def __init__(self):
'''
Constructor
'''
if hasattr(self, 'logging'):
if isinstance(self.logging, dict):
logging_config = dict(self.logging)
else:
logging_config = self.logging.todict()
logging_config.setdefault('disable_existing_loggers', False)
logging.config.dictConfig(logging_config)
elif hasattr(self, 'loggingconfig'):
logging.config.fileConfig(self.loggingconfig, disable_existing_loggers=False)
self.scheduler = Scheduler(DefaultPolling(), getattr(self, 'processevents', None), getattr(self, 'queuedefaultsize', None), getattr(self, 'queuemaxsize', None),
defaultQueueClass=CBQueue.AutoClassQueue.initHelper('_classname0'), defaultQueuePriority = 400)
if self.debugging:
self.scheduler.debugging = True
self.scheduler.logger.setLevel(logging.DEBUG)
self.scheduler.queue.addSubQueue(self.pollwritepriority, PollEvent.createMatcher(category=PollEvent.WRITE_READY), 'write', None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(self.pollreadpriority, PollEvent.createMatcher(category=PollEvent.READ_READY), 'read', None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(self.pollerrorpriority, PollEvent.createMatcher(category=PollEvent.ERROR), 'error')
self.scheduler.queue.addSubQueue(self.connectioncontrolpriority, ConnectionControlEvent.createMatcher(), 'control')
self.scheduler.queue.addSubQueue(self.connectionwritepriority, ConnectionWriteEvent.createMatcher(), 'connectionwrite', self.totalwritelimit, self.totalwritelimit, CBQueue.AutoClassQueue.initHelper('connection', self.preservefornew, subqueuelimit = self.writelimitperconnection))
self.scheduler.queue.addSubQueue(self.streamdatapriority, StreamDataEvent.createMatcher(), 'streamdata', self.streamdatalimit, self.streamdatalimit, CBQueue.AutoClassQueue.initHelper('stream', self.preservefornew, subqueuelimit = self.datalimitperstream))
self.scheduler.queue.addSubQueue(self.routinecontrolpriority, RoutineControlEvent.createMatcher(), 'routine')
self.scheduler.queue.addSubQueue(self.timerpriority, TimerEvent.createMatcher(), 'timer')
self.scheduler.queue.addSubQueue(self.resolverresppriority, ResolveResponseEvent.createMatcher(), 'resolve')
self.scheduler.queue.addSubQueue(self.resolverreqpriority, ResolveRequestEvent.createMatcher(), 'resolvereq', 16)
self.scheduler.queue.addSubQueue(self.sysctlpriority, SystemControlEvent.createMatcher(), 'sysctl')
self.scheduler.queue.addSubQueue(self.sysctllowpriority, SystemControlLowPriorityEvent.createMatcher(), 'sysctllow')
self.scheduler.queue.addSubQueue(self.moduleapicallpriority, ModuleAPICall.createMatcher(), 'moduleapi', None, None, CBQueue.AutoClassQueue.initHelper('target', 2, subqueuelimit = 5))
self.scheduler.queue.addSubQueue(self.moduleapireplypriority, ModuleAPIReply.createMatcher(), 'moduleapireply')
self.scheduler.queue.addSubQueue(self.modulenotifypriority, ModuleNotification.createMatcher(), 'modulenotify', None, None, CBQueue.AutoClassQueue.initHelper('target', subqueuelimit=5))
self.scheduler.queue.addSubQueue(self.moduleloadeventpriority, ModuleLoadStateChanged.createMatcher(), 'moduleload')
self.scheduler.queue.addSubQueue(self.lockpriority, LockEvent.createMatcher(), 'lock', None, None, CBQueue.AutoClassQueue.initHelper('key', subqueuelimit=1))
self.resolver = Resolver(self.scheduler, self.resolverpoolsize)
self.moduleloader = ModuleLoader(self)
def __init__(self):
'''
Constructor
'''
if hasattr(self, 'logging'):
if isinstance(self.logging, dict):
logging_config = dict(self.logging)
else:
logging_config = self.logging.todict()
logging_config.setdefault('disable_existing_loggers', False)
logging.config.dictConfig(logging_config)
elif hasattr(self, 'loggingconfig'):
logging.config.fileConfig(self.loggingconfig, disable_existing_loggers=False)
self.scheduler = Scheduler(DefaultPolling(), getattr(self, 'processevents', None), getattr(self, 'queuedefaultsize', None), getattr(self, 'queuemaxsize', None),
defaultQueueClass=CBQueue.AutoClassQueue.initHelper('_classname0'), defaultQueuePriority = 400)
if self.debugging:
self.scheduler.debugging = True
