/usr/lib/grass64/include/grass/rowio.h is in grass-dev 6.4.3-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | #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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