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._ThreadId = 0
  76         self._StartUsed = 0
  77         self._ThreadCpuUsed = 0
  78         self._Executed = 0
  79         self._contId = contID
  80
  81         naming_service = SALOME_NamingServicePy_i(self._orb)
  82         myMachine=getShortHostName()
  83         Component_path = self._containerName + "/" + self._instanceName
  84         MESSAGE(  'SALOME_ComponentPy_i Register' + str( Component_path ) )
  85         naming_service.Register(self._this(), Component_path)
  86
  87         # Add componentinstance to registry
  88         obj = naming_service.Resolve('/Registry')
  89         if obj is None:
  90             MESSAGE(  "Registry Reference is invalid" )
  91         else:
  92             regist = obj._narrow(Registry.Components)
  93             if regist is None:
  94                 MESSAGE(  "Registry Reference is invalid" )
  95             else:
  96                 ior = orb.object_to_string(contID)
  97                 MESSAGE(  ior )
  98
  99                 lesInfos = Identity(self._instanceName)
 100                 infos = Registry.Infos(lesInfos._name,
 101                                        lesInfos._pid,
 102                                        lesInfos._machine,
 103                                        lesInfos._adip,
 104                                        lesInfos._uid,
 105                                        lesInfos._pwname,
 106                                        int(lesInfos._tc_start),
 107                                        0,0,0,
 108                                        lesInfos._cdir,
 109                                        -1,
 110                                        ior)
 111
 112                 res = regist.add(infos)
 113
 114         self._notifSupplier = NOTIFICATION_Supplier_Swig(instanceName, notif)
 115
 116     #-------------------------------------------------------------------------
 117
 118     def _get_instanceName(self):
 119         MESSAGE(  "SALOME_ComponentPy_i::_get_instanceName" )
 120         return self._instanceName
 121
 122     #-------------------------------------------------------------------------
 123
 124     def _get_interfaceName(self):
 125         MESSAGE(  "SALOME_ComponentPy_i::_get_interfaceName" )
 126         return self._interfaceName
 127
 128     #-------------------------------------------------------------------------
 129
 130     def ping(self):
 131         MESSAGE(  "SALOME_ComponentPy_i::ping() pid " + str(os.getpid()) )
 132
 133     #-------------------------------------------------------------------------
 134
 135     def setProperties(self, dico):
 136         self._fieldsDict = dico
 137
 138     #-------------------------------------------------------------------------
 139
 140     def getProperties(self):
 141         return self._fieldsDict
 142
 143     #-------------------------------------------------------------------------
 144
 145     def destroy(self):
 146         MESSAGE(  "SALOME_ComponentPy_i::destroy" )
 147         self._poa.deactivate_object(self)
 148         CORBA.release(self._poa)
 149
 150     #-------------------------------------------------------------------------
 151
 152     def GetContainerRef(self):
 153         MESSAGE(  "SALOME_ComponentPy_i::GetContainerRef" )
 154         corbaObj_ptr = self._poa.id_to_reference(self._contId)
 155         return corbaObj_ptr._narrow(Engines.Container)
 156
 157     #-------------------------------------------------------------------------
 158
 159     def beginService(self , serviceName ):
 160         MESSAGE(  "Send BeginService notification for " + str(serviceName) + " for graph/node " + str(self._graphName) + " " + str(self._nodeName) )
 161         MESSAGE(  "Component instance : " + str ( self._instanceName ) )
 162         self._serviceName = str(serviceName)
 163         self._ThreadId = get_ident()
 164         self._StartUsed = 0
 165         self._StartUsed = self.CpuUsed_impl()
 166         self._ThreadCpuUsed = 0
 167         self._Executed = 1
 168         MESSAGE( "SALOME_ComponentPy_i::beginService _StartUsed " + str( self._ThreadId ) + " " + str( self._StartUsed ) )
 169
 170
 171     #-------------------------------------------------------------------------
 172
 173     def endService(self , serviceName ):
 174         MESSAGE(  "Send EndService notification for " + str( self._ThreadId ) + " " + str(serviceName) + " for graph/node " + str(self._graphName) + " " + str(self._nodeName) + " CpuUsed " + str( self.CpuUsed_impl() ) )
