"""ClusterClient: Master for mutli-piping or PC clusters. """
from pandac.PandaModules import *
from ClusterMsgs import *
from ClusterConfig import *
from direct.directnotify import DirectNotifyGlobal
from direct.showbase import DirectObject
from direct.task import Task
import os
class ClusterClient(DirectObject.DirectObject):
notify = DirectNotifyGlobal.directNotify.newCategory("ClusterClient")
MGR_NUM = 1000000
def __init__(self, configList, clusterSyncFlag):
# Set name so cluster __call__ function can be used in Intervals
self.__name__ = 'cluster'
# First start up servers using direct daemon
# What is the name of the client machine?
clusterClientDaemonHost = base.config.GetString(
'cluster-client-daemon', 'None')
if clusterClientDaemonHost == 'None':
clusterClientDaemonHost = os.popen('uname -n').read()
clusterClientDaemonHost = clusterClientDaemonHost.replace('\n', '')
# What daemon port are we using to communicate between client/servers
clusterClientDaemonPort = base.config.GetInt(
'cluster-client-daemon-port', CLUSTER_DAEMON_PORT)
# Create a daemon
self.daemon = DirectD()
# Start listening for the response
self.daemon.listenTo(clusterClientDaemonPort)
# Contact server daemons and start up remote server application
for serverConfig in configList:
# First kill existing application
self.daemon.tellServer(serverConfig.serverName,
serverConfig.serverDaemonPort,
'ka')
# Now start up new application
serverCommand = (SERVER_STARTUP_STRING %
(serverConfig.serverMsgPort,
clusterSyncFlag,
clusterClientDaemonHost,
clusterClientDaemonPort))
self.daemon.tellServer(serverConfig.serverName,
serverConfig.serverDaemonPort,
serverCommand)
print 'Begin waitForServers'
if not self.daemon.waitForServers(len(configList)):
print 'Cluster Client, no response from servers'
print 'End waitForServers'
self.qcm=QueuedConnectionManager()
self.serverList = []
self.serverQueues = []
self.msgHandler = ClusterMsgHandler(ClusterClient.MGR_NUM, self.notify)
# A dictionary of objects that can be accessed by name
self.objectMappings = {}
self.objectHasColor = {}
# a dictionary of name objects and the corresponding names of
# objects they are to control on the server side
self.controlMappings = {}
self.controlOffsets = {}
self.taggedObjects = {}
self.controlPriorities = {}
self.sortedControlMappings = []
for serverConfig in configList:
server = DisplayConnection(
self.qcm, serverConfig.serverName,
serverConfig.serverMsgPort, self.msgHandler)
if server == None:
self.notify.error('Could not open %s on %s port %d' %
(serverConfig.serverConfigName,
serverConfig.serverName,
serverConfig.serverMsgPort))
else:
self.notify.debug('send cam pos')
#server.sendMoveCam(Point3(0), Vec3(0))
self.notify.debug('send cam offset')
server.sendCamOffset(serverConfig.xyz, serverConfig.hpr)
if serverConfig.fFrustum:
self.notify.debug('send cam frustum')
server.sendCamFrustum(serverConfig.focalLength,
serverConfig.filmSize,
serverConfig.filmOffset)
self.serverList.append(server)
self.serverQueues.append([])
self.notify.debug('pre startTimeTask')
self.startSynchronizeTimeTask()
self.notify.debug('pre startMoveCam')
self.startMoveCamTask()
self.notify.debug('post startMoveCam')
self.startMoveSelectedTask()
def startReaderPollTask(self):
""" Task to handle datagrams from server """
# Run this task just after the listener poll task
taskMgr.add(self._readerPollTask, "clientReaderPollTask", -39)
def _readerPollTask(self, state):
""" Non blocking task to read all available datagrams """
for i in range(len(self.serverList)):
server = self.serverList[i]
datagrams = server.poll()
for data in datagrams:
self.handleDatagram(data[0],data[1],i)
return Task.cont
def startControlObjectTask(self):
self.notify.debug("moving control objects")
taskMgr.add(self.controlObjectTask,"controlObjectTask",50)
def startSynchronizeTimeTask(self):
self.notify.debug('broadcasting frame time')
taskMgr.add(self.synchronizeTimeTask, "synchronizeTimeTask", -40)
def synchronizeTimeTask(self, task):
frameCount = globalClock.getFrameCount()
frameTime = globalClock.getFrameTime()
dt = globalClock.getDt()
for server in self.serverList:
server.sendTimeData(frameCount, frameTime, dt)
return Task.cont
def startMoveCamTask(self):
self.notify.debug('adding move cam')
