runtime/PLCObject.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Wed, 03 Oct 2018 14:19:41 +0300
changeset 2425 68e7da937162
parent 2419 c081dabc0f63
child 2429 15f18dc8b56a
child 2431 6923074540dd
permissions -rwxr-xr-x
Fix 'msgid' format string with unnamed arguments cannot be properly localized
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz runtime.
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#
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
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#
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# See COPYING.Runtime file for copyrights details.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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from __future__ import absolute_import
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import thread
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from threading import Thread, Lock, Semaphore, Event, Condition
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import ctypes
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import os
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import sys
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import traceback
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from time import time
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import _ctypes  # pylint: disable=wrong-import-order
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import Pyro.core as pyro
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import six
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from runtime.typemapping import TypeTranslator
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from runtime.loglevels import LogLevelsDefault, LogLevelsCount
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from runtime import PlcStatus
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if os.name in ("nt", "ce"):
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    dlopen = _ctypes.LoadLibrary
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    dlclose = _ctypes.FreeLibrary
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elif os.name == "posix":
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    dlopen = _ctypes.dlopen
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    dlclose = _ctypes.dlclose
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def get_last_traceback(tb):
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    while tb.tb_next:
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        tb = tb.tb_next
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    return tb
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lib_ext = {
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    "linux2": ".so",
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    "win32":  ".dll",
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}.get(sys.platform, "")
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def PLCprint(message):
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    sys.stdout.write("PLCobject : "+message+"\n")
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    sys.stdout.flush()
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class job(object):
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    """
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    job to be executed by a worker
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    """
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    def __init__(self, call, *args, **kwargs):
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        self.job = (call, args, kwargs)
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        self.result = None
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        self.success = False
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        self.exc_info = None
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    def do(self):
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        """
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        do the job by executing the call, and deal with exceptions
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        """
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        try:
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            call, args, kwargs = self.job
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            self.result = call(*args, **kwargs)
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            self.success = True
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        except Exception:
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            self.success = False
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            self.exc_info = sys.exc_info()
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class worker(object):
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    """
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    serialize main thread load/unload of PLC shared objects
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    """
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    def __init__(self):
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        # Only one job at a time
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        self._finish = False
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        self._threadID = None
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        self.mutex = Lock()
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        self.todo = Condition(self.mutex)
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        self.done = Condition(self.mutex)
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        self.free = Condition(self.mutex)
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        self.job = None
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    def runloop(self, *args, **kwargs):
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        """
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        meant to be called by worker thread (blocking)
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        """
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        self._threadID = thread.get_ident()
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        if args or kwargs:
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            job(*args, **kwargs).do()
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            # result is ignored
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        self.mutex.acquire()
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        while not self._finish:
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            self.todo.wait()
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            if self.job is not None:
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                self.job.do()
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                self.done.notify()
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            else:
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                self.free.notify()
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        self.mutex.release()
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    def call(self, *args, **kwargs):
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        """
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        creates a job, execute it in worker thread, and deliver result.
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        if job execution raise exception, re-raise same exception
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        meant to be called by non-worker threads, but this is accepted.
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        blocking until job done
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        """
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        _job = job(*args, **kwargs)
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        if self._threadID == thread.get_ident() or self._threadID is None:
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            # if caller is worker thread execute immediately
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            _job.do()
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        else:
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            # otherwise notify and wait for completion
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            self.mutex.acquire()
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            while self.job is not None:
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                self.free.wait()
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            self.job = _job
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            self.todo.notify()
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            self.done.wait()
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            _job = self.job
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            self.job = None
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            self.mutex.release()
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        if _job.success:
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            return _job.result
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        else:
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            exc_type = _job.exc_info[0]
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            exc_value = _job.exc_info[1]
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            exc_traceback = _job.exc_info[2]
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            six.reraise(exc_type, exc_value, exc_traceback)
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    def quit(self):
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        """
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        unblocks main thread, and terminate execution of runloop()
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        """
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        # mark queue
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        self._finish = True
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        self.mutex.acquire()
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        self.job = None
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        self.todo.notify()
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        self.mutex.release()
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MainWorker = worker()
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def RunInMain(func):
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    def func_wrapper(*args, **kwargs):
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        return MainWorker.call(func, *args, **kwargs)
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    return func_wrapper
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class PLCObject(pyro.ObjBase):
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    def __init__(self, server):
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        pyro.ObjBase.__init__(self)
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        self.evaluator = server.evaluator
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        self.argv = [server.workdir] + server.argv  # force argv[0] to be "path" to exec...
