2 
     openslug platform. 
     See the new README file section "LINKSYS NSLU2 DEVELOPMENT" for details.

2)   Enhanced PostGreSQL raddatabaseTableIfExists function to more efficiently
     determine if the table exists.




2.6.0     12-08-2005
--------------------

1)   Added more robust signal handling to the template examples.

2)   Added "radProcessGetExitFlag" routine to be used in signal handlers.

3)   Added new message routing API to support the "route by message ID" 
     paradigm. Called radMsgRouter.[ch], it requires no destination to be 
     specified when sending a message and routes messages to all subscribers of 
     the message ID being sent. It requires a new router process which must be 
     started prior to any other radlib processes. See radmsgRouter.h for details.

4)   Changed the build environment so "raddebug" and the new message router
     "radmrouted" are built/installed when radlib is built/installed. They are 
     installed to the same prefix as radlib in the "bin" directory, i.e.
     [prefix]/bin/raddebug and [prefix]/bin/radmrouted.

5)   Added a new message router-based multiprocess template application example.
     This demonstrates how to use the new radlib message router and how to 
     implement radlib multiprocess applications.




2.5.1     11-13-2005
--------------------

1)   Added return statement to "radUDPSocketRecvFrom" so status is returned 
     properly.

2)   Added "EINTR" handling in the reflector process of radqueue.c.




2.5.0     11-03-2005
--------------------

1)   Changed the typedefs for LIST and LIST_ID to RADLIST and RADLIST_ID
     respectively to avoid namespace collision with MySQL, which began using 
     these names in version 4.1 about 12 years after early incarnations of 
     radlib did. All radlib applications using the list utility will have to be 
     changed to use the typedefs "RADLIST" and "RADLIST_ID".

2)   Added socket debug capability and the functions "radSocketSetDebug" and 
     "radUDPSocketSetDebug" to enable or disable the logging of all RX/TX data
     on the socket.

3)   Changed read paradigm for the UDP sockets to use the system call "recvfrom"
     instead of the "read exact" approach as UDP datagrams cannot be read in a
     piecemeal fashion, as required by the "read exact" approach.

4)   Changed the radlib build model to use libtool and generate shared libraries
     as well as the static library when allowed on the build platform. Modified 
     radlib header files so they can be included in C++ source files. These two 
     changes allow radlib to be used (linked) in C++ applications.




2.4.0     10-22-2005
--------------------

1)   Added capability in radprocess.[ch] to add (prepend) and remove additional 
     message queue handlers. A list of handlers is now maintained and traversed
     when a message is received. Added functions to flag a message for retention
     (replaces the previous srcQueueName kludge) and to halt the message handler
     traversal (if the message is to be consumed by a given handler) which can 
     be called from within a message handler. See radprocess.h for details.

2)   Added SHA-1 and SHA-256 secure hashing algorithm utilities - an 
     implementation of NIST's Secure Hash Algorithms. This utility generates 
     160 bit and 256 bit hashes (or digests) respectively for memory blocks or 
     for files. Also handles host endianness properly. See radsha.h for usage 
     and the SHA test program in test/sha for an example implementation.

3)   Added CRC16 and CRC32 (CCITT) generation utilities. See radcrc.h for
     details and usage.




2.3.0     10-11-2005
--------------------

1)   Added UDP datagram socket support including broadcast and multicast. 
     See radUDPsocket.h for details. Added documentation in the API reference.
     See test/multicast for an example multicast test program.

2)   Added the "raddebug" CLI utility to attach to a running radlib system and 
     dump buffer and semaphore usage information. Found in the debug directory 
     of the distro, just execute make then run the executable "raddebug" on 
     the radlib system via "./raddebug [radlib_system_id]".

3)   Cleaned up radBuffersDebug output some for use by the raddebug process.

4)   Changed radSystemInit so the system up time isn't reset every time a new 
     process attaches to it.




2.2.6     10-04-2005
--------------------

1)  Source code clean up and formatting. 




2.2.5     09-05-2005
--------------------

1)  Changed some database field processing to comply with the postgresql 
    changes made in version 8.




2.2.4     08-13-2005
--------------------

1)  Removed SO_SNDLOWAT and SO_RCVLOWAT configuration as it does not appear to 
    work correctly on some flavors of linux.

2)  Fixed a few compiler warnings.




2.2.3     07-26-2005
--------------------

1)  Removed inclusion of "sys/select.h" from radsocket.c - some flavors of BSD 
    do not like it.