self.scheduler.logger.setLevel(logging.DEBUG)
self.scheduler.queue.addSubQueue(self.pollwritepriority, PollEvent.createMatcher(category=PollEvent.WRITE_READY), 'write', None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(self.pollreadpriority, PollEvent.createMatcher(category=PollEvent.READ_READY), 'read', None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(self.pollerrorpriority, PollEvent.createMatcher(category=PollEvent.ERROR), 'error')
self.scheduler.queue.addSubQueue(self.connectioncontrolpriority, ConnectionControlEvent.createMatcher(), 'control')
self.scheduler.queue.addSubQueue(self.connectionwritepriority, ConnectionWriteEvent.createMatcher(), 'connectionwrite', self.totalwritelimit, self.totalwritelimit, CBQueue.AutoClassQueue.initHelper('connection', self.preservefornew, subqueuelimit = self.writelimitperconnection))
self.scheduler.queue.addSubQueue(self.streamdatapriority, StreamDataEvent.createMatcher(), 'streamdata', self.streamdatalimit, self.streamdatalimit, CBQueue.AutoClassQueue.initHelper('stream', self.preservefornew, subqueuelimit = self.datalimitperstream))
self.scheduler.queue.addSubQueue(self.routinecontrolpriority, RoutineControlEvent.createMatcher(), 'routine')
self.scheduler.queue.addSubQueue(self.timerpriority, TimerEvent.createMatcher(), 'timer')
self.scheduler.queue.addSubQueue(self.resolverresppriority, ResolveResponseEvent.createMatcher(), 'resolve')
self.scheduler.queue.addSubQueue(self.resolverreqpriority, ResolveRequestEvent.createMatcher(), 'resolvereq', 16)
self.scheduler.queue.addSubQueue(self.sysctlpriority, SystemControlEvent.createMatcher(), 'sysctl')
self.scheduler.queue.addSubQueue(self.sysctllowpriority, SystemControlLowPriorityEvent.createMatcher(), 'sysctllow')
self.scheduler.queue.addSubQueue(self.moduleapicallpriority, ModuleAPICall.createMatcher(), 'moduleapi', None, None, CBQueue.AutoClassQueue.initHelper('target', 2, subqueuelimit = 5))
self.scheduler.queue.addSubQueue(self.moduleapireplypriority, ModuleAPIReply.createMatcher(), 'moduleapireply')
self.scheduler.queue.addSubQueue(self.modulenotifypriority, ModuleNotification.createMatcher(), 'modulenotify', None, None, CBQueue.AutoClassQueue.initHelper('target', subqueuelimit=5))
self.scheduler.queue.addSubQueue(self.moduleloadeventpriority, ModuleLoadStateChanged.createMatcher(), 'moduleload')
self.scheduler.queue.addSubQueue(self.lockpriority, LockEvent.createMatcher(), 'lock', None, None, CBQueue.AutoClassQueue.initHelper('key', subqueuelimit=1))
self.scheduler.queue.addSubQueue(self.futurepriority, FutureEvent.createMatcher(), 'future')
self.resolver = Resolver(self.scheduler, self.resolverpoolsize)
self.moduleloader = ModuleLoader(self)
class Server(Configurable):
'''
Create a server with all necessary parts
'''
_default_pollwritepriority = 700
_default_connectionwritepriority = 600
_default_pollreadpriority = 500
_default_pollerrorpriority = 800
_default_resolverresppriority = 490
_default_resolverreqpriority = 650
_default_connectioncontrolpriority = 450
_default_routinecontrolpriority = 1000
_default_streamdatapriority = 640
_default_timerpriority = 900
_default_lockpriority = 990
_default_futurepriority = 989
_default_moduleloadeventpriority = 890
_default_sysctlpriority = 2000
_default_sysctllowpriority = 10
_default_moduleapicallpriority = 630
_default_moduleapireplypriority = 420
_default_modulenotifypriority = 410
_default_totalwritelimit = 100000
_default_writelimitperconnection = 5
_default_preservefornew = 100
_default_streamdatalimit = 100000
_default_datalimitperstream = 5
_default_resolverpoolsize = 64
_default_ulimitn = 32768
_default_startup = ()
_default_debugging = False
def __init__(self):
'''
Constructor
'''
if hasattr(self, 'logging'):
if isinstance(self.logging, dict):
logging_config = dict(self.logging)
else:
logging_config = self.logging.todict()
logging_config.setdefault('disable_existing_loggers', False)
logging.config.dictConfig(logging_config)
elif hasattr(self, 'loggingconfig'):
