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GModel.cpp
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Christophe Geuzaine authoredChristophe Geuzaine authored
onelab.py 11.83 KiB
"""
OneLab - Copyright (C) 2011-2013 ULg-UCL
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use, copy,
modify, merge, publish, distribute, and/or sell copies of the
Software, and to permit persons to whom the Software is furnished
to do so, provided that the above copyright notice(s) and this
permission notice appear in all copies of the Software and that
both the above copyright notice(s) and this permission notice
appear in supporting documentation.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE
COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR
ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY
DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
OF THIS SOFTWARE.
Please report all bugs and problems to the public mailing list
<gmsh@geuz.org>.
"""
import socket, struct, os, sys
_VERSION = '1.05'
def file_exist(filename):
try:
with open(filename) as f:
return True
except IOError:
return False
def path(ref,inp):
if inp[0] == '/' or inp[0] == '\\' or (len(inp) > 2 and inp[1] == '\:'):
return inp # do nothing, inp is an absolute path
else: # append inp to the path of the reference file
return os.path.dirname(ref) + os.sep + inp
class _parameter() :
_membersbase = [
('name', 'string'), ('label', 'string', ''), ('help', 'string', ''),
('neverChanged', 'int', 0), ('changed', 'int', 1), ('visible', 'int', 1),
('readOnly', 'int', 0), ('attributes', ('dict', 'string', 'string'), {}),
('clients', ('list', 'string'), [])
]
_members = {
'string' : _membersbase + [
('value', 'string',''), ('kind', 'string', 'generic'), ('choices', ('list', 'string'), [])
],
'number' : _membersbase + [
('value', 'float',0),
('min', 'float', -sys.float_info.max), ('max', 'float', sys.float_info.max),
('step', 'float', 0.), ('index', 'int', -1), ('choices', ('list', 'float'), []),
('labels', ('dict', 'float', 'string'), {})
]
}
def __init__(self, type, **values) :
self.type = type
for i in _parameter._members[self.type] :
setattr(self, i[0], values[i[0]] if i[0] in values else i[2])
def tochar(self) :
def tocharitem(l, t, v) :
if t=='string' : l.append(v)
elif t =='int': l.append(str(v))
elif t=='float' : l.append('%.16g' % v)
elif t[0]=='list' :
l.append(str(len(v)))
for i in v : tocharitem(l, t[1], i)
elif t[0]=='dict' :
l.append(str(len(v)))
for i, j in v.items() :
tocharitem(l, t[1], i)
tocharitem(l, t[2], j)
msg = [_VERSION, self.type]
for i in _parameter._members[self.type] :
tocharitem(msg, i[1], getattr(self, i[0]))
return '\0'.join(msg)
def fromchar(self, msg) :
def fromcharitem(l, t) :
if t=='string' : return l.pop()
elif t =='int': return int(l.pop())
elif t=='float' : return float(l.pop())
elif t[0]=='list' : return [fromcharitem(l, t[1]) for i in range(int(l.pop()))]
elif t[0]=='dict' : return dict([(fromcharitem(l, t[1]),fromcharitem(l, t[2])) for i in range(int(l.pop()))])
l = msg.split('\0')
l.reverse()
if l.pop() != _VERSION :
print('onelab version mismatch')
if l.pop() != self.type :
print('onelab parameter type mismatch')
for p in _parameter._members[self.type]:
setattr(self, p[0], fromcharitem(l, p[1]))
return self
def modify(self, **param) :
for i in _parameter._members[self.type] :
if i[0] in param :
setattr(self, i[0], param[i[0]]) #NB: no else statement => update
class client :
_GMSH_START = 1
