C++ runtime: WIP: untested PLCObject implementation. Still missing tracing.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import sys
import tempfile
import random
import shutil
from util.ProcessLogger import ProcessLogger
from util.paths import Bpath
_exec = sys.executable if "darwin" not in sys.platform else sys.executable + 'w'
LocalRuntimeInterpreterPath = os.environ.get("BEREMIZPYTHONPATH", _exec)
LocalHost = os.environ.get("BEREMIZ_LOCAL_HOST", "127.0.0.1")
class LocalRuntimeMixin():
def __init__(self, log, use_gui=True):
self.local_runtime_log = log
self.local_runtime = None
self.runtime_port = None
self.local_runtime_tmpdir = None
self.use_gui = use_gui
def StartLocalRuntime(self):
if (self.local_runtime is None) or (self.local_runtime.exitcode is not None):
# create temporary directory for runtime working directory
self.local_runtime_tmpdir = tempfile.mkdtemp()
# choose an arbitrary random port for runtime
self.runtime_port = int(random.random() * 1000) + 61131
self.local_runtime_log.write(_("Starting local runtime...\n"))
# launch local runtime
self.local_runtime = ProcessLogger(
self.local_runtime_log,[
LocalRuntimeInterpreterPath,
Bpath("Beremiz_service.py"),
"-p", str(self.runtime_port),
"-i", LocalHost,
{False: "-x 0", True: "-x 1"}[self.use_gui],
self.local_runtime_tmpdir],
no_gui=False,
timeout=500, keyword=self.local_runtime_tmpdir,
cwd=self.local_runtime_tmpdir)
self.local_runtime.spin()
return self.runtime_port
def KillLocalRuntime(self):
if self.local_runtime is not None:
# shutdown local runtime
self.local_runtime.kill(gently=False)
# clear temp dir
shutil.rmtree(self.local_runtime_tmpdir)
self.local_runtime = None