svgui/pyjs/lib/sys.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Wed, 07 Dec 2016 19:24:16 +0300
changeset 1596 f5868f866d2b
parent 728 e0424e96e3fd
child 1730 64d8f52bc8c8
permissions -rw-r--r--
stop PLC before unloading


This fixes segmentation fault if service was quit without stopping it.
It has happened if Beremiz service was quit using taskbar icon or by
closing Beremiz IDE (in case of autostarted local service).

In second case to trigger the bug following step has to be done:
1. Open Beremiz IDE
2. Open project, compile and connect to LOCAL:// runtime
3. Transfer and start the PLC program
4. Open other project without disconneting the PLC runtime
5. Close Beremiz IDE
# the platform name (PyV8, smjs, Mozilla, IE6, Opera, Safari etc.)
platform = '' # to be updated by app, on compile

# a dictionary of module override names (platform-specific)
overrides = None # to be updated by app, on compile

# the remote path for loading modules
loadpath = None 

stacktrace = None 

appname = None 

def setloadpath(lp):
    global loadpath
    loadpath = lp

def setappname(an):
    global appname
    appname = an

def getloadpath():
    global loadpath
    return loadpath

def addoverride(module_name, path):
    global overrides
    overrides[module_name] = path

def addstack(linedebug):
    JS("""
        if (pyjslib.bool((sys.stacktrace === null))) {
            sys.stacktrace = new pyjslib.List([]);
        }
        sys.stacktrace.append(linedebug);
    """)
def popstack():
    JS("""
        sys.stacktrace.pop()
    """)

def printstack():
    JS("""
        var res = '';

        var __l = sys.stacktrace.__iter__();
        try {
            while (true) {
                var l = __l.next();
                res +=  ( l + '\\n' ) ;
            }
        } catch (e) {
            if (e != pyjslib.StopIteration) {
                throw e;
            }
        }

        return res;
    """)