Sync from oslo-incubator
This patch is intended to bring in `config.generator`. It also syncs Marconi's modules to the latest oslo-incubator version for the sake of being up-to-date. Change-Id: I9cd3ccf0ce509349d561132025add42dec83ca0a
This commit is contained in:
parent
356540df55
commit
bad264dad9
@ -0,0 +1,17 @@
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
||||
# not use this file except in compliance with the License. You may obtain
|
||||
# a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
# License for the specific language governing permissions and limitations
|
||||
# under the License.
|
||||
|
||||
import six
|
||||
|
||||
|
||||
six.add_move(six.MovedModule('mox', 'mox', 'mox3.mox'))
|
0
marconi/openstack/common/config/__init__.py
Normal file
0
marconi/openstack/common/config/__init__.py
Normal file
302
marconi/openstack/common/config/generator.py
Normal file
302
marconi/openstack/common/config/generator.py
Normal file
@ -0,0 +1,302 @@
|
||||
# Copyright 2012 SINA Corporation
|
||||
# Copyright 2014 Cisco Systems, Inc.
|
||||
# All Rights Reserved.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
||||
# not use this file except in compliance with the License. You may obtain
|
||||
# a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
# License for the specific language governing permissions and limitations
|
||||
# under the License.
|
||||
#
|
||||
|
||||
"""Extracts OpenStack config option info from module(s)."""
|
||||
|
||||
from __future__ import print_function
|
||||
|
||||
import argparse
|
||||
import imp
|
||||
import os
|
||||
import re
|
||||
import socket
|
||||
import sys
|
||||
import textwrap
|
||||
|
||||
from oslo.config import cfg
|
||||
import six
|
||||
import stevedore.named
|
||||
|
||||
from marconi.openstack.common import gettextutils
|
||||
from marconi.openstack.common import importutils
|
||||
|
||||
gettextutils.install('marconi')
|
||||
|
||||
STROPT = "StrOpt"
|
||||
BOOLOPT = "BoolOpt"
|
||||
INTOPT = "IntOpt"
|
||||
FLOATOPT = "FloatOpt"
|
||||
LISTOPT = "ListOpt"
|
||||
DICTOPT = "DictOpt"
|
||||
MULTISTROPT = "MultiStrOpt"
|
||||
|
||||
OPT_TYPES = {
|
||||
STROPT: 'string value',
|
||||
BOOLOPT: 'boolean value',
|
||||
INTOPT: 'integer value',
|
||||
FLOATOPT: 'floating point value',
|
||||
LISTOPT: 'list value',
|
||||
DICTOPT: 'dict value',
|
||||
MULTISTROPT: 'multi valued',
|
||||
}
|
||||
|
||||
OPTION_REGEX = re.compile(r"(%s)" % "|".join([STROPT, BOOLOPT, INTOPT,
|
||||
FLOATOPT, LISTOPT, DICTOPT,
|
||||
MULTISTROPT]))
|
||||
|
||||
PY_EXT = ".py"
|
||||
BASEDIR = os.path.abspath(os.path.join(os.path.dirname(__file__),
|
||||
"../../../../"))
|
||||
WORDWRAP_WIDTH = 60
|
||||
|
||||
|
||||
def generate(argv):
|
||||
parser = argparse.ArgumentParser(
|
||||
description='generate sample configuration file',
|
||||
)
|
||||
parser.add_argument('-m', dest='modules', action='append')
|
||||
parser.add_argument('-l', dest='libraries', action='append')
|
||||
parser.add_argument('srcfiles', nargs='*')
|
||||
parsed_args = parser.parse_args(argv)
|
||||
|
||||
mods_by_pkg = dict()
|
||||
for filepath in parsed_args.srcfiles:
|
||||
pkg_name = filepath.split(os.sep)[1]
|
||||
mod_str = '.'.join(['.'.join(filepath.split(os.sep)[:-1]),
|
||||
os.path.basename(filepath).split('.')[0]])
|
||||
mods_by_pkg.setdefault(pkg_name, list()).append(mod_str)
|
||||
# NOTE(lzyeval): place top level modules before packages
|
||||
pkg_names = sorted(pkg for pkg in mods_by_pkg if pkg.endswith(PY_EXT))
|
||||
ext_names = sorted(pkg for pkg in mods_by_pkg if pkg not in pkg_names)
|
||||
pkg_names.extend(ext_names)
|
||||
|
||||
# opts_by_group is a mapping of group name to an options list
|
||||
# The options list is a list of (module, options) tuples
|
||||
opts_by_group = {'DEFAULT': []}
|
||||
|
||||
if parsed_args.modules:
|
||||
for module_name in parsed_args.modules:
|
||||
module = _import_module(module_name)
|
||||
if module:
|
||||
for group, opts in _list_opts(module):
|
||||
opts_by_group.setdefault(group, []).append((module_name,
|
||||
opts))
