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         naming_service.Register(self._this(), Component_path)
  87
  88         # Add componentinstance to registry
  89         obj = naming_service.Resolve('/Registry')
  90         if obj is None:
  91             MESSAGE(  "Registry Reference is invalid" )
  92         else:
  93             regist = obj._narrow(Registry.Components)
  94             if regist is None:
  95                 MESSAGE(  "Registry Reference is invalid" )
  96             else:
  97                 ior = orb.object_to_string(contID)
  98                 MESSAGE(  ior )
  99
 100                 lesInfos = Identity(self._instanceName)
 101                 infos = Registry.Infos(lesInfos._name,
 102                                        lesInfos._pid,
 103                                        lesInfos._machine,
 104                                        lesInfos._adip,
 105                                        lesInfos._uid,
 106                                        lesInfos._pwname,
 107                                        int(lesInfos._tc_start),
 108                                        0,0,0,
 109                                        lesInfos._cdir,
 110                                        -1,
 111                                        ior)
 112
 113                 res = regist.add(infos)
 114
 115         self._notifSupplier = NOTIFICATION_Supplier_Swig(instanceName, notif)
 116
 117     #-------------------------------------------------------------------------
 118
 119     def _get_instanceName(self):
 120         MESSAGE(  "SALOME_ComponentPy_i::_get_instanceName" )
 121         return self._instanceName
 122
 123     #-------------------------------------------------------------------------
 124
 125     def _get_interfaceName(self):
 126         MESSAGE(  "SALOME_ComponentPy_i::_get_interfaceName" )
 127         return self._interfaceName
 128
 129     #-------------------------------------------------------------------------
 130
 131     def ping(self):
 132         MESSAGE(  "SALOME_ComponentPy_i::ping() pid " + str(os.getpid()) )
 133
 134     #-------------------------------------------------------------------------
 135
 136     def setProperties(self, dico):
 137         self._fieldsDict = dico
 138
 139     #-------------------------------------------------------------------------
 140
 141     def getProperties(self):
 142         return self._fieldsDict
 143
 144     #-------------------------------------------------------------------------
 145
 146     def destroy(self):
 147         MESSAGE(  "SALOME_ComponentPy_i::destroy" )
 148         self._poa.deactivate_object(self)
 149         CORBA.release(self._poa)
 150
 151     #-------------------------------------------------------------------------
 152
 153     def GetContainerRef(self):
 154         MESSAGE(  "SALOME_ComponentPy_i::GetContainerRef" )
 155         corbaObj_ptr = self._poa.id_to_reference(self._contId)
 156         return corbaObj_ptr._narrow(Engines.Container)
 157
 158     #-------------------------------------------------------------------------
 159
 160     def beginService(self , serviceName ):
 161         MESSAGE(  "Send BeginService notification for " + str(serviceName) + " for graph/node " + str(self._graphName) + " " + str(self._nodeName) )
 162         MESSAGE(  "Component instance : " + str ( self._instanceName ) )
 163         self._serviceName = str(serviceName)
 164         self._ThreadId = get_ident()
 165         self._StartUsed = 0
 166         self._StartUsed = self.CpuUsed_impl()
 167         self._ThreadCpuUsed = 0
 168         self._Executed = 1
 169         MESSAGE( "SALOME_ComponentPy_i::beginService _StartUsed " + str( self._ThreadId ) + " " + str( self._StartUsed ) )
 170
 171
 172     #-------------------------------------------------------------------------
 173
 174     def endService(self , serviceName ):
 175         MESSAGE(  "Send EndService notification for " + str( self._ThreadId ) + " " + str(serviceName) + " for graph/node " + str(self._graphName) + " " + str(self._nodeName) + " CpuUsed " + str( self.CpuUsed_impl() ) )
 176         MESSAGE(  "Component instance : " + str(self._instanceName) )
 177
 178     #-------------------------------------------------------------------------
 179
 180     def sendMessage(self , event_type , message ):
