Revision history for Cache

1.06 in progress

• updated the project homepage and added notes about the CHI project
• fixed extra "use vars" in CacheUtils

1.05 2006-05-26

• fixed infinite loop with auto_purge_on_get
• fixed directory paths on Windows partitions
• NullCache uses BaseCache

1.04 2005-03-17-11-23

• release version 1.04
• repair permissions on temp cache files

1.03 2004-10-04-11-23

• release version 1.03
• modified the FileBackend to use the more robust File::Temp
• "officially" recommend FileCache over SharedMemoryCache
• added more robust error checking for shared memory caches
• added a check for invalid frozen data
• added $1 to all error messages

1.02 2003-04-15-10-41

• released version 1.02
• require Digest::SHA1 2.02, optionally IPC::ShareLite 0.09
• use Storable's "nfreeze" instead of "freeze"
• added notes on locking and Storable to the README
• updated documentation on expiration units
• modified the quoting of the untainted path regex
• fixed the duplicated get_keys in NullCache
• applied patch to ensure consistent state if the filesystem fills up
• applied patch to ensure initialization of the memory cache hash

1.01 2002-04-14-01-30

• released version 1.01
• switched to Digest::SHA1
• updated copyright dates

1.0 2002-04-06-18-51

• released version 1.0
• localized scope of global file and directory handles (FILE and DIR)
• applied Jonathan Swartz's patch for a much better untainting regex
• changed UntaintString to throw an exception on a taint
• further improved the fix to prevent race conditions that caused the tests to fail
• exposed the get_namespaces method on Cache
• fixed the failing Win32 tests caused by fileglobs in Makefile.PL
• applied Yves Orton's patch in MakePath to fix warnings on Win32

0.99 2001-12-09-18-45

• released version 0.99
• major refactoring of code
• replaced non-standard usage of SUCCESS and FAILURE with Error.pm
• replaced non-standard usage of TRUE and FALSE with 1 and 0
• migrated from the term "identifier" to the more standard term "key" and marked the old public methods with identifier as deprecated
• broke out the MemoryBackend, FileBackend, SharedMemoryBackend into distinct and reusable classes
• fixed a long outstanding bug in the unit tests that made working caches appear to fail
• changed the meaning of object and cache size for file system based caches to consistently reflect the total size of the objects on disk, but not including the directory overhead
• changed format of persisted data in the FileBackend
• major rewrite of documentation

0.09 2001-09-10-12-10

• released version 0.09
• applied Axel Beckert patch to fix the expiration units
• applied Ken Williams's directory creation patch to pass all tests
• changed the license to be either the GPL or the Artistic license
• added Jay Sachs' implementation of NullCache
• modified the remove methods to avoid croaking if two cache instances are both purging or limiting at the same time
• migrated to a factory-like model with private constructors to fix the auto_purge_interval functionality
• updated the documentation to better reflect that size means size in bytes
• started version 0.09

0.08 2001-04-26-08-53

• released version 0.08
• renamed the auto_purge option to auto_purge_interval
• added the auto_purge_on_set and auto_purge_on_get options
• moved the Auto_Purge and Reset_Auto_Purge methods to BaseCache as the instance methods autopurge and resetauto_purge
• added the auto_purge option and property to the base cache interface and implementations. This option will call the purge method on the cache after the specified interval expires
• renamed setnamespace to set_namespace (i.e., made it public)
• added the set_object method to the cache interface
• updated the test scripts and CREDITS file
• updated the perldoc formatting to look better in HTML
• removed the $VERSION from SizeAwareCache
• started version 0.08

0.07 2001-03-27-08-55

• released version 0.07
• prepared for initial CPAN release
• improved Cache::Cache documentation
• removed last "use IPC::Shareable"
• added support in the Makefile.PL to conditionally build the SharedMemoryCache, which requires IPC::ShareLite, and thus runs only on certain architectures. Also broke out the IPC related routines into the SharedCacheUtils package.
• started version 0.07

0.06 2001-03-23-08-36

• release version 0.06
• added the get_identifiers method to the Cache interface, implemented the method for all classes, added a new test, and updated the test scripts
• added the size property to Object
• added the _freeze and thaw methods to the BaseCache class and modified all children classes to use them
• revert to separate freeze and thaws on the memory based caches to ensure that cached data isn't modified at any time
• major rewrite of the size aware cache logic
• added the CacheMetaData class, which is used to efficiently keep track of a size aware cache state
• refactored the instance specific limitsize routines into the generic Limit_Size method in CacheUtils
• updated the size aware cache implementations to use the CacheMetaData and Limit_Size methods
• improved the SizeAwareCacheTester and updated the test scripts
• removed unnecessary clone call from the SharedMemoryCache and the SizeAwareSharedMemoryCache
• added exclusive locking on the shared cache for operations that will both read and write to the cache
• replaced the cache_hash_ref instance property in MemoryCache with a class property and updated the SharedMemoryCache and SizeAwareSharedMemoryCache modules accordingly
• started version 0.06

0.05 2001-03-20-10-25

• released version 0.05
• updated Storable dependency to 1.011
• replaced the IPC::Shareable backend with IPC::ShareLite
• started version 0.05

0.04 2001-03-17-10-43

• released version 0.04
• replaced Data::Dumper with Storable, which is now a requirement
• implemented the SizeAwareMemoryCache and associated tests
• implemented the SizeAwareSharedMemoryCache and associated tests
• added the SizeAwareCache interface
• moved max_size logic from the _store method to the set method
• started version 0.04

0.03 2001-03-10-12-40

• released version 0.03
• made the FileCache more multi-user friendly by allowing a more permissive default directory umask, which can also be optionally overridden
• updated documentation and code style
• completely rewrote and improved the limit_size method for a major performance gain
• updated the syntax for expiration times to include the [number] [unit] format, e.g. "10 seconds"
• added the get_object method to the Cache interface, which allows access to the underlying cache object (without potentially expiring the object)
• added the get_namespace and get_default_expires_in methods to the Cache interface definition
• updated the MANIFEST
• checked in preliminary cache benchmarking code
• fixed bug fixed bug #406030 -- default_expires_in never invoked
• refactored common code into BaseCache
• use Static_Params method
• fixed default_expires_in bug
• added coding guidelines to STYLE
• started version 0.03

0.02 2001-02-15-21-12

• released version 0.02
• added perldoc to SizeAwareFileCache
• created SizeAwareFileCache
• added the SizeAwareCacheTester module
• refactored common test code into the AbstractCacheTester module
• added the Recursively_List_Files_With_Paths routine to CacheUtils
• marked the FileCache and MemoryCache as ISA Cache::Cache
• updated the MANIFEST
• started version 0.02

0.01 2001-02-13-16-16

• released version 0.01
• implemented Get_Temp_Dir to make the FileCache root more OS independent
• started version 0.01