logging.config.fileConfig(self.loggingconfig, disable_existing_loggers=False)
self.scheduler = Scheduler(DefaultPolling(), getattr(self, 'processevents', None), getattr(self, 'queuedefaultsize', None), getattr(self, 'queuemaxsize', None),
defaultQueueClass=CBQueue.AutoClassQueue.initHelper('_classname0'), defaultQueuePriority = 400)
if self.debugging:
self.scheduler.debugging = True
self.scheduler.logger.setLevel(logging.DEBUG)
self.scheduler.queue.addSubQueue(self.pollwritepriority, PollEvent.createMatcher(category=PollEvent.WRITE_READY), 'write', None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(self.pollreadpriority, PollEvent.createMatcher(category=PollEvent.READ_READY), 'read', None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(self.pollerrorpriority, PollEvent.createMatcher(category=PollEvent.ERROR), 'error')
self.scheduler.queue.addSubQueue(self.connectioncontrolpriority, ConnectionControlEvent.createMatcher(), 'control')
self.scheduler.queue.addSubQueue(self.connectionwritepriority, ConnectionWriteEvent.createMatcher(), 'connectionwrite', self.totalwritelimit, self.totalwritelimit, CBQueue.AutoClassQueue.initHelper('connection', self.preservefornew, subqueuelimit = self.writelimitperconnection))
self.scheduler.queue.addSubQueue(self.streamdatapriority, StreamDataEvent.createMatcher(), 'streamdata', self.streamdatalimit, self.streamdatalimit, CBQueue.AutoClassQueue.initHelper('stream', self.preservefornew, subqueuelimit = self.datalimitperstream))
self.scheduler.queue.addSubQueue(self.routinecontrolpriority, RoutineControlEvent.createMatcher(), 'routine')
self.scheduler.queue.addSubQueue(self.timerpriority, TimerEvent.createMatcher(), 'timer')
self.scheduler.queue.addSubQueue(self.resolverresppriority, ResolveResponseEvent.createMatcher(), 'resolve')
self.scheduler.queue.addSubQueue(self.resolverreqpriority, ResolveRequestEvent.createMatcher(), 'resolvereq', 16)
self.scheduler.queue.addSubQueue(self.sysctlpriority, SystemControlEvent.createMatcher(), 'sysctl')
self.scheduler.queue.addSubQueue(self.sysctllowpriority, SystemControlLowPriorityEvent.createMatcher(), 'sysctllow')
self.scheduler.queue.addSubQueue(self.moduleapicallpriority, ModuleAPICall.createMatcher(), 'moduleapi', None, None, CBQueue.AutoClassQueue.initHelper('target', 2, subqueuelimit = 5))
self.scheduler.queue.addSubQueue(self.moduleapireplypriority, ModuleAPIReply.createMatcher(), 'moduleapireply')
self.scheduler.queue.addSubQueue(self.modulenotifypriority, ModuleNotification.createMatcher(), 'modulenotify', None, None, CBQueue.AutoClassQueue.initHelper('target', subqueuelimit=5))
self.scheduler.queue.addSubQueue(self.moduleloadeventpriority, ModuleLoadStateChanged.createMatcher(), 'moduleload')
self.scheduler.queue.addSubQueue(self.lockpriority, LockEvent.createMatcher(), 'lock', None, None, CBQueue.AutoClassQueue.initHelper('key', subqueuelimit=1))
self.scheduler.queue.addSubQueue(self.futurepriority, FutureEvent.createMatcher(), 'future')
self.resolver = Resolver(self.scheduler, self.resolverpoolsize)
self.moduleloader = ModuleLoader(self)
def serve(self):
if self.ulimitn is not None:
try:
import resource
curr_ulimit = resource.getrlimit(resource.RLIMIT_NOFILE)
if curr_ulimit[0] >= self.ulimitn:
# We do not decrease ulimit
pass
elif curr_ulimit[1] >= self.ulimitn:
# Only increase soft limit, keep the hard limit unchanged
resource.setrlimit(resource.RLIMIT_NOFILE, (self.ulimitn, curr_ulimit[1]))
else:
try:
resource.setrlimit(resource.RLIMIT_NOFILE, (self.ulimitn, self.ulimitn))
except:
# Maybe we do not have permission to change hard limit, instead we increase soft limit to the hard limit
resource.setrlimit(resource.RLIMIT_NOFILE, (curr_ulimit[1], curr_ulimit[1]))
except:
pass
# If logging is not configured, configure it to the default (console)
logging.basicConfig()
self.resolver.start()
self.moduleloader.start()
for path in self.startup:
self.moduleloader.subroutine(self.moduleloader.loadByPath(path))
self.scheduler.main()
class Server(Configurable):
'''
Create a server with all necessary parts
'''
