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portable/kafs.h  view on Meta::CPAN

/* We have a libkafs or libkopenafs library. */
#if HAVE_K_HASAFS
# if HAVE_KAFS_H
#  include <kafs.h>
# elif HAVE_KOPENAFS_H
#  include <kopenafs.h>
# else
struct ViceIoctl {
    void *in, *out;
    short in_size;
    short out_size;
};
int k_hasafs(void);
int k_pioctl(char *, struct ViceIoctl *, void *, int);
int k_setpag(void);
int k_unlog(void);
# endif
# ifdef HAVE_K_HASPAG
#  if !defined(HAVE_KAFS_H) && !defined(HAVE_KOPENAFS_H)
int k_haspag(void);
#  endif
# else
int k_haspag(void) __attribute__((__visibility__("hidden")));
# endif

/* We're linking directly to the OpenAFS libraries. */
#elif HAVE_LSETPAG
# if HAVE_AFS_AFSSYSCALLS_H
#  include <afs/afssyscalls.h>
# else
int lsetpag(void);
int lpioctl(char *, int, void *, int);
# endif
# define k_hasafs()           (1)
# define k_pioctl(p, c, a, f) lpioctl((p), (c), (a), (f))
# define k_setpag()           lsetpag()
# define k_unlog()            (errno = ENOSYS, -1)

int k_haspag(void) __attribute__((__visibility__("hidden")));

/* We're using our local kafs replacement. */
#elif HAVE_KAFS_REPLACEMENT
# define HAVE_K_PIOCTL 1

struct ViceIoctl {
    void *in, *out;
    short in_size;
    short out_size;
};

/* Default to a hidden visibility for all portability functions. */
#pragma GCC visibility push(hidden)

int k_hasafs(void);
int k_haspag(void);
int k_pioctl(char *, int, struct ViceIoctl *, int);
int k_setpag(void);
int k_unlog(void);

/* Undo default visibility change. */
#pragma GCC visibility pop

/* We have no kafs implementation available. */
#else
# undef HAVE_KAFS
# define k_hasafs()           (0)
# define k_haspag()           (0)
# define k_pioctl(p, c, a, f) (errno = ENOSYS, -1)
# define k_setpag()           (errno = ENOSYS, -1)
# define k_unlog()            (errno = ENOSYS, -1)
#endif

END_DECLS

#endif /* PORTABLE_KAFS_H */