taskMgr.add(self.moveCameraTask, "moveCamTask", 49)
def controlObjectTask(self, task):
for pair in self.sortedControlMappings:
object = pair[1]
name = self.controlMappings[object][0]
serverList = self.controlMappings[object][1]
if (object in self.objectMappings):
self.moveObject(self.objectMappings[object],name,serverList,
self.controlOffsets[object], self.objectHasColor[object])
self.sendNamedMovementDone()
return Task.cont
def sendNamedMovementDone(self, serverList = None):
if (serverList == None):
serverList = range(len(self.serverList))
for server in serverList:
self.serverList[server].sendNamedMovementDone()
def redoSortedPriorities(self):
self.sortedControlMappings = []
for key in self.controlMappings:
self.sortedControlMappings.append([self.controlPriorities[key],
key])
self.sortedControlMappings.sort()
def moveObject(self, nodePath, object, serverList, offset, hasColor = True):
self.notify.debug('moving object '+object)
xyz = nodePath.getPos(render) + offset
hpr = nodePath.getHpr(render)
scale = nodePath.getScale(render)
hidden = nodePath.isHidden()
if (hasColor):
color = nodePath.getColor()
else:
color = [1,1,1,1]
for server in serverList:
self.serverList[server].sendMoveNamedObject(xyz,hpr,scale,color,hidden,object)
def moveCameraTask(self, task):
self.moveCamera(
base.camera.getPos(render),
base.camera.getHpr(render))
return Task.cont
def moveCamera(self, xyz, hpr):
self.notify.debug('moving unsynced camera')
for server in self.serverList:
server.sendMoveCam(xyz, hpr)
def startMoveSelectedTask(self):
taskMgr.add(self.moveSelectedTask, "moveSelectedTask", 48)
def moveSelectedTask(self, state):
# Update cluster if current display is a cluster client
if (last is not None):
self.notify.debug('moving selected node path')
xyz = Point3(0)
hpr = VBase3(0)
scale = VBase3(1)
decomposeMatrix(last.getMat(), scale, hpr, xyz)
for server in self.serverList:
server.sendMoveSelected(xyz, hpr, scale)
return Task.cont
def addNamedObjectMapping(self,object,name,hasColor = True):
if (name not in self.objectMappings):
self.objectMappings[name] = object
self.objectHasColor[name] = hasColor
else:
self.notify.debug('attempt to add duplicate named object: '+name)
def removeObjectMapping(self,name):
if (name in self.objectMappings):
self.objectMappings.pop(name)
def addControlMapping(self,objectName,controlledName, serverList = None,
offset = None, priority = 0):
if (objectName not in self.controlMappings):
if (serverList == None):
serverList = range(len(self.serverList))
if (offset == None):
offset = Vec3(0,0,0)
self.controlMappings[objectName] = [controlledName,serverList]
self.controlOffsets[objectName] = offset
self.controlPriorities[objectName] = priority
else:
oldList = self.controlMappings[objectName]
mergedList = []
for item in oldList:
mergedList.append(item)
for item in serverList:
if (item not in mergedList):
mergedList.append(item)
self.redoSortedPriorities()
#self.notify.debug('attempt to add duplicate controlled object: '+name)
def setControlMappingOffset(self,objectName,offset):
if (objectName in self.controlMappings):
self.controlOffsets[objectName] = offset
def removeControlMapping(self,name, serverList = None):
if (name in self.controlMappings):
if (serverList == None):
self.controlMappings.pop(name)
self.controlPriorities.pop(name)
else:
list = self.controlMappings[key][1]
newList = []
for server in list:
if (server not in serverList):
newList.append(server)
self.controlMappings[key][1] = newList
if (len(newList) == 0):
self.controlMappings.pop(name)
self.controlPriorities.pop(name)
self.redoSortedPriorities()
def getNodePathFindCmd(self, nodePath):
import string
pathString = repr(nodePath)
index = string.find(pathString, '/')
if index != -1:
rootName = pathString[:index]
searchString = pathString[index+1:]
return rootName + ('.find("%s")' % searchString)
else:
return rootName
def getNodePathName(self, nodePath):
import string
pathString = repr(nodePath)
index = string.find(pathString, '/')
if index != -1:
name = pathString[index+1:]
return name
else:
return pathString
def addObjectTag(self,object,selectFunction,deselectFunction,selectArgs,deselectArgs):
newTag = {}
newTag["selectFunction"] = selectFunction
newTag["selectArgs"] = selectArgs
newTag["deselectFunction"] = deselectFunction