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        self.workingdir = server.workdir
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        self.PLCStatus = PlcStatus.Empty
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        self.PLClibraryHandle = None
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        self.PLClibraryLock = Lock()
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        self.DummyIteratorLock = None
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        # Creates fake C funcs proxies
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        self._InitPLCStubCalls()
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        self.daemon = server.daemon
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        self.statuschange = server.statuschange
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        self.hmi_frame = None
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        self.pyruntimevars = server.pyruntimevars
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        self._loading_error = None
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        self.python_runtime_vars = None
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        self.TraceThread = None
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        self.TraceLock = Lock()
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        self.Traces = []
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    # First task of worker -> no @RunInMain
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    def AutoLoad(self):
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        # Get the last transfered PLC
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        try:
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            self.CurrentPLCFilename = open(
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                self._GetMD5FileName(),
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                "r").read().strip() + lib_ext
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            if self.LoadPLC():
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                self.PLCStatus = PlcStatus.Stopped
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        except Exception:
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            self.PLCStatus = PlcStatus.Empty
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            self.CurrentPLCFilename = None
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    def StatusChange(self):
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        if self.statuschange is not None:
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            for callee in self.statuschange:
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                callee(self.PLCStatus)
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    @RunInMain
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    def LogMessage(self, *args):
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        if len(args) == 2:
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            level, msg = args
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        else:
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            level = LogLevelsDefault
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            msg, = args
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        PLCprint(msg)
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        if self._LogMessage is not None:
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            return self._LogMessage(level, msg, len(msg))
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        return None
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    @RunInMain
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    def ResetLogCount(self):
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        if self._ResetLogCount is not None:
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            self._ResetLogCount()
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    # used internaly
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    def GetLogCount(self, level):
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        if self._GetLogCount is not None:
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            return int(self._GetLogCount(level))
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        elif self._loading_error is not None and level == 0:
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            return 1
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    @RunInMain
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    def GetLogMessage(self, level, msgid):
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        tick = ctypes.c_uint32()
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        tv_sec = ctypes.c_uint32()
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        tv_nsec = ctypes.c_uint32()
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        if self._GetLogMessage is not None:
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            maxsz = len(self._log_read_buffer)-1
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            sz = self._GetLogMessage(level, msgid,
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                                     self._log_read_buffer, maxsz,
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                                     ctypes.byref(tick),
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                                     ctypes.byref(tv_sec),
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                                     ctypes.byref(tv_nsec))
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            if sz and sz <= maxsz:
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                self._log_read_buffer[sz] = '\x00'
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                return self._log_read_buffer.value, tick.value, tv_sec.value, tv_nsec.value
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        elif self._loading_error is not None and level == 0:
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            return self._loading_error, 0, 0, 0
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        return None
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    def _GetMD5FileName(self):
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   261
        return os.path.join(self.workingdir, "lasttransferedPLC.md5")
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    def _GetLibFileName(self):
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   264
        return os.path.join(self.workingdir, self.CurrentPLCFilename)
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    def _LoadPLC(self):
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        """
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        Load PLC library
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        Declare all functions, arguments and return values
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        """
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        md5 = open(self._GetMD5FileName(), "r").read()
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        self.PLClibraryLock.acquire()
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        try:
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            self._PLClibraryHandle = dlopen(self._GetLibFileName())
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            self.PLClibraryHandle = ctypes.CDLL(self.CurrentPLCFilename, handle=self._PLClibraryHandle)
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de311ffe3961 Changed runtime's global PLCID to PLC_ID, working around redefinition in windoze' headers.
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            self.PLC_ID = ctypes.c_char_p.in_dll(self.PLClibraryHandle, "PLC_ID")
1739
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            if len(md5) == 32:
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                self.PLC_ID.value = md5
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229
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            self._startPLC = self.PLClibraryHandle.startPLC
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            self._startPLC.restype = ctypes.c_int
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            self._startPLC.argtypes = [ctypes.c_int, ctypes.POINTER(ctypes.c_char_p)]
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            self._stopPLC_real = self.PLClibraryHandle.stopPLC
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            self._stopPLC_real.restype = None
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            self._PythonIterator = getattr(self.PLClibraryHandle, "PythonIterator", None)
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            if self._PythonIterator is not None:
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                self._PythonIterator.restype = ctypes.c_char_p
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                self._PythonIterator.argtypes = [ctypes.c_char_p, ctypes.POINTER(ctypes.c_void_p)]
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                self._stopPLC = self._stopPLC_real
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            else:
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                # If python confnode is not enabled, we reuse _PythonIterator
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                # as a call that block pythonthread until StopPLC
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   297
                self.PlcStopping = Event()
1750
acf02488f37f clean-up: fix PEP8 E306 expected 1 blank line before a nested definition, found X
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parents: 1749
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   298
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                def PythonIterator(res, blkid):
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                    self.PlcStopping.clear()
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                    self.PlcStopping.wait()
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                    return None
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                self._PythonIterator = PythonIterator
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   305
                def __StopPLC():
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                    self._stopPLC_real()
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                    self.PlcStopping.set()
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                self._stopPLC = __StopPLC
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            self._ResetDebugVariables = self.PLClibraryHandle.ResetDebugVariables
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            self._ResetDebugVariables.restype = None
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235
a66e150f2888 Improved debug data feedback.
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            self._RegisterDebugVariable = self.PLClibraryHandle.RegisterDebugVariable
229
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   314
            self._RegisterDebugVariable.restype = None
477
f66a092b6e74 Arbitrary variable forcing
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parents: 467
diff changeset
   315
            self._RegisterDebugVariable.argtypes = [ctypes.c_int, ctypes.c_void_p]
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229
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            self._FreeDebugData = self.PLClibraryHandle.FreeDebugData
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   318
            self._FreeDebugData.restype = None
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   319
450
18583d13f0fa Preliminary accessor support for debug
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parents: 446
diff changeset
   320
            self._GetDebugData = self.PLClibraryHandle.GetDebugData
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   321
            self._GetDebugData.restype = ctypes.c_int
450
18583d13f0fa Preliminary accessor support for debug
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parents: 446
diff changeset
   322
            self._GetDebugData.argtypes = [ctypes.POINTER(ctypes.c_uint32), ctypes.POINTER(ctypes.c_uint32), ctypes.POINTER(ctypes.c_void_p)]
235
a66e150f2888 Improved debug data feedback.
etisserant
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diff changeset
   323
a66e150f2888 Improved debug data feedback.
etisserant
parents: 229
diff changeset
   324
            self._suspendDebug = self.PLClibraryHandle.suspendDebug
614
eed1dcf311a1 added return type to suspendDebug
Edouard Tisserant
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diff changeset
   325
            self._suspendDebug.restype = ctypes.c_int
462
274e83a5534e Now debug is not a button anymore
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parents: 461
diff changeset
   326
            self._suspendDebug.argtypes = [ctypes.c_int]
235
a66e150f2888 Improved debug data feedback.
etisserant
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diff changeset
   327
a66e150f2888 Improved debug data feedback.
