IC__PyString_Resize_NoGrow(IntPtr strPtr, int newSize)
{
CPyMarshal.WriteIntField(strPtr, typeof(PyStringObject), "ob_size", newSize);
IntPtr bufPtr = CPyMarshal.Offset(
strPtr, Marshal.OffsetOf(typeof(PyStringObject), "ob_sval"));
IntPtr terminatorPtr = CPyMarshal.Offset(
bufPtr, newSize);
CPyMarshal.WriteByte(terminatorPtr, 0);
return(0);
}
Zero(IntPtr start, int bytes)
{
int ptrs = bytes / CPyMarshal.PtrSize;
bytes = bytes % CPyMarshal.PtrSize;
for (int i = 0; i < ptrs; i++)
{
CPyMarshal.WritePtr(start, IntPtr.Zero);
start = CPyMarshal.Offset(start, CPyMarshal.PtrSize);
}
for (int i = 0; i < bytes; i++)
{
CPyMarshal.WriteByte(start, 0);
start = CPyMarshal.Offset(start, 1);
}
}
AllocPyString(int length)
{
uint size = (uint)(Marshal.SizeOf(typeof(PyStringObject)) + length);
IntPtr data = this.allocator.Alloc(size);
PyStringObject s = new PyStringObject();
s.ob_refcnt = 1;
s.ob_type = this.PyString_Type;
s.ob_size = length;
s.ob_shash = -1;
s.ob_sstate = 0;
Marshal.StructureToPtr(s, data, false);
IntPtr terminator = CPyMarshal.Offset(data, size - 1);
CPyMarshal.WriteByte(terminator, 0);
return(data);
}
