add FailSafe versions of setters which could fail.
#ifndef TRACE_SOURCE_ACCESSOR_H
#define TRACE_SOURCE_ACCESSOR_H
#include <stdint.h>
#include "object-base.h"
#include "callback.h"
#include "ptr.h"
namespace ns3 {
class TraceSourceAccessor : public ObjectBase
{
public:
TraceSourceAccessor ();
virtual ~TraceSourceAccessor ();
void Ref (void) const;
void Unref (void) const;
virtual bool Connect (ObjectBase *obj, const CallbackBase &cb) const = 0;
virtual bool ConnectWithContext (ObjectBase *obj, std::string context, const CallbackBase &cb) const = 0;
virtual bool Disconnect (ObjectBase *obj, const CallbackBase &cb) const = 0;
virtual bool DisconnectWithContext (ObjectBase *obj, std::string context, const CallbackBase &cb) const = 0;
private:
mutable uint32_t m_count;
};
template <typename T>
Ptr<const TraceSourceAccessor> MakeTraceSourceAccessor (T a);
} // namespace ns3
namespace ns3 {
template <typename T, typename SOURCE>
Ptr<const TraceSourceAccessor>
DoMakeTraceSourceAccessor (SOURCE T::*a)
{
struct Accessor : public TraceSourceAccessor
{
virtual bool Connect (ObjectBase *obj, const CallbackBase &cb) const {
T *p = dynamic_cast<T*> (obj);
if (p == 0)
{
return false;
}
(p->*m_source).Connect (cb);
return true;
}
virtual bool ConnectWithContext (ObjectBase *obj, std::string context, const CallbackBase &cb) const {
T *p = dynamic_cast<T*> (obj);
if (p == 0)
{
return false;
}
(p->*m_source).ConnectWithContext (cb, context);
return true;
}
virtual bool Disconnect (ObjectBase *obj, const CallbackBase &cb) const {
T *p = dynamic_cast<T*> (obj);
if (p == 0)
{
return false;
}
(p->*m_source).Disconnect (cb);
return true;
}
virtual bool DisconnectWithContext (ObjectBase *obj, std::string context, const CallbackBase &cb) const {
T *p = dynamic_cast<T*> (obj);
if (p == 0)
{
return false;
}
(p->*m_source).DisconnectWithContext (cb, context);
return true;
}
SOURCE T::*m_source;
} *accessor = new Accessor ();
accessor->m_source = a;
return Ptr<const TraceSourceAccessor> (accessor, false);
}
template <typename T>
Ptr<const TraceSourceAccessor> MakeTraceSourceAccessor (T a)
{
return DoMakeTraceSourceAccessor (a);
}
} // namespace ns3
#endif /* TRACE_SOURCE_ACCESSOR_H */