# Startup modules list. Should be a tuple of "package.classname" like::
#
# ('vlcp.service.sdn.viperflow.ViperFlow',
# 'vlcp.service.sdn.vrouterapi.VRouterApi')
#
# Startup modules automatically load their dependencies, so it is not necessary
# (though not an error) to write them explicitly.
#
# If server.startup is null or empty, server tries to load modules
# in __main__.
_default_startup = ()
# enable debugging log for scheduler
_default_debugging = False
# File-can-write event priority, usually means socket send() can be used
_default_pollwritepriority = 700
# ConnectionWrite events priority
_default_connectionwritepriority = 600
# File-can-read event priority, usually means data received from socket
_default_pollreadpriority = 500
# error event priority, usually means the socket is in an error status
_default_pollerrorpriority = 800
# responses from resolver
_default_resolverresppriority = 490
# requests to resolver
_default_resolverreqpriority = 650
# shutdown/reset/restart commands for connections
_default_connectioncontrolpriority = 450
# asynchronously starts a routine
_default_routinecontrolpriority = 1000
# streams (vlcp.event.stream.Stream) data
_default_streamdatapriority = 640
# timers
_default_timerpriority = 900
# a lock can be acquired
_default_lockpriority = 990
# future objects been set
_default_futurepriority = 989
# a module is loaded/unloaded
_default_moduleloadeventpriority = 890
# system high-priority events
_default_sysctlpriority = 2000
# system low-priority events
_default_sysctllowpriority = 10
# module API call
_default_moduleapicallpriority = 630
# module API response
_default_moduleapireplypriority = 420
# module notify
_default_modulenotifypriority = 410
# default connection write queue limit for all connections
_default_totalwritelimit = 100000
# connection write events limit per connection
_default_writelimitperconnection = 5
# preserve space for newly created connections in default connection write queue
_default_preservefornew = 100
# stream data limit for all streams
_default_streamdatalimit = 100000
# stream data limit per stream
_default_datalimitperstream = 5
# the default multi-threading resolver pool size
_default_resolverpoolsize = 64
# try to set open files limit (ulimit -n) to this number if it is smaller
_default_ulimitn = 32768
# Use logging.config.dictConfig with this dictionary to configure the logging system.
# It is supported in Python 2.7+
_default_logging = None
# Use logging.config.fileConfig with this file to configure the logging system.
_default_loggingconfig = None
# Force polling the sockets even if there are still unfinished events after processing
# this number of events. May be helpful for very high stress. Should be set together
# with server.queuemaxsize or/and server.queuedefaultsize to prevent memory overflow.
_default_processevents = None
# Limit the default queue size, so more events will be blocked until some events are
# processed. This further limit the processing speed for producers to keep the system
# stable on very high stress, but may slightly reduce the performance.
_default_queuedefaultsize = None
# Limit the total size of the event queue, so more events will be blocked until some events are
# processed. This further limit the processing speed for producers to keep the system
# stable on very high stress, but may slightly reduce the performance.
_default_queuemaxsize = None
def __init__(self):
'''
Constructor
'''
if hasattr(self, 'logging') and self.logging is not None:
if isinstance(self.logging, dict):
logging_config = dict(self.logging)
else:
logging_config = self.logging.todict()
logging_config.setdefault('disable_existing_loggers', False)
logging.config.dictConfig(logging_config)
elif hasattr(self, 'loggingconfig') and self.loggingconfig is not None:
logging.config.fileConfig(self.loggingconfig,
disable_existing_loggers=False)
self.scheduler = Scheduler(
DefaultPolling(),
getattr(self, 'processevents', None),
