[MERGE] multiprocess signaling
trying trunk, feature branch fails with Address already in use bzr revid: al@openerp.com-20121208210954-pi55sib4x7eyamem
This commit is contained in:
commit
a6700e0e3f
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@ -43,7 +43,7 @@ class ir_ui_menu(osv.osv):
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def __init__(self, *args, **kwargs):
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self.cache_lock = threading.RLock()
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self.clear_cache()
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self._cache = {}
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r = super(ir_ui_menu, self).__init__(*args, **kwargs)
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self.pool.get('ir.model.access').register_cache_clearing_method(self._name, 'clear_cache')
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return r
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@ -51,6 +51,10 @@ class ir_ui_menu(osv.osv):
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def clear_cache(self):
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with self.cache_lock:
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# radical but this doesn't frequently happen
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if self._cache:
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# Normally this is done by openerp.tools.ormcache
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# but since we do not use it, set it by ourself.
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self.pool._any_cache_cleared = True
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self._cache = {}
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def _filter_visible_menus(self, cr, uid, ids, context=None):
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@ -30,6 +30,7 @@ import re
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import urllib
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import zipimport
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import openerp
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from openerp import modules, pooler, release, tools, addons
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from openerp.modules.db import create_categories
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from openerp.tools.parse_version import parse_version
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@ -385,6 +386,8 @@ class module(osv.osv):
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# Mark them to be installed.
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if to_install_ids:
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self.button_install(cr, uid, to_install_ids, context=context)
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openerp.modules.registry.RegistryManager.signal_registry_change(cr.dbname)
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return dict(ACTION_DICT, name=_('Install'))
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def button_immediate_install(self, cr, uid, ids, context=None):
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@ -204,9 +204,12 @@ def start_master_thread():
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_logger.warning("Connection pool size (%s) is set lower than max number of cron threads (%s), "
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"this may cause trouble if you reach that number of parallel cron tasks.",
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db_maxconn, _thread_slots)
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t = threading.Thread(target=runner, name="openerp.cron.master_thread")
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t.setDaemon(True)
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t.start()
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_logger.debug("Master cron daemon started!")
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if _thread_slots:
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t = threading.Thread(target=runner, name="openerp.cron.master_thread")
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t.setDaemon(True)
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t.start()
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_logger.debug("Master cron daemon started!")
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else:
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_logger.info("No master cron daemon (0 workers needed).")
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# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
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@ -58,6 +58,18 @@ class Registry(object):
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self.db_name = db_name
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self.db = openerp.sql_db.db_connect(db_name)
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# Inter-process signaling (used only when openerp.multi_process is True):
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# The `base_registry_signaling` sequence indicates the whole registry
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# must be reloaded.
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# The `base_cache_signaling sequence` indicates all caches must be
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# invalidated (i.e. cleared).
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self.base_registry_signaling_sequence = 1
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self.base_cache_signaling_sequence = 1
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# Flag indicating if at least one model cache has been cleared.
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# Useful only in a multi-process context.
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self._any_cache_cleared = False
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cr = self.db.cursor()
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has_unaccent = openerp.modules.db.has_unaccent(cr)
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if openerp.tools.config['unaccent'] and not has_unaccent:
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@ -121,6 +133,36 @@ class Registry(object):
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"""
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for model in self.models.itervalues():
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model.clear_caches()
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# Special case for ir_ui_menu which does not use openerp.tools.ormcache.
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ir_ui_menu = self.models.get('ir.ui.menu')
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if ir_ui_menu:
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ir_ui_menu.clear_cache()
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# Useful only in a multi-process context.
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def reset_any_cache_cleared(self):
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self._any_cache_cleared = False
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# Useful only in a multi-process context.
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def any_cache_cleared(self):
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return self._any_cache_cleared
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@classmethod
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def setup_multi_process_signaling(cls, cr):
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if not openerp.multi_process:
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return
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# Inter-process signaling:
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# The `base_registry_signaling` sequence indicates the whole registry
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# must be reloaded.
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# The `base_cache_signaling sequence` indicates all caches must be
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# invalidated (i.e. cleared).
