CExternalDatasetAPI.h

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#ifndef __BUSBOY_C_EXTERNAL_DATASET_API_H__
#define __BUSBOY_C_EXTERNAL_DATASET_API_H__

#include <stddef.h>
#include "CExternalDataFileAPI.h"
#include "CExternalRandomAccessFileAPI.h"

typedef struct CExternalDatasetStruct *CExternalDatasetPtr;

#ifdef __cplusplus
extern "C" {
#endif

typedef CExternalDataFilePtr (*CExternalFindFunctionPtr) (
        const char* serializedKey
);

typedef bool (*CExternalAddFunctionPtr) (
        CExternalDataFilePtr file
);

typedef const char* (*CExternalFileNameFunctionPtr) (
        const char* serializedKey
);

typedef bool (*CExternalQueryOnlyFunctionPtr) ();


typedef CExternalRandomAccessFileSourcePtr (*CExternalRandomAccessSourceFunctionPtr) (
        const char* serializedKey
);

typedef CExternalRandomAccessFileSinkPtr (*CExternalRandomAccessSinkFunctionPtr) (
        const char* serializedKey
);


struct CExternalDatasetCallbacksStruct {
        CExternalFindFunctionPtr findFileCallback;
        CExternalAddFunctionPtr addFileCallback;
        CExternalFileNameFunctionPtr getFileNameCallback;
        CExternalQueryOnlyFunctionPtr isQueryOnlyCallback;
        CExternalRandomAccessSourceFunctionPtr randomAccessSourceCallback;
        CExternalRandomAccessSinkFunctionPtr randomAccessSinkCallback;
};

typedef struct CExternalDatasetCallbacksStruct CExternalDatasetCallbacks; 


CExternalDatasetPtr CExternalDataset_newDataset(
        const char* name,
        const CExternalDatasetCallbacks &callbacks
);

const char* CExternalDataset_getName(CExternalDatasetPtr datasetHandle);

const char* CExternalDataset_getSerializedDataset(CExternalDatasetPtr datasetHandle);

void  CExternalDataset_setSerializedDataset(
        CExternalDatasetPtr datasetHandle,
        const char* serializedDataset
);

void CExternalDataset_addDataFile(
        CExternalDatasetPtr datasetHandle,
        CExternalDataFilePtr fileHandle
);

CExternalDataFilePtr CExternalDataset_getDataFile(
        CExternalDatasetPtr datasetHandle,
        int index
);

size_t CExternalDataset_getFileCount(CExternalDatasetPtr datasetHandle);

#ifdef __cplusplus
}
#endif 

#endif