initial commit
This commit is contained in:
Massimo Di Pierro
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Thu, 02 Apr 2009 13:37:49 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.44
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* Allowing spaces in the key. (Patch provided by xmm on Launchpad)
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* Detecting when the pickler needs a positional argument. (Patch
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provided by Brad Clements on Launchpad)
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* Moving length check after the compression. (Patch provided by user
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Tom on Launchpad)
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* Fixing arguments passed to the _Error if invalid read length.
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* Fixing the representation of domain sockets. (Patch provided by user
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MTB on Launchpad)
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* Changing a typo of dead_until. (Patch provided by Shane R. Spencer)
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* Providing better error messages (patch provided by Johan Euphrosine).
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* Adding get_slabs() function to get stats. (Patch provided
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by Nick Verbeck)
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Sun, 01 Jun 2008 15:05:11 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.43
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* eliott reported a bug in the 1.42 related to the socket timeout code
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causing a traceback due to the timeout value not being set.
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Sat, 31 May 2008 02:09:17 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.42
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* Paul Hummer set up a Launchpad project which I'm going to start using
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to track patches and allow users to set up their own bzr branches and
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manage marging in the upstream patches with their own.
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https://launchpad.net/python-memcached
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* Patch from Jehiah Czebotar which does: Changing the calls to
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mark_dead() to make them dereference tuples, reducing timeout on
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sockets to 3 seconds, settable via setting Host._SOCKET_TIMEOUT.
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* Patches from Steve Schwarz for set_multi() to return the full set of
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keys if all servers are down. Previously would not report any keys.
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* Fix from Steve Schwarz delete_multi() argument "seconds" not being
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correctly handled. Changed it to "time" to match all other calls.
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* Patch from Peter Wilkinson to support using unix domain sockets.
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He reports that tests succeed with with memcached daemons running,
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the normal and a domain socket started via
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"memcached -s memcached.socket". I massaged it quite a bit.
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To use domain sockets, use a connect string of "unix:/path/to/socket"
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Note however that if you are using a host name of "unix", it will now
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detect "unix:11211" as being a domain socket with the name "11211".
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In this case, please use "inet:unix:11211".
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Because of this, it is now preferred to use a connect string prefix
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of "inet:" or "unix:".
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Tue, 29 Apr 2008 21:03:53 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.41
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* Patch from Jehiah Czebotar to catch an additional server disconnect
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situation.
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* Patch from Andrey Petrov to add the "append" and "replace" commands.
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Tue, 18 Sep 2007 20:52:09 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.40
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* Updated setup.py file that uses distutils provided by Kai Lautaportti.
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* Prevent keys from containing ASCII character 127 as well, patch provided
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by Philip Neustrom.
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* Added ability to overload the persistent_load/id, patch provided by
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Steve Schwarz.
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* Fixed ability to pass (server_hash,key) in place of key in Client.set()
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Reported by Alexander Klyuev.
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Tue, 14 Aug 2007 14:43:27 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.39
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* Michael Krause reports the previous version doesn't work for
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_val_to_store_info() calls because it's defined as a staticmethod.
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Removing staticmethod decorator. Also confirmed by Kai Lautaportti,
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with suggested fix of removing staticmethod.
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Fri, 10 Aug 2007 17:50:13 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.38
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* Matt McClanahan submitted a patch that allow add() to have a
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min_compress_len argument.
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* Steve Schwarz submitted a patch allowing user-defined picklers.
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* Michael Krause suggested checking the return value to prevent an
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exception from being raised in _set() when a value is too large to be
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stored.
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Fri, 27 Jul 2007 01:55:48 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.37
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* Fixing call from add() to _set() with parameter for min_compress_len.
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Reported by Jeff Fisher.
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Thu, 07 Jun 2007 04:10:31 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.36
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* Patch by Dave St.Germain to make the Client() class sub-class
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threadlocal to help with multi-threading issues. Only available in
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Python 2.4 and above.
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* Patch by James Robinson with:
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1) new set_multi method.
