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Rewrote autoremove flag workaround

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svn: r15795
This commit is contained in:
Doug Blank 2010-08-22 06:33:06 +00:00
parent c14fbafd25
commit 7151e07d3a
1 changed files with 17 additions and 22 deletions
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35
src/gen/db/write.py
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@ -1589,7 +1589,7 @@ class DbBsddb(DbBsddbRead, DbWriteBase, UpdateCallback):
@catch_db_error
def transaction_commit(self, transaction, msg):
if self._LOG_ALL:
LOG.debug("%s: Transaction commit '%s'\n"
_LOG.debug("%s: Transaction commit '%s'\n"
% (self.__class__.__name__, str(msg)))
if self.readonly:
@ -1662,25 +1662,20 @@ class DbBsddb(DbBsddbRead, DbWriteBase, UpdateCallback):
"""
BSDDB change log settings using new method with renamed attributes
"""
if db.version() < (4, 7):
# by the book: old method with old attribute
self.env.set_flags(db.DB_LOG_AUTOREMOVE, 1)
else: # look at python interface
# TODO test with new version of pybsddb
try:
# try numeric compare, just first 2 digits
# this won't work with something like "4.10a", but
# hopefully they won't do that
old_version = map(int, db.__version__.split(".",2)[:2]) < (4, 7)
except:
# fallback, weak string compare
old_version = db.__version__ < "4.7"
if old_version:
# undocumented: old method with new attribute
self.env.set_flags(db.DB_LOG_AUTO_REMOVE, 1)
autoremove_flag = None
autoremove_method = None
for flag in ["DB_LOG_AUTO_REMOVE", "DB_LOG_AUTOREMOVE"]:
if hasattr(db, flag):
autoremove_flag = getattr(db, flag)
break
for method in ["log_set_config", "set_flags"]:
if hasattr(self.env, method):
autoremove_method = getattr(self.env, method)
break
if autoremove_method and autoremove_flag:
autoremove_method(autoremove_flag, 1)
else:
# by the book: new method with new attribute
self.env.log_set_config(db.DB_LOG_AUTO_REMOVE, 1)
_LOG.debug("Failed to set autoremove flag")
def write_version(self, name):
"""Write version number for a newly created DB."""
@ -1702,7 +1697,7 @@ class DbBsddb(DbBsddbRead, DbWriteBase, UpdateCallback):
db.DB_INIT_LOG | db.DB_INIT_TXN | db.DB_THREAD
# As opposed to before, we always try recovery on databases
env_flags = env_flags | db.DB_RECOVER
env_flags |= db.DB_RECOVER
# Environment name is now based on the filename
env_name = name