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diff changeset
   328
            self._resumeDebug = self.PLClibraryHandle.resumeDebug
a66e150f2888 Improved debug data feedback.
etisserant
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diff changeset
   329
            self._resumeDebug.restype = None
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   330
1093
b5f78cff4459 Added support for resetting log messages
Laurent Bessard
parents: 1075
diff changeset
   331
            self._ResetLogCount = self.PLClibraryHandle.ResetLogCount
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Laurent Bessard
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   332
            self._ResetLogCount.restype = None
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Laurent Bessard
parents: 1075
diff changeset
   333
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   334
            self._GetLogCount = self.PLClibraryHandle.GetLogCount
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   335
            self._GetLogCount.restype = ctypes.c_uint32
917
401e44bae7c0 Now logging have 4 levels
Edouard Tisserant
parents: 914
diff changeset
   336
            self._GetLogCount.argtypes = [ctypes.c_uint8]
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   337
911
ffa24427396a Log redirected to console, dump of all available log to console when connecting to PLC
Edouard Tisserant
parents: 906
diff changeset
   338
            self._LogMessage = self.PLClibraryHandle.LogMessage
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diff changeset
   339
            self._LogMessage.restype = ctypes.c_int
971
c4550f76ae05 reverted PLCObject.py. ctypes.POINTER(ctypes.c_uint8) != string
Edouard Tisserant
parents: 969
diff changeset
   340
            self._LogMessage.argtypes = [ctypes.c_uint8, ctypes.c_char_p, ctypes.c_uint32]
1093
b5f78cff4459 Added support for resetting log messages
Laurent Bessard
parents: 1075
diff changeset
   341
1760
ed2e2afb9573 clean-up: fix PEP8 E262 inline comment should start with '# '
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1750
diff changeset
   342
            self._log_read_buffer = ctypes.create_string_buffer(1 << 14)  # 16K
911
ffa24427396a Log redirected to console, dump of all available log to console when connecting to PLC
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parents: 906
diff changeset
   343
            self._GetLogMessage = self.PLClibraryHandle.GetLogMessage
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diff changeset
   344
            self._GetLogMessage.restype = ctypes.c_uint32
921
a8db48ec2c31 Added log messages time-stamping
Edouard Tisserant
parents: 917
diff changeset
   345
            self._GetLogMessage.argtypes = [ctypes.c_uint8, ctypes.c_uint32, ctypes.c_char_p, ctypes.c_uint32, ctypes.POINTER(ctypes.c_uint32), ctypes.POINTER(ctypes.c_uint32), ctypes.POINTER(ctypes.c_uint32)]
911
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diff changeset
   346
914
94436558f0ce More stable logging. Added small one-entry log for loading errors. Test now include python side concurrent logging
Edouard Tisserant
parents: 911
diff changeset
   347
            self._loading_error = None
1035
0f905e027d18 Better mdns resolution failure signaling, added fixed bug whith runtime autostart
Edouard Tisserant
parents: 1027
diff changeset
   348
1780
c52d1460cea8 clean-up: fix PEP8 E722 do not use bare except'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1768
diff changeset
   349
        except Exception:
914
94436558f0ce More stable logging. Added small one-entry log for loading errors. Test now include python side concurrent logging
Edouard Tisserant
parents: 911
diff changeset
   350
            self._loading_error = traceback.format_exc()
94436558f0ce More stable logging. Added small one-entry log for loading errors. Test now include python side concurrent logging
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parents: 911
diff changeset
   351
            PLCprint(self._loading_error)
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   352
            return False
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
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parents: 1993
diff changeset
   353
        finally:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
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parents: 1993
diff changeset
   354
            self.PLClibraryLock.release()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   355
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
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parents: 1993
diff changeset
   356
        return True
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
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parents: 1993
diff changeset
   357
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
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parents: 1993
diff changeset
   358
    @RunInMain
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   359
    def LoadPLC(self):
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   360
        res = self._LoadPLC()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   361
        if res:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   362
            self.PythonRuntimeInit()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
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parents: 1993
diff changeset
   363
        else:
1984
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
Edouard Tisserant
parents: 1983
diff changeset
   364
            self._FreePLC()
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   365
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
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diff changeset
   366
        return res
229
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diff changeset
   367
1984
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
Edouard Tisserant
parents: 1983
diff changeset
   368
    @RunInMain
1045
a220a27defe5 Runtime now unloads and cleanup PLC before exit (created threads was preventing exit)
Edouard Tisserant
parents: 1035
diff changeset
   369
    def UnLoadPLC(self):
a220a27defe5 Runtime now unloads and cleanup PLC before exit (created threads was preventing exit)
Edouard Tisserant
parents: 1035
diff changeset
   370
        self.PythonRuntimeCleanup()
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Edouard Tisserant
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diff changeset
   371
        self._FreePLC()
a220a27defe5 Runtime now unloads and cleanup PLC before exit (created threads was preventing exit)
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parents: 1035
diff changeset
   372
1984
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
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parents: 1983
diff changeset
   373
    def _InitPLCStubCalls(self):
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parents: 1983
diff changeset
   374
        """
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
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parents: 1983
diff changeset
   375
        create dummy C func proxies
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diff changeset
   376
        """
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   377
        self._startPLC = lambda x, y: None
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parents: 1739
diff changeset
   378
        self._stopPLC = lambda: None
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parents: 1739
diff changeset
   379
        self._ResetDebugVariables = lambda: None
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parents: 1739
diff changeset
   380
        self._RegisterDebugVariable = lambda x, y: None
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
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parents: 1739
diff changeset
   381
        self._IterDebugData = lambda x, y: None
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parents: 1739
diff changeset
   382
        self._FreeDebugData = lambda: None
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Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   383
        self._GetDebugData = lambda: -1
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   384
        self._suspendDebug = lambda x: -1
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   385
        self._resumeDebug = lambda: None
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
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parents: 1739
diff changeset
   386
        self._PythonIterator = lambda: ""
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   387
        self._GetLogCount = None
1906
60edd0c901f1 Trying to get better logging/display of exceptions at runtime's startup
Edouard Tisserant
parents: 1902
diff changeset
   388
        self._LogMessage = None
914
94436558f0ce More stable logging. Added small one-entry log for loading errors. Test now include python side concurrent logging
Edouard Tisserant
parents: 911
diff changeset
   389
        self._GetLogMessage = None
1984
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
Edouard Tisserant
parents: 1983
diff changeset
   390
        self._PLClibraryHandle = None
229
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parents: 227
diff changeset
   391
        self.PLClibraryHandle = None
1984
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
Edouard Tisserant
parents: 1983
diff changeset
   392
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
Edouard Tisserant
parents: 1983
diff changeset
   393
    def _FreePLC(self):
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
Edouard Tisserant
parents: 1983
diff changeset
   394
        """
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
Edouard Tisserant
parents: 1983
diff changeset
   395
        Unload PLC library.
