sfs-internal.h

SFS是一个完全分散控制的的网路档案系统。sfslite 用于简化事件驱动网络编程的有用组件。

/* $Id: sfs-internal.h 2507 2007-01-12 20:28:54Z max $ */

/*
 *
 * Copyright (C) 1999 David Mazieres ([e-mail])
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 */

#ifndef _SFS_INTERNAL_H_
#define _SFS_INTERNAL_H_ 1

#ifndef SRPC_ONLY
# include "sfs.h"
#endif /* SRPC_ONLY */

#ifdef NO_SYSCONF
# define xdrlong_t long
# define HAVE_CMSGHDR 1
#else /* NO_SYSCONF */
# include "sysconf.h"
#endif

#include <rpc/rpc.h>

ssize_t readfd (int fd, void *buf, size_t len, int *rfdp);
ssize_t writefd (int fd, const void *buf, size_t len, int wfd);

#ifdef SRPC_ONLY

int recvfd ();

#else 

char *xstrsep_c(char **str, const char *delim);
char *strnnsep_c (char **stringp, const char *delim);
const char *getsfssockdir_c (void);

void devcon_flush (void);
void devcon_close (void);
bool_t devcon_lookup (int *fdp, const char **fsp, dev_t dev);

#endif /* SRPC_ONLY */

struct rpc_program_tc;
enum clnt_stat srpc_callraw (int fd,
			     u_int32_t prog, u_int32_t vers, u_int32_t proc,
			     xdrproc_t inproc, void *in,
			     xdrproc_t outproc, void *out, AUTH *auth);
enum clnt_stat srpc_call (const struct rpc_program_tc *, int fd, u_int32_t proc,
			  void *in, void *out);

#ifndef SPRC_ONLY

AUTH *authunixint_create (const char *host, u_int32_t uid, u_int32_t gid,
			  u_int32_t ngroups, const u_int32_t *groups);
AUTH *authunix_create_realids (void);

#endif


#ifndef __linux__
static inline u_int64_t
dev2int (dev_t dev)
{
  return dev;
}
#else /* __linux__ */
static inline u_int64_t
dev2int (dev_t dev)
{
  switch (0) case 0: case sizeof (dev) == sizeof (u_int64_t):;
  return *(u_int64_t *) &dev;
}
#undef HAVE_XDR_INT64_T
#undef HAVE_XDR_U_INT64_T
#endif /* __linux__ */

/*
 * Stuff required by arpcgen output
 */

#define RPC_EXTERN extern
#define RPC_CONSTRUCT(a, b)
#define RPC_UNION_NAME(n) u

#undef longlong_t
#define longlong_t int64_t
#undef u_longlong_t
#define u_longlong_t u_int64_t

#ifndef HAVE_XDR_U_INT64_T
bool_t xdr_u_int64_t (XDR *xdrs, u_int64_t *qp);
#endif /* !HAVE_XDR_U_INT64_T */
#ifndef HAVE_XDR_LONGLONG_T
#define xdr_longlong_t xdr_int64_t
#define xdr_u_longlong_t xdr_u_int64_t
#ifndef HAVE_XDR_INT64_T
bool_t xdr_int64_t (XDR *xdrs, int64_t *qp);
#endif /* !HAVE_XDR_INT64_T */
#endif /* HAVE_XDR_LONGLONG_T */

#define RPCGEN_ACTION(x) 0
struct rpcgen_table_tc {
  char *(*proc)();
  xdrproc_t xdr_arg;
  unsigned len_arg;
  xdrproc_t xdr_res;
  unsigned len_res;
};

struct rpc_program_tc {
  u_int32_t progno;
  u_int32_t versno;
  const struct rpcgen_table_tc *tbl;
  size_t nproc;
};

struct bigint {
  u_int len;
  char *val;
};
typedef struct bigint bigint;
bool_t xdr_bigint (XDR *xdrs, bigint *bp);

#endif /* _SFS_INTERNAL_H_ */