Ejemplo n.º 1
0
from manager import SharedMemoryManager

_FIELD_CACHE_GET = None
_FIELD_CACHE_SET = None
_GA = object.__getattribute__
_SA = object.__setattr__
_DA = object.__delattr__


# determine if our current pid is different from the server PID (i.e.
# if we are in a subprocess or not)
from src import PROC_MODIFIED_OBJS

# get info about the current process and thread
_SELF_PID = os.getpid()
_SERVER_PID, _PORTAL_PID = get_evennia_pids()
_IS_SUBPROCESS = (_SERVER_PID and _PORTAL_PID) and not _SELF_PID in (_SERVER_PID, _PORTAL_PID)
_IS_MAIN_THREAD = threading.currentThread().getName() == "MainThread"

#_SERVER_PID = None
#_PORTAL_PID = None
#        #global _SERVER_PID, _PORTAL_PID, _IS_SUBPROCESS, _SELF_PID
#        if not _SERVER_PID and not _PORTAL_PID:
#            _IS_SUBPROCESS = (_SERVER_PID and _PORTAL_PID) and not _SELF_PID in (_SERVER_PID, _PORTAL_PID)

class SharedMemoryModelBase(ModelBase):
    # CL: upstream had a __new__ method that skipped ModelBase's __new__ if
    # SharedMemoryModelBase was not in the model class's ancestors. It's not
    # clear what was the intended purpose, but skipping ModelBase.__new__
    # broke things; in particular, default manager inheritance.
Ejemplo n.º 2
0
AUTO_FLUSH_MIN_INTERVAL = 60.0 * 5  # at least 5 mins between cache flushes

_GA = object.__getattribute__
_SA = object.__setattr__
_DA = object.__delattr__

# References to db-updated objects are stored here so the
# main process can be informed to re-cache itself.
PROC_MODIFIED_COUNT = 0
PROC_MODIFIED_OBJS = WeakValueDictionary()

# get info about the current process and thread; determine if our
# current pid is different from the server PID (i.e.  # if we are in a
# subprocess or not)
_SELF_PID = os.getpid()
_SERVER_PID, _PORTAL_PID = get_evennia_pids()
_IS_SUBPROCESS = (_SERVER_PID and
                  _PORTAL_PID) and not _SELF_PID in (_SERVER_PID, _PORTAL_PID)
_IS_MAIN_THREAD = threading.currentThread().getName() == "MainThread"


class SharedMemoryModelBase(ModelBase):
    # CL: upstream had a __new__ method that skipped ModelBase's __new__ if
    # SharedMemoryModelBase was not in the model class's ancestors. It's not
    # clear what was the intended purpose, but skipping ModelBase.__new__
    # broke things; in particular, default manager inheritance.

    def __call__(cls, *args, **kwargs):
        """
        this method will either create an instance (by calling the default implementation)
        or try to retrieve one from the class-wide cache by infering the pk value from
Ejemplo n.º 3
0
"""

from sys import getsizeof
import os
import threading
from collections import defaultdict

from src.server.models import ServerConfig
from src.utils.utils import uses_database, to_str, get_evennia_pids

_GA = object.__getattribute__
_SA = object.__setattr__
_DA = object.__delattr__

_IS_SUBPROCESS = os.getpid() in get_evennia_pids()
_IS_MAIN_THREAD = threading.currentThread().getName() == "MainThread"

#
# Set up the cache stores
#

_ATTR_CACHE = {}
_PROP_CACHE = defaultdict(dict)

#------------------------------------------------------------
# Cache key hash generation
#------------------------------------------------------------

if uses_database(
        "mysql") and ServerConfig.objects.get_mysql_db_version() < '5.6.4':
Ejemplo n.º 4
0
"""

from sys import getsizeof
import os
import threading
from collections import defaultdict

from src.server.models import ServerConfig
from src.utils.utils import uses_database, to_str, get_evennia_pids

_GA = object.__getattribute__
_SA = object.__setattr__
_DA = object.__delattr__

_IS_SUBPROCESS = os.getpid() in get_evennia_pids()
_IS_MAIN_THREAD = threading.currentThread().getName() == "MainThread"

#
# Set up the cache stores
#

_ATTR_CACHE = {}
_PROP_CACHE = defaultdict(dict)

#------------------------------------------------------------
# Cache key hash generation
#------------------------------------------------------------

if uses_database("mysql") and ServerConfig.objects.get_mysql_db_version() < '5.6.4':
    # mysql <5.6.4 don't support millisecond precision