getattr(self, 'queuedefaultsize', None),
getattr(self, 'queuemaxsize', None),
defaultQueueClass=CBQueue.AutoClassQueue.initHelper('_classname0'),
defaultQueuePriority=400)
if self.debugging:
self.scheduler.debugging = True
self.scheduler.logger.setLevel(logging.DEBUG)
self.scheduler.queue.addSubQueue(
self.pollwritepriority,
PollEvent.createMatcher(category=PollEvent.WRITE_READY), 'write',
None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(
self.pollreadpriority,
PollEvent.createMatcher(category=PollEvent.READ_READY), 'read',
None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(
self.pollerrorpriority,
PollEvent.createMatcher(category=PollEvent.ERROR), 'error')
self.scheduler.queue.addSubQueue(
self.connectioncontrolpriority,
ConnectionControlEvent.createMatcher(), 'control')
self.scheduler.queue.addSubQueue(
self.connectionwritepriority, ConnectionWriteEvent.createMatcher(),
'connectionwrite', self.totalwritelimit, self.totalwritelimit,
CBQueue.AutoClassQueue.initHelper(
'connection',
self.preservefornew,
subqueuelimit=self.writelimitperconnection))
self.scheduler.queue.addSubQueue(
self.streamdatapriority, StreamDataEvent.createMatcher(),
'streamdata', self.streamdatalimit, self.streamdatalimit,
CBQueue.AutoClassQueue.initHelper(
'stream',
self.preservefornew,
subqueuelimit=self.datalimitperstream))
self.scheduler.queue.addSubQueue(self.routinecontrolpriority,
RoutineControlEvent.createMatcher(),
'routine')
self.scheduler.queue.addSubQueue(self.timerpriority,
TimerEvent.createMatcher(), 'timer')
self.scheduler.queue.addSubQueue(self.resolverresppriority,
ResolveResponseEvent.createMatcher(),
'resolve')
self.scheduler.queue.addSubQueue(self.resolverreqpriority,
ResolveRequestEvent.createMatcher(),
'resolvereq', 16)
self.scheduler.queue.addSubQueue(self.sysctlpriority,
SystemControlEvent.createMatcher(),
'sysctl')
self.scheduler.queue.addSubQueue(
self.sysctllowpriority,
SystemControlLowPriorityEvent.createMatcher(), 'sysctllow')
self.scheduler.queue.addSubQueue(
self.moduleapicallpriority, ModuleAPICall.createMatcher(),
'moduleapi', None, None,
CBQueue.AutoClassQueue.initHelper('target', 2, subqueuelimit=5))
self.scheduler.queue.addSubQueue(self.moduleapireplypriority,
ModuleAPIReply.createMatcher(),
'moduleapireply')
self.scheduler.queue.addSubQueue(
self.modulenotifypriority, ModuleNotification.createMatcher(),
'modulenotify', None, None,
CBQueue.AutoClassQueue.initHelper('target', subqueuelimit=5))
self.scheduler.queue.addSubQueue(
self.moduleloadeventpriority,
ModuleLoadStateChanged.createMatcher(), 'moduleload')
self.scheduler.queue.addSubQueue(
self.lockpriority, LockEvent.createMatcher(), 'lock', None, None,
CBQueue.AutoClassQueue.initHelper('key', subqueuelimit=1))
self.scheduler.queue.addSubQueue(self.futurepriority,
FutureEvent.createMatcher(), 'future')
self.resolver = Resolver(self.scheduler, self.resolverpoolsize)
self.moduleloader = ModuleLoader(self)
def serve(self):
"""
Start the server
"""
if self.ulimitn is not None:
try:
import resource
curr_ulimit = resource.getrlimit(resource.RLIMIT_NOFILE)
if curr_ulimit[0] >= self.ulimitn:
# We do not decrease ulimit
pass
elif curr_ulimit[1] >= self.ulimitn:
# Only increase soft limit, keep the hard limit unchanged
resource.setrlimit(resource.RLIMIT_NOFILE,
(self.ulimitn, curr_ulimit[1]))
else:
try:
resource.setrlimit(resource.RLIMIT_NOFILE,
(self.ulimitn, self.ulimitn))
except:
# Maybe we do not have permission to change hard limit, instead we increase soft limit to the hard limit
resource.setrlimit(resource.RLIMIT_NOFILE,
(curr_ulimit[1], curr_ulimit[1]))
except:
pass
# If logging is not configured, configure it to the default (console)
logging.basicConfig()
self.resolver.start()
self.moduleloader.start()
for path in self.startup:
self.moduleloader.subroutine(self.moduleloader.loadByPath(path))
self.scheduler.main()
class Server(Configurable):
'''
Create a server with all necessary parts
'''