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2) factored out determining the flags, length, and value to store
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from set() into method _val_to_store_info() for use by both set()
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and set_multi().
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3) send_cmds() method on host which doesn't apply the trailing '\r\n'
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for use by set_multi.
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4) check_key() extended a bit to allow for testing the prefix passed
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to set_multi just once, not once per each key.
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5) Patch also enables support for auto compression in set, set_multi,
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and replace.
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* Suggestion by Helge Tesdal, fixes in check_key for non-string keys.
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* NOTE: On a farm of clients with multiple servers, all clients will
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need to be upgraded to this version. The next patch changes the
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server hash.
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* Philip Neustrom supplied a patch to change the server hash function to
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binascii.crc32. The original "hash()" call is not cross-platform, so
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big and little endian systems accessing the same memcache may end up
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hitting different servers. Restore the old functionality by calling:
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"memcached.serverHashFunction = hash" after importing memcache.
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* Philip Neustrom points out that passing Unicode keys or values causes
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problems because len(key) or len(value) is not equal to the number of
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bytes that are required to store the key/value. Philip provides a
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patch which raises an exception in this case. Raises
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memcache.Client.MemcachedStringEncodingError exception in this case.
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* NOTE: If you recompiled memcached to increase the default 1MB max
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value size, you will need to call "memcached.MAX_SERVER_VALUE_LENGTH = N"
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or memcached will not store values larger than the default 1MB.
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* Philip Neustrom includes another patch which checks that the key
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doesn't exceed the memcache server's max size. If it does, the item
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is silently not stored.
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* Philip Neustrom added a bunch of sanity checks.
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* Jehiah Czebotar provided a patch to make the add() and replace()
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functions return 0 when the add or replace fails, similar to how set()
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works.
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Sat, 16 Sep 2006 18:31:46 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.34
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* In get_multi, if the recv loop reads 0 bytes, raising an EOFError.
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Identified by Jim Baker.
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Tue, 05 Sep 2006 14:06:50 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.33
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* Including patch from Yoshinori K. Okuji to read in larger chunks for
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readline() calls. This should dramatically improve performance under
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some circumstances.
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Sun, 03 Sep 2006 14:02:03 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.32
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* Including patch from Philip Neustrom which checks keys sent to the
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server for length and bad characters.
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Sat, 20 May 2006 14:51:28 -0600 Sean Reifschneider <jafo@tummy.com>
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* Version 1.31
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* Rolled version 1.30 since the Danga folks are now listing this
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version as the official version. Removing the "tummy" from the version
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number, and incrementing so that it's clear it's more recent than "1.2".
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* Patch applied from Simon Forman for handling of weighted hosts.
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* Added a little more meat to the README.
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Sat, 28 Jan 2006 15:59:50 -0700 Sean Reifschneider <jafo@tummy.com>
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* cludwin at socallocal suggested that the write-combining with
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sendall() may not be beneficial. After testing on both SMP and non-SMP
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machines, I can't see a significant benefit to not doing the
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write-combining, even on large strings. The benefits of write-combining
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on smaller strings seems to be significant on UP machines in tight loops.
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Even on strings that are larger than 2MB, there seems to be no benefit to
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splitting out the writes.
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Sun, 18 Sep 2005 18:56:31 -0600 Sean Reifschneider <jafo@tummy.com>
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* Changing a printf to debuglog and catching a pickle exception, patch
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submitted by Justin Azoff.
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Thu, 14 Jul 2005 11:17:30 -0700 Sean Reifschneider <jafo@tummy.com>
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* Alex Stapleton found that the sendall call was slow for writing data
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larger than several kilobytes. I had him test a change to his patch,
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which worked as well, but was simpler. The code now does two sendall
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calls, one for the data and one for the line termination, if the data is
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larger than 100 bytes.
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Thu, 7 Apr 2005 14:45:44 -0700 Sean Reifschneider <jafo@tummy.com>
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* Incorporating some fixes to get_multi() from Bo Yang
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Mon, 13 Dec 2004 02:35:17 -0700 Sean Reifschneider <jafo@tummy.com>
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* Simplifying the readline() function and speeding it up ~25%.
