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#ifndef GM_WORKER_DB
#define GM_WORKER_DB

#include <pthread.h>

#define DB_TABLES       5
#define DB_NUM_BUFFERS  3       // must be >= 3 or dead lock may occur
#define DB_MAX_BUFFER   50

struct worker_db_load {
        void *data;     //pointer to data (type is determined by table)
        int type;       //parameter (delete/update/insert/etc)
        bool *lock;     //pointer to approriate lock on data (stop scanner of updating till update is complete
};

struct worker_db {
        pthread_mutex_t write_mutex;    //write to buffer
        pthread_mutex_t stack_mutex;    //stack/loadBuffer pointer changes

        pthread_cond_t full_buffer;     //when a buffer is ready to be sent to db

        //work buffered
        worker_db_load loadBuffer[DB_TABLES][DB_NUM_BUFFERS][DB_MAX_BUFFER];
        //what id currently writing to / size of buffer
        int loadBufferIndex[DB_TABLES][DB_NUM_BUFFERS];

        //buffer id write or sql is on
        int write_buffer[DB_TABLES];
        int sql_buffer[DB_TABLES];

        //pointers to current write buffers
        worker_db_load **writeLoadBuffer[DB_TABLES];
        int **writeLoadBufferIndex[DB_TABLES];
};

#endif