2 # -*- coding: iso-8859-1 -*-
3 # Copyright (C) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
5 # Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
6 # CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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.
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.
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
22 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
25 import os, sys, string
28 # -----------------------------------------------------------------------------
30 # Definition des classes d'objets pour le lancement des Server CORBA
34 """Generic class for CORBA server launch"""
40 if self.args.get('xterm'):
41 self.ARGS=['xterm', '-iconic', '-sb', '-sl', '500', '-hold']
43 def __init__(self,args):
51 if self.args.get('xterm'):
52 # (Debian) send LD_LIBRARY_PATH to children shells (xterm)
53 env_ld_library_path=['env', 'LD_LIBRARY_PATH='
54 + os.getenv("LD_LIBRARY_PATH")]
55 myargs = myargs +['-T']+self.CMD[:1]+['-e'] + env_ld_library_path
56 command = myargs + self.CMD
57 #print "command = ", command
58 if sys.platform == "win32":
60 #cmd_str = "\"" + string.join(command, " ") + "\""
62 #pid = win32pm.spawnpid( cmd_str )
63 pid = win32pm.spawnpid( string.join(command, " "), '-nc' )
64 #pid = win32pm.spawnpid( string.join(command, " ") )
66 #pid = os.spawnvp(os.P_NOWAIT, command[0], command)
67 pid=self.daemonize(command)
69 #store process pid if it really exists
70 process_id[pid]=self.CMD
74 def daemonize(self,args):
75 # to daemonize a process need to do the UNIX double-fork magic
76 # see Stevens, "Advanced Programming in the UNIX Environment" for details (ISBN 0201563177)
77 # and UNIX Programming FAQ 1.7 How do I get my program to act like a daemon?
78 # http://www.erlenstar.demon.co.uk/unix/faq_2.html#SEC16
80 c2pread, c2pwrite = os.pipe()
86 #receive real pid from child
87 data=os.read(c2pread,24) #read 24 bytes
88 os.waitpid(pid,0) #remove zombie
90 # return : first parent
101 # decouple from parent environment
105 # do second fork : second child not a session leader
109 #send real pid to parent
110 os.write(c2pwrite,"%d" % pid)
112 # exit from second parent
115 print >>sys.stderr, "fork #2 failed: %d (%s)" % (e.errno, e.strerror)
116 os.write(c2pwrite,"-1")
121 os.close(0) #close stdin
122 os.open("/dev/null", os.O_RDWR) # redirect standard input (0) to /dev/null
124 os.execvp(args[0], args)
126 print >>sys.stderr, "(%s) launch failed: %d (%s)" % (args[0],e.errno, e.strerror)