HGKeeper

2a10e3e6d068

py_ext: CSV Writer output FB interface: ERROR and RESULT are valid when ACK is TRUE.

+ updated svghmi_csv_json_img_table accordingly

#!/usr/bin/env python

# -*- coding: utf-8 -*-

# See COPYING file for copyrights details.

from __future__ import absolute_import

import hashlib

from runtime import PlcStatus

class ConnectorBase(object):

chuncksize = 1024*1024

PLCObjDefaults = {

"StartPLC": False,

"GetTraceVariables": (PlcStatus.Broken, None),

"GetPLCstatus": (PlcStatus.Broken, None),

"RemoteExec": (-1, "RemoteExec script failed!"),

"GetVersions": "*** Unknown ***"

}

def BlobFromFile(self, filepath, seed):

s = hashlib.new('md5')

s.update(seed)

blobID = self.SeedBlob(seed)

with open(filepath, "rb") as f:

while blobID == s.digest():

chunk = f.read(self.chuncksize)

if len(chunk) == 0:

return blobID

blobID = self.AppendChunkToBlob(chunk, blobID)

s.update(chunk)

raise IOError("Data corrupted during transfer or connection lost")