|
||||
|
||||
# Look for entry points defined in libraries (or applications) for
|
||||
# option discovery, and include their return values in the output.
|
||||
#
|
||||
# Each entry point should be a function returning an iterable
|
||||
# of pairs with the group name (or None for the default group)
|
||||
# and the list of Opt instances for that group.
|
||||
if parsed_args.libraries:
|
||||
loader = stevedore.named.NamedExtensionManager(
|
||||
'oslo.config.opts',
|
||||
names=list(set(parsed_args.libraries)),
|
||||
invoke_on_load=False,
|
||||
)
|
||||
for ext in loader:
|
||||
for group, opts in ext.plugin():
|
||||
opt_list = opts_by_group.setdefault(group or 'DEFAULT', [])
|
||||
opt_list.append((ext.name, opts))
|
||||
|
||||
for pkg_name in pkg_names:
|
||||
mods = mods_by_pkg.get(pkg_name)
|
||||
mods.sort()
|
||||
for mod_str in mods:
|
||||
if mod_str.endswith('.__init__'):
|
||||
mod_str = mod_str[:mod_str.rfind(".")]
|
||||
|
||||
mod_obj = _import_module(mod_str)
|
||||
if not mod_obj:
|
||||
raise RuntimeError("Unable to import module %s" % mod_str)
|
||||
|
||||
for group, opts in _list_opts(mod_obj):
|
||||
opts_by_group.setdefault(group, []).append((mod_str, opts))
|
||||
|
||||
print_group_opts('DEFAULT', opts_by_group.pop('DEFAULT', []))
|
||||
for group in sorted(opts_by_group.keys()):
|
||||
print_group_opts(group, opts_by_group[group])
|
||||
|
||||
|
||||
def _import_module(mod_str):
|
||||
try:
|
||||
if mod_str.startswith('bin.'):
|
||||
imp.load_source(mod_str[4:], os.path.join('bin', mod_str[4:]))
|
||||
return sys.modules[mod_str[4:]]
|
||||
else:
|
||||
return importutils.import_module(mod_str)
|
||||
except Exception as e:
|
||||
sys.stderr.write("Error importing module %s: %s\n" % (mod_str, str(e)))
|
||||
return None
|
||||
|
||||
|
||||
def _is_in_group(opt, group):
|
||||
"Check if opt is in group."
|
||||
for value in group._opts.values():
|
||||
# NOTE(llu): Temporary workaround for bug #1262148, wait until
|
||||
# newly released oslo.config support '==' operator.
|
||||
if not(value['opt'] != opt):
|
||||
return True
|
||||
return False
|
||||
|
||||
|
||||
def _guess_groups(opt, mod_obj):
|
||||
# is it in the DEFAULT group?
|
||||
if _is_in_group(opt, cfg.CONF):
|
||||
return 'DEFAULT'
|
||||
|
||||
# what other groups is it in?
|
||||
for value in cfg.CONF.values():
|
||||
if isinstance(value, cfg.CONF.GroupAttr):
|
||||
if _is_in_group(opt, value._group):
|
||||
return value._group.name
|
||||
|
||||
raise RuntimeError(
|
||||
"Unable to find group for option %s, "
|
||||
"maybe it's defined twice in the same group?"
