// %flair:license{
// This file is part of the Flair framework distributed under the
// CECILL-C License, Version 1.0.
// %flair:license}
/*!
 * \file SharedMem_impl.h
 * \brief Class defining a shared memory
 * \author Guillaume Sanahuja, Copyright Heudiasyc UMR UTC/CNRS 7253
 * \date 2014/02/10
 * \version 4.0
 */

#ifndef SHAREDMEM_IMPL_H
#define SHAREDMEM_IMPL_H

#include <string>

#ifdef __XENO__
#include <native/heap.h>
#include <native/mutex.h>
#else
#include <semaphore.h>
#endif

namespace flair
{
    namespace core
    {
        class SharedMem;
    }
}

/*! \class SharedMem_impl
* \brief Class defining a shared memory
*
*/

class SharedMem_impl
{
    public:
        SharedMem_impl(const flair::core::SharedMem* self,std::string name,size_t size);
        ~SharedMem_impl();

        void Write(const char* buf,size_t size);
        void Read(char* buf,size_t size);

    private:
        const flair::core::SharedMem* self;
        size_t size;
        char *mem_segment;
#ifdef __XENO__
        RT_HEAP heap;
        RT_MUTEX mutex;
        bool heap_binded;
        bool mutex_binded;
#else
        int fd;
        sem_t *sem;
        std::string sem_name,shm_name;
#endif
};

#endif // SHAREDMEM_IMPL_H