# Startup modules list. Should be a tuple of "package.classname" like::
#
# ('vlcp.service.sdn.viperflow.ViperFlow',
# 'vlcp.service.sdn.vrouterapi.VRouterApi')
#
# Startup modules automatically load their dependencies, so it is not necessary
# (though not an error) to write them explicitly.
#
# If server.startup is null or empty, server tries to load modules
# in __main__.
_default_startup = ()
# enable debugging log for scheduler
_default_debugging = False
# File-can-write event priority, usually means socket send() can be used
_default_pollwritepriority = 700
# ConnectionWrite events priority
_default_connectionwritepriority = 600
# File-can-read event priority, usually means data received from socket
_default_pollreadpriority = 500
# error event priority, usually means the socket is in an error status
_default_pollerrorpriority = 800
# responses from resolver
_default_resolverresppriority = 490
# requests to resolver
_default_resolverreqpriority = 650
# shutdown/reset/restart commands for connections
_default_connectioncontrolpriority = 450
# asynchronously starts a routine
_default_routinecontrolpriority = 1000
# streams (vlcp.event.stream.Stream) data
_default_streamdatapriority = 640
# timers
_default_timerpriority = 900
# a lock can be acquired
_default_lockpriority = 990
# future objects been set
_default_futurepriority = 989
# a module is loaded/unloaded
_default_moduleloadeventpriority = 890
# system high-priority events
_default_sysctlpriority = 2000
# system low-priority events
_default_sysctllowpriority = 10
# module API call
_default_moduleapicallpriority = 630
# module API response
_default_moduleapireplypriority = 420
# module notify
_default_modulenotifypriority = 410
# default connection write queue limit for all connections
_default_totalwritelimit = 100000
# connection write events limit per connection
_default_writelimitperconnection = 5
# preserve space for newly created connections in default connection write queue
_default_preservefornew = 100
# stream data limit for all streams
_default_streamdatalimit = 100000
# stream data limit per stream
_default_datalimitperstream = 5
# the default multi-threading resolver pool size
_default_resolverpoolsize = 64
# try to set open files limit (ulimit -n) to this number if it is smaller
_default_ulimitn = 32768
# Use logging.config.dictConfig with this dictionary to configure the logging system.
# It is supported in Python 2.7+
_default_logging = None
# Use logging.config.fileConfig with this file to configure the logging system.
_default_loggingconfig = None
# Force polling the sockets even if there are still unfinished events after processing
# this number of events. May be helpful for very high stress. Should be set together
# with server.queuemaxsize or/and server.queuedefaultsize to prevent memory overflow.
_default_processevents = None
# Limit the default queue size, so more events will be blocked until some events are
# processed. This further limit the processing speed for producers to keep the system
# stable on very high stress, but may slightly reduce the performance.
_default_queuedefaultsize = None
# Limit the total size of the event queue, so more events will be blocked until some events are
# processed. This further limit the processing speed for producers to keep the system
# stable on very high stress, but may slightly reduce the performance.
_default_queuemaxsize = None
def __init__(self):
'''
Constructor
'''
if hasattr(self, 'logging') and self.logging is not None:
if isinstance(self.logging, dict):
logging_config = dict(self.logging)
else:
logging_config = self.logging.todict()
logging_config.setdefault('disable_existing_loggers', False)
logging.config.dictConfig(logging_config)
elif hasattr(self, 'loggingconfig') and self.loggingconfig is not None:
logging.config.fileConfig(self.loggingconfig, disable_existing_loggers=False)
self.scheduler = Scheduler(DefaultPolling(), getattr(self, 'processevents', None), getattr(self, 'queuedefaultsize', None), getattr(self, 'queuemaxsize', None),
defaultQueueClass=CBQueue.AutoClassQueue.initHelper('_classname0'), defaultQueuePriority = 400)
if self.debugging:
self.scheduler.debugging = True
self.scheduler.logger.setLevel(logging.DEBUG)