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
Edouard Tisserant
parents: 1983
diff changeset
   396
        This is also called by __init__ to create dummy C func proxies
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
Edouard Tisserant
parents: 1983
diff changeset
   397
        """
081265cda5b1 Intermediate state while implementing runtime worker to ensure that PLCObject Load and Unload methods always run main thread.
Edouard Tisserant
parents: 1983
diff changeset
   398
        self.PLClibraryLock.acquire()
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   399
        try:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   400
            # Unload library explicitely
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   401
            if getattr(self, "_PLClibraryHandle", None) is not None:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   402
                dlclose(self._PLClibraryHandle)
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   403
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   404
            # Forget all refs to library
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   405
            self._InitPLCStubCalls()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   406
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   407
        finally:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   408
            self.PLClibraryLock.release()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   409
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   410
        return False
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   411
1014
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   412
    def PythonRuntimeCall(self, methodname):
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   413
        """
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   414
        Calls init, start, stop or cleanup method provided by
1014
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   415
        runtime python files, loaded when new PLC uploaded
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   416
        """
1734
750eeb7230a1 clean-up: fix some PEP8 E228 missing whitespace around modulo operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1732
diff changeset
   417
        for method in self.python_runtime_vars.get("_runtime_%s" % methodname, []):
1847
6198190bc121 explicitly mark unused variables found by pylint with _ or dummy
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1846
diff changeset
   418
            _res, exp = self.evaluator(method)
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   419
            if exp is not None:
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   420
                self.LogMessage(0, '\n'.join(traceback.format_exception(*exp)))
1014
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   421
1997
d9e8fb47340f PEP-8 and PyLint
Edouard Tisserant
parents: 1994
diff changeset
   422
    # used internaly
1014
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   423
    def PythonRuntimeInit(self):
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   424
        MethodNames = ["init", "start", "stop", "cleanup"]
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   425
        self.python_runtime_vars = globals().copy()
1438
19ebe96b41c0 Moved twisted/nevow/athena away from Berermiz_service.py + some minor cleanup
Edouard Tisserant
parents: 1435
diff changeset
   426
        self.python_runtime_vars.update(self.pyruntimevars)
1868
616c3f4bcbcb fix pylint error '(no-self-argument) Method should have "self" as first argument'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1850
diff changeset
   427
        parent = self
1438
19ebe96b41c0 Moved twisted/nevow/athena away from Berermiz_service.py + some minor cleanup
Edouard Tisserant
parents: 1435
diff changeset
   428
1831
56b48961cc68 fix (old-style-class) Old-style class defined error for most parts of
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1783
diff changeset
   429
        class PLCSafeGlobals(object):
1868
616c3f4bcbcb fix pylint error '(no-self-argument) Method should have "self" as first argument'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1850
diff changeset
   430
            def __getattr__(self, name):
1739
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   431
                try:
1868
616c3f4bcbcb fix pylint error '(no-self-argument) Method should have "self" as first argument'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1850
diff changeset
   432
                    t = parent.python_runtime_vars["_"+name+"_ctype"]
1156
9708ed2a4ac2 Added more clear error message in case of access to non declared PLC global from python code
Edouard Tisserant
parents: 1145
diff changeset
   433
                except KeyError:
1734
750eeb7230a1 clean-up: fix some PEP8 E228 missing whitespace around modulo operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1732
diff changeset
   434
                    raise KeyError("Try to get unknown shared global variable : %s" % name)
1156
9708ed2a4ac2 Added more clear error message in case of access to non declared PLC global from python code
Edouard Tisserant
parents: 1145
diff changeset
   435
                v = t()
1868
616c3f4bcbcb fix pylint error '(no-self-argument) Method should have "self" as first argument'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1850
diff changeset
   436
                parent.python_runtime_vars["_PySafeGetPLCGlob_"+name](ctypes.byref(v))
616c3f4bcbcb fix pylint error '(no-self-argument) Method should have "self" as first argument'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1850
diff changeset
   437
                return parent.python_runtime_vars["_"+name+"_unpack"](v)
616c3f4bcbcb fix pylint error '(no-self-argument) Method should have "self" as first argument'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1850
diff changeset
   438
616c3f4bcbcb fix pylint error '(no-self-argument) Method should have "self" as first argument'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1850
diff changeset
   439
            def __setattr__(self, name, value):
1739
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   440
                try:
1868
616c3f4bcbcb fix pylint error '(no-self-argument) Method should have "self" as first argument'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1850
diff changeset
   441
                    t = parent.python_runtime_vars["_"+name+"_ctype"]
1156
9708ed2a4ac2 Added more clear error message in case of access to non declared PLC global from python code
Edouard Tisserant
parents: 1145
diff changeset
   442
                except KeyError:
1734
750eeb7230a1 clean-up: fix some PEP8 E228 missing whitespace around modulo operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1732
diff changeset
   443
                    raise KeyError("Try to set unknown shared global variable : %s" % name)
1868
616c3f4bcbcb fix pylint error '(no-self-argument) Method should have "self" as first argument'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1850
diff changeset
   444
                v = parent.python_runtime_vars["_"+name+"_pack"](t, value)
616c3f4bcbcb fix pylint error '(no-self-argument) Method should have "self" as first argument'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1850
diff changeset
   445
                parent.python_runtime_vars["_PySafeSetPLCGlob_"+name](ctypes.byref(v))
1447
d6b878525ceb Fixed systematically loading PLC binary at startup even without -a parameter. Extended py_ext extensions instances variable description (PLCGlobalsDesc). Now contains list of variables organizd by extension, with extension name
Edouard Tisserant
parents: 1442
diff changeset
   446
d6b878525ceb Fixed systematically loading PLC binary at startup even without -a parameter. Extended py_ext extensions instances variable description (PLCGlobalsDesc). Now contains list of variables organizd by extension, with extension name
Edouard Tisserant
parents: 1442
diff changeset
   447
        self.python_runtime_vars.update({
1739
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   448
            "PLCGlobals":     PLCSafeGlobals(),