 175         MESSAGE(  "Component instance : " + str(self._instanceName) )
 176
 177     #-------------------------------------------------------------------------
 178
 179     def sendMessage(self , event_type , message ):
 180         self._notifSupplier.Send(self.graphName(), self.nodeName(), event_type, message)
 181
 182     #-------------------------------------------------------------------------
 183
 184     def Names(self , GraphName , NodeName ):
 185         MESSAGE(  "SALOME_ComponentPy_i::Names" + str(GraphName) + str(NodeName) )
 186         self._graphName = GraphName
 187         self._nodeName = NodeName
 188
 189     #-------------------------------------------------------------------------
 190
 191     def graphName(self):
 192         return self._graphName
 193
 194     #-------------------------------------------------------------------------
 195
 196     def nodeName(self):
 197         return self._nodeName
 198
 199     #-------------------------------------------------------------------------
 200
 201     def Killer(self, ThreadId, signum):
 202         #if ThreadId > 0:
 203             #if signum == 0:
 204                 #if pthread_cancel(ThreadId): <- from C++
 205                 #   return 0
 206                 #else:
 207                 #   MESSAGE()
 208             #else:
 209                 #if pthread_kill(ThreadId): <- from C++
 210                 #   return 0
 211                 #else:
 212                 #   MESSAGE()
 213         return 1
 214
 215     #-------------------------------------------------------------------------
 216
 217     def Kill_impl(self):
 218         MESSAGE(  "SALOME_ComponentPy_i::Kill_impl" )
 219         RetVal = 0
 220         if self._ThreadId > 0 & self._ThreadId != get_ident():
 221             RetVal = Killer(self._ThreadId,0)
 222             self._ThreadId = 0
 223         return RetVal
 224
 225     #-------------------------------------------------------------------------
 226
 227     def Stop_impl(self):
 228         MESSAGE(  "SALOME_ComponentPy_i::Stop_impl" )
 229         RetVal = 0
 230         if self._ThreadId > 0 & self._ThreadId != get_ident():
 231             RetVal = Killer(self._ThreadId,0)
 232             self._ThreadId = 0
 233         return RetVal
 234
 235     #-------------------------------------------------------------------------
 236
 237     def Suspend_impl(self):
 238         MESSAGE(  "SALOME_ComponentPy_i::Suspend_impl" )
 239         global _Sleeping
 240         RetVal = 0
 241         if self._ThreadId > 0 & self._ThreadId != get_ident():
 242             if _Sleeping > 0:
 243                 return 0
 244             else:
 245                 RetVal = Killer(self._ThreadId, signal.SIGINT)
 246                 if RetVal > 0:
 247                     _Sleeping = 1
 248         return RetVal
 249
 250     #-------------------------------------------------------------------------
 251
 252     def Resume_impl(self):
 253         MESSAGE(  "SALOME_ComponentPy_i::Resume_impl" )
 254         global _Sleeping
 255         RetVal = 0
 256         if self._ThreadId > 0 & self._ThreadId != get_ident():
 257             if _Sleeping > 0:
 258                 _Sleeping = 0
 259                 RetVal = 1
 260             else:
 261                 RetVal = 0
 262         return RetVal
 263
 264     #-------------------------------------------------------------------------
 265
 266     def CpuUsed_impl(self):
 267         if ( self._ThreadId | self._Executed ) :
 268             if self._ThreadId == get_ident() :
 269                 cpu = time.clock()
 270                 self._ThreadCpuUsed = int(cpu) - self._StartUsed
 271                 MESSAGE( "SALOME_ComponentPy_i::CpuUsed_impl " + self._serviceName + " " + str( int(cpu) ) + " - " + str( self._StartUsed ) + " = " + str( self._ThreadCpuUsed ) )
 272                 return self._ThreadCpuUsed
 273             MESSAGE( "SALOME_ComponentPy_i::CpuUsed_impl " + self._serviceName + " " + str( self._ThreadCpuUsed ) )
 274             return self._ThreadCpuUsed
 275         MESSAGE( "SALOME_ComponentPy_i::CpuUsed_impl self._StartUsed " + self._serviceName + " " + str(self._StartUsed) )
 276         return 0
 277
 278     #-------------------------------------------------------------------------
 279
 280     def DumpPython(self, theStudy, isPublished):
 281         aBuffer = "def RebuildData(theStudy): pass\n\0"
 282         return (aBuffer, 1)
 283
 284     #-------------------------------------------------------------------------
 285
 286     def getStudyId(self):
 287         return self._studyId