_GMSH_STOP = 2
_GMSH_INFO = 10
_GMSH_WARNING = 11
_GMSH_ERROR = 12
_GMSH_PROGRESS = 13
_GMSH_MERGE_FILE = 20
_GMSH_PARSE_STRING = 21
_GMSH_PARAMETER = 23
_GMSH_PARAMETER_QUERY = 24
_GMSH_CONNECT = 27
_GMSH_OLPARSE = 28
_GMSH_PARAMETER_NOT_FOUND = 29
_GMSH_PARAMETER_CLEAR = 31
_GMSH_PARAMETER_UPDATE = 32
def _receive(self) :
def buffered_receive(l) :
msg = b''
while len(msg) < l:
chunk = self.socket.recv(l - len(msg))
if not chunk :
RuntimeError('onelab socket closed')
msg += chunk
return msg
msg = buffered_receive(struct.calcsize('ii'))
t, l = struct.unpack('ii', msg)
msg = buffered_receive(l).decode('utf-8')
if t == self._GMSH_INFO :
print('onelab info : %s' % msg)
return t, msg
def _send(self, t, msg) :
m = msg.encode('utf-8')
try:
if self.socket.send(struct.pack('ii%is' %len(m), t, len(m), m)) == 0 :
RuntimeError('onelab socket closed')
except socket.error:
self.socket.close()
self._createSocket()
self.socket.send(struct.pack('ii%is' %len(m), t, len(m), m))
def _define_parameter(self, param) :
if not self.socket :
return param.value
self._send(self._GMSH_PARAMETER_QUERY, param.tochar())
(t, msg) = self._receive()
if t == self._GMSH_PARAMETER :
self._send(self._GMSH_PARAMETER_UPDATE, param.tochar()) #enrich a previous decl.
return param.fromchar(msg).value # use value from server
elif t == self._GMSH_PARAMETER_NOT_FOUND :
self._send(self._GMSH_PARAMETER, param.tochar()) #declaration
return param.value
def defineNumber(self, name, **param):
if 'labels' in param :
param["choices"] = param["labels"].keys()
p = _parameter('number', name=name, **param)
if 'value' not in param : #make the parameter readOnly
p.readOnly = 1
p.attributes={'Highlight':'AliceBlue'}
value = self._define_parameter(p)
return value
def defineString(self, name, **param):
p = _parameter('string', name=name, **param)
if 'value' not in param : #make the parameter readOnly
p.readOnly = 1
p.attributes={'Highlight':'AliceBlue'}
self._define_parameter(p)
return p.value
def setNumber(self, name, **param):
if not self.socket :
return
p = _parameter('number', name=name)
self._send(self._GMSH_PARAMETER_QUERY, p.tochar())
(t, msg) = self._receive()
if t == self._GMSH_PARAMETER :
p.fromchar(msg).modify(**param)
elif t == self._GMSH_PARAMETER_NOT_FOUND :
p.modify(**param)
self._send(self._GMSH_PARAMETER, p.tochar())
def setString(self, name, **param):
if not self.socket :
return
p = _parameter('string', name=name)
self._send(self._GMSH_PARAMETER_QUERY, p.tochar())
(t, msg) = self._receive()
if t == self._GMSH_PARAMETER : #modify an existing parameter
p.fromchar(msg).modify(**param)
elif t == self._GMSH_PARAMETER_NOT_FOUND : #create a new parameter
p.modify(**param)
p.readOnly = 1
p.attributes={'Highlight':'AliceBlue'}
self._send(self._GMSH_PARAMETER, p.tochar())
def addNumberChoice(self, name, value):
if not self.socket :
return
p = _parameter('number', name=name)
self._send(self._GMSH_PARAMETER_QUERY, p.tochar())
(t, msg) = self._receive()
if t == self._GMSH_PARAMETER :
p.fromchar(msg).choices.append(value)
elif t == self._GMSH_PARAMETER_NOT_FOUND :
print ('Unknown parameter %s' %(param.name))
self._send(self._GMSH_PARAMETER, p.tochar())
def _get_parameter(self, param, warn_if_not_found=True) :
if not self.socket :
return
self._send(self._GMSH_PARAMETER_QUERY, param.tochar())
(t, msg) = self._receive()
if t == self._GMSH_PARAMETER :
param.fromchar(msg)
elif t == self._GMSH_PARAMETER_NOT_FOUND and warn_if_not_found :
