//------------------------------------------------------------------------------
//      Helpers.h
//
//------------------------------------------------------------------------------

#ifndef HELPERS_H
#define HELPERS_H

// Standard Includes -----------------------------------------------------------

// System Includes -------------------------------------------------------------
#include <Looper.h>

// Project Includes ------------------------------------------------------------

// Local Includes --------------------------------------------------------------

// Local Defines ---------------------------------------------------------------

// Globals ---------------------------------------------------------------------


// helper class: quits a BLooper on destruction
class LooperQuitter {
public:
        inline LooperQuitter(BLooper *looper) : fLooper(looper) {}
        inline ~LooperQuitter()
        {
                fLooper->Lock();
                fLooper->Quit();
        }

private:
        BLooper *fLooper;
};

// helper class: deletes an object on destruction
template<typename T>
class AutoDeleter {
public:
        inline AutoDeleter(T *object, bool array = false)
                : fObject(object), fArray(array) {}
        inline ~AutoDeleter()
        {
                if (fArray)
                        delete[] fObject;
                else
                        delete fObject;
        }

protected:
        T               *fObject;
        bool    fArray;
};

// helper class: deletes an BHandler on destruction
class HandlerDeleter : AutoDeleter<BHandler> {
public:
        inline HandlerDeleter(BHandler *handler)
                : AutoDeleter<BHandler>(handler) {}
        inline ~HandlerDeleter()
        {
                if (fObject) {
                        if (BLooper *looper = fObject->Looper()) {
                                looper->Lock();
                                looper->RemoveHandler(fObject);
                                looper->Unlock();
                        }
                }
        }
};

// helper function: return the this team's ID
static inline
team_id
get_this_team()
{
        thread_info info;
        get_thread_info(find_thread(NULL), &info);
        return info.team;
}

#endif  // HELPERS_H