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   449
            "WorkingDir":     self.workingdir,
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   450
            "PLCObject":      self,
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   451
            "PLCBinary":      self.PLClibraryHandle,
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   452
            "PLCGlobalsDesc": []})
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   453
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   454
        for methodname in MethodNames:
1734
750eeb7230a1 clean-up: fix some PEP8 E228 missing whitespace around modulo operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1732
diff changeset
   455
            self.python_runtime_vars["_runtime_%s" % methodname] = []
1447
d6b878525ceb Fixed systematically loading PLC binary at startup even without -a parameter. Extended py_ext extensions instances variable description (PLCGlobalsDesc). Now contains list of variables organizd by extension, with extension name
Edouard Tisserant
parents: 1442
diff changeset
   456
972
659198075ce4 Redirect PyEval exceptions to logging
Edouard Tisserant
parents: 971
diff changeset
   457
        try:
1447
d6b878525ceb Fixed systematically loading PLC binary at startup even without -a parameter. Extended py_ext extensions instances variable description (PLCGlobalsDesc). Now contains list of variables organizd by extension, with extension name
Edouard Tisserant
parents: 1442
diff changeset
   458
            filenames = os.listdir(self.workingdir)
d6b878525ceb Fixed systematically loading PLC binary at startup even without -a parameter. Extended py_ext extensions instances variable description (PLCGlobalsDesc). Now contains list of variables organizd by extension, with extension name
Edouard Tisserant
parents: 1442
diff changeset
   459
            filenames.sort()
d6b878525ceb Fixed systematically loading PLC binary at startup even without -a parameter. Extended py_ext extensions instances variable description (PLCGlobalsDesc). Now contains list of variables organizd by extension, with extension name
Edouard Tisserant
parents: 1442
diff changeset
   460
            for filename in filenames:
972
659198075ce4 Redirect PyEval exceptions to logging
Edouard Tisserant
parents: 971
diff changeset
   461
                name, ext = os.path.splitext(filename)
659198075ce4 Redirect PyEval exceptions to logging
Edouard Tisserant
parents: 971
diff changeset
   462
                if name.upper().startswith("RUNTIME") and ext.upper() == ".PY":
1014
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   463
                    execfile(os.path.join(self.workingdir, filename), self.python_runtime_vars)
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   464
                    for methodname in MethodNames:
1014
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   465
                        method = self.python_runtime_vars.get("_%s_%s" % (name, methodname), None)
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   466
                        if method is not None:
1734
750eeb7230a1 clean-up: fix some PEP8 E228 missing whitespace around modulo operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1732
diff changeset
   467
                            self.python_runtime_vars["_runtime_%s" % methodname].append(method)
1780
c52d1460cea8 clean-up: fix PEP8 E722 do not use bare except'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1768
diff changeset
   468
        except Exception:
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   469
            self.LogMessage(0, traceback.format_exc())
972
659198075ce4 Redirect PyEval exceptions to logging
Edouard Tisserant
parents: 971
diff changeset
   470
            raise
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   471
1014
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   472
        self.PythonRuntimeCall("init")
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   473
1997
d9e8fb47340f PEP-8 and PyLint
Edouard Tisserant
parents: 1994
diff changeset
   474
    # used internaly
1014
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   475
    def PythonRuntimeCleanup(self):
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   476
        if self.python_runtime_vars is not None:
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   477
            self.PythonRuntimeCall("cleanup")
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   478
e2f7d6c95db0 Now python files provided by extentions have init, start, stop and cleanup hooks
Edouard Tisserant
parents: 1011
diff changeset
   479
        self.python_runtime_vars = None
291
701c0601db02 Added systematic stdout.flush runtime side, so that results appear in log window
etisserant
parents: 290
diff changeset
   480
462
274e83a5534e Now debug is not a button anymore
Edouard TISSERANT <edouard.tisserant@gmail.com>
parents: 461
diff changeset
   481
    def PythonThreadProc(self):
798
0d2423f283a6 Fix bug segmentation fault while cleanup extensions
laurent
parents: 795
diff changeset
   482
        self.StartSem.release()
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   483
        res, cmd, blkid = "None", "None", ctypes.c_void_p()
1742
92932cd370a4 clean-up: fix PEP8 E225 missing whitespace around operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1741
diff changeset
   484
        compile_cache = {}
798
0d2423f283a6 Fix bug segmentation fault while cleanup extensions
laurent
parents: 795
diff changeset
   485
        while True:
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   486
            cmd = self._PythonIterator(res, blkid)
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   487
            FBID = blkid.value
798
0d2423f283a6 Fix bug segmentation fault while cleanup extensions
laurent
parents: 795
diff changeset
   488
            if cmd is None:
0d2423f283a6 Fix bug segmentation fault while cleanup extensions
laurent
parents: 795
diff changeset
   489
                break
1739
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   490
            try:
1742
92932cd370a4 clean-up: fix PEP8 E225 missing whitespace around operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1741
diff changeset
   491
                self.python_runtime_vars["FBID"] = FBID
92932cd370a4 clean-up: fix PEP8 E225 missing whitespace around operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1741
diff changeset
   492
                ccmd, AST = compile_cache.get(FBID, (None, None))
92932cd370a4 clean-up: fix PEP8 E225 missing whitespace around operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1741
diff changeset
   493
                if ccmd is None or ccmd != cmd:
867
06495975e8a4 Added caching for python eval (avoid compiling when same code called, but still execute). Cleaned up some evaluator related code.
Edouard Tisserant
parents: 851
diff changeset
   494
                    AST = compile(cmd, '<plc>', 'eval')
1742
92932cd370a4 clean-up: fix PEP8 E225 missing whitespace around operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1741
diff changeset
   495
                    compile_cache[FBID] = (cmd, AST)
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   496
                result, exp = self.evaluator(eval, AST, self.python_runtime_vars)
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   497
                if exp is not None:
1052
fa7c5034c1d2 Better display of Python exceptions from Py_Eval
Edouard Tisserant
parents: 1051
diff changeset
   498
                    res = "#EXCEPTION : "+str(exp[1])
1768
691083b5682a clean-up: fix PEP8 E128 continuation line under-indented for visual indent
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1767
diff changeset
   499
                    self.LogMessage(1, ('PyEval@0x%x(Code="%s") Exception "%s"') % (
691083b5682a clean-up: fix PEP8 E128 continuation line under-indented for visual indent
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1767
diff changeset
   500
                        FBID, cmd, '\n'.join(traceback.format_exception(*exp))))
867
06495975e8a4 Added caching for python eval (avoid compiling when same code called, but still execute). Cleaned up some evaluator related code.