|
||||
% opt.name
|
||||
)
|
||||
|
||||
|
||||
def _list_opts(obj):
|
||||
def is_opt(o):
|
||||
return (isinstance(o, cfg.Opt) and
|
||||
not isinstance(o, cfg.SubCommandOpt))
|
||||
|
||||
opts = list()
|
||||
for attr_str in dir(obj):
|
||||
attr_obj = getattr(obj, attr_str)
|
||||
if is_opt(attr_obj):
|
||||
opts.append(attr_obj)
|
||||
elif (isinstance(attr_obj, list) and
|
||||
all(map(lambda x: is_opt(x), attr_obj))):
|
||||
opts.extend(attr_obj)
|
||||
|
||||
ret = {}
|
||||
for opt in opts:
|
||||
ret.setdefault(_guess_groups(opt, obj), []).append(opt)
|
||||
return ret.items()
|
||||
|
||||
|
||||
def print_group_opts(group, opts_by_module):
|
||||
print("[%s]" % group)
|
||||
print('')
|
||||
for mod, opts in opts_by_module:
|
||||
print('#')
|
||||
print('# Options defined in %s' % mod)
|
||||
print('#')
|
||||
print('')
|
||||
for opt in opts:
|
||||
_print_opt(opt)
|
||||
print('')
|
||||
|
||||
|
||||
def _get_my_ip():
|
||||
try:
|
||||
csock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
|
||||
csock.connect(('8.8.8.8', 80))
|
||||
(addr, port) = csock.getsockname()
|
||||
csock.close()
|
||||
return addr
|
||||
except socket.error:
|
||||
return None
|
||||
|
||||
|
||||
def _sanitize_default(name, value):
|
||||
"""Set up a reasonably sensible default for pybasedir, my_ip and host."""
|
||||
if value.startswith(sys.prefix):
|
||||
# NOTE(jd) Don't use os.path.join, because it is likely to think the
|
||||
# second part is an absolute pathname and therefore drop the first
|
||||
# part.
|
||||
value = os.path.normpath("/usr/" + value[len(sys.prefix):])
|
||||
elif value.startswith(BASEDIR):
|
||||
return value.replace(BASEDIR, '/usr/lib/python/site-packages')
|
||||
elif BASEDIR in value:
|
||||
return value.replace(BASEDIR, '')
|
||||
elif value == _get_my_ip():
|
||||
return '10.0.0.1'
|
||||
elif value in (socket.gethostname(), socket.getfqdn()) and 'host' in name:
|
||||
return 'marconi'
|
||||
elif value.strip() != value:
|
||||
return '"%s"' % value
|
||||
return value
|
||||
|
||||
|
||||
def _print_opt(opt):
|
||||
opt_name, opt_default, opt_help = opt.dest, opt.default, opt.help
|
||||
if not opt_help:
|
||||
sys.stderr.write('WARNING: "%s" is missing help string.\n' % opt_name)
|
||||
opt_help = ""
|
||||
opt_type = None
|
||||
try:
|
||||
opt_type = OPTION_REGEX.search(str(type(opt))).group(0)
|
||||
except (ValueError, AttributeError) as err:
|
||||
sys.stderr.write("%s\n" % str(err))
|
||||
sys.exit(1)
|
||||
opt_help = u'%s (%s)' % (opt_help,
|
||||
OPT_TYPES[opt_type])
|
||||
print('#', "\n# ".join(textwrap.wrap(opt_help, WORDWRAP_WIDTH)))
|
||||
if opt.deprecated_opts:
|
||||
for deprecated_opt in opt.deprecated_opts:
|
||||
if deprecated_opt.name:
|
||||
deprecated_group = (deprecated_opt.group if
|
||||
deprecated_opt.group else "DEFAULT")
|
||||
print('# Deprecated group/name - [%s]/%s' %
|
||||
(deprecated_group,
|
||||
deprecated_opt.name))
|
||||
try:
|
||||
if opt_default is None:
|
||||
print('#%s=<None>' % opt_name)
|
||||
elif opt_type == STROPT:
|
||||
assert(isinstance(opt_default, six.string_types))
|
||||
print('#%s=%s' % (opt_name, _sanitize_default(opt_name,
|
||||
opt_default)))
|
||||
elif opt_type == BOOLOPT:
|
||||
assert(isinstance(opt_default, bool))
|
||||
print('#%s=%s' % (opt_name, str(opt_default).lower()))
|
||||
elif opt_type == INTOPT:
|
||||
assert(isinstance(opt_default, int) and
|
||||
not isinstance(opt_default, bool))
|
||||
print('#%s=%s' % (opt_name, opt_default))
|
||||
elif opt_type == FLOATOPT:
|
