Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#This file is part of Beremiz, a Integrated Development Environment for
#programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
#See COPYING file for copyrights details.
#
#This library is free software; you can redistribute it and/or
#modify it under the terms of the GNU General Public
#License as published by the Free Software Foundation; either
#version 2.1 of the License, or (at your option) any later version.
#
#This library is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
#General Public License for more details.
#
#You should have received a copy of the GNU General Public
#License along with this library; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import time
import wx
import subprocess, ctypes
from threading import Timer, Lock, Thread, Semaphore
import os, sys
if os.name == 'posix':
from signal import SIGTERM, SIGKILL
class outputThread(Thread):
"""
Thread is used to print the output of a command to the stdout
"""
def __init__(self, Proc, fd, callback=None, endcallback=None):
Thread.__init__(self)
self.killed = False
self.finished = False
self.retval = None
self.Proc = Proc
self.callback = callback
self.endcallback = endcallback
self.fd = fd
def run(self):
outchunk = None
self.retval = None
while outchunk != '' and not self.killed :
outchunk = self.fd.readline()
if self.callback : self.callback(outchunk)
while self.retval is None and not self.killed :
self.retval = self.Proc.poll()
outchunk = self.fd.readline()
if self.callback : self.callback(outchunk)
while outchunk != '' and not self.killed :
outchunk = self.fd.readline()
if self.callback : self.callback(outchunk)
if self.endcallback:
try:
err = self.Proc.wait()
except:
err = self.retval
self.finished = True
self.endcallback(self.Proc.pid, err)
class ProcessLogger:
def __init__(self, logger, Command, finish_callback = None,
no_stdout = False, no_stderr = False, no_gui = True,
timeout = None, outlimit = None, errlimit = None,
endlog = None, keyword = None, kill_it = False, cwd = None,
encoding = None):
self.logger = logger
if not isinstance(Command, list):
self.Command_str = Command
self.Command = []
for i,word in enumerate(Command.replace("'",'"').split('"')):
if i % 2 == 0:
word = word.strip()
if len(word) > 0:
self.Command.extend(word.split())
else:
self.Command.append(word)
else:
self.Command = Command
self.Command_str = subprocess.list2cmdline(self.Command)
fsencoding = sys.getfilesystemencoding()
if encoding is None:
encoding = fsencoding
self.Command = [self.Command[0].encode(fsencoding)]+map(
lambda x: x.encode(encoding), self.Command[1:])
self.finish_callback = finish_callback
self.no_stdout = no_stdout
self.no_stderr = no_stderr
self.startupinfo = None
self.errlen = 0
self.outlen = 0
self.errlimit = errlimit
self.outlimit = outlimit
self.exitcode = None
self.outdata = []
self.errdata = []
self.keyword = keyword
self.kill_it = kill_it
self.finishsem = Semaphore(0)
self.endlock = Lock()
popenargs= {
"cwd":os.getcwd() if cwd is None else cwd,
"stdin":subprocess.PIPE,
"stdout":subprocess.PIPE,
"stderr":subprocess.PIPE}
if no_gui == True and wx.Platform == '__WXMSW__':
self.startupinfo = subprocess.STARTUPINFO()
self.startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
popenargs["startupinfo"] = self.startupinfo
elif wx.Platform == '__WXGTK__':
popenargs["shell"] = False
self.Proc = subprocess.Popen( self.Command, **popenargs )
self.outt = outputThread(
self.Proc,
self.Proc.stdout,
self.output,
self.finish)
self.outt.start()
self.errt = outputThread(
self.Proc,
self.Proc.stderr,
self.errors)
self.errt.start()
if timeout:
self.timeout = Timer(timeout,self.endlog)
self.timeout.start()
else:
self.timeout = None
def output(self,v):
self.outdata.append(v)
self.outlen += 1
if not self.no_stdout:
self.logger.write(v)
if (self.keyword and v.find(self.keyword)!=-1) or (self.outlimit and self.outlen > self.outlimit):
self.endlog()
def errors(self,v):
self.errdata.append(v)
self.errlen += 1
if not self.no_stderr:
self.logger.write_warning(v)
if self.errlimit and self.errlen > self.errlimit:
self.endlog()
def log_the_end(self,ecode,pid):
self.logger.write(self.Command_str + "\n")
self.logger.write_warning(_("exited with status %s (pid %s)\n")%(str(ecode),str(pid)))
def finish(self, pid,ecode):
if self.timeout: self.timeout.cancel()
self.exitcode = ecode
if self.exitcode != 0:
self.log_the_end(ecode,pid)
if self.finish_callback is not None:
self.finish_callback(self,ecode,pid)
self.finishsem.release()
def kill(self,gently=True):
self.outt.killed = True
self.errt.killed = True
if wx.Platform == '__WXMSW__':
PROCESS_TERMINATE = 1
handle = ctypes.windll.kernel32.OpenProcess(PROCESS_TERMINATE, False, self.Proc.pid)
ctypes.windll.kernel32.TerminateProcess(handle, -1)
ctypes.windll.kernel32.CloseHandle(handle)
else:
if gently:
sig=SIGTERM
else:
sig=SIGKILL
try:
os.kill(self.Proc.pid, sig)
except:
pass
self.outt.join()
self.errt.join()
def endlog(self):
if self.endlock.acquire(False):
self.finishsem.release()
if not self.outt.finished and self.kill_it:
self.kill()
def spin(self):
self.finishsem.acquire()
return [self.exitcode, "".join(self.outdata), "".join(self.errdata)]