#ifndef H_FALLOC
#define H_FALLOC

/** \ingroup db1
 * \file lib/falloc.h
 * File space allocation routines.
 *
 * Best fit allocation is used, free blocks are compacted. Minimal
 * fragmentation is more important then speed. This uses 32 bit
 * offsets on all platforms and should be byte order independent.
 */

/*@access FD_t@*/

#ifdef __cplusplus
extern "C" {
#endif

/*@unused@*/ static inline long int fadGetFileSize(FD_t fd) {
    return fd->fileSize;
}

/*@unused@*/ static inline void fadSetFileSize(FD_t fd, long int fileSize) {
    fd->fileSize = fileSize;
}

/*@unused@*/ static inline unsigned int fadGetFirstFree(FD_t fd) {
    return fd->firstFree;
}

/*@unused@*/ static inline void fadSetFirstFree(FD_t fd, unsigned int firstFree) {
    fd->firstFree = firstFree;
}

/** \ingroup db1
 */
/*@null@*/ FD_t	fadOpen		(const char * path, int flags, mode_t perms);

/** \ingroup db1
 * @param fd			file handle
 */
unsigned int	fadAlloc	(FD_t fd, unsigned int size); /* 0 on failure */

/** \ingroup db1
 * @param fd			file handle
 */
void		fadFree		(FD_t fd, unsigned int offset);

/** \ingroup db1
 * @param fd			file handle
 */
int		fadFirstOffset	(FD_t fd);

/** \ingroup db1
 * @param fd			file handle
 */
int		fadNextOffset	(FD_t fd, unsigned int lastoff); /* 0 at end */

#ifdef __cplusplus
}
#endif

#endif	/* H_FALLOC */