||||
assert(isinstance(opt_default, float))
|
||||
print('#%s=%s' % (opt_name, opt_default))
|
||||
elif opt_type == LISTOPT:
|
||||
assert(isinstance(opt_default, list))
|
||||
print('#%s=%s' % (opt_name, ','.join(opt_default)))
|
||||
elif opt_type == DICTOPT:
|
||||
assert(isinstance(opt_default, dict))
|
||||
opt_default_strlist = [str(key) + ':' + str(value)
|
||||
for (key, value) in opt_default.items()]
|
||||
print('#%s=%s' % (opt_name, ','.join(opt_default_strlist)))
|
||||
elif opt_type == MULTISTROPT:
|
||||
assert(isinstance(opt_default, list))
|
||||
if not opt_default:
|
||||
opt_default = ['']
|
||||
for default in opt_default:
|
||||
print('#%s=%s' % (opt_name, default))
|
||||
print('')
|
||||
except Exception:
|
||||
sys.stderr.write('Error in option "%s"\n' % opt_name)
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
def main():
|
||||
generate(sys.argv[1:])
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
@ -24,7 +24,7 @@ import traceback
|
||||
|
||||
import six
|
||||
|
||||
from marconi.openstack.common.gettextutils import _
|
||||
from marconi.openstack.common.gettextutils import _LE
|
||||
|
||||
|
||||
class save_and_reraise_exception(object):
|
||||
@ -59,7 +59,7 @@ class save_and_reraise_exception(object):
|
||||
|
||||
def __exit__(self, exc_type, exc_val, exc_tb):
|
||||
if exc_type is not None:
|
||||
logging.error(_('Original exception being dropped: %s'),
|
||||
logging.error(_LE('Original exception being dropped: %s'),
|
||||
traceback.format_exception(self.type_,
|
||||
self.value,
|
||||
self.tb))
|
||||
@ -88,8 +88,8 @@ def forever_retry_uncaught_exceptions(infunc):
|
||||
if (cur_time - last_log_time > 60 or
|
||||
this_exc_message != last_exc_message):
|
||||
logging.exception(
|
||||
_('Unexpected exception occurred %d time(s)... '
|
||||
'retrying.') % exc_count)
|
||||
_LE('Unexpected exception occurred %d time(s)... '
|
||||
'retrying.') % exc_count)
|
||||
last_log_time = cur_time
|
||||
last_exc_message = this_exc_message
|
||||
exc_count = 0
|
||||
|
@ -19,7 +19,6 @@ import os
|
||||
import tempfile
|
||||
|
||||
from marconi.openstack.common import excutils
|
||||
from marconi.openstack.common.gettextutils import _
|
||||
from marconi.openstack.common import log as logging
|
||||
|
||||
LOG = logging.getLogger(__name__)
|
||||
@ -59,7 +58,7 @@ def read_cached_file(filename, force_reload=False):
|
||||
cache_info = _FILE_CACHE.setdefault(filename, {})
|
||||
|
||||
if not cache_info or mtime > cache_info.get('mtime', 0):
|
||||
LOG.debug(_("Reloading cached file %s") % filename)
|
||||
LOG.debug("Reloading cached file %s" % filename)
|
||||
with open(filename) as fap:
|
||||
cache_info['data'] = fap.read()
|
||||
cache_info['mtime'] = mtime
|
||||
|
@ -28,7 +28,6 @@ import gettext
|
||||
import locale
|
||||
from logging import handlers
|
||||
import os
|
||||
import re
|
||||
|
||||
from babel import localedata
|
||||
import six
|
||||
@ -248,43 +247,15 @@ class Message(six.text_type):
|
||||
if other is None:
|
||||
params = (other,)
|
||||
elif isinstance(other, dict):
|
||||
params = self._trim_dictionary_parameters(other)
|
||||
# Merge the dictionaries
|
||||
params = {}
|
||||
if isinstance(self.params, dict):
|
||||
params.update(self._copy_param(self.params))
|
||||
params.update(self._copy_param(other))
|
||||
else:
|
||||
params = self._copy_param(other)
|
||||
return params
|
||||
|
||||
def _trim_dictionary_parameters(self, dict_param):
|
||||
"""Return a dict that only has matching entries in the msgid."""
