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getMessageSvc.h

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// This file's extension implies that it's C, but it's really -*- C++ -*-.
/* And was taken from ATLAS CVS by bv@bnl.gov 2008/7/16.  Any bugs,
 * blame me, not them! */
#ifndef DYBKERNEL_GETMESSAGESVC_H
#define DYBKERNEL_GETMESSAGESVC_H 1

#include <cassert>
class IMessageSvc;
namespace Dyb {
    namespace Options {
        enum CreateOptions {
            Eager,
            Lazy
        };
    }
    IMessageSvc* getMessageSvc();
    IMessageSvc* getMessageSvc( const Options::CreateOptions o );
  
    class IMessageSvcHolder {
    public:
        IMessageSvcHolder() : m_ims() {}

        IMessageSvcHolder(const Options::CreateOptions o);

        IMessageSvcHolder(IMessageSvc *ims);

        IMessageSvcHolder(const IMessageSvcHolder&);
        IMessageSvcHolder& operator=(const IMessageSvcHolder&);

        ~IMessageSvcHolder();
        IMessageSvc* get() const;
        operator const IMessageSvc*() const { return this->get(); }
        operator IMessageSvc*() { return this->get(); }
    private:
        mutable IMessageSvc* m_ims; //mutable to have op() const
    };
}

#endif

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