newTag["deselectArgs"] = deselectArgs
self.taggedObjects[object] = newTag
def removeObjectTag(self,object):
self.taggedObjects.pop(object)
def selectNodePath(self, nodePath):
name = self.getNodePathName(nodePath)
if name in self.taggedObjects:
taskMgr.remove("moveSelectedTask")
tag = self.taggedObjects[name]
function = tag["selectFunction"]
args = tag["selectArgs"]
if (function != None):
function(*args)
else:
self(self.getNodePathFindCmd(nodePath) + '.select()', 0)
def deselectNodePath(self, nodePath):
name = self.getNodePathName(nodePath)
if name in self.taggedObjects:
tag = self.taggedObjects[name]
function = tag["deselectFunction"]
args = tag["deselectArgs"]
if (function != None):
function(*args)
self.startMoveSelectedTask()
self(self.getNodePathFindCmd(nodePath) + '.deselect()', 0)
def sendCamFrustum(self, focalLength, filmSize, filmOffset, indexList=[]):
if indexList:
serverList = [self.serverList[i] for i in indexList]
else:
serverList = self.serverList
for server in serverList:
self.notify.debug('updating camera frustum')
server.sendCamFrustum(focalLength, filmSize, filmOffset)
def loadModel(self, nodePath):
pass
def __call__(self, commandString, fLocally = 1, serverList = []):
# Execute remotely
if serverList:
# Passed in list of servers
for serverNum in serverList:
self.serverList[serverNum].sendCommandString(commandString)
else:
# All servers
for server in self.serverList:
server.sendCommandString(commandString)
if fLocally:
# Execute locally
exec(commandString, __builtins__)
def handleDatagram(self,dgi,type,server):
if (type == CLUSTER_NONE):
pass
elif (type == CLUSTER_NAMED_OBJECT_MOVEMENT):
self.serverQueues[server].append(self.msgHandler.parseNamedMovementDatagram(dgi))
#self.handleNamedMovement(dgi)
# when we recieve a 'named movement done' packet from a server we handle
# all of its messages
elif (type == CLUSTER_NAMED_MOVEMENT_DONE):
self.handleMessageQueue(server)
else:
self.notify.warning("Received unsupported packet type:" % type)
return type
def handleMessageQueue(self,server):
list = self.serverQueues[server]
# handle all messages in the queue
for data in list:
#print dgi
self.handleNamedMovement(data)
# clear the queue
self.serverQueues[server] = []
def handleNamedMovement(self, data):
""" Update cameraJig position to reflect latest position """
(name,x, y, z, h, p, r, sx, sy, sz,red,g,b,a, hidden) = data
#print "name"
#if (name == "camNode"):
# print x,y,z,h,p,r, sx, sy, sz,red,g,b,a, hidden
if (name in self.objectMappings):
self.objectMappings[name].setPosHpr(render, x, y, z, h, p, r)
self.objectMappings[name].setScale(render,sx,sy,sz)
if (self.objectHasColor[name]):
self.objectMappings[name].setColor(red,g,b,a)
if (hidden):
self.objectMappings[name].hide()
else:
self.objectMappings[name].show()
else:
self.notify.debug("recieved unknown named object command: "+name)
def exit(self):
# Execute remotely
for server in self.serverList:
server.sendExit()
# Execute locally
import sys
sys.exit()
class ClusterClientSync(ClusterClient):
def __init__(self, configList, clusterSyncFlag):
ClusterClient.__init__(self, configList, clusterSyncFlag)
#I probably don't need this
self.waitForSwap = 0
self.ready = 0
print "creating synced client"
self.startSwapCoordinatorTask()
def startSwapCoordinatorTask(self):
taskMgr.add(self.swapCoordinator, "clientSwapCoordinator", 51)
def swapCoordinator(self, task):
self.ready = 1
if self.waitForSwap:
self.waitForSwap=0
self.notify.debug(
"START get swaps----------------------------------")
for server in self.serverList:
server.getSwapReady()
self.notify.debug(
"----------------START swap now--------------------")
for server in self.serverList:
server.sendSwapNow()
self.notify.debug(
"------------------------------START swap----------")
base.graphicsEngine.flipFrame()
self.notify.debug(
"------------------------------------------END swap")
#print "syncing"
return Task.cont
def moveCamera(self, xyz, hpr):
if self.ready:
self.notify.debug('moving synced camera')
ClusterClient.moveCamera(self, xyz, hpr)
self.waitForSwap=1
class DisplayConnection:
def __init__(self, qcm, serverName, port, msgHandler):
self.msgHandler = msgHandler
gameServerTimeoutMs = base.config.GetInt(
"cluster-server-timeout-ms", 300000)