|
||||
# NOTE(luisg): Here we trim down the dictionary passed as parameters
|
||||
# to avoid carrying a lot of unnecessary weight around in the message
|
||||
# object, for example if someone passes in Message() % locals() but
|
||||
# only some params are used, and additionally we prevent errors for
|
||||
# non-deepcopyable objects by unicoding() them.
|
||||
|
||||
# Look for %(param) keys in msgid;
|
||||
# Skip %% and deal with the case where % is first character on the line
|
||||
keys = re.findall('(?:[^%]|^)?%\((\w*)\)[a-z]', self.msgid)
|
||||
|
||||
# If we don't find any %(param) keys but have a %s
|
||||
if not keys and re.findall('(?:[^%]|^)%[a-z]', self.msgid):
|
||||
# Apparently the full dictionary is the parameter
|
||||
params = self._copy_param(dict_param)
|
||||
else:
|
||||
params = {}
|
||||
# Save our existing parameters as defaults to protect
|
||||
# ourselves from losing values if we are called through an
|
||||
# (erroneous) chain that builds a valid Message with
|
||||
# arguments, and then does something like "msg % kwds"
|
||||
# where kwds is an empty dictionary.
|
||||
src = {}
|
||||
if isinstance(self.params, dict):
|
||||
src.update(self.params)
|
||||
src.update(dict_param)
|
||||
for key in keys:
|
||||
params[key] = self._copy_param(src[key])
|
||||
|
||||
return params
|
||||
|
||||
def _copy_param(self, param):
|
||||
try:
|
||||
return copy.deepcopy(param)
|
||||
|
@ -36,17 +36,9 @@ import functools
|
||||
import inspect
|
||||
import itertools
|
||||
import json
|
||||
try:
|
||||
import xmlrpclib
|
||||
except ImportError:
|
||||
# NOTE(jaypipes): xmlrpclib was renamed to xmlrpc.client in Python3
|
||||
# however the function and object call signatures
|
||||
# remained the same. This whole try/except block should
|
||||
# be removed and replaced with a call to six.moves once
|
||||
# six 1.4.2 is released. See http://bit.ly/1bqrVzu
|
||||
import xmlrpc.client as xmlrpclib
|
||||
|
||||
import six
|
||||
import six.moves.xmlrpc_client as xmlrpclib
|
||||
|
||||
from marconi.openstack.common import gettextutils
|
||||
from marconi.openstack.common import importutils
|
||||
|
@ -15,6 +15,7 @@
|
||||
|
||||
import contextlib
|
||||
import errno
|
||||
import fcntl
|
||||
import functools
|
||||
import os
|
||||
import shutil
|
||||
@ -28,7 +29,7 @@ import weakref
|
||||
from oslo.config import cfg
|
||||
|
||||
from marconi.openstack.common import fileutils
|
||||
from marconi.openstack.common.gettextutils import _
|
||||
from marconi.openstack.common.gettextutils import _, _LE, _LI
|
||||
from marconi.openstack.common import log as logging
|
||||
|
||||
|
||||
@ -52,7 +53,7 @@ def set_defaults(lock_path):
|
||||
cfg.set_defaults(util_opts, lock_path=lock_path)
|
||||
|
||||
|
||||
class _InterProcessLock(object):
|
||||
class _FileLock(object):
|
||||
"""Lock implementation which allows multiple locks, working around
|
||||
issues like bugs.debian.org/cgi-bin/bugreport.cgi?bug=632857 and does
|
||||
not require any cleanup. Since the lock is always held on a file
|
||||
@ -79,7 +80,7 @@ class _InterProcessLock(object):
|
||||
|
||||
if not os.path.exists(basedir):
|
||||
fileutils.ensure_tree(basedir)
|
||||
LOG.info(_('Created lock path: %s'), basedir)
|
||||
LOG.info(_LI('Created lock path: %s'), basedir)
|
||||
|
||||
self.lockfile = open(self.fname, 'w')
|
||||
|
||||
@ -90,7 +91,7 @@ class _InterProcessLock(object):
