Method ReadBuffer

python/pyarrow/src/arrow/python/io.cc:116–122

  }

  Status ReadBuffer(int64_t nbytes, PyObject** out) {
    PyObject* result = cpp_PyObject_CallMethod(file_.obj(), "read_buffer", "(L)",
                                               static_cast<long long>(nbytes));
    PY_RETURN_IF_ERROR(StatusCode::IOError);
    *out = result;
    return Status::OK();
  }

  Status Write(const void* data, int64_t nbytes) {
    RETURN_NOT_OK(CheckClosed());