repcmds.h

Go to the documentation of this file.

/* BLURB gpl
 
                           Coda File System
                              Release 6
 
          Copyright (c) 1987-2003 Carnegie Mellon University
                  Additional copyrights listed below
 
This  code  is  distributed "AS IS" without warranty of any kind under
the terms of the GNU General Public Licence Version 2, as shown in the
file  LICENSE.  The  technical and financial  contributors to Coda are
listed in the file CREDITS.
 
                        Additional copyrights
                           none currently
 
#*/
 
#ifndef _REPCMDS_H_
#define _REPCMDS_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
 
#include <ctype.h>
#include <errno.h>
#include <inodeops.h>
#include <netinet/in.h>
#include <parser.h>
#include <rpc2/rpc2.h>
#include <setjmp.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/file.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <netdb.h>
 
#include <auth2.h>
#include <avenus.h>
#include "coda_assert.h"
#include "coda_string.h"
#include <vice.h>
 
#include <copyfile.h>
 
#ifdef __cplusplus
}
#endif
 
#include <inconsist.h>
#include <repio.h>
#include <resolve.h>
#include <venusioctl.h>
 
#define MAXVOLNAME 32
#define MAXHOSTS 8 /* XXXX --- get the true definition for this */
#define HOSTNAMLEN 64 /* XXXX -- get the true definition for this */
/* MAXPATHLEN defined in <sys/param.h>, length in bytes of OUT path parameters */
#define DEF_BUF 2048 /* XXXX -- temporary buffer size */
 
#define LOCAL_GLOBAL 1
#define SERVER_SERVER 2
#define MIXED_CONFLICT 3
 
/* Replicated filesystem object under repair */
struct conflict {
    ViceFid fid;
    ViceVersionVector VV;
    struct replica *head; /* Singly-linked list of volume replicas */
    char rodir[MAXPATHLEN]; /* directory where replicas are mounted */
    char realm[HOSTNAMLEN];
    char local; /* a flag indicating whether this is a local volume entry
           * 0: server/server conflict
           * 1: local/global conflict
           * 2: mixed lg/ss XXX This comment is all wrong*/
    char dirconf; /* a flag indicating whether this is a directory conflict
           *  -- if true it's a directory conflict, else a file conflict */
};
 
/* Element in singly-linked list of volume replicas of a replicated volume */
struct replica {
    ViceFid fid; /* fid of this replica*/
    ViceVersionVector VV;
    char realmname[HOSTNAMLEN]; /* realm name of this object */
    char srvname
        [HOSTNAMLEN]; /* XXX: name of server on which this replica is located? */
    char compname[NAME_MAX]; /* component name corresponding to this rw id */
    struct replica *next; /* next replica ptr */
};
 
/* Non-interactive repair calls */
int BeginRepair(char *pathname, struct conflict **conf, char *msg, int msgsize);
int ClearInc(struct conflict *conf, char *msg, int msgsize);
int CompareDirs(struct conflict *conf, const char *fixfile, struct repinfo *inf,
                char *msg, int msgsize);
int DoRepair(struct conflict *conf, char *ufixpath, FILE *res, char *msg,
             int msgsize);
int EndRepair(struct conflict *conf, int commit, char *msg, int msgsize);
int RemoveInc(struct conflict *conf, char *msg, int msgsize);
 
/* Other utility functions */
int dorep(struct conflict *conf, char *fixpath, char *buf, int len);
int makedff(char *extfile, char *intfile, char *msg, int msgsize);
 
/* Volume data structure manipulation routines -- rvol.cc */
int repair_newrep(char *reppath, struct conflict **conf, char *msg,
                  int msgsize);
int repair_mountrw(struct conflict *conf, char *msg, int msgsize);
void repair_finish(struct conflict *conf);
 
/* Path processing routines -- path.cc */
int repair_getfid(char *path, ViceFid *outfid, char *outrealm,
                  ViceVersionVector *outvv, char *msg, int msgsize);
int repair_inconflict(char *name, ViceFid *conflictfid, char *conflictrealm);
int repair_isleftmost(char *path, char *realpath, int len, char *msg,
                      int msgsize);
 
#define freeif(pointer)        \
    do {                       \
        if (pointer != NULL) { \
            free(pointer);     \
            pointer = NULL;    \
        }                      \
    } while (0)
 
#define strerr(str, len, msg...)       \
    do {                               \
        if (str != NULL)               \
            snprintf(str, len, ##msg); \
    } while (0)
 
#endif /* _REPCMDS_H_ */