|
||||
# Also upon reading the MSDN docs for locking(), it seems
|
||||
# to have a laughable 10 attempts "blocking" mechanism.
|
||||
self.trylock()
|
||||
LOG.debug(_('Got file lock "%s"'), self.fname)
|
||||
LOG.debug('Got file lock "%s"', self.fname)
|
||||
return True
|
||||
except IOError as e:
|
||||
if e.errno in (errno.EACCES, errno.EAGAIN):
|
||||
@ -114,14 +115,17 @@ class _InterProcessLock(object):
|
||||
try:
|
||||
self.unlock()
|
||||
self.lockfile.close()
|
||||
LOG.debug(_('Released file lock "%s"'), self.fname)
|
||||
LOG.debug('Released file lock "%s"', self.fname)
|
||||
except IOError:
|
||||
LOG.exception(_("Could not release the acquired lock `%s`"),
|
||||
LOG.exception(_LE("Could not release the acquired lock `%s`"),
|
||||
self.fname)
|
||||
|
||||
def __exit__(self, exc_type, exc_val, exc_tb):
|
||||
self.release()
|
||||
|
||||
def exists(self):
|
||||
return os.path.exists(self.fname)
|
||||
|
||||
def trylock(self):
|
||||
raise NotImplementedError()
|
||||
|
||||
@ -129,7 +133,7 @@ class _InterProcessLock(object):
|
||||
raise NotImplementedError()
|
||||
|
||||
|
||||
class _WindowsLock(_InterProcessLock):
|
||||
class _WindowsLock(_FileLock):
|
||||
def trylock(self):
|
||||
msvcrt.locking(self.lockfile.fileno(), msvcrt.LK_NBLCK, 1)
|
||||
|
||||
@ -137,7 +141,7 @@ class _WindowsLock(_InterProcessLock):
|
||||
msvcrt.locking(self.lockfile.fileno(), msvcrt.LK_UNLCK, 1)
|
||||
|
||||
|
||||
class _PosixLock(_InterProcessLock):
|
||||
class _FcntlLock(_FileLock):
|
||||
def trylock(self):
|
||||
fcntl.lockf(self.lockfile, fcntl.LOCK_EX | fcntl.LOCK_NB)
|
||||
|
||||
@ -145,35 +149,106 @@ class _PosixLock(_InterProcessLock):
|
||||
fcntl.lockf(self.lockfile, fcntl.LOCK_UN)
|
||||
|
||||
|
||||
class _PosixLock(object):
|
||||
def __init__(self, name):