Edouard Tisserant
parents: 851
diff changeset
   501
                else:
1742
92932cd370a4 clean-up: fix PEP8 E225 missing whitespace around operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1741
diff changeset
   502
                    res = str(result)
92932cd370a4 clean-up: fix PEP8 E225 missing whitespace around operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1741
diff changeset
   503
                self.python_runtime_vars["FBID"] = None
2418
5587c490a070 Use python 3 compatible exception syntax everywhere
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 2416
diff changeset
   504
            except Exception as e:
798
0d2423f283a6 Fix bug segmentation fault while cleanup extensions
laurent
parents: 795
diff changeset
   505
                res = "#EXCEPTION : "+str(e)
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   506
                self.LogMessage(1, ('PyEval@0x%x(Code="%s") Exception "%s"') % (FBID, cmd, str(e)))
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   507
1988
19ca02e8074f PLCObject got more methods serialized through worker : Start, Stop, NewPLC.
Edouard Tisserant
parents: 1987
diff changeset
   508
    @RunInMain
462
274e83a5534e Now debug is not a button anymore
Edouard TISSERANT <edouard.tisserant@gmail.com>
parents: 461
diff changeset
   509
    def StartPLC(self):
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   510
        if self.CurrentPLCFilename is not None and self.PLCStatus == PlcStatus.Stopped:
798
0d2423f283a6 Fix bug segmentation fault while cleanup extensions
laurent
parents: 795
diff changeset
   511
            c_argv = ctypes.c_char_p * len(self.argv)
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   512
            res = self._startPLC(len(self.argv), c_argv(*self.argv))
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   513
            if res == 0:
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   514
                self.PLCStatus = PlcStatus.Started
1442
ad9a7853dea2 Fixed race condition preventing to stop PLC through WAMP
Edouard Tisserant
parents: 1440
diff changeset
   515
                self.StatusChange()
ad9a7853dea2 Fixed race condition preventing to stop PLC through WAMP
Edouard Tisserant
parents: 1440
diff changeset
   516
                self.PythonRuntimeCall("start")
1742
92932cd370a4 clean-up: fix PEP8 E225 missing whitespace around operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1741
diff changeset
   517
                self.StartSem = Semaphore(0)
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   518
                self.PythonThread = Thread(target=self.PythonThreadProc)
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   519
                self.PythonThread.start()
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   520
                self.StartSem.acquire()
917
401e44bae7c0 Now logging have 4 levels
Edouard Tisserant
parents: 914
diff changeset
   521
                self.LogMessage("PLC started")
798
0d2423f283a6 Fix bug segmentation fault while cleanup extensions
laurent
parents: 795
diff changeset
   522
            else:
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   523
                self.LogMessage(0, _("Problem starting PLC : error %d" % res))
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   524
                self.PLCStatus = PlcStatus.Broken
798
0d2423f283a6 Fix bug segmentation fault while cleanup extensions
laurent
parents: 795
diff changeset
   525
                self.StatusChange()
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   526
1988
19ca02e8074f PLCObject got more methods serialized through worker : Start, Stop, NewPLC.
Edouard Tisserant
parents: 1987
diff changeset
   527
    @RunInMain
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   528
    def StopPLC(self):
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   529
        if self.PLCStatus == PlcStatus.Started:
917
401e44bae7c0 Now logging have 4 levels
Edouard Tisserant
parents: 914
diff changeset
   530
            self.LogMessage("PLC stopped")
352
81777d4e379c fixed bug : Lock _FreePLC until _stopPLC finish
greg
parents: 350
diff changeset
   531
            self._stopPLC()
798
0d2423f283a6 Fix bug segmentation fault while cleanup extensions
laurent
parents: 795
diff changeset
   532
            self.PythonThread.join()
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   533
            self.PLCStatus = PlcStatus.Stopped
1442
ad9a7853dea2 Fixed race condition preventing to stop PLC through WAMP
Edouard Tisserant
parents: 1440
diff changeset
   534
            self.StatusChange()
ad9a7853dea2 Fixed race condition preventing to stop PLC through WAMP
Edouard Tisserant
parents: 1440
diff changeset
   535
            self.PythonRuntimeCall("stop")
1739
ec153828ded2 clean-up: fix PEP8 E203 whitespace before ':' and whitespace before ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1737
diff changeset
   536
            if self.TraceThread is not None:
1434
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   537
                self.TraceThread.join()
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   538
                self.TraceThread = None
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   539
            return True
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   540
        return False
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   541
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   542
    @RunInMain
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   543
    def GetPLCstatus(self):
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   544
        return self.PLCStatus, map(self.GetLogCount, xrange(LogLevelsCount))
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   545
1988
19ca02e8074f PLCObject got more methods serialized through worker : Start, Stop, NewPLC.
