Mercurial > p > roundup > code
diff roundup/hyperdb.py @ 719:fed4c363a7f3
node caching now works, and gives a small boost in performance
As a part of this, I cleaned up the DEBUG output and implemented TRACE
output (HYPERDBTRACE='file to trace to') with checkpoints at the start of
CGI requests. Run roundup with python -O to skip all the DEBUG/TRACE stuff
(using if __debug__ which is compiled out with -O)
| author | Richard Jones <richard@users.sourceforge.net> |
|---|---|
| date | Wed, 15 May 2002 06:21:21 +0000 |
| parents | 509a101305da |
| children | b0d887310f7a |
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--- a/roundup/hyperdb.py Wed May 15 03:27:16 2002 +0000 +++ b/roundup/hyperdb.py Wed May 15 06:21:21 2002 +0000 @@ -15,19 +15,35 @@ # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE, # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. # -# $Id: hyperdb.py,v 1.63 2002-04-15 23:25:15 richard Exp $ +# $Id: hyperdb.py,v 1.64 2002-05-15 06:21:21 richard Exp $ __doc__ = """ Hyperdatabase implementation, especially field types. """ # standard python modules -import re, string, weakref, os +import re, string, weakref, os, time # roundup modules import date, password +# configure up the DEBUG and TRACE captures +class Sink: + def write(self, content): + pass DEBUG = os.environ.get('HYPERDBDEBUG', '') +if DEBUG and __debug__: + DEBUG = open(DEBUG, 'a') +else: + DEBUG = Sink() +TRACE = os.environ.get('HYPERDBTRACE', '') +if TRACE and __debug__: + TRACE = open(TRACE, 'w') +else: + TRACE = Sink() +def traceMark(): + print >>TRACE, '**MARK', time.ctime() +del Sink # # Types @@ -175,7 +191,8 @@ '''Copy the node contents, converting non-marshallable data into marshallable data. ''' - if DEBUG: print 'serialise', classname, node + if __debug__: + print >>DEBUG, 'serialise', classname, node properties = self.getclass(classname).getprops() d = {} for k, v in node.items(): @@ -206,7 +223,8 @@ def unserialise(self, classname, node): '''Decode the marshalled node data ''' - if DEBUG: print 'unserialise', classname, node + if __debug__: + print >>DEBUG, 'unserialise', classname, node properties = self.getclass(classname).getprops() d = {} for k, v in node.items(): @@ -1127,6 +1145,12 @@ # # $Log: not supported by cvs2svn $ +# Revision 1.63 2002/04/15 23:25:15 richard +# . node ids are now generated from a lockable store - no more race conditions +# +# We're using the portalocker code by Jonathan Feinberg that was contributed +# to the ASPN Python cookbook. This gives us locking across Unix and Windows. +# # Revision 1.62 2002/04/03 07:05:50 richard # d'oh! killed retirement of nodes :( # all better now...