2.2.2     07-14-2005
--------------------

1)  Moved radlib to a BSD licensing model instead of GPL. Now radlib can be 
    incorporated in proprietary designs freely with no license obligations 
    other than inclusion of the BSD-style licensing notice found in the file 
    "COPYING". radlib is now completely free. Hopefully SourceForge will allow 
    me to change the project name to "radlib" from "radlib-gpl" soon...

2)  Updated the radlib API Reference to include recent additions of PostgreSQL 
    support and the TCP socket API.

3)  Changed the radSocketClientCreate function to explicitly set non-blocking 
    IO during connects so the connect can be timed out properly. The socket 
    is set back to blocking mode (the default) after the connection succeeds.





2.2.1     06-26-2005
--------------------

1)  Added a few "setsockopt" calls to client socket creation to make the 
    default client socket more responsive.





2.2.0     06-14-2005
--------------------

1)  Added optional PostgreSQL database interface support. Wrappers libpq.a
    client library with a logical yet simple API (see raddatabase.h). Can be
    ported to other relational databases as the PostgreSQL-specific code is 
    segregated in .../database/postgresql/pg_database.c. Enabled in radlib by 
    using the "--enable-pgresql" argument to the configure script. Requires an 
    installed/configured/running PostgreSQL server and the matching libpq
    library and headers (see README file for more details).

2)  Removed a few legacy log messages during radProcessInit and the infamous 
    "dummyChild: no writers to reflector pipe - closing it!" message when 
    the process queue is closed.




2.1.0     06-06-2005
--------------------

1)  Added TCP stream socket support. See radsocket.h for details.

2)  Added "radDEBUGLog" support to raddebug.[ch].




2.0.1     05-30-2005
--------------------

1)  Changed how the config file utility handles file locks so it works better
    when multiple processes are accessing the same file.




2.0.0     4-23-2005
--------------------

1)  Added optional MySQL database interface support. Wrappers libmysqlclient.a
    client library with a logical yet simple API (see raddatabase.h). Can be
    ported to other relational databases as the MySQL-specific code is 
    segregated in .../database/mysql/my_database.c. Enabled in radlib by using 
    the "--enable-mysql" argument to the configure script. Requires an 
    installed/configured/running MySQL server and the matching libmysqlclient
    library and headers (see README file for more details).

2)  Updated the radlib API Reference Manual to reflect recent additions.

3)  Added an example database program to demo the radlib database API - it 
    is databaseExample.c in the template directory and can be built and 
    run from there (see the README file for details).

4)  Fixed a few build nuisances in the template example.




1.4.2     2-27-2005
--------------------

1)  Fixed "radSystemGetUpTimeSEC" and "radSystemGetUpTimeSTR" so that they 
    use seconds since the EPOCH instead of milliseconds since the EPOCH - 
    this was causing the system up time to roll over after ~49 days.
    
2)  Added the utility function "radTimeGetSECSinceEpoch" to support
    storing the system start time in both milliseconds since the EPOCH
    and seconds since the EPOCH.




1.4.1     12-14-2004
--------------------

1)  Added an example cross compilation script for the arm-linux target.

2)  Tweaked the build environment to support cross compilation. See
    the example configure script "config-radlib-arm-linux" for a usage
    example.




1.4.0     11-30-2004
--------------------

1)  Converted radlib to the GNU autoconf/automake paradigm.
    
    Now the package is built as follows:
    #./configure
    #make
    #make install

    The library and headers are installed in /usr/local/bin 
    and /usr/local/include by default, although the prefix 
    (/usr/local) can be changed when "configure" is invoked.
    
    make.config, rules.make, and Makefile has been removed from
    the distro. The "configure" script generates the build files
    based on the host platform.

2)  Removed BSD precompilation check for sem set size and
    defaulted it to 16.



1.3.2     11-21-2004
--------------------

1)  Added the file "make.config" and changed the build environment to
    utilize it.  Linux or BSD can now be specified as well as the 
    install location of the library and headers.

2)  Fixed several trivial problems with building on a BSD platform.

3)  Modified events processing so that processes can send events to 
    themselves.

4)  Added a "pkg" target to the makefile and the file "excludefiles"
    so that the distro tarball can be built automagically.


            
1.3.1     04-03-2004
--------------------

1)  Added system up time support. When the first process of a radlib system
    group calls radSystemInit, the start time is stored. From that point 
    forward, any process in the radlib system can retrieve the system up
    time in one of 3 ways:
        radSystemGetUpTimeMS: returns number of milliseconds since start
        radSystemGetUpTimeSEC: returns number of seconds since start
        radSystemGetUpTimeSTR: returns an up time string of the form
            "Y years, M months, D days, H hours, m minutes, S seconds".



1.3.0     02-08-2004
--------------------

1)  First release of GPL version of radlib.