EAdvertisementReaderWriter.h

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#ifndef E_ADVERTISEMENT_READER_WRITER_H
#define E_ADVERTISEMENT_READER_WRITER_H

#include "EAdvertisement.h"
#include <string>
using namespace std;

#define _BSD_COMPAT
#include <sys/file.h>
#include <unistd.h>
#include <errno.h>

enum ELockResult
{
    FILE_NOT_FOUND = 0,
    FILE_SUCCESSFULLY_LOCKED = 1,
    FILE_NOT_LOCKED = 2
};

enum LockType
{
    SHARED_LOCK = 0,     // zdielany zamok
    EXCLUSIVE_LOCK = 1   // exkluzivny zamok
};

class EAdvertisementReaderWriter
{
public:
    static long WriteDisplayCount( EAdvertisement* advertisement, unsigned long busstopID, unsigned long deviceSNR );

    static ELockResult Lock( string fileName, LockType lockType, unsigned short lockTryCount, unsigned long lockTryWait, int& fileDescriptor );

    static long UnLock( int fileDescriptor );


private:
    static string GetFileName( unsigned long advertisementID, unsigned long deviceSNR );
};

#endif //E_ADVERTISEMENT_READER_WRITER_H