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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# AWL simulator - Server interface
#
# Copyright 2013-2019 Michael Buesch <m@bues.ch>
#
# This program 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 of the License, or
# (at your option) any later version.
#
# This program 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 program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from __future__ import division, absolute_import, print_function, unicode_literals
import sys
import getopt
from socket import AF_INET, AF_INET6
from awlsim_loader.common import *
from awlsim_loader.core import *
from awlsim_loader.coreclient import *
from awlsim_loader.coreserver import *
import awlsim_loader.cython_helper as cython_helper
def usage():
print("awlsim-server version %s" % VERSION_STRING)
print("")
print("Usage: awlsim-server [OPTIONS] <project.awlpro>")
print("")
print("<project.awlpro> is an optional project file that will be loaded.")
print("If -w is also given, all project changes are written back to that file.")
print("")
print("Options:")
print(" -l|--listen HOST[:PORT] Listen on the specified HOST:PORT")
print(" Defaults to %s:%d" %\
(AwlSimServer.DEFAULT_HOST, AwlSimServer.DEFAULT_PORT))
print(" The special values 'all', 'any' or an empty host")
print(" can be used to listen on any interface.")
print(" -4|--force-ipv4 Force the use of IPv4.")
print(" -6|--force-ipv6 Force the use of IPv6.")
print(" -B|--background Fork a background process")
print(" -w|--rw-project Enable project file writing")
print(" -S|--allow-shutdown Allow remote system shutdown")
print(" -L|--loglevel LVL Set the log level:")
print(" 0: Log nothing")
print(" 1: Log errors")
print(" 2: Log errors and warnings")
print(" 3: Log errors, warnings and info messages (default)")
print(" 4: Verbose logging")
print(" 5: Extremely verbose logging")
def main():
global opt_listen
global opt_background
opt_project = None
opt_rwProject = False
opt_listen = (AwlSimServer.DEFAULT_HOST, AwlSimServer.DEFAULT_PORT)
opt_family = None
opt_background = False
opt_allowShutdown = False
opt_loglevel = Logging.LOG_INFO
try:
(opts, args) = getopt.getopt(sys.argv[1:],
"hl:46BwSL:",
[ "help", "listen=", "force-ipv4", "force-ipv6",
"background", "rw-project", "allow-shutdown",
"loglevel=", ])
except getopt.GetoptError as e:
printError(str(e))
usage()
return ExitCodes.EXIT_ERR_CMDLINE
for (o, v) in opts:
if o in ("-h", "--help"):
usage()
return ExitCodes.EXIT_OK
if o in ("-l", "--listen"):
try:
host, port = parseNetAddress(v)
if not host.strip() or\
host in {"any", "all"}:
host = ""
if port is None:
port = AwlSimServer.DEFAULT_PORT
opt_listen = (host, port)
except AwlSimError as e:
printError("-l|--listen: %s" % e.message)
sys.exit(1)
if o in ("-4", "--force-ipv4"):
opt_family = AF_INET
if o in ("-6", "--force-ipv6"):
opt_family = AF_INET6
if o in ("-B", "--background"):
opt_background = True
if o in ("-w", "--rw-project"):
opt_rwProject = True
if o in ("-S", "--allow-shutdown"):
opt_allowShutdown = True
if o in ("-L", "--loglevel"):
try:
opt_loglevel = int(v)
except ValueError:
printError("-L|--loglevel: Invalid log level")
sys.exit(1)
if len(args) not in (0, 1):
usage()
return ExitCodes.EXIT_ERR_CMDLINE
if args:
opt_project = args[0]
exitCode = ExitCodes.EXIT_OK
try:
Logging.setLoglevel(opt_loglevel)
commandMask = 0
if opt_allowShutdown:
commandMask |= AwlSimServer.CMDMSK_SHUTDOWN
if opt_background:
interpreter = sys.executable
assert(interpreter)
serverProcess = AwlSimServer.start(listenHost=opt_listen[0],
listenPort=opt_listen[1],
listenFamily=opt_family,
forkInterpreter=interpreter,
commandMask=commandMask,
projectFile=opt_project,
projectWriteBack=opt_rwProject)
printInfo("Started awlsim server process (PID: %d)" %\
serverProcess.pid)
else:
if cython_helper.shouldUseCython():
printInfo("*** Using accelerated CYTHON core "
"(AWLSIM_CYTHON environment variable is set)")
exitCode = AwlSimServer.start(listenHost=opt_listen[0],
listenPort=opt_listen[1],
listenFamily=opt_family,
forkInterpreter=None,
commandMask=commandMask,
projectFile=opt_project,
projectWriteBack=opt_rwProject)
except AwlSimError as e:
printError(e.getReport())
return ExitCodes.EXIT_ERR_SIM
return exitCode
if __name__ == "__main__":
sys.exit(main())
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