mysql backend wasn't locking tracker

Author: Richard Jones

CHANGES.txt

@@ -1,6 +1,11 @@
 This file contains the changes to the Roundup system over time. The entries
 are given with the most recent entry first.
 
+2004-05-17 0.6.10
+Fixed:
+- mysql backend wasn't locking tracker
+
+
 2004-04-18 0.6.9
 Fixed:
 - paging in classhelp popup was broken

doc/announcement.txt

@@ -1,16 +1,13 @@
-I'm pleased to announce Roundup 0.6.9, a maintenance release which fixes
-some bugs:
+I'm pleased to announce Roundup 0.6.10, a maintenance release which fixes
+a single bug in the MySQL backend:
 
-- paging in classhelp popup was broken
-- socket timeout error logging can fail
-- hyperlink designators in message display (sf bug 931828)
-- don't match retired items in RDBMS stringFind
+- mysql backend wasn't locking tracker
 
 If you're upgrading from an older version of Roundup you *must* follow
 the "Software Upgrade" guidelines given in the maintenance documentation.
 
 Note that the Zope interface still doesn't work - it is fixed in the 0.7
-development codebase.
+release.
 
 Roundup requires python 2.1.3 or later for correct operation. Python 2.3.1
 or later is strongly recommended.

roundup/__init__.py

@@ -15,7 +15,7 @@
 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
 # 
-# $Id: __init__.py,v 1.25.2.9 2004-04-18 06:38:22 richard Exp $
+# $Id: __init__.py,v 1.25.2.10 2004-05-17 00:47:29 richard Exp $
 
 ''' Roundup - issue tracking for knowledge workers.
 
@@ -67,6 +67,6 @@
 much prettier cake :)
 '''
 
-__version__ = '0.6.9'
+__version__ = '0.6.10'
 
 # vim: set filetype=python ts=4 sw=4 et si

roundup/backends/back_mysql.py

@@ -84,6 +84,13 @@ def open_connection(self):
         if not db_exists(self.config):
             db_create(self.config)
 
+        # lock the tracker
+        dbdir = os.path.join(self.config.DATABASE, 'db')
+        lockfilenm = dbdir[:-3] + 'lck'
+        self.lockfile = locking.acquire_lock(lockfilenm)
+        self.lockfile.write(str(os.getpid()))
+        self.lockfile.flush()
+
         db = getattr(self.config, 'MYSQL_DATABASE')
         try:
             self.conn = MySQLdb.connect(*db)

setup.py

@@ -16,7 +16,7 @@
 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
 # 
-# $Id: setup.py,v 1.55.2.11 2004-04-18 06:38:22 richard Exp $
+# $Id: setup.py,v 1.55.2.12 2004-05-17 00:47:28 richard Exp $
 
 from distutils.core import setup, Extension
 from distutils.util import get_platform
@@ -188,11 +188,9 @@ def main():
 command-line, web and e-mail interfaces. It is based on the winning design
 from Ka-Ping Yee in the Software Carpentry "Track" design competition.
 
-The 0.6.9 release fixes some bugs:
-- paging in classhelp popup was broken
-- socket timeout error logging can fail
-- hyperlink designators in message display (sf bug 931828)
-- don't match retired items in RDBMS stringFind
+The 0.6.10 release fixes some bugs:
+
+- mysql backend wasn't locking tracker
 ''',
         author = "Richard Jones",
         author_email = "[email protected]",