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* Fixing a bug in readline() if the server drops, mark_dead() was not
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being properly called.
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Sun, 12 Dec 2004 18:56:33 -0700 Sean Reifschneider <jafo@tummy.com>
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* Adding "stats()" and "flush_all()" methods.
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Thu, 10 Aug 2003 12:17:50 -0700 Evan Martin <martine@danga.com>
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* Slightly more verbose self-test output.
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* Fix mark_dead() to use proper classname.
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* Make pooltest.py run from the test directory.
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Thu, 07 Aug 2003 16:32:32 -0700 Evan Martin <martine@danga.com>
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* Add incr, decr, and delete.
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* Better Python (based on comments from Uriah Welcome).
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* Docs, using epydoc.
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Thu, 07 Aug 2003 14:20:27 -0700 Evan Martin <martine@danga.com>
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* Initial prerelease.
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@@ -0,0 +1,10 @@
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Metadata-Version: 1.0
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Name: python-memcached
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Version: 1.44
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Summary: A Python memcached client library.
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Home-page: http://www.danga.com/memcached/
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Author: Evan Martin
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Author-email: martine@danga.com
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License: Python
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Description: A Python memcached client library.
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Platform: UNKNOWN
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@@ -0,0 +1,7 @@
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This package was originally written by Evan Martin of Danga.
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Sean Reifschneider of tummy.com, ltd. has taken over maintenance of it.
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This software is a 100% Python interface to the memcached memory cache
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daemon. It is the client side software which allows storing values in one
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or more, possibly remote, memcached servers. Search google for memcached
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for more information.
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@@ -0,0 +1,89 @@
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from gluon.contrib.memcache.memcache import Client
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from gluon.cache import CacheAbstract
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import time
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"""
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examle of usage:
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cache.memcache = MemcacheClient(request,[127.0.0.1:11211],debug=true)
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"""
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import cPickle as pickle
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import thread
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locker = thread.allocate_lock()
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def MemcacheClient(*a, **b):
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locker.acquire()
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try:
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if not hasattr(MemcacheClient, '__mc_instance'):
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MemcacheClient.__mc_instance = _MemcacheClient(*a, **b)
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finally:
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locker.release()
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return MemcacheClient.__mc_instance
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class _MemcacheClient(Client):
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meta_storage = {}
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def __init__(self, request, servers, debug=0, pickleProtocol=0,
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pickler=pickle.Pickler, unpickler=pickle.Unpickler,
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pload=None, pid=None):
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self.request=request
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if request:
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app = request.application
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else:
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app = ''
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Client.__init__(self, servers, debug, pickleProtocol,
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pickler, unpickler, pload, pid)
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if not app in self.meta_storage:
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self.storage = self.meta_storage[app] = {
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CacheAbstract.cache_stats_name: {
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'hit_total': 0,
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'misses': 0,
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}}
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else:
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self.storage = self.meta_storage[app]
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def __call__(self, key, f, time_expire=300):
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if time_expire == None:
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time_expire = 10**10
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# this must be commented because get and set are redefined
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# key = self.__keyFormat__(key)
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value = None
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obj = self.get(key)
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if obj:
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value = obj
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elif f is None:
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if obj: self.delete(key)
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else:
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value = f()
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self.set(key, value, time_expire)
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return value
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def increment(self, key, value=1, time_expire=300):
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newKey = self.__keyFormat__(key)
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obj = Client.get(self, newKey)
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if obj:
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return Client.incr(self, newKey, value)
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else:
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Client.set(self, newKey, value, time_expire)
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return value
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def set(self, key, value, time_expire=300):
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newKey = self.__keyFormat__(key)
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return Client.set(self, newKey, value, time_expire)
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def get(self, key):
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newKey = self.__keyFormat__(key)
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return Client.get(self, newKey)
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def delete(self, key):
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newKey = self.__keyFormat__(key)
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return Client.delete(self, newKey)
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def __keyFormat__(self, key):
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return '%s/%s' % (self.request.application, key.replace(' ', '_'))
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