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- #ifndef GRASS_ROWIO_H
- #define GRASS_ROWIO_H
- typedef struct
- {
- int fd; /* file descriptor for reading */
- int nrows; /* number of rows to be held in memory */
- int len; /* buffer length */
- int cur; /* current row in memory */
- void *buf; /* current data buf */
- int (*getrow)(int, void *, int, int); /* routine to do the row reads */
- int (*putrow)(int, const void *, int, int); /* routine to do the row writes */
- struct ROWIO_RCB
- {
- void *buf; /* data buffer */
- int age; /* for order of access */
- int row; /* row number */
- int dirty;
- } *rcb;
- } ROWIO;
- int rowio_fileno (const ROWIO *);
- void rowio_forget (ROWIO *,int);
- void *rowio_get (ROWIO *,int );
- void rowio_flush( ROWIO *);
- int rowio_put ( ROWIO *, const void *,int);
- void rowio_release (ROWIO *);
- int rowio_setup (ROWIO *,int , int , int , int (*)(int, void *, int, int), int (*)(int, const void *, int, int));
- #endif
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