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cr.execute("""SELECT sequence_name FROM information_schema.sequences WHERE sequence_name='base_registry_signaling'""")
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if not cr.fetchall():
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cr.execute("""CREATE SEQUENCE base_registry_signaling INCREMENT BY 1 START WITH 1""")
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cr.execute("""SELECT nextval('base_registry_signaling')""")
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cr.execute("""CREATE SEQUENCE base_cache_signaling INCREMENT BY 1 START WITH 1""")
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cr.execute("""SELECT nextval('base_cache_signaling')""")
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@contextmanager
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def cursor(self, auto_commit=True):
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@ -182,6 +224,7 @@ class RegistryManager(object):
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cr = registry.db.cursor()
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try:
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Registry.setup_multi_process_signaling(cr)
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registry.do_parent_store(cr)
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registry.get('ir.actions.report.xml').register_all(cr)
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cr.commit()
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@ -232,5 +275,71 @@ class RegistryManager(object):
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if db_name in cls.registries:
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cls.registries[db_name].clear_caches()
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@classmethod
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def check_registry_signaling(cls, db_name):
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if openerp.multi_process and db_name in cls.registries:
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registry = cls.get(db_name, pooljobs=False)
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cr = registry.db.cursor()
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try:
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cr.execute("""
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SELECT base_registry_signaling.last_value,
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base_cache_signaling.last_value
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FROM base_registry_signaling, base_cache_signaling""")
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r, c = cr.fetchone()
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# Check if the model registry must be reloaded (e.g. after the
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# database has been updated by another process).
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if registry.base_registry_signaling_sequence != r:
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_logger.info("Reloading the model registry after database signaling.")
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# Don't run the cron in the Gunicorn worker.
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registry = cls.new(db_name, pooljobs=False)
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registry.base_registry_signaling_sequence = r
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# Check if the model caches must be invalidated (e.g. after a write
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# occured on another process). Don't clear right after a registry
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# has been reload.
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elif registry.base_cache_signaling_sequence != c:
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_logger.info("Invalidating all model caches after database signaling.")
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registry.base_cache_signaling_sequence = c
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registry.clear_caches()
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registry.reset_any_cache_cleared()
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# One possible reason caches have been invalidated is the
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# use of decimal_precision.write(), in which case we need
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# to refresh fields.float columns.
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for model in registry.models.values():
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for column in model._columns.values():
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if hasattr(column, 'digits_change'):
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column.digits_change(cr)
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finally:
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cr.close()
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@classmethod
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def signal_caches_change(cls, db_name):
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if openerp.multi_process and db_name in cls.registries:
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# Check the registries if any cache has been cleared and signal it
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# through the database to other processes.
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registry = cls.get(db_name, pooljobs=False)
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if registry.any_cache_cleared():
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_logger.info("At least one model cache has been cleared, signaling through the database.")
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cr = registry.db.cursor()
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r = 1
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try:
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cr.execute("select nextval('base_cache_signaling')")
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r = cr.fetchone()[0]
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finally:
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cr.close()
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registry.base_cache_signaling_sequence = r
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registry.reset_any_cache_cleared()
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@classmethod
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def signal_registry_change(cls, db_name):
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if openerp.multi_process and db_name in cls.registries:
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registry = cls.get(db_name, pooljobs=False)
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cr = registry.db.cursor()
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r = 1
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try:
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cr.execute("select nextval('base_registry_signaling')")
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r = cr.fetchone()[0]
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finally:
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cr.close()
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registry.base_registry_signaling_sequence = r
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# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
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@ -2509,6 +2509,7 @@ class BaseModel(object):
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try:
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getattr(self, '_ormcache')
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self._ormcache = {}
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self.pool._any_cache_cleared = True
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except AttributeError:
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pass
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@ -597,8 +597,10 @@ class objects_proxy(netsvc.ExportService):
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raise NameError("Method not available %s" % method)
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security.check(db,uid,passwd)
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assert openerp.osv.osv.service, "The object_proxy class must be started with start_object_proxy."
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openerp.modules.registry.RegistryManager.check_registry_signaling(db)
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fn = getattr(openerp.osv.osv.service, method)
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res = fn(db, uid, *params)
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openerp.modules.registry.RegistryManager.signal_caches_change(db)
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return res
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@ -680,8 +682,10 @@ class report_spool(netsvc.ExportService):
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if method not in ['report', 'report_get', 'render_report']:
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raise KeyError("Method not supported %s" % method)
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security.check(db,uid,passwd)
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openerp.modules.registry.RegistryManager.check_registry_signaling(db)
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fn = getattr(self, 'exp_' + method)
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res = fn(db, uid, *params)
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openerp.modules.registry.RegistryManager.signal_caches_change(db)
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return res
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def exp_render_report(self, db, uid, object, ids, datas=None, context=None):
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@ -57,10 +57,12 @@ class ormcache(object):
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try:
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key = args[self.skiparg-2:]
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del d[key]
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self2.pool._any_cache_cleared = True
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except KeyError:
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pass
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else:
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d.clear()
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self2.pool._any_cache_cleared = True
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class ormcache_multi(ormcache):
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def __init__(self, skiparg=2, size=8192, multi=3):
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