Ejemplo n.º 1
0
def data_descriptor_from_ctypes(cdata, writable):
    """
    Parameters
    ----------
    cdata : ctypes data instance
        The ctypes data object which owns the data.
    writable : bool
        Should be true if the data is writable, flase
        if it's read-only.
    """
    ds = datashape.from_ctypes(type(cdata))
    access = "readwrite" if writable else "readonly"
    dyndarr = _lowlevel.array_from_ptr(ndt.type(str(ds)),
                                       ctypes.addressof(cdata), cdata, access)
    return DyNDDataDescriptor(dyndarr)
Ejemplo n.º 2
0
def data_descriptor_from_ctypes(cdata, writable):
    """
    Parameters
    ----------
    cdata : ctypes data instance
        The ctypes data object which owns the data.
    writable : bool
        Should be true if the data is writable, flase
        if it's read-only.
    """
    ds = datashape.from_ctypes(type(cdata))
    access = "readwrite" if writable else "readonly"
    dyndtp = " * ".join(["cfixed[%d]" % int(x) for x in ds[:-1]] + [str(ds[-1])])
    dyndarr = _lowlevel.array_from_ptr(ndt.type(dyndtp), ctypes.addressof(cdata), cdata, access)
    return DyND_DDesc(dyndarr)
Ejemplo n.º 3
0
def data_descriptor_from_ctypes(cdata, writable):
    """
    Parameters
    ----------
    cdata : ctypes data instance
        The ctypes data object which owns the data.
    writable : bool
        Should be true if the data is writable, flase
        if it's read-only.
    """
    ds = datashape.from_ctypes(type(cdata))
    access = "readwrite" if writable else "readonly"
    dyndarr = _lowlevel.array_from_ptr(ndt.type(str(ds)),
                    ctypes.addressof(cdata), cdata,
                    access)
    return DyNDDataDescriptor(dyndarr)
Ejemplo n.º 4
0
def data_descriptor_from_ctypes(cdata, writable):
    """
    Parameters
    ----------
    cdata : ctypes data instance
        The ctypes data object which owns the data.
    writable : bool
        Should be true if the data is writable, flase
        if it's read-only.
    """
    ds = datashape.from_ctypes(type(cdata))
    access = "readwrite" if writable else "readonly"
    dyndtp = ' * '.join(['cfixed[%d]' % int(x)
                         for x in ds[:-1]] + [str(ds[-1])])
    dyndarr = _lowlevel.array_from_ptr(ndt.type(dyndtp),
                                       ctypes.addressof(cdata), cdata, access)
    return DyND_DDesc(dyndarr)