self.scheduler.queue.addSubQueue(self.pollwritepriority, PollEvent.createMatcher(category=PollEvent.WRITE_READY), 'write', None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(self.pollreadpriority, PollEvent.createMatcher(category=PollEvent.READ_READY), 'read', None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(self.pollerrorpriority, PollEvent.createMatcher(category=PollEvent.ERROR), 'error')
self.scheduler.queue.addSubQueue(self.connectioncontrolpriority, ConnectionControlEvent.createMatcher(), 'control')
self.scheduler.queue.addSubQueue(self.connectionwritepriority, ConnectionWriteEvent.createMatcher(), 'connectionwrite', self.totalwritelimit, self.totalwritelimit, CBQueue.AutoClassQueue.initHelper('connection', self.preservefornew, subqueuelimit = self.writelimitperconnection))
self.scheduler.queue.addSubQueue(self.streamdatapriority, StreamDataEvent.createMatcher(), 'streamdata', self.streamdatalimit, self.streamdatalimit, CBQueue.AutoClassQueue.initHelper('stream', self.preservefornew, subqueuelimit = self.datalimitperstream))
self.scheduler.queue.addSubQueue(self.routinecontrolpriority, RoutineControlEvent.createMatcher(), 'routine')
self.scheduler.queue.addSubQueue(self.timerpriority, TimerEvent.createMatcher(), 'timer')
self.scheduler.queue.addSubQueue(self.resolverresppriority, ResolveResponseEvent.createMatcher(), 'resolve')
self.scheduler.queue.addSubQueue(self.resolverreqpriority, ResolveRequestEvent.createMatcher(), 'resolvereq', 16)
self.scheduler.queue.addSubQueue(self.sysctlpriority, SystemControlEvent.createMatcher(), 'sysctl')
self.scheduler.queue.addSubQueue(self.sysctllowpriority, SystemControlLowPriorityEvent.createMatcher(), 'sysctllow')
self.scheduler.queue.addSubQueue(self.moduleapicallpriority, ModuleAPICall.createMatcher(), 'moduleapi', None, None, CBQueue.AutoClassQueue.initHelper('target', 2, subqueuelimit = 5))
self.scheduler.queue.addSubQueue(self.moduleapireplypriority, ModuleAPIReply.createMatcher(), 'moduleapireply')
self.scheduler.queue.addSubQueue(self.modulenotifypriority, ModuleNotification.createMatcher(), 'modulenotify', None, None, CBQueue.AutoClassQueue.initHelper('target', subqueuelimit=5))
self.scheduler.queue.addSubQueue(self.moduleloadeventpriority, ModuleLoadStateChanged.createMatcher(), 'moduleload')
self.scheduler.queue.addSubQueue(self.lockpriority, LockEvent.createMatcher(), 'lock', None, None, CBQueue.AutoClassQueue.initHelper('key', subqueuelimit=1))
self.scheduler.queue.addSubQueue(self.futurepriority, FutureEvent.createMatcher(), 'future')
self.resolver = Resolver(self.scheduler, self.resolverpoolsize)
self.moduleloader = ModuleLoader(self)
def serve(self):
"""
Start the server
"""
if self.ulimitn is not None:
try:
import resource
curr_ulimit = resource.getrlimit(resource.RLIMIT_NOFILE)
if curr_ulimit[0] >= self.ulimitn:
# We do not decrease ulimit
pass
elif curr_ulimit[1] >= self.ulimitn:
# Only increase soft limit, keep the hard limit unchanged
resource.setrlimit(resource.RLIMIT_NOFILE, (self.ulimitn, curr_ulimit[1]))
else:
try:
resource.setrlimit(resource.RLIMIT_NOFILE, (self.ulimitn, self.ulimitn))
except:
# Maybe we do not have permission to change hard limit, instead we increase soft limit to the hard limit
resource.setrlimit(resource.RLIMIT_NOFILE, (curr_ulimit[1], curr_ulimit[1]))
except:
pass
# If logging is not configured, configure it to the default (console)
logging.basicConfig()
self.resolver.start()
self.moduleloader.start()
for path in self.startup:
self.moduleloader.subroutine(self.moduleloader.loadByPath(path))
self.scheduler.main()
class Server(Configurable):
'''
Create a server with all necessary parts
'''
_default_pollwritepriority = 700
_default_connectionwritepriority = 600
_default_pollreadpriority = 500
_default_pollerrorpriority = 800
_default_resolverresppriority = 490
_default_resolverreqpriority = 650
_default_connectioncontrolpriority = 450
_default_routinecontrolpriority = 1000
_default_streamdatapriority = 640
_default_timerpriority = 900
_default_lockpriority = 990
_default_moduleloadeventpriority = 890
_default_sysctlpriority = 2000
_default_sysctllowpriority = 10
_default_moduleapicallpriority = 630
_default_moduleapireplypriority = 420
_default_modulenotifypriority = 410
_default_totalwritelimit = 100000
_default_writelimitperconnection = 5
_default_preservefornew = 100
_default_streamdatalimit = 100000
_default_datalimitperstream = 5
_default_resolverpoolsize = 64