 181         self._notifSupplier.Send(self.graphName(), self.nodeName(), event_type, message)
 182
 183     #-------------------------------------------------------------------------
 184
 185     def Names(self , GraphName , NodeName ):
 186         MESSAGE(  "SALOME_ComponentPy_i::Names" + str(GraphName) + str(NodeName) )
 187         self._graphName = GraphName
 188         self._nodeName = NodeName
 189
 190     #-------------------------------------------------------------------------
 191
 192     def graphName(self):
 193         return self._graphName
 194
 195     #-------------------------------------------------------------------------
 196
 197     def nodeName(self):
 198         return self._nodeName
 199
 200     #-------------------------------------------------------------------------
 201
 202     def Killer(self, ThreadId, signum):
 203         #if ThreadId > 0:
 204             #if signum == 0:
 205                 #if pthread_cancel(ThreadId): <- from C++
 206                 #   return 0
 207                 #else:
 208                 #   MESSAGE()
 209             #else:
 210                 #if pthread_kill(ThreadId): <- from C++
 211                 #   return 0
 212                 #else:
 213                 #   MESSAGE()
 214         return 1
 215
 216     #-------------------------------------------------------------------------
 217
 218     def Kill_impl(self):
 219         MESSAGE(  "SALOME_ComponentPy_i::Kill_impl" )
 220         RetVal = 0
 221         if self._ThreadId > 0 & self._ThreadId != get_ident():
 222             RetVal = Killer(self._ThreadId,0)
 223             self._ThreadId = 0
 224         return RetVal
 225
 226     #-------------------------------------------------------------------------
 227
 228     def Stop_impl(self):
 229         MESSAGE(  "SALOME_ComponentPy_i::Stop_impl" )
 230         RetVal = 0
 231         if self._ThreadId > 0 & self._ThreadId != get_ident():
 232             RetVal = Killer(self._ThreadId,0)
 233             self._ThreadId = 0
 234         return RetVal
 235
 236     #-------------------------------------------------------------------------
 237
 238     def Suspend_impl(self):
 239         MESSAGE(  "SALOME_ComponentPy_i::Suspend_impl" )
 240         global _Sleeping
 241         RetVal = 0
 242         if self._ThreadId > 0 & self._ThreadId != get_ident():
 243             if _Sleeping > 0:
 244                 return 0
 245             else:
 246                 RetVal = Killer(self._ThreadId, signal.SIGINT)
 247                 if RetVal > 0:
 248                     _Sleeping = 1
 249         return RetVal
 250
 251     #-------------------------------------------------------------------------
 252
 253     def Resume_impl(self):
 254         MESSAGE(  "SALOME_ComponentPy_i::Resume_impl" )
 255         global _Sleeping
 256         RetVal = 0
 257         if self._ThreadId > 0 & self._ThreadId != get_ident():
 258             if _Sleeping > 0:
 259                 _Sleeping = 0
 260                 RetVal = 1
 261             else:
 262                 RetVal = 0
 263         return RetVal
 264
 265     #-------------------------------------------------------------------------
 266
 267     def CpuUsed_impl(self):
 268         if ( self._ThreadId | self._Executed ) :
 269             if self._ThreadId == get_ident() :
 270                 cpu = time.clock()
 271                 self._ThreadCpuUsed = int(cpu) - self._StartUsed
 272                 MESSAGE( "SALOME_ComponentPy_i::CpuUsed_impl " + self._serviceName + " " + str( int(cpu) ) + " - " + str( self._StartUsed ) + " = " + str( self._ThreadCpuUsed ) )
 273                 return self._ThreadCpuUsed
 274             MESSAGE( "SALOME_ComponentPy_i::CpuUsed_impl " + self._serviceName + " " + str( self._ThreadCpuUsed ) )
 275             return self._ThreadCpuUsed
 276         MESSAGE( "SALOME_ComponentPy_i::CpuUsed_impl self._StartUsed " + self._serviceName + " " + str(self._StartUsed) )
 277         return 0
 278
 279     #-------------------------------------------------------------------------
 280
 281     def DumpPython(self, theStudy, isPublished):
 282         aBuffer = "def RebuildData(theStudy): pass\n\0"
 283         return (aBuffer, 1)
 284
 285     #-------------------------------------------------------------------------
 286
 287     def getStudyId(self):
 288         return self._studyId