def Reload(self, serviceNames):
"""Reload services. Use names, not full guids."""
self._BuildClassMap()
if not serviceNames:
return
self.LogWarn('Reloading services: %s' % ', '.join(serviceNames))
for each in serviceNames:
if each not in self.services:
continue
if getattr(self.services[each], '__update_on_reload__', True):
continue
ms = blue.MemStream()
try:
try:
self.StopService(each, 0, ms)
finally:
if self.services.has_key(each):
del self.services[each]
self.GetService(each, ms)
except Exception:
log.LogException('Trying to reload service: %s' % each)
sys.exc_clear()
self.LogWarn('Reloading services - Done')
def Reload(self, serviceList):
import blue
self._BuildClassMap()
if len(serviceList):
print 'Reloading services'
for each in serviceList:
if each not in self.services or each in self.services and getattr(
self.services[each], '__update_on_reload__', True):
continue
ms = blue.MemStream()
try:
try:
self.StopService(each, 0, ms)
finally:
if self.services.has_key(each):
del self.services[each]
self.GetService(each, ms)
except Exception:
log.LogException("Trying to reload service '%s" % each)
sys.exc_clear()
if len(serviceList):
print 'Reloading services - Done'
def HotStartService(self, serviceName):
import blue
ms = blue.MemStream()
self.StopService(serviceName, ms)
nasty.ReloadClass(self.ParseServiceClass(serviceName))
self.StartService(serviceName, ms)
def Stop(self):
self.logChannel.Log('ServiceManager.Stop(), stopping services')
dag = DAG()
for k, v in self.services.iteritems():
depends = v.__dependencies__ + getattr(
v, '__exitdependencies__', []) + getattr(
v, '__startupdependencies__', [])
for d in depends:
if type(d) is not str:
d = d[0]
if d in self.services:
dag.InsertEdge(k, d)
dag.Invert()
self.logChannel.Log('== BEGIN SERVICE LIST ==')
order = []
while dag.graph:
leaves = dag.Leaves()
if not leaves:
break
order.extend(leaves)
for l in leaves:
dag.RemoveNode(l)
self.logChannel.Log('==leaves==')
self.logChannel.Log(','.join(leaves))
if dag.graph:
leaves = dag.graph.keys()
order.extend(leaves)
self.logChannel.Log('==nonleaves==')
self.logChannel.Log(','.join(leaves))
self.logChannel.Log('== ENDOF SERVICE LIST ==')
self.run = 0
import blue
old_block_trap = stackless.getcurrent().block_trap
stackless.getcurrent().block_trap = 1
self.state = service.SERVICE_STOP_PENDING
try:
for k in order:
try:
v = self.services[k]
except KeyError:
self.LogWarn(
'Warning, the service', k,
'has been stopped already but something that depends on it might still be running!'
)
sys.exc_clear()
continue
if not hasattr(v, 'state'):
self.logChannel.Log(
"ServiceManager.Stop(), service '" + str(k) +
" doesn't have state therefore has already stopped")
elif v.state not in (service.SERVICE_STOPPED,
service.SERVICE_STOP_PENDING):
self.logChannel.Log(
"ServiceManager.Stop(), stopping service '" + str(k) +
"'")
try:
v.state = service.SERVICE_STOP_PENDING
for notify in v.__notifyevents__:
self.notify[notify].remove(v)
v.Stop(blue.MemStream())
except StandardError:
log.LogException()
sys.exc_clear()
finally:
v.state = service.SERVICE_STOPPED
else:
self.logChannel.Log("ServiceManager.Stop(), service '" +
str(k) + "' is already stopping")
finally:
stackless.getcurrent().block_trap = old_block_trap
self.state = service.SERVICE_STOPPED
for v in self.services.itervalues():
for a in v.__dict__.keys():
if a not in ('logChannel', 'logContexts', 'state'):
delattr(v, a)
self.logChannel.Log('ServiceManager.Stop(), services stopped.')