Edouard Tisserant
parents: 1987
diff changeset
   546
    @RunInMain
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   547
    def NewPLC(self, md5sum, data, extrafiles):
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   548
        if self.PLCStatus in [PlcStatus.Stopped, PlcStatus.Empty, PlcStatus.Broken]:
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   549
            NewFileName = md5sum + lib_ext
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   550
            extra_files_log = os.path.join(self.workingdir, "extra_files.txt")
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   551
1997
d9e8fb47340f PEP-8 and PyLint
Edouard Tisserant
parents: 1994
diff changeset
   552
            old_PLC_filename = os.path.join(self.workingdir, self.CurrentPLCFilename) \
d9e8fb47340f PEP-8 and PyLint
Edouard Tisserant
parents: 1994
diff changeset
   553
                if self.CurrentPLCFilename is not None \
d9e8fb47340f PEP-8 and PyLint
Edouard Tisserant
parents: 1994
diff changeset
   554
                else None
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   555
            new_PLC_filename = os.path.join(self.workingdir, NewFileName)
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   556
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   557
            # Some platform (i.e. Xenomai) don't like reloading same .so file
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   558
            replace_PLC_shared_object = new_PLC_filename != old_PLC_filename
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   559
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   560
            if replace_PLC_shared_object:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   561
                self.UnLoadPLC()
1045
a220a27defe5 Runtime now unloads and cleanup PLC before exit (created threads was preventing exit)
Edouard Tisserant
parents: 1035
diff changeset
   562
1734
750eeb7230a1 clean-up: fix some PEP8 E228 missing whitespace around modulo operator
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1732
diff changeset
   563
            self.LogMessage("NewPLC (%s)" % md5sum)
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   564
            self.PLCStatus = PlcStatus.Empty
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   565
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   566
            try:
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   567
                if replace_PLC_shared_object:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   568
                    os.remove(old_PLC_filename)
364
27ea6a6747fc Bug extra_files deletion in working directory fixed
laurent
parents: 361
diff changeset
   569
                for filename in file(extra_files_log, "r").readlines() + [extra_files_log]:
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   570
                    try:
364
27ea6a6747fc Bug extra_files deletion in working directory fixed
laurent
parents: 361
diff changeset
   571
                        os.remove(os.path.join(self.workingdir, filename.strip()))
1780
c52d1460cea8 clean-up: fix PEP8 E722 do not use bare except'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1768
diff changeset
   572
                    except Exception:
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   573
                        pass
1780
c52d1460cea8 clean-up: fix PEP8 E722 do not use bare except'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1768
diff changeset
   574
            except Exception:
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   575
                pass
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   576
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   577
            try:
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   578
                # Create new PLC file
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   579
                if replace_PLC_shared_object:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   580
                    open(new_PLC_filename, 'wb').write(data)
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   581
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   582
                # Store new PLC filename based on md5 key
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   583
                open(self._GetMD5FileName(), "w").write(md5sum)
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   584
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   585
                # Then write the files
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   586
                log = file(extra_files_log, "w")
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   587
                for fname, fdata in extrafiles:
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   588
                    fpath = os.path.join(self.workingdir, fname)
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   589
                    open(fpath, "wb").write(fdata)
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   590
                    log.write(fname+'\n')
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   591
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   592
                # Store new PLC filename
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   593
                self.CurrentPLCFilename = NewFileName
1780
c52d1460cea8 clean-up: fix PEP8 E722 do not use bare except'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1768
diff changeset
   594
            except Exception:
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   595
                self.PLCStatus = PlcStatus.Broken
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   596
                self.StatusChange()
291
701c0601db02 Added systematic stdout.flush runtime side, so that results appear in log window
etisserant
parents: 290
diff changeset
   597
                PLCprint(traceback.format_exc())
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   598
                return False
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   599
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   600
            if not replace_PLC_shared_object:
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   601
                self.PLCStatus = PlcStatus.Stopped
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   602
            elif self.LoadPLC():
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   603
                self.PLCStatus = PlcStatus.Stopped
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   604
            else:
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   605
                self.PLCStatus = PlcStatus.Broken
906
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   606
            self.StatusChange()
de452d65865c Python runtime now dlopens shared library immediatly after transfer, and release it only immediately before reloading a new one. This is probably going to reveal lot of dirty cleanups during start/stop cycles.
Edouard Tisserant
parents: 868
diff changeset
   607
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   608
            return self.PLCStatus == PlcStatus.Stopped
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   609
        return False
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   610
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   611
    def MatchMD5(self, MD5):
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   612
        try:
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   613
            last_md5 = open(self._GetMD5FileName(), "r").read()
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   614
            return last_md5 == MD5
1780
c52d1460cea8 clean-up: fix PEP8 E722 do not use bare except'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1768
diff changeset
   615
        except Exception:
1440
e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
Edouard Tisserant
parents: 1438
diff changeset
   616
            pass
e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
Edouard Tisserant
parents: 1438
diff changeset
   617
        return False
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   618
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   619
    def SetTraceVariablesList(self, idxs):
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   620
        """
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   621
        Call ctype imported function to append
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   622
        these indexes to registred variables in PLC debugger
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   623
        """
462
274e83a5534e Now debug is not a button anymore
Edouard TISSERANT <edouard.tisserant@gmail.com>
parents: 461
diff changeset
   624
        if idxs:
274e83a5534e Now debug is not a button anymore
Edouard TISSERANT <edouard.tisserant@gmail.com>
parents: 461
diff changeset
   625
            # suspend but dont disable
614
eed1dcf311a1 added return type to suspendDebug
Edouard Tisserant
parents: 593
diff changeset
   626
            if self._suspendDebug(False) == 0:
eed1dcf311a1 added return type to suspendDebug
Edouard Tisserant
parents: 593
diff changeset
   627
                # keep a copy of requested idx
eed1dcf311a1 added return type to suspendDebug
Edouard Tisserant
parents: 593
diff changeset
   628
                self._ResetDebugVariables()
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   629
                for idx, iectype, force in idxs:
1743
c3c3d1318130 clean-up: fix PEP8 E711 comparison to None should be 'if cond is not None:'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1742
diff changeset
   630
                    if force is not None:
1847
6198190bc121 explicitly mark unused variables found by pylint with _ or dummy
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1846
