def transferToDataStructure(format,
dataStruct,
dStart,
buffer,
parentFormat,
isTopLevelStruct,
oclass=None):
ftype = _IPC.formatType(format)
if (ftype == LengthFMT):
IPC.Raise("Python version of IPC can only use explicit formats")
elif (ftype == PrimitiveFMT):
try:
dataStruct.__dict__ # Is this a settable object
except AttributeError:
IPC.Raise(
invalidStructFormat(
type(dataStruct),
primFmttrs.PrimType(_IPC.formatPrimitiveProc(format))))
primFmttrs.Decode(_IPC.formatPrimitiveProc(format), dataStruct, dStart,
buffer)
elif (ftype == PointerFMT):
theChar = _IPC.formatGetChar(buffer)
if (theChar == '\0'):
primFmttrs.setObjectField(dataStruct, dStart, None)
else:
transferToDataStructure(
_IPC.formatChoosePtrFormat(format, parentFormat), dataStruct,
dStart, buffer, 0, isTopLevelStruct, oclass)
elif (ftype == StructFMT):
formatArray = _IPC.formatFormatArray(format)
structStart = 0
n = _IPC.formatFormatArrayMax(formatArray)
if (isTopLevelStruct):
struct = dataStruct
else:
struct1 = primFmttrs.getObjectField(dataStruct, dStart)
struct = validateObject(struct1, dataStruct, dStart)
if (not struct == struct1):
primFmttrs.setObjectField(dataStruct, dStart, struct)
for i in range(1, n):
transferToDataStructure(
_IPC.formatFormatArrayItemPtr(formatArray, i), struct,
structStart, buffer, format, False)
structStart = structStart + 1
elif (ftype == FixedArrayFMT):
formatArray = _IPC.formatFormatArray(format)
nextFormat = _IPC.formatFormatArrayItemPtr(formatArray, 1)
size = _IPC.formatFormatArrayItemInt(formatArray, 2)
if (isTopLevelStruct and isinstance(dataStruct, (tuple, list))):
arrayObject = dataStruct
else:
arrayObject = primFmttrs.getObjectField(dataStruct, dStart)
arrayObject = validateArrayObject(arrayObject, size, dataStruct,
dStart)
primFmttrs.setObjectField(dataStruct, dStart, arrayObject)
arrayTransferToDataStructure(
arrayObject, buffer, 2,
_IPC.formatFormatArrayMax(formatArray) - 1, size,
isSimpleType(nextFormat), formatArray, nextFormat, dataStruct,
dStart, False, oclass)
elif (ftype == VarArrayFMT):
formatArray = _IPC.formatFormatArray(format)
nextFormat = _IPC.formatFormatArrayItemPtr(formatArray, 1)
# The total size of the array is the stored first
size = _IPC.formatGetInt(buffer)
numDims = _IPC.formatFormatArrayMax(formatArray) - 2
if (numDims > 1): size = varArrayDimSize(2, formatArray, dataStruct)
if (not feasibleToDecodeVarArray(size, formatArray, dStart)):
IPC.Raise("Python version of IPC cannot decode " + \
"multi-dimensional variable length arrays unless " + \
"the size variables appear BEFORE the array " + \
"in the enclosing structure")
elif (isTopLevelStruct):
arrayObject = dataStruct
else:
arrayObject = primFmttrs.getObjectField(dataStruct, dStart)
arrayObject = validateArrayObject(arrayObject, size, dataStruct,
dStart)
primFmttrs.setObjectField(dataStruct, dStart, arrayObject)
arrayTransferToDataStructure(arrayObject, buffer, 2, numDims + 1, size,
isSimpleType(nextFormat), formatArray,
nextFormat, dataStruct, dStart, True,
oclass)
elif (ftype == NamedFMT):
transferToDataStructure(_IPC.findNamedFormat(format), dataStruct,
dStart, buffer, parentFormat, isTopLevelStruct)
elif (ftype == EnumFMT):
primFmttrs.Decode(primFmttrs.INT_FMT, dataStruct, dStart, buffer)
else:
IPC.Raise("Unhandled format: %s" % ftype)
def transferToDataStructure (format, dataStruct, dStart, buffer, parentFormat,
isTopLevelStruct, oclass=None) :
ftype = _IPC.formatType(format)
if (ftype == LengthFMT) :
IPC.Raise("Python version of IPC can only use explicit formats")
