#ifndef __DATA_PROVIDER_H__
#define __DATA_PROVIDER_H__

#include <future.h>

/* data acquisition flag */
extern int acquiring;

/* data queue */
extern CmtTSQHandle dataQueue;

/* callback receiving messages in the main thread */
void CVICALLBACK MessageCB (void *callbackData);

/* number of data channels */
#define NCHAN 4

/* data acquisition event */
struct event {
	struct timeval time;
	double data[NCHAN];
};

/* send messages to the main thread */
void SendMessage(int threadId, const char *frmt, ...);

/* data providers */
int CVICALLBACK FakeDataProvider (void *functionData);
int CVICALLBACK FileDataProvider (void *functionData);
int CVICALLBACK KKDataProvider (void *functionData);

#endif