|
||||
# Hash the name because it's not valid to have POSIX semaphore
|
||||
# names with things like / in them. Then use base64 to encode
|
||||
# the digest() instead taking the hexdigest() because the
|
||||
# result is shorter and most systems can't have shm sempahore
|
||||
# names longer than 31 characters.
|
||||
h = hashlib.sha1()
|
||||
h.update(name.encode('ascii'))
|
||||
self.name = str((b'/' + base64.urlsafe_b64encode(
|
||||
h.digest())).decode('ascii'))
|
||||
|
||||
def acquire(self, timeout=None):
|
||||
self.semaphore = posix_ipc.Semaphore(self.name,
|
||||
flags=posix_ipc.O_CREAT,
|
||||
initial_value=1)
|
||||
self.semaphore.acquire(timeout)
|
||||
return self
|
||||
|
||||
def __enter__(self):
|
||||
self.acquire()
|
||||
return self
|
||||
|
||||
def release(self):
|
||||
self.semaphore.release()
|
||||
self.semaphore.close()
|
||||
|
||||
def __exit__(self, exc_type, exc_val, exc_tb):
|
||||
self.release()
|
||||
|
||||
def exists(self):
|
||||
try:
|
||||
semaphore = posix_ipc.Semaphore(self.name)
|
||||
except posix_ipc.ExistentialError:
|
||||
return False
|
||||
else:
|
||||
semaphore.close()
|
||||
return True
|
||||
|
||||
|
||||
if os.name == 'nt':
|
||||
import msvcrt
|
||||
InterProcessLock = _WindowsLock
|
||||
FileLock = _WindowsLock
|
||||
else:
|
||||
import fcntl
|
||||
import base64
|
||||
import hashlib
|
||||
import posix_ipc
|
||||
InterProcessLock = _PosixLock
|
||||
FileLock = _FcntlLock
|
||||
|
||||
_semaphores = weakref.WeakValueDictionary()
|
||||
_semaphores_lock = threading.Lock()
|
||||
|
||||
|
||||
def external_lock(name, lock_file_prefix=None):
|
||||
with internal_lock(name):
|
||||
LOG.debug(_('Attempting to grab external lock "%(lock)s"'),
|
||||
{'lock': name})
|
||||
def _get_lock_path(name, lock_file_prefix, lock_path=None):
|
||||
# NOTE(mikal): the lock name cannot contain directory
|
||||
# separators
|
||||
name = name.replace(os.sep, '_')
|
||||
if lock_file_prefix:
|
||||
sep = '' if lock_file_prefix.endswith('-') else '-'
|
||||
name = '%s%s%s' % (lock_file_prefix, sep, name)
|
||||
|
||||
# NOTE(mikal): the lock name cannot contain directory
|
||||
# separators
|
||||
name = name.replace(os.sep, '_')
|
||||
if lock_file_prefix:
|
||||
sep = '' if lock_file_prefix.endswith('-') else '-'
|
||||
name = '%s%s%s' % (lock_file_prefix, sep, name)
|
||||
local_lock_path = lock_path or CONF.lock_path
|
||||
|
||||
if not CONF.lock_path:
|
||||
if not local_lock_path:
|
||||
# NOTE(bnemec): Create a fake lock path for posix locks so we don't
|
||||
# unnecessarily raise the RequiredOptError below.
|
||||
if InterProcessLock is not _PosixLock:
|
||||
raise cfg.RequiredOptError('lock_path')
|
||||
local_lock_path = 'posixlock:/'
|
||||
|
||||
lock_file_path = os.path.join(CONF.lock_path, name)
|
||||
return os.path.join(local_lock_path, name)
|
||||
|
||||
return InterProcessLock(lock_file_path)
|
||||
|
||||
def external_lock(name, lock_file_prefix=None, lock_path=None):
|
||||
LOG.debug('Attempting to grab external lock "%(lock)s"',
|
||||
{'lock': name})
|
||||
|
||||
lock_file_path = _get_lock_path(name, lock_file_prefix, lock_path)
|
||||
|
||||
# NOTE(bnemec): If an explicit lock_path was passed to us then it
|
||||
# means the caller is relying on file-based locking behavior, so
|
||||
# we can't use posix locks for those calls.
|
||||
if lock_path:
|
||||
return FileLock(lock_file_path)
|
||||
return InterProcessLock(lock_file_path)
|
||||
|
||||
|
||||
def remove_external_lock_file(name, lock_file_prefix=None):
|
||||
"""Remove a external lock file when it's not used anymore
|
||||
This will be helpful when we have a lot of lock files
|
||||
"""
|
||||
with internal_lock(name):
|
||||
lock_file_path = _get_lock_path(name, lock_file_prefix)
|
||||
try:
|
||||
os.remove(lock_file_path)
|
||||
except OSError:
|
||||
LOG.info(_LI('Failed to remove file %(file)s'),
|
||||
{'file': lock_file_path})
|
||||
|
||||
|
||||
def internal_lock(name):
|
||||
@ -184,12 +259,12 @@ def internal_lock(name):
|
||||
sem = threading.Semaphore()
|
||||
_semaphores[name] = sem
|
||||
|
||||
LOG.debug(_('Got semaphore "%(lock)s"'), {'lock': name})
|
||||
LOG.debug('Got semaphore "%(lock)s"', {'lock': name})
|
||||
return sem
|
||||
|
||||
|
||||
@contextlib.contextmanager
|
||||
def lock(name, lock_file_prefix=None, external=False):
|
||||
def lock(name, lock_file_prefix=None, external=False, lock_path=None):
|
||||
"""Context based lock
|
||||
|
||||
This function yields a `threading.Semaphore` instance (if we don't use
|
||||
@ -204,15 +279,17 @@ def lock(name, lock_file_prefix=None, external=False):
|
||||
workers both run a a method decorated with @synchronized('mylock',
|
||||
external=True), only one of them will execute at a time.