elif (ftype == PrimitiveFMT) :
try: dataStruct.__dict__ # Is this a settable object
except AttributeError:
IPC.Raise(invalidStructFormat(type(dataStruct),
primFmttrs.PrimType(_IPC.formatPrimitiveProc(format))))
primFmttrs.Decode(_IPC.formatPrimitiveProc(format), dataStruct, dStart,
buffer)
elif (ftype == PointerFMT) :
theChar = _IPC.formatGetChar(buffer)
if (theChar == '\0') :
primFmttrs.setObjectField(dataStruct, dStart, None)
else :
transferToDataStructure(_IPC.formatChoosePtrFormat(format, parentFormat),
dataStruct, dStart, buffer, 0, isTopLevelStruct,
oclass)
elif (ftype == StructFMT) :
formatArray = _IPC.formatFormatArray(format)
structStart = 0
n = _IPC.formatFormatArrayMax(formatArray)
if (isTopLevelStruct) :
struct = dataStruct
else :
struct1 = primFmttrs.getObjectField(dataStruct, dStart)
struct = validateObject(struct1, dataStruct, dStart)
if (not struct == struct1) :
primFmttrs.setObjectField(dataStruct, dStart, struct)
for i in range(1, n) :
transferToDataStructure(_IPC.formatFormatArrayItemPtr(formatArray, i),
struct, structStart, buffer, format, False)
structStart = structStart + 1
elif (ftype == FixedArrayFMT) :
formatArray = _IPC.formatFormatArray(format)
nextFormat = _IPC.formatFormatArrayItemPtr(formatArray, 1)
size = _IPC.formatFormatArrayItemInt(formatArray, 2)
if (isTopLevelStruct and isinstance(dataStruct, (tuple, list))) :
arrayObject = dataStruct;
else :
arrayObject = primFmttrs.getObjectField(dataStruct, dStart)
arrayObject = validateArrayObject(arrayObject, size, dataStruct, dStart)
primFmttrs.setObjectField(dataStruct, dStart, arrayObject)
arrayTransferToDataStructure(arrayObject, buffer, 2,
_IPC.formatFormatArrayMax(formatArray)-1,
size, isSimpleType(nextFormat), formatArray,
nextFormat, dataStruct, dStart, False, oclass);
elif (ftype == VarArrayFMT) :
formatArray = _IPC.formatFormatArray(format)
nextFormat = _IPC.formatFormatArrayItemPtr(formatArray, 1)
# The total size of the array is the stored first
size = _IPC.formatGetInt(buffer)
numDims = _IPC.formatFormatArrayMax(formatArray) - 2
if (numDims > 1) : size = varArrayDimSize(2, formatArray, dataStruct)
if (not feasibleToDecodeVarArray(size, formatArray, dStart)) :
IPC.Raise("Python version of IPC cannot decode " + \
"multi-dimensional variable length arrays unless " + \
"the size variables appear BEFORE the array " + \
"in the enclosing structure")
elif (isTopLevelStruct) :
arrayObject = dataStruct
else :
arrayObject = primFmttrs.getObjectField(dataStruct, dStart)
arrayObject = validateArrayObject(arrayObject, size, dataStruct, dStart)
primFmttrs.setObjectField(dataStruct, dStart, arrayObject)
arrayTransferToDataStructure(arrayObject, buffer, 2, numDims+1, size,
isSimpleType(nextFormat), formatArray,
nextFormat, dataStruct, dStart, True, oclass)
elif (ftype == NamedFMT) :
transferToDataStructure(_IPC.findNamedFormat(format), dataStruct, dStart,
buffer, parentFormat, isTopLevelStruct)
elif (ftype == EnumFMT) :
primFmttrs.Decode(primFmttrs.INT_FMT, dataStruct, dStart, buffer)
else :
IPC.Raise("Unhandled format: %s" % ftype)
def DecodeElement(self, array, index, buffer):
array[index] = _IPC.formatGetChar(buffer)
def Decode(self, dataStruct, dstart, buffer):
setCharField(dataStruct, dstart, _IPC.formatGetChar(buffer))
def DecodeElement(self, array, index, buffer) : array[index] = _IPC.formatGetChar(buffer)
def Decode (self, dataStruct, dstart, buffer) : setCharField(dataStruct, dstart, _IPC.formatGetChar(buffer))