Revision history for Perl extension CDB_File.

1.02 - Todd Rinaldo <toddr@cpan.org> 2020-01-29
    - Invoke new as a class method in docs and practice.
    - Add support for COW PVs when returning key values. This will hopefully
      deduplicate returned strings where possible.
    - Adjust tests to skip exists tests on 5.8.1, not 5.6.2
    - Optimize cdb_hashadd as a inline macro
    - Croak if atomic re-write from the temp to the final file fails.

1.01 - Todd Rinaldo <toddr@cpan.org> 2020-01-27
    - Fix MANIFEST so Changelog is shpped.
    - Address file descriptor leak in CDB_File.

1.00 - Todd Rinaldo <toddr@cpan.org> 2020-01-19
    - Enable github actions for automated testing
    - Switch to github issues.

0.99 - J. Nick Koston <bdraco@cpan.org> 2016-07-16
    - Add a fetch_all function for 1:1 hash mapping

0.98 - Todd Rinaldo <toddr@cpan.org> 2015-06-30
    - Replace use vars with our (deprecated since 5.6.0)
    - Switch from Dynaloader to XSLoader as it's known to be a lower memory profile module.

0.97_01 - Todd Rinaldo <toddr@cpan.org> 2011-04-05
    - Put ppport.h back in with an updated version.
    - ppport.h warnings now indicate that the module is not perl 5.6 compatible,
      but the test suite continues to succeed there. p5p suggests dropping support
      for 5.6

0.97 - Todd Rinaldo <toddr@cpan.org> 2011-04-05
    - CPAN testers looks relativley clean. Publishing a stable version.

0.96_02 - Todd Rinaldo <toddr@cpan.org> 2011-04-03
    - Perl 5.6 doesn't warn about $x{undef}. Skip this test for 5.6

0.96_01 - Todd Rinaldo <toddr@cpan.org> 2011-04-01
    - Remove ppport.h from distro on reccommendation from ppport.h
    - Remove C99 style code from CDB_File to allow GCC 2.95 compilers to work
    - Modernize Makefile.PL and require Test::More
    - Update tests to use Test::More
    - Fix makefile - {'d_mmap'}  isn't always defined
    - Cleanup temp files during testing
    - Untie before file removal so windows doesn't block the removal

0.96
    - Fix for compiling under stricter compilers

0.95
    - Support passing multiple key/value pairs to ->insert() for performance
      when building CDBs.

0.94
    - Made work on perl 5.8.1
    - Added some notes about performance

0.93
    - Switched to allocating memory on the heap. I have no idea how the
      previous scheme worked at all. It should have fallen over everywhere.
    - Fixed a bug where you re-tie the same hash and CDB_File complains
      about calling NEXT before calling FIRST.

0.92
	- Fixed major set of leaks in both memory and filehandles
	- Change of ownership to Matt Sergeant

0.91 2001-12-18
	- fix memory leak (thanks MJP)
	- document and test that multi_get returns ref to empty hash
	- beta release

0.86 2001-05-25
	- add handle, datalen, and datapos methods for low level access
	- simplify multi_get, and remove a memory leak
 	- document need to destroy extra references
	- open files in binary mode (thanks IW)
	- use mmap() (thanks RDW)
	- beta release

0.85 2001-02-06
	- multi_get now works during each (thanks MdlR)
	- move multi_get to CDB_File.xs, remove dumb O(n*n), and fix bug
	- don't make the database files read-only (thanks FL)
	- beta release

0.84 2000-11-21
	- backwards compatibility with perl-5.005 (thanks BD)
	- EPROTO not available everywhere (thanks BD); EFTYPE preferred
	- beta release

0.83 2000-11-03
	- fix stupid typo
	- beta release

0.82 2000-05-30
	- fix bug in `each', introduced in 0.81
	- beta release

0.81 2000-05-12
	- port to perl 5.6.0
	- cdb code derived from cdb-0.75
	- cdb code incorporated into CDB_File.xs
	- multi_get works even for non-adjacent keys
	- fetching values in order from previously obtained keys array works
	- use perlapio

0.8 1999-09-08
	- fix bug with undefined keys / values (thanks CMC, JPB)
	- beta release

0.7 1997-10-20
	- use Perl's Strerror instead of strerror
	- fix bogus warning in multi_get (thanks MdlR)
	- fix bug with empty values (thanks RDM)
	- don't fail test 6 if run as root (thanks MP, JB)
	- alpha release

0.6 1997-03-25
	- fix unsigned off_t bug
	- fix version number confusion
	- propagate Perl's idea of CC and LD to cdb (thanks IP, SB)
	- use safe cdb_bread() in preference to read() (thanks MdlR)
	- object is now a scalar again, containing struct cdbobj
	- support repeated keys (thanks MdlR)
	- split create into new, insert, finish
	- optimize FETCH and NEXTKEY
	- support building as a static extension
	- PERLIO_NOT_STDIO so it works with useperlio defined (thanks AK, NMS)
	- add multi_get method (thanks MdlR)
	- fix some core dumps (thanks MdlR)
	- make cdb object read only (thanks MdlR)
	- alpha release

0.5 1997-02-12
	- fix order of @ISA, so imports work
	- alpha release

0.4 1997-02-06
	- iteration (FIRSTKEY, NEXTKEY) added
	- "pre-alpha" release

0.3 1997-01-28
	- no longer dependent on cdbmake
	- CDB_File::cdbm removed
	- temporary file name no longer optional
	- "pre-alpha" release

0.2 1997-01-14
	- first "pre-alpha" release

0.1 1997-01-08
	- original version; created by h2xs 1.16