print ('Unknown parameter %s' %(param.name))
def getNumber(self, name, warn_if_not_found=True):
param = _parameter('number', name=name)
self._get_parameter(param, warn_if_not_found)
return param.value
def getString(self, name, warn_if_not_found=True):
param = _parameter('string', name=name)
self._get_parameter(param, warn_if_not_found)
return param.value
def show(self, name) :
if not self.socket :
return
param = _parameter('number', name=name)
self._send(self._GMSH_PARAMETER_QUERY, param.tochar())
(t, msg) = self._receive()
if t == self._GMSH_PARAMETER :
print (msg)
elif t == self._GMSH_PARAMETER_NOT_FOUND :
print ('Unknown parameter %s' %(name))
def openGeometry(self, filename) :
if not self.socket or not filename :
return
#if self.action == 'compute' and self.getString('Gmsh/MergedGeo', False) == filename :
if self.getString('Gmsh/MergedGeo', False) == filename :
return
else :
self.setString('Gmsh/MergedGeo', value=filename)
# if filename[0] != '/' :
# filename = os.getcwd() + "/" + filename
self._send(self._GMSH_MERGE_FILE, filename)
def mesh(self, filename) :
if not self.socket :
return
if filename[0] != '/' :
filename = os.getcwd() + "/" + filename
self._send(self._GMSH_PARSE_STRING, 'Mesh 3; Save "' + filename + '";')
def sendCommand(self, command) :
if not self.socket :
return
self._send(self._GMSH_PARSE_STRING, command + ' ;')
def mergeFile(self, filename) :
if not self.socket :
return
#self._send(self._GMSH_PARSE_STRING, 'Merge "' + filename + '";')
self._send(self._GMSH_MERGE_FILE,filename)
def sendInfo(self, msg) :
if not self.socket :
print (msg)
return
self._send(self._GMSH_INFO, msg)
def sendWarning(self, msg) :
if not self.socket :
print (msg)
return
self._send(self._GMSH_WARNING, msg)
def sendError(self, msg) :
if not self.socket :
print (msg)
return
self._send(self._GMSH_ERROR, msg)
def preProcess(self, filename) :
if not self.socket :
return
self._send(self._GMSH_OLPARSE, filename)
(t, msg) = self._receive()
if t == self._GMSH_OLPARSE :
print (msg)
def _createSocket(self) :
addr = self.addr
if '/' in addr or '\\' in addr or ':' not in addr :
self.socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
self.socket.connect(addr)
else :
self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s = addr.split(':')
self.socket.connect((s[0], int(s[1])))
def _wait_on_subclients(self):
if not self.socket :
return
while self.NumSubClients > 0:
(t, msg) = self._receive()
if t == self._GMSH_STOP :
self.NumSubClients -= 1
def run(self, name, command, arguments):
if not self.socket :
return
if self.action == "check":
msg = [name, command]
else:
msg = [name, command + ' ' + arguments]
self._send(self._GMSH_CONNECT, '\0'.join(msg))
self.NumSubClients +=1
self._wait_on_subclients() # makes the subclient blocking
def __init__(self):
self.socket = None
self.name = ""
self.addr = ""
self.NumSubClients = 0
for i, v in enumerate(sys.argv) :
if v == '-onelab':
self.name = sys.argv[i + 1]
self.addr = sys.argv[i + 2]
self._createSocket()
self._send(self._GMSH_START, str(os.getpid()))
self.action = self.getString(self.name + '/Action')
self.setNumber('IsPyMetamodel',value=1,visible=0)
if self.action == "initialize": exit(0)
def finalize(self):
# code aster python interpreter does not call the destructor at exit, it is
# necessary to call finalize() epxlicitely
if self.socket :
self._wait_on_subclients()
self._send(self._GMSH_STOP, 'Goodbye!')
self.socket.close()
self.socket = None
def __del__(self):
self.finalize()