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libjio/libjio/libjio.h  view on Meta::CPAN

 * @ingroup unix
 */
off_t jlseek(jfs_t *fs, off_t offset, int whence);


/*
 * ANSI C stdio wrappers
 */

jfs_t *jfopen(const char *path, const char *mode);

int jfclose(jfs_t *stream);

jfs_t *jfreopen(const char *path, const char *mode, jfs_t *stream);

size_t jfread(void *ptr, size_t size, size_t nmemb, jfs_t *stream);

size_t jfwrite(const void *ptr, size_t size, size_t nmemb, jfs_t *stream);

int jfileno(jfs_t *stream);

int jfeof(jfs_t *stream);

void jclearerr(jfs_t *stream);

int jferror(jfs_t *stream);

int jfseek(jfs_t *stream, long offset, int whence);

long jftell(jfs_t *stream);

void jrewind(jfs_t *stream);

FILE *jfsopen(jfs_t *stream, const char *mode);


/*
 * jopen() flags.
 *
 * Internally used also for jtrans_t flags.
 */

/** Don't lock the file before operating on it.
 *
 * @see jopen()
 * @ingroup basic */
#define J_NOLOCK	1

/** No need to read rollback information.
 *
 * @see jopen()
 * @ingroup basic */
#define J_NOROLLBACK	2

/** Use lingering transactions.
 *
 * @see jopen()
 * @ingroup basic */
#define J_LINGER	4

/* Range 8-256 is reserved for future public use */

/** Marks a file as read-only.
 *
 * For internal use only, automatically set when O_RDONLY is passed to
 * jopen().
 *
 * @internal */
#define J_RDONLY	512


/*
 * jtrans_t flags.
 *
 * For internal use only, but must be in the same space as the jopen() flags.
 */

/** Marks a transaction as committed.
 * @internal */
#define J_COMMITTED	1024

/** Marks a transaction as rollbacked.
 * @internal */
#define J_ROLLBACKED	2048

/** Marks a transaction as rollbacking.
 * @internal */
#define J_ROLLBACKING	4096


/*
 * jfsck() flags
 */

/** Perform a journal cleanup. Used in jfsck().
 *
 * @see jfsck()
 * @ingroup check */
#define J_CLEANUP	1

#endif