_default_ulimitn = 32768
_default_startup = ()
_default_debugging = False
def __init__(self):
'''
Constructor
'''
if hasattr(self, 'logging'):
if isinstance(self.logging, dict):
logging_config = dict(self.logging)
else:
logging_config = self.logging.todict()
logging_config.setdefault('disable_existing_loggers', False)
logging.config.dictConfig(logging_config)
elif hasattr(self, 'loggingconfig'):
logging.config.fileConfig(self.loggingconfig, disable_existing_loggers=False)
self.scheduler = Scheduler(DefaultPolling(), getattr(self, 'processevents', None), getattr(self, 'queuedefaultsize', None), getattr(self, 'queuemaxsize', None),
defaultQueueClass=CBQueue.AutoClassQueue.initHelper('_classname0'), defaultQueuePriority = 400)
if self.debugging:
self.scheduler.debugging = True
self.scheduler.logger.setLevel(logging.DEBUG)
self.scheduler.queue.addSubQueue(self.pollwritepriority, PollEvent.createMatcher(category=PollEvent.WRITE_READY), 'write', None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(self.pollreadpriority, PollEvent.createMatcher(category=PollEvent.READ_READY), 'read', None, None, CBQueue.AutoClassQueue.initHelper('fileno'))
self.scheduler.queue.addSubQueue(self.pollerrorpriority, PollEvent.createMatcher(category=PollEvent.ERROR), 'error')
self.scheduler.queue.addSubQueue(self.connectioncontrolpriority, ConnectionControlEvent.createMatcher(), 'control')
self.scheduler.queue.addSubQueue(self.connectionwritepriority, ConnectionWriteEvent.createMatcher(), 'connectionwrite', self.totalwritelimit, self.totalwritelimit, CBQueue.AutoClassQueue.initHelper('connection', self.preservefornew, subqueuelimit = self.writelimitperconnection))
self.scheduler.queue.addSubQueue(self.streamdatapriority, StreamDataEvent.createMatcher(), 'streamdata', self.streamdatalimit, self.streamdatalimit, CBQueue.AutoClassQueue.initHelper('stream', self.preservefornew, subqueuelimit = self.datalimitperstream))
self.scheduler.queue.addSubQueue(self.routinecontrolpriority, RoutineControlEvent.createMatcher(), 'routine')
self.scheduler.queue.addSubQueue(self.timerpriority, TimerEvent.createMatcher(), 'timer')
self.scheduler.queue.addSubQueue(self.resolverresppriority, ResolveResponseEvent.createMatcher(), 'resolve')
self.scheduler.queue.addSubQueue(self.resolverreqpriority, ResolveRequestEvent.createMatcher(), 'resolvereq', 16)
self.scheduler.queue.addSubQueue(self.sysctlpriority, SystemControlEvent.createMatcher(), 'sysctl')
self.scheduler.queue.addSubQueue(self.sysctllowpriority, SystemControlLowPriorityEvent.createMatcher(), 'sysctllow')
self.scheduler.queue.addSubQueue(self.moduleapicallpriority, ModuleAPICall.createMatcher(), 'moduleapi', None, None, CBQueue.AutoClassQueue.initHelper('target', 2, subqueuelimit = 5))
self.scheduler.queue.addSubQueue(self.moduleapireplypriority, ModuleAPIReply.createMatcher(), 'moduleapireply')
self.scheduler.queue.addSubQueue(self.modulenotifypriority, ModuleNotification.createMatcher(), 'modulenotify', None, None, CBQueue.AutoClassQueue.initHelper('target', subqueuelimit=5))
self.scheduler.queue.addSubQueue(self.moduleloadeventpriority, ModuleLoadStateChanged.createMatcher(), 'moduleload')
self.scheduler.queue.addSubQueue(self.lockpriority, LockEvent.createMatcher(), 'lock', None, None, CBQueue.AutoClassQueue.initHelper('key', subqueuelimit=1))
self.resolver = Resolver(self.scheduler, self.resolverpoolsize)
self.moduleloader = ModuleLoader(self)
def serve(self):
if self.ulimitn is not None:
try:
import resource
curr_ulimit = resource.getrlimit(resource.RLIMIT_NOFILE)
if curr_ulimit[0] >= self.ulimitn:
# We do not decrease ulimit
pass
elif curr_ulimit[1] >= self.ulimitn:
# Only increase soft limit, keep the hard limit unchanged
resource.setrlimit(resource.RLIMIT_NOFILE, (self.ulimitn, curr_ulimit[1]))
else:
try:
resource.setrlimit(resource.RLIMIT_NOFILE, (self.ulimitn, self.ulimitn))
except:
# Maybe we do not have permission to change hard limit, instead we increase soft limit to the hard limit
resource.setrlimit(resource.RLIMIT_NOFILE, (curr_ulimit[1], curr_ulimit[1]))
except:
pass
# If logging is not configured, configure it to the default (console)
logging.basicConfig()
self.resolver.start()
self.moduleloader.start()
for path in self.startup:
self.moduleloader.subroutine(self.moduleloader.loadByPath(path))
self.scheduler.main()
