beremiz

Add safety check to prevent exception when disconnecting while debugging

2018-04-19, Edouard Tisserant
4ae9c4447947
Parents 691d119ba20f
Children d9e8fb47340f
Add safety check to prevent exception when disconnecting while debugging
1 files changed, 20 insertions(+), 19 deletions(-)
  • +20 -19
    ProjectController.py
    • --- a/ProjectController.py Thu Apr 19 13:02:13 2018 +0200
    +++ b/ProjectController.py Thu Apr 19 13:09:41 2018 +0200
    @@ -1418,25 +1418,26 @@
    self.UpdateMethodsFromPLCStatus()
    def SnapshotAndResetDebugValuesBuffers(self):
    - plc_status, Traces = self._connector.GetTraceVariables()
    - # print [dict.keys() for IECPath, (dict, log, status, fvalue) in self.IECdebug_datas.items()]
    - if plc_status == "Started":
    - if len(Traces) > 0:
    - for debug_tick, debug_buff in Traces:
    - debug_vars = UnpackDebugBuffer(debug_buff, self.TracedIECTypes)
    - if debug_vars is not None and len(debug_vars) == len(self.TracedIECPath):
    - for IECPath, values_buffer, value in izip(
    - self.TracedIECPath,
    - self.DebugValuesBuffers,
    - debug_vars):
    - IECdebug_data = self.IECdebug_datas.get(IECPath, None)
    - if IECdebug_data is not None and value is not None:
    - forced = IECdebug_data[2:4] == ["Forced", value]
    - if not IECdebug_data[4] and len(values_buffer) > 0:
    - values_buffer[-1] = (value, forced)
    - else:
    - values_buffer.append((value, forced))
    - self.DebugTicks.append(debug_tick)
    + if self._connector is not None:
    + plc_status, Traces = self._connector.GetTraceVariables()
    + # print [dict.keys() for IECPath, (dict, log, status, fvalue) in self.IECdebug_datas.items()]
    + if plc_status == "Started":
    + if len(Traces) > 0:
    + for debug_tick, debug_buff in Traces:
    + debug_vars = UnpackDebugBuffer(debug_buff, self.TracedIECTypes)
    + if debug_vars is not None and len(debug_vars) == len(self.TracedIECPath):
    + for IECPath, values_buffer, value in izip(
    + self.TracedIECPath,
    + self.DebugValuesBuffers,
    + debug_vars):
    + IECdebug_data = self.IECdebug_datas.get(IECPath, None)
    + if IECdebug_data is not None and value is not None:
    + forced = IECdebug_data[2:4] == ["Forced", value]
    + if not IECdebug_data[4] and len(values_buffer) > 0:
    + values_buffer[-1] = (value, forced)
    + else:
    + values_buffer.append((value, forced))
    + self.DebugTicks.append(debug_tick)
    buffers, self.DebugValuesBuffers = (self.DebugValuesBuffers,