|
||||
"""
|
||||
if external and not CONF.disable_process_locking:
|
||||
lock = external_lock(name, lock_file_prefix)
|
||||
else:
|
||||
lock = internal_lock(name)
|
||||
with lock:
|
||||
yield lock
|
||||
int_lock = internal_lock(name)
|
||||
with int_lock:
|
||||
if external and not CONF.disable_process_locking:
|
||||
ext_lock = external_lock(name, lock_file_prefix, lock_path)
|
||||
with ext_lock:
|
||||
yield ext_lock
|
||||
else:
|
||||
yield int_lock
|
||||
|
||||
|
||||
def synchronized(name, lock_file_prefix=None, external=False):
|
||||
def synchronized(name, lock_file_prefix=None, external=False, lock_path=None):
|
||||
"""Synchronization decorator.
|
||||
|
||||
Decorating a method like so::
|
||||
@ -240,12 +317,12 @@ def synchronized(name, lock_file_prefix=None, external=False):
|
||||
@functools.wraps(f)
|
||||
def inner(*args, **kwargs):
|
||||
try:
|
||||
with lock(name, lock_file_prefix, external):
|
||||
LOG.debug(_('Got semaphore / lock "%(function)s"'),
|
||||
with lock(name, lock_file_prefix, external, lock_path):
|
||||
LOG.debug('Got semaphore / lock "%(function)s"',
|
||||
{'function': f.__name__})
|
||||
return f(*args, **kwargs)
|
||||
finally:
|
||||
LOG.debug(_('Semaphore / lock released "%(function)s"'),
|
||||
LOG.debug('Semaphore / lock released "%(function)s"',
|
||||
{'function': f.__name__})
|
||||
return inner
|
||||
return wrap
|
||||
|
@ -15,7 +15,7 @@
|
||||
# License for the specific language governing permissions and limitations
|
||||
# under the License.
|
||||
|
||||
"""Openstack logging handler.
|
||||
"""OpenStack logging handler.
|
||||
|
||||
This module adds to logging functionality by adding the option to specify
|
||||
a context object when calling the various log methods. If the context object
|
||||
@ -357,7 +357,7 @@ class ContextAdapter(BaseLoggerAdapter):
|
||||
extra.update(_dictify_context(context))
|
||||
|
||||
instance = kwargs.pop('instance', None)
|
||||
instance_uuid = (extra.get('instance_uuid', None) or
|
||||
instance_uuid = (extra.get('instance_uuid') or
|
||||
kwargs.pop('instance_uuid', None))
|
||||
instance_extra = ''
|
||||
if instance:
|
||||
@ -654,7 +654,7 @@ class ContextFormatter(logging.Formatter):
|
||||
if key not in record.__dict__:
|
||||
record.__dict__[key] = ''
|
||||
|
||||
if record.__dict__.get('request_id', None):
|
||||
if record.__dict__.get('request_id'):
|
||||
self._fmt = CONF.logging_context_format_string
|
||||
else:
|
||||
self._fmt = CONF.logging_default_format_string
|
||||
|
@ -1,5 +1,6 @@
|
||||
[DEFAULT]
|
||||
module=cache
|
||||
module=config.generator
|
||||
module=excutils
|
||||
module=fileutils
|
||||
module=gettextutils
|
||||
|
@ -7,6 +7,7 @@ jsonschema>=2.0.0,<3.0.0
|
||||
iso8601>=0.1.8
|
||||
msgpack-python
|
||||
MySQL-python
|
||||
posix_ipc
|
||||
pymongo>=2.4
|
||||
python-keystoneclient>=0.6.0
|
||||
python-memcached>=1.48
|
||||
|
Loading…
x
Reference in New Issue
Block a user