2 # -*- coding: iso-8859-1 -*-
3 # Copyright (C) 2007-2014 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, or (at your option) any later version.
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
28 import cPickle as pickle
34 logger = logging.getLogger(__name__)
35 # logger.setLevel(logging.DEBUG)
36 ch = logging.StreamHandler()
37 ch.setLevel(logging.DEBUG)
38 formatter = logging.Formatter("%(levelname)s:%(threadName)s:%(message)s")
39 ch.setFormatter(formatter)
43 logger = createLogger()
45 #------------------------------------
46 # A file locker (Linux only)
47 def __acquire_lock(lock):
48 if sys.platform == "win32":
50 # lock 1 byte: file is supposed to be zero-byte long
51 msvcrt.locking(lock.fileno(), msvcrt.LK_LOCK, 1)
54 fcntl.flock(lock, fcntl.LOCK_EX)
56 def __release_lock(lock):
57 if sys.platform == "win32":
59 msvcrt.locking(lock.fileno(), msvcrt.LK_UNLCK, 1)
62 fcntl.flock(lock, fcntl.LOCK_UN)
65 def _getConfigurationFilename():
66 omniorbUserPath = os.getenv("OMNIORB_USER_PATH")
68 from salome_utils import generateFileName
69 portmanager_config = generateFileName(omniorbUserPath,
74 lock_file = portmanager_config + "-lock"
75 return (portmanager_config, lock_file)
78 def __isPortUsed(port, busy_ports):
79 return (port in busy_ports) or __isNetworkConnectionActiveOnPort(port)
82 def __isNetworkConnectionActiveOnPort(port):
83 # :NOTE: Under windows:
84 # netstat options -l and -t are unavailable
85 # grep command is unavailable
86 from subprocess import Popen, PIPE
87 (stdout, stderr) = Popen(['netstat','-an'], stdout=PIPE).communicate()
89 buf = StringIO.StringIO(stdout)
90 ports = buf.readlines()
91 # search for TCP - LISTEN connections
93 regObj = re.compile( ".*tcp.*:([0-9]+).*:.*listen", re.IGNORECASE );
96 p = int(regObj.match(item).group(1))
97 if p == port: return True
102 def getPort(preferedPort=None):
103 logger.debug("GET PORT")
105 config_file, lock_file = _getConfigurationFilename()
106 with open(lock_file, 'w') as lock:
111 config = {'busy_ports':[]}
112 logger.debug("read configuration file")
114 with open(config_file, 'r') as f:
115 config = pickle.load(f)
116 except IOError: # empty file
119 logger.debug("load busy_ports: %s"%str(config["busy_ports"]))
122 busy_ports = config["busy_ports"]
124 if not port or __isPortUsed(port, busy_ports):
126 while __isPortUsed(port, busy_ports):
129 msg += "Can't find a free port to launch omniNames\n"
130 msg += "Try to kill the running servers and then launch SALOME again.\n"
131 raise RuntimeError, msg
133 logger.debug("found free port: %s"%str(port))
134 config["busy_ports"].append(port)
137 logger.debug("write busy_ports: %s"%str(config["busy_ports"]))
139 with open(config_file, 'w') as f:
140 pickle.dump(config, f)
147 logger.debug("get port: %s"%str(port))
151 def releasePort(port):
153 logger.debug("RELEASE PORT (%s)"%port)
155 config_file, lock_file = _getConfigurationFilename()
156 with open(lock_file, 'w') as lock:
161 config = {'busy_ports':[]}
162 logger.debug("read configuration file")
164 with open(config_file, 'r') as f:
165 config = pickle.load(f)
166 except IOError: # empty file
169 logger.debug("load busy_ports: %s"%str(config["busy_ports"]))
171 # remove port from list
172 busy_ports = config["busy_ports"]
174 if port in busy_ports:
175 busy_ports.remove(port)
176 config["busy_ports"] = busy_ports
179 logger.debug("write busy_ports: %s"%str(config["busy_ports"]))
181 with open(config_file, 'w') as f:
182 pickle.dump(config, f)
189 logger.debug("released port port: %s"%str(port))
193 config_file, lock_file = _getConfigurationFilename()
194 with open(lock_file, 'w') as lock:
199 config = {'busy_ports':[]}
200 logger.debug("read configuration file")
202 with open(config_file, 'r') as f:
203 config = pickle.load(f)
204 except IOError: # empty file
207 logger.debug("load busy_ports: %s"%str(config["busy_ports"]))
209 busy_ports = config["busy_ports"]