src/Container/SALOME_ComponentPy.py

   1 #! /usr/bin/env python
   2 #
   3 #  SALOME Container : implementation of container and engine for Kernel
   4 #
   5 #  Copyright (C) 2003  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   6 #  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   7 #
   8 #  This library is free software; you can redistribute it and/or
   9 #  modify it under the terms of the GNU Lesser General Public
  10 #  License as published by the Free Software Foundation; either
  11 #  version 2.1 of the License.
  12 #
  13 #  This library is distributed in the hope that it will be useful,
  14 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 #  Lesser General Public License for more details.
  17 #
  18 #  You should have received a copy of the GNU Lesser General Public
  19 #  License along with this library; if not, write to the Free Software
  20 #  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21 #
  22 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  23 #
  24 #
  25 #
  26 #  File   : SALOME_ComponentPy.py
  27 #  Author : Paul RASCLE, EDF
  28 #  Module : SALOME
  29 #  $Header$
  30
  31 import os
  32 import sys
  33 import time
  34 import string
  35 import signal
  36 from omniORB import CORBA, PortableServer
  37 import Engines, Engines__POA
  38 import Registry
  39 from Utils_Identity import *
  40 from SALOME_NamingServicePy import *
  41 from libNOTIFICATION import *
  42
  43 from SALOME_utilities import *
  44
  45 from thread import *
  46
  47 #=============================================================================
  48
  49 _Sleeping = 0
  50
  51 #define an implementation of the component interface
  52
  53 class SALOME_ComponentPy_i (Engines__POA.Component):
  54     _orb = None
  55     _poa = None
  56     _fieldsDict = []
  57     _studyId = -1
  58
  59     #-------------------------------------------------------------------------
  60
  61     def __init__ (self, orb, poa, contID, containerName,
  62                   instanceName, interfaceName, notif=0):
  63         # Notif for notification services
  64         # NOT YET IMPLEMENTED
  65         MESSAGE(  "SALOME_ComponentPy_i::__init__" + " " + str (containerName) + " " + str(instanceName) + " " + str(interfaceName) )
  66         self._orb = orb
  67         self._poa = poa
  68         self._instanceName = instanceName
  69         self._interfaceName = interfaceName
  70         self._containerName = containerName
  71         self._notif = notif
  72         self._myConnexionToRegistry = 0
  73         self._graphName = ''
  74         self._nodeName = ''
  75         self._serviceName = ''
  76         self._ThreadId = 0
  77         self._StartUsed = 0
  78         self._ThreadCpuUsed = 0
  79         self._Executed = 0
  80         self._contId = contID
  81
  82         naming_service = SALOME_NamingServicePy_i(self._orb)
  83         myMachine=getShortHostName()
  84         Component_path = self._containerName + "/" + self._instanceName
  85         MESSAGE(  'SALOME_ComponentPy_i Register' + str( Component_path ) )
  86         id_o = poa.activate_object(self)
  87         compo_o = poa.id_to_reference(id_o)
  88         naming_service.Register(compo_o, Component_path)
  89
  90         # Add componentinstance to registry
  91         obj = naming_service.Resolve('/Registry')
  92         if obj is None:
  93             MESSAGE(  "Registry Reference is invalid" )
  94         else:
  95             regist = obj._narrow(Registry.Components)
  96             if regist is None:
  97                 MESSAGE(  "Registry Reference is invalid" )
  98             else:
  99                 ior = orb.object_to_string(contID)
 100                 MESSAGE(  ior )
 101
 102                 lesInfos = Identity(self._instanceName)
 103                 infos = Registry.Infos(lesInfos._name,
 104                                        lesInfos._pid,
 105                                        lesInfos._machine,
 106                                        lesInfos._adip,
 107                                        lesInfos._uid,
 108                                        lesInfos._pwname,
 109                                        int(lesInfos._tc_start),
 110                                        0,0,0,
 111                                        lesInfos._cdir,
 112                                        -1,
 113                                        ior)
 114
 115                 res = regist.add(infos)
 116
 117         self._notifSupplier = NOTIFICATION_Supplier_Swig(instanceName, notif)
 118
 119     #-------------------------------------------------------------------------
 120
 121     def _get_instanceName(self):
 122         MESSAGE(  "SALOME_ComponentPy_i::_get_instanceName" )
 123         return self._instanceName
 124
 125     #-------------------------------------------------------------------------
 126
 127     def _get_interfaceName(self):
 128         MESSAGE(  "SALOME_ComponentPy_i::_get_interfaceName" )
 129         return self._interfaceName
 130
 131     #-------------------------------------------------------------------------
 132
 133     def ping(self):
 134         MESSAGE(  "SALOME_ComponentPy_i::ping() pid " + str(os.getpid()) )
 135
 136     #-------------------------------------------------------------------------
 137
 138     def setProperties(self, dico):
 139         self._fieldsDict = dico
 140
 141     #-------------------------------------------------------------------------
 142
 143     def getProperties(self):
 144         return self._fieldsDict
 145
 146     #-------------------------------------------------------------------------
 147
 148     def destroy(self):
 149         MESSAGE(  "SALOME_ComponentPy_i::destroy" )
 150         id = self._poa.servant_to_id(self)
 151         self._poa.deactivate_object(id)
 152
 153     #-------------------------------------------------------------------------
 154
 155     def GetContainerRef(self):