# A giant 300 second timeout.
self.tcpConn = qcm.openTCPClientConnection(
serverName, port, gameServerTimeoutMs)
# Test for bad connection
if self.tcpConn == None:
return None
else:
self.tcpConn.setNoDelay(1)
self.qcr=QueuedConnectionReader(qcm, 0)
self.qcr.addConnection(self.tcpConn)
self.cw=ConnectionWriter(qcm, 0)
def poll(self):
""" Non blocking task to read all available datagrams """
dataGrams = []
while 1:
(datagram, dgi, type) = self.msgHandler.nonBlockingRead(self.qcr)
# Queue is empty, done for now
if type is CLUSTER_NONE:
break
else:
# Got a datagram, add it to the list
dataGrams.append([dgi, type, datagram])
return dataGrams
def sendCamOffset(self, xyz, hpr):
ClusterClient.notify.debug("send cam offset...")
ClusterClient.notify.debug(("packet %d xyz, hpr=%f %f %f %f %f %f" %
(self.msgHandler.packetNumber, xyz[0], xyz[1], xyz[2],
hpr[0], hpr[1], hpr[2])))
datagram = self.msgHandler.makeCamOffsetDatagram(xyz, hpr)
self.cw.send(datagram, self.tcpConn)
def sendCamFrustum(self, focalLength, filmSize, filmOffset):
ClusterClient.notify.info("send cam frustum...")
ClusterClient.notify.info(
(("packet %d" % self.msgHandler.packetNumber) +
(" fl, fs, fo=%0.3f, (%0.3f, %0.3f), (%0.3f, %0.3f)" %
(focalLength, filmSize[0], filmSize[1],
filmOffset[0], filmOffset[1])))
)
datagram = self.msgHandler.makeCamFrustumDatagram(
focalLength, filmSize, filmOffset)
self.cw.send(datagram, self.tcpConn)
def sendNamedMovementDone(self):
datagram = self.msgHandler.makeNamedMovementDone()
self.cw.send(datagram, self.tcpConn)
def sendMoveNamedObject(self, xyz, hpr, scale, color, hidden, name):
ClusterClient.notify.debug("send named object move...")
ClusterClient.notify.debug(("packet %d xyz, hpr=%f %f %f %f %f %f" %
(self.msgHandler.packetNumber, xyz[0], xyz[1], xyz[2],
hpr[0], hpr[1], hpr[2])))
datagram = self.msgHandler.makeNamedObjectMovementDatagram(xyz,hpr,scale,
color,hidden,
name)
self.cw.send(datagram, self.tcpConn)
def sendMoveCam(self, xyz, hpr):
ClusterClient.notify.debug("send cam move...")
ClusterClient.notify.debug(("packet %d xyz, hpr=%f %f %f %f %f %f" %
(self.msgHandler.packetNumber, xyz[0], xyz[1], xyz[2],
hpr[0], hpr[1], hpr[2])))
datagram = self.msgHandler.makeCamMovementDatagram(xyz, hpr)
self.cw.send(datagram, self.tcpConn)
def sendMoveSelected(self, xyz, hpr, scale):
ClusterClient.notify.debug("send move selected...")
ClusterClient.notify.debug(
"packet %d xyz, hpr=%f %f %f %f %f %f %f %f %f" %
(self.msgHandler.packetNumber,
xyz[0], xyz[1], xyz[2],
hpr[0], hpr[1], hpr[2],
scale[0], scale[1], scale[2]))
datagram = self.msgHandler.makeSelectedMovementDatagram(xyz, hpr, scale)
self.cw.send(datagram, self.tcpConn)
# the following should only be called by a synchronized cluster manger
def getSwapReady(self):
while 1:
(datagram, dgi, type) = self.msgHandler.blockingRead(self.qcr)
if type == CLUSTER_SWAP_READY:
break
else:
self.notify.warning('was expecting SWAP_READY, got %d' % type)
# the following should only be called by a synchronized cluster manger
def sendSwapNow(self):
ClusterClient.notify.debug(
"display connect send swap now, packet %d" %
self.msgHandler.packetNumber)
datagram = self.msgHandler.makeSwapNowDatagram()
self.cw.send(datagram, self.tcpConn)
def sendCommandString(self, commandString):
ClusterClient.notify.debug("send command string: %s" % commandString)
datagram = self.msgHandler.makeCommandStringDatagram(commandString)
self.cw.send(datagram, self.tcpConn)
def sendExit(self):
ClusterClient.notify.debug(
"display connect send exit, packet %d" %
self.msgHandler.packetNumber)
datagram = self.msgHandler.makeExitDatagram()
self.cw.send(datagram, self.tcpConn)
def sendTimeData(self, frameCount, frameTime, dt):
ClusterClient.notify.debug("send time data...")
