utility.h

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// -*- mode: C++; c-file-style: "virtutech-c++" -*-
 
/*
  © 2021 Intel Corporation
 
  This software and the related documents are Intel copyrighted materials, and
  your use of them is governed by the express license under which they were
  provided to you ("License"). Unless the License provides otherwise, you may
  not use, modify, copy, publish, distribute, disclose or transmit this software
  or the related documents without Intel's prior written permission.
 
  This software and the related documents are provided as is, with no express or
  implied warranties, other than those that are expressly stated in the License.
*/
 
#ifndef SIMICS_UTILITY_H
#define SIMICS_UTILITY_H
 
#include "conf-object.h"
 
namespace simics {
 
template <typename IFACE>
IFACE* get_interface(conf_object_t *obj) {
    // See bug 21722, the performance benchmark shows dynamic_cast
    // is better than cache it by a map
    auto *iface = dynamic_cast<IFACE*>(from_obj<ConfObject>(obj));
    if (!iface) {
        throw std::runtime_error {
            "The configuration object needs derive from the interface class"
        };
    }
    return iface;
}
 
class nocopy {
  protected:
    nocopy() {}
    ~nocopy() {}
 
  private:
    nocopy(const nocopy &);
    const nocopy & operator=(const nocopy &);
};
 
}  // namespace simics
 
#endif