diff changeset
   631
                        c_type, _unpack_func, pack_func = \
614
eed1dcf311a1 added return type to suspendDebug
Edouard Tisserant
parents: 593
diff changeset
   632
                            TypeTranslator.get(iectype,
1767
c74815729afd clean-up: fix PEP8 E127 continuation line over-indented for visual indent
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1760
diff changeset
   633
                                               (None, None, None))
1740
b789b695b5c6 clean-up: fix PEP8 E231 missing whitespace after ':' or ','
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1739
diff changeset
   634
                        force = ctypes.byref(pack_func(c_type, force))
614
eed1dcf311a1 added return type to suspendDebug
Edouard Tisserant
parents: 593
diff changeset
   635
                    self._RegisterDebugVariable(idx, force)
1434
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   636
                self._TracesSwap()
614
eed1dcf311a1 added return type to suspendDebug
Edouard Tisserant
parents: 593
diff changeset
   637
                self._resumeDebug()
462
274e83a5534e Now debug is not a button anymore
Edouard TISSERANT <edouard.tisserant@gmail.com>
parents: 461
diff changeset
   638
        else:
274e83a5534e Now debug is not a button anymore
Edouard TISSERANT <edouard.tisserant@gmail.com>
parents: 461
diff changeset
   639
            self._suspendDebug(True)
1434
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   640
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   641
    def _TracesSwap(self):
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   642
        self.LastSwapTrace = time()
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   643
        if self.TraceThread is None and self.PLCStatus == PlcStatus.Started:
1434
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   644
            self.TraceThread = Thread(target=self.TraceThreadProc)
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   645
            self.TraceThread.start()
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   646
        self.TraceLock.acquire()
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   647
        Traces = self.Traces
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   648
        self.Traces = []
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   649
        self.TraceLock.release()
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   650
        return Traces
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   651
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   652
    @RunInMain
229
8bc65076e290 add tests for win32
greg
parents: 227
diff changeset
   653
    def GetTraceVariables(self):
1434
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   654
        return self.PLCStatus, self._TracesSwap()
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   655
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   656
    def TraceThreadProc(self):
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   657
        """
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   658
        Return a list of traces, corresponding to the list of required idx
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   659
        """
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   660
        self._resumeDebug()  # Re-enable debugger
2416
1ca207782dde Use predefined constants for PlcStatus instead of string literals
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1997
diff changeset
   661
        while self.PLCStatus == PlcStatus.Started:
450
18583d13f0fa Preliminary accessor support for debug
Edouard TISSERANT <edouard.tisserant@gmail.com>
parents: 446
diff changeset
   662
            tick = ctypes.c_uint32()
18583d13f0fa Preliminary accessor support for debug
Edouard TISSERANT <edouard.tisserant@gmail.com>
parents: 446
diff changeset
   663
            size = ctypes.c_uint32()
1075
8078c01ae464 Now Debug Buffer Unpacking is a separate function, declared in typemapping.py
Edouard Tisserant
parents: 1074
diff changeset
   664
            buff = ctypes.c_void_p()
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   665
            TraceBuffer = None
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   666
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   667
            self.PLClibraryLock.acquire()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   668
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   669
            res = self._GetDebugData(ctypes.byref(tick),
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   670
                                     ctypes.byref(size),
1997
d9e8fb47340f PEP-8 and PyLint
Edouard Tisserant
parents: 1994
diff changeset
   671
                                     ctypes.byref(buff))
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   672
            if res == 0:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   673
                if size.value:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   674
                    TraceBuffer = ctypes.string_at(buff.value, size.value)
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   675
                self._FreeDebugData()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   676
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   677
            self.PLClibraryLock.release()
1997
d9e8fb47340f PEP-8 and PyLint
Edouard Tisserant
parents: 1994
diff changeset
   678
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   679
            # leave thread if GetDebugData isn't happy.
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   680
            if res != 0:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   681
                break
1990
2e0fbdd152de Fixed Xenomai 3 PLC stop freeze. Now use explicit finish command with pipes. Closing both ends of pipes doesn't abort blocking read anymore.
Edouard Tisserant
parents: 1988
diff changeset
   682
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   683
            if TraceBuffer is not None:
1994
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   684
                self.TraceLock.acquire()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   685
                lT = len(self.Traces)
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   686
                if lT != 0 and lT * len(self.Traces[0]) > 1024 * 1024:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   687
                    self.Traces.pop(0)
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   688
                self.Traces.append((tick.value, TraceBuffer))
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   689
                self.TraceLock.release()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   690
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   691
            # TraceProc stops here if Traces not polled for 3 seconds
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   692
            traces_age = time() - self.LastSwapTrace
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   693
            if traces_age > 3:
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   694
                self.TraceLock.acquire()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   695
                self.Traces = []
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   696
                self.TraceLock.release()
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   697
                self._suspendDebug(True)  # Disable debugger
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   698
                break
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   699
1fdc32be71b8 Rework of runtime non-real-time threading, and shared object dynamic loading :
Edouard Tisserant
parents: 1993
diff changeset
   700
        self.TraceThread = None
1434
6e0cd0ceabb7 Added runtime side trace buffer, handled in a separate thread, limited to 1MB, and dropped after 3 seconds if not used by IDE. GetTraceVariables is not anymore blocking on next PLC cycle
Edouard Tisserant
parents: 1433
diff changeset
   701
1440
e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
Edouard Tisserant
parents: 1438
diff changeset
   702
    def RemoteExec(self, script, *kwargs):
699
6ff64cadb1ff Adding support for executing python scripts on remote runtime
laurent
parents: 690
diff changeset
   703
        try:
2419
c081dabc0f63 Fix old style exception raise and exec syntax
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 2418
diff changeset
   704
            exec(script, kwargs)
1780
c52d1460cea8 clean-up: fix PEP8 E722 do not use bare except'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1768
diff changeset
   705
        except Exception:
1847
6198190bc121 explicitly mark unused variables found by pylint with _ or dummy
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1846
diff changeset
   706
            _e_type, e_value, e_traceback = sys.exc_info()
699
6ff64cadb1ff Adding support for executing python scripts on remote runtime
laurent
parents: 690
diff changeset
   707
            line_no = traceback.tb_lineno(get_last_traceback(e_traceback))
1433
4a45f6642523 Moved trace buffer unpacking in the IDE. Latest traced variable samples are now passed as a single string
Edouard Tisserant
parents: 1288
diff changeset
   708
            return (-1, "RemoteExec script failed!\n\nLine %d: %s\n\t%s" %
1878
fb73a6b6622d fix pylint warning '(bad-continuation) Wrong hanging indentation before block'
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1868
diff changeset
   709
                    (line_no, e_value, script.splitlines()[line_no - 1]))
699
6ff64cadb1ff Adding support for executing python scripts on remote runtime
laurent
parents: 690
diff changeset
   710
        return (0, kwargs.get("returnVal", None))