arlad/dump_state.c

   1 /*
   2  * Copyright (c) 2001 - 2002 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 /*
  35  * Dump arla disk storage
  36  */
  37
  38 #include "arla_local.h"
  39 #include <getarg.h>
  40 #include <version.h>
  41 RCSID("$Id$");
  42
  43 static char *prefix = ARLACACHEDIR;
  44 static char *fcache_file;
  45 static char *volcache_file;
  46 static int local_version_flag;
  47 static int local_verbose_flag;
  48 static int local_help_flag;
  49
  50 static int
  51 print_fcache_entry(struct fcache_store *st, void *ptr)
  52 {
  53     printf("Fid: %s %d.%d.%d %02x/%02x\n", st->cell,
  54            st->fid.Volume, st->fid.Vnode, st->fid.Unique,
  55            (st->index >> 8) & 0xff, st->index & 0xff );
  56     if (local_verbose_flag)
  57         printf("Length: accounted: %ld fetched: %ld\n",
  58                (long)st->length, (long)st->fetched_length);
  59     return 0;
  60 }
  61
  62 static void
  63 print_vol(nvldbentry *e, const char *str, int32_t flags, int type)
  64 {
  65     if (e->flags & flags)
  66         printf (" %s: %d", str, e->volumeId[type]);
  67 }
  68
  69 static int
  70 print_volcache_entry(struct volcache_store *st, void *ptr)
  71 {
  72     printf("Volume: %s %s\n", st->cell, st->entry.name);
  73     printf("volume-id:");
  74     print_vol(&st->entry, "RW", VLF_RWEXISTS, RWVOL);
  75     print_vol(&st->entry, "RO", VLF_ROEXISTS, ROVOL);
  76     print_vol(&st->entry, "BU", VLF_BOEXISTS, BACKVOL);
  77     printf("\n");
  78     return 0;
  79 }
  80
  81 static struct getargs args[] = {
  82     {"prefix", 'p',     arg_string,     &prefix,
  83      "prefix to arla cache dir", "dir"},
  84     {"verbose", 'v',    arg_flag,       &local_verbose_flag,
  85      NULL, NULL},
  86     {"version", 0,      arg_flag,       &local_version_flag,
  87      NULL, NULL},
  88     {"help",    0,      arg_flag,       &local_help_flag,
  89      NULL, NULL}
  90 };
  91
  92 static void
  93 usage (int ret)
  94 {
  95     arg_printusage (args, sizeof(args)/sizeof(*args), NULL, "");
  96     exit (ret);
  97 }
  98
  99 int
 100 main(int argc, char **argv)
 101 {
 102     int optind = 0;
 103     int ret;
 104
 105     setprogname (argv[0]);
 106
 107     if (getarg (args, sizeof(args)/sizeof(*args), argc, argv, &optind))
 108         usage (1);
 109
 110     if (local_version_flag) {
 111         print_version(NULL);
 112         exit(0);
 113     }
 114
 115     if (fcache_file == NULL)
 116         asprintf(&fcache_file, "%s/fcache", prefix);
 117
 118     printf("fcache:\n");
 119     ret = state_recover_fcache(fcache_file, print_fcache_entry, NULL);
 120     if (ret)
 121         warn("failed with %d to dump fcache state (%s)", ret, fcache_file);
 122
 123     if (volcache_file == NULL)
 124         asprintf(&volcache_file, "%s/volcache", prefix);
 125
 126     printf("volcache\n");
 127     ret = state_recover_volcache(volcache_file, print_volcache_entry, NULL);
 128     if (ret)
 129         warn("failed with %d to dump volcache state (%s)", ret, volcache_file);
 130
 131     return 0;
 132 }