datagram = self.msgHandler.makeTimeDataDatagram(
frameCount, frameTime, dt)
self.cw.send(datagram, self.tcpConn)
class ClusterConfigItem:
def __init__(self, serverConfigName, serverName,
serverDaemonPort, serverMsgPort):
self.serverConfigName = serverConfigName
self.serverName = serverName
self.serverDaemonPort = serverDaemonPort
self.serverMsgPort = serverMsgPort
# Camera Offset
self.xyz = Vec3(0)
self.hpr = Vec3(0)
# Camera Frustum Data
self.fFrustum = 0
self.focalLength = None
self.filmSize = None
self.filmOffset = None
def setCamOffset(self, xyz, hpr):
self.xyz = xyz
self.hpr = hpr
def setCamFrustum(self, focalLength, filmSize, filmOffset):
self.fFrustum = 1
self.focalLength = focalLength
self.filmSize = filmSize
self.filmOffset = filmOffset
def createClusterClient():
# setup camera offsets based on cluster-config
clusterConfig = base.config.GetString('cluster-config', 'single-server')
# No cluster config specified!
if clusterConfig not in ClientConfigs:
base.notify.warning(
'createClusterClient: %s cluster-config is undefined.' %
clusterConfig)
return None
# Get display config for each server in the cluster
displayConfigs = []
configList = ClientConfigs[clusterConfig]
numConfigs = len(configList)
for i in range(numConfigs):
configData = configList[i]
displayName = configData.get('display name', ('display%d' % i))
displayMode = configData.get('display mode', 'server')
# Init Cam Offset
pos = configData.get('pos', Vec3(0))
hpr = configData.get('hpr', Vec3(0))
# Init Frustum if specified
fl = configData.get('focal length', None)
fs = configData.get('film size', None)
fo = configData.get('film offset', None)
if displayMode == 'client':
#lens.setInterocularDistance(pos[0])
base.cam.setPos(pos)
lens = base.cam.node().getLens()
lens.setViewHpr(hpr)
if fl is not None:
lens.setFocalLength(fl)
if fs is not None:
lens.setFilmSize(fs[0], fs[1])
if fo is not None:
lens.setFilmOffset(fo[0], fo[1])
else:
serverConfigName = 'cluster-server-%s' % displayName
serverName = base.config.GetString(serverConfigName, '')
if serverName == '':
base.notify.warning(
'%s undefined in Configrc: expected by %s display client.'%
(serverConfigName, clusterConfig))
base.notify.warning('%s will not be used.' % serverConfigName)
else:
# Daemon port
serverDaemonPortConfigName = (
'cluster-server-daemon-port-%s' % displayName)
serverDaemonPort = base.config.GetInt(
serverDaemonPortConfigName,
CLUSTER_DAEMON_PORT)
# TCP Server port
serverMsgPortConfigName = (
'cluster-server-msg-port-%s' % displayName)
serverMsgPort = base.config.GetInt(serverMsgPortConfigName,
CLUSTER_SERVER_PORT)
cci = ClusterConfigItem(
serverConfigName,
serverName,
serverDaemonPort,
serverMsgPort)
# Init cam offset
cci.setCamOffset(pos, hpr)
# Init frustum if specified
if fl and fs and fo:
cci.setCamFrustum(fl, fs, fo)
displayConfigs.append(cci)
# Create Cluster Managers (opening connections to servers)
# Are the servers going to be synced?
if base.clusterSyncFlag:
base.notify.warning('autoflip')
base.graphicsEngine.setAutoFlip(0)
base.notify.warning('ClusterClientSync')
return ClusterClientSync(displayConfigs, base.clusterSyncFlag)
else:
return ClusterClient(displayConfigs, base.clusterSyncFlag)
class DummyClusterClient(DirectObject.DirectObject):
""" Dummy class to handle command strings when not in cluster mode """
notify = DirectNotifyGlobal.directNotify.newCategory("DummyClusterClient")
def __init__(self):
pass
def __call__(self, commandString, fLocally = 1, serverList = None):
if fLocally:
# Execute locally
exec(commandString, __builtins__)