 156         MESSAGE(  "SALOME_ComponentPy_i::GetContainerRef" )
 157         #corbaObj_ptr = self._poa.id_to_reference(self._contId)
 158         #return corbaObj_ptr._narrow(Engines.Container)
 159         return self._contId._narrow(Engines.Container)
 160
 161     #-------------------------------------------------------------------------
 162
 163     def beginService(self , serviceName ):
 164         MESSAGE(  "Send BeginService notification for " + str(serviceName) + " for graph/node " + str(self._graphName) + " " + str(self._nodeName) )
 165         MESSAGE(  "Component instance : " + str ( self._instanceName ) )
 166         self._serviceName = str(serviceName)
 167         self._ThreadId = get_ident()
 168         self._StartUsed = 0
 169         self._StartUsed = self.CpuUsed_impl()
 170         self._ThreadCpuUsed = 0
 171         self._Executed = 1
 172         MESSAGE( "SALOME_ComponentPy_i::beginService _StartUsed " + str( self._ThreadId ) + " " + str( self._StartUsed ) )
 173
 174
 175     #-------------------------------------------------------------------------
 176
 177     def endService(self , serviceName ):
 178         MESSAGE(  "Send EndService notification for " + str( self._ThreadId ) + " " + str(serviceName) + " for graph/node " + str(self._graphName) + " " + str(self._nodeName) + " CpuUsed " + str( self.CpuUsed_impl() ) )
 179         MESSAGE(  "Component instance : " + str(self._instanceName) )
 180
 181     #-------------------------------------------------------------------------
 182
 183     def sendMessage(self , event_type , message ):
 184         self._notifSupplier.Send(self.graphName(), self.nodeName(), event_type, message)
 185
 186     #-------------------------------------------------------------------------
 187
 188     def Names(self , GraphName , NodeName ):
 189         MESSAGE(  "SALOME_ComponentPy_i::Names" + str(GraphName) + str(NodeName) )
 190         self._graphName = GraphName
 191         self._nodeName = NodeName
 192
 193     #-------------------------------------------------------------------------
 194
 195     def graphName(self):
 196         return self._graphName
 197
 198     #-------------------------------------------------------------------------
 199
 200     def nodeName(self):
 201         return self._nodeName
 202
 203     #-------------------------------------------------------------------------
 204
 205     def Killer(self, ThreadId, signum):
 206         #if ThreadId > 0:
 207             #if signum == 0:
 208                 #if pthread_cancel(ThreadId): <- from C++
 209                 #   return 0
 210                 #else:
 211                 #   MESSAGE()
 212             #else:
 213                 #if pthread_kill(ThreadId): <- from C++
 214                 #   return 0
 215                 #else:
 216                 #   MESSAGE()
 217         return 1
 218
 219     #-------------------------------------------------------------------------
 220
 221     def Kill_impl(self):
 222         MESSAGE(  "SALOME_ComponentPy_i::Kill_impl" )
 223         RetVal = 0
 224         if self._ThreadId > 0 & self._ThreadId != get_ident():
 225             RetVal = Killer(self._ThreadId,0)
 226             self._ThreadId = 0
 227         return RetVal
 228
 229     #-------------------------------------------------------------------------
 230
 231     def Stop_impl(self):
 232         MESSAGE(  "SALOME_ComponentPy_i::Stop_impl" )
 233         RetVal = 0
 234         if self._ThreadId > 0 & self._ThreadId != get_ident():
 235             RetVal = Killer(self._ThreadId,0)
 236             self._ThreadId = 0
 237         return RetVal
 238
 239     #-------------------------------------------------------------------------
 240
 241     def Suspend_impl(self):
 242         MESSAGE(  "SALOME_ComponentPy_i::Suspend_impl" )
 243         global _Sleeping
 244         RetVal = 0
 245         if self._ThreadId > 0 & self._ThreadId != get_ident():
 246             if _Sleeping > 0:
 247                 return 0
 248             else:
 249                 RetVal = Killer(self._ThreadId, signal.SIGINT)
 250                 if RetVal > 0:
 251                     _Sleeping = 1
 252         return RetVal
 253
 254     #-------------------------------------------------------------------------
 255
 256     def Resume_impl(self):
 257         MESSAGE(  "SALOME_ComponentPy_i::Resume_impl" )
 258         global _Sleeping
 259         RetVal = 0
 260         if self._ThreadId > 0 & self._ThreadId != get_ident():
 261             if _Sleeping > 0:
 262                 _Sleeping = 0
 263                 RetVal = 1
 264             else:
 265                 RetVal = 0
 266         return RetVal
 267
 268     #-------------------------------------------------------------------------
 269
 270     def CpuUsed_impl(self):
 271         if ( self._ThreadId | self._Executed ) :
 272             if self._ThreadId == get_ident() :
 273                 cpu = time.clock()
 274                 self._ThreadCpuUsed = int(cpu) - self._StartUsed
 275                 MESSAGE( "SALOME_ComponentPy_i::CpuUsed_impl " + self._serviceName + " " + str( int(cpu) ) + " - " + str( self._StartUsed ) + " = " + str( self._ThreadCpuUsed ) )
 276                 return self._ThreadCpuUsed
 277             MESSAGE( "SALOME_ComponentPy_i::CpuUsed_impl " + self._serviceName + " " + str( self._ThreadCpuUsed ) )
 278             return self._ThreadCpuUsed
 279         MESSAGE( "SALOME_ComponentPy_i::CpuUsed_impl self._StartUsed " + self._serviceName + " " + str(self._StartUsed) )
 280         return 0
 281
 282     #-------------------------------------------------------------------------
 283
 284     def DumpPython(self, theStudy, isPublished):
 285         aBuffer = "def RebuildData(theStudy): pass\n\0"
 286         return (aBuffer, 1)
 287
 288     #-------------------------------------------------------------------------
 289
 290     def getStudyId(self):
 291         return self._studyId