gdatalogger.h

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/*****************************************************************************
// File: GDataLogger.h
// Contents: Header for GDataLogger functions.
// Author: G. A. Borges.
*****************************************************************************/
#ifndef GDATALOGGER_H
#define GDATALOGGER_H

#ifdef __cplusplus
 extern "C" {
#endif 

#define GDATALOGGER_MAXVARIABLES 150

typedef struct{
        char VariableName[100];
        char VariableUnit[50];
        long int GMatlabDataFileIndex;
        int Nr;
        int Nc;
        double *CircularQueue;
        GQUEUECONTROL CircularQueueControl;
    int HasBeenWritten;
} GDATALOGGERVARIABLE,*PGDATALOGGERVARIABLE;

typedef struct{
        GDATALOGGERVARIABLE Variables[GDATALOGGER_MAXVARIABLES];
        int m_NumberOfVariables;
        GMATLABDATAFILECONFIG GMatlabDataFileConfig;
}GDATALOGGER,*PGDATALOGGER;

#define QUEUE_MAXDESTINATIONS    4
#define QUEUE_DESTINATION_FILE   QUEUE_READ_GATE_0
#define QUEUE_DESTINATION_IPC    QUEUE_READ_GATE_1
#define QUEUE_DESTINATION_USER1  QUEUE_READ_GATE_2
#define QUEUE_DESTINATION_USER2  QUEUE_READ_GATE_3

#define GDATALOGGER_IPC_MAXQUEUESIZE            1000
#define GDATALOGGER_IPC_FLAGIDDLE                       0
#define GDATALOGGER_IPC_FLAGREQUESTDATA         1
#define GDATALOGGER_IPC_FLAGDATAAVAILABLE       2
#define GDATALOGGER_IPC_FLAGNOTEXIST            3
#define GDATALOGGER_IPC_FLAGTIMEOUT                     4

typedef struct {
        char VariableName[100];
        char VariableUnit[50];
        double QueueData[GDATALOGGER_IPC_MAXQUEUESIZE];
        int  QueueSize;
        int  Flag;
} GDATALOGGERIPC_SHM;

#if DATALOGGER_COMPILE_FOR_XENOMAI
        #define GDATALOGGER_IPC_STATEFILE "gdataloggershm"
#else
        #define GDATALOGGER_IPC_STATEFILE "/gdatalogger.shm"
#endif

int gDataLogger_Init(PGDATALOGGER pgDataLogger, char *filename, char *dirname);
int gDataLogger_DeclareVariable(PGDATALOGGER pgDataLogger, char *varname, char *varunit, int nrows, int ncols, int queuesize);
int gDataLogger_InsertVariable(PGDATALOGGER pgDataLogger, char *varname, double *varvalue);
int gDataLogger_IPC_RetrieveVariable(char *varname, char *varunit, double *pbuffer, int *bufferlen);
int gDataLogger_MatfileUpdate(PGDATALOGGER pgDataLogger);
int gDataLogger_IPCUpdate(PGDATALOGGER pgDataLogger);
int gDataLogger_Close(PGDATALOGGER pgDataLogger);

#ifdef __cplusplus
}
#endif 

#endif /* GDATALOGGER_H */