PyString_AsStringAndSize(IntPtr strPtr, IntPtr dataPtrPtr, IntPtr sizePtr)
{
try
{
if (CPyMarshal.ReadPtrField(strPtr, typeof(PyObject), "ob_type") != this.PyString_Type)
{
throw PythonOps.TypeError("PyString_AsStringAndSize: not a string");
}
IntPtr dataPtr = CPyMarshal.GetField(strPtr, typeof(PyStringObject), "ob_sval");
CPyMarshal.WritePtr(dataPtrPtr, dataPtr);
int length = CPyMarshal.ReadIntField(strPtr, typeof(PyStringObject), "ob_size");
if (sizePtr == IntPtr.Zero)
{
for (int i = 0; i < length; ++i)
{
if (CPyMarshal.ReadByte(CPyMarshal.Offset(dataPtr, i)) == 0)
{
throw PythonOps.TypeError("PyString_AsStringAndSize: string contains embedded 0s, but sizePtr is null");
}
}
}
else
{
CPyMarshal.WriteInt(sizePtr, length);
}
return(0);
}
catch (Exception e)
{
this.LastException = e;
return(-1);
}
}
ReadFunctionPtrField(IntPtr addr, Type type, string field, Type dgtType)
{
IntPtr readAddr = CPyMarshal.GetField(addr, type, field);
IntPtr funcPtr = CPyMarshal.ReadPtr(readAddr);
return(Marshal.GetDelegateForFunctionPointer(funcPtr, dgtType));
}
ReadCStringField(IntPtr addr, Type type, string field)
{
IntPtr strPtrAddr = CPyMarshal.GetField(addr, type, field);
IntPtr readAddr = CPyMarshal.ReadPtr(strPtrAddr);
if (readAddr != IntPtr.Zero)
{
return(Marshal.PtrToStringAnsi(readAddr));
}
return("");
}
StoreTyped(Complex value)
{
IntPtr ptr = this.allocator.Alloc((uint)Marshal.SizeOf(typeof(PyComplexObject)));
CPyMarshal.WriteIntField(ptr, typeof(PyComplexObject), "ob_refcnt", 1);
CPyMarshal.WritePtrField(ptr, typeof(PyComplexObject), "ob_type", this.PyComplex_Type);
IntPtr cpxptr = CPyMarshal.GetField(ptr, typeof(PyComplexObject), "cval");
CPyMarshal.WriteDoubleField(cpxptr, typeof(Py_complex), "real", value.Real);
CPyMarshal.WriteDoubleField(cpxptr, typeof(Py_complex), "imag", value.Imaginary);
this.map.Associate(ptr, value);
return(ptr);
}
IC_str_getreadbuffer(IntPtr strPtr, int seg, IntPtr bufPtrPtr)
{
if (seg != 0)
{
this.LastException = PythonOps.SystemError("string buffers have only 1 segment");
return(-1);
}
IntPtr bufPtr = CPyMarshal.GetField(strPtr, typeof(PyStringObject), "ob_sval");
CPyMarshal.WritePtr(bufPtrPtr, bufPtr);
return(this.PyString_Size(strPtr));
}
ReadIntField(IntPtr addr, Type type, string field)
{
IntPtr readAddr = CPyMarshal.GetField(addr, type, field);
return(CPyMarshal.ReadInt(readAddr));
}
WriteIntField(IntPtr addr, Type type, string field, int data)
{
IntPtr writeAddr = CPyMarshal.GetField(addr, type, field);
CPyMarshal.WriteInt(writeAddr, data);
}
WriteFunctionPtrField(IntPtr addr, Type type, string field, Delegate dgt)
{
IntPtr writeAddr = CPyMarshal.GetField(addr, type, field);
CPyMarshal.WritePtr(writeAddr, Marshal.GetFunctionPointerForDelegate(dgt));
}
WriteDoubleField(IntPtr addr, Type type, string field, double data)
{
IntPtr writeAddr = CPyMarshal.GetField(addr, type, field);
CPyMarshal.WriteDouble(writeAddr, data);
}
