myisamlog.c

/* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.

   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; version 2 of the License.

   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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */

/* write whats in isam.log */

#ifndef USE_MY_FUNC
#define USE_MY_FUNC
#endif

#include "myisamdef.h"
#include <my_tree.h>
#include <stdarg.h>
#ifdef HAVE_GETRUSAGE
#include <sys/resource.h>
#endif

#define FILENAME(A) (A ? A->show_name : "Unknown")

struct file_info {
  long process;
  int  filenr,id;
  uint rnd;
  char *name, *show_name;
  uchar *record;
  MI_INFO *isam;
  my_bool closed, used;
  ulong accessed;
};

struct test_if_open_param {
  char * name;
  int max_id;
};

struct st_access_param
{
  ulong min_accessed;
  struct file_info *found;
};

#define NO_FILEPOS (ulong) ~0L

extern int main(int argc,char * *argv);
static void get_options(int *argc,char ***argv);
static int examine_log(char * file_name,char **table_names);
static int read_string(IO_CACHE *file,uchar* *to,uint length);
static int file_info_compare(void *cmp_arg, void *a,void *b);
static int test_if_open(struct file_info *key,element_count count,
                        struct test_if_open_param *param);
static void fix_blob_pointers(MI_INFO *isam,uchar *record);
static int test_when_accessed(struct file_info *key,element_count count,
                              struct st_access_param *access_param);
static void file_info_free(struct file_info *info);
static int close_some_file(TREE *tree);
static int reopen_closed_file(TREE *tree,struct file_info *file_info);
static int find_record_with_key(struct file_info *file_info,uchar *record);
static void printf_log(const char *str,...);
static my_bool cmp_filename(struct file_info *file_info,char * name);

static uint verbose=0,update=0,test_info=0,max_files=0,re_open_count=0,
  recover=0,prefix_remove=0,opt_processes=0;
static char *log_filename=0, *filepath=0, *write_filename=0;
static char *record_pos_file= 0;
static ulong com_count[10][3],number_of_commands=(ulong) ~0L,
             isamlog_process;
static my_off_t isamlog_filepos,start_offset=0,record_pos= HA_OFFSET_ERROR;
static const char *command_name[]=
{"open","write","update","delete","close","extra","lock","re-open",
 "delete-all", NullS};


int main(int argc, char **argv)
{
  int error,i,first;
  ulong total_count,total_error,total_recover;
  MY_INIT(argv[0]);

  log_filename=myisam_log_filename;
  get_options(&argc,&argv);
  /* Number of MyISAM files we can have open at one time */
  max_files= (my_set_max_open_files(MY_MIN(max_files, 8)) - 6) / 2;
  if (update)
    printf("Trying to %s MyISAM files according to log '%s'\n",
           (recover ? "recover" : "update"),log_filename);
  error= examine_log(log_filename,argv);
  if (update && ! error)
    puts("Tables updated successfully");
  total_count=total_error=total_recover=0;
  for (i=first=0 ; command_name[i] ; i++)
  {
    if (com_count[i][0])
    {
      if (!first++)
      {
        if (verbose || update)
          puts("");
        puts("Commands   Used count    Errors   Recover errors");
      }
      printf("%-12s%9ld%10ld%17ld\n",command_name[i],com_count[i][0],
             com_count[i][1],com_count[i][2]);
      total_count+=com_count[i][0];
      total_error+=com_count[i][1];
      total_recover+=com_count[i][2];
    }
  }
  if (total_count)
    printf("%-12s%9ld%10ld%17ld\n","Total",total_count,total_error,
           total_recover);
  if (re_open_count)
    printf("Had to do %d re-open because of too few possibly open files\n",
           re_open_count);
  (void) mi_panic(HA_PANIC_CLOSE);
  my_free_open_file_info();
  my_end(test_info ? MY_CHECK_ERROR | MY_GIVE_INFO : MY_CHECK_ERROR);
  exit(error);
  return 0;                             /* No compiler warning */
} /* main */


static void get_options(register int *argc, register char ***argv)
{
  int help,version;
  const char *pos,*usage;
  char option;

  help=0;
  usage="Usage: %s [-?iruvDIV] [-c #] [-f #] [-F filepath/] [-o #] [-R file recordpos] [-w write_file] [log-filename [table ...]] \n";
  pos="";

  while (--*argc > 0 && *(pos = *(++*argv)) == '-' ) {
    while (*++pos)
    {
      version=0;
      switch((option=*pos)) {
      case '#':
        DBUG_PUSH (++pos);
        pos=" ";                                /* Skip rest of arg */
        break;
      case 'c':
        if (! *++pos)
        {
          if (!--*argc)
            goto err;
          else
            pos= *(++*argv);
        }
        number_of_commands=(ulong) atol(pos);
        pos=" ";
        break;
      case 'u':
        update=1;
        break;
      case 'f':
        if (! *++pos)
        {
          if (!--*argc)
            goto err;
          else
            pos= *(++*argv);
        }
        max_files=(uint) atoi(pos);
        pos=" ";
        break;
      case 'i':
        test_info=1;
        break;
      case 'o':
        if (! *++pos)
        {
          if (!--*argc)
            goto err;
          else
            pos= *(++*argv);
        }
        start_offset=(my_off_t) strtoll(pos,NULL,10);
        pos=" ";
        break;
      case 'p':
        if (! *++pos)
        {
          if (!--*argc)
            goto err;
          else
            pos= *(++*argv);
        }
        prefix_remove=atoi(pos);
        break;
      case 'r':
        update=1;
        recover++;
        break;
      case 'P':
        opt_processes=1;
        break;
      case 'R':
        if (! *++pos)
        {
          if (!--*argc)
            goto err;
          else
            pos= *(++*argv);
        }
        record_pos_file=(char*) pos;
        if (!--*argc)
          goto err;
        record_pos=(my_off_t) strtoll(*(++*argv),NULL,10);
        pos=" ";
        break;
      case 'v':
        verbose++;
        break;
      case 'w':
        if (! *++pos)
        {
          if (!--*argc)
            goto err;
          else
            pos= *(++*argv);
        }
        write_filename=(char*) pos;
        pos=" ";
        break;
      case 'F':
        if (! *++pos)
        {
          if (!--*argc)
            goto err;
          else
            pos= *(++*argv);
        }
        filepath= (char*) pos;
        pos=" ";
        break;
      case 'V':
        version=1;
        /* Fall through */
      case 'I':
      case '?':
        printf("%s  Ver 1.4 for %s at %s\n",my_progname,SYSTEM_TYPE,
               MACHINE_TYPE);
        puts("By Monty, for your professional use\n");
        if (version)
          break;
        puts("Write info about whats in a MyISAM log file.");
        printf("If no file name is given %s is used\n",log_filename);
        puts("");
        printf(usage,my_progname);
        puts("");
        puts("Options: -? or -I \"Info\"     -V \"version\"   -c \"do only # commands\"");
        puts("         -f \"max open files\" -F \"filepath\"  -i \"extra info\"");
        puts("         -o \"offset\"         -p # \"remove # components from path\"");
        puts("         -r \"recover\"        -R \"file recordposition\"");
        puts("         -u \"update\"         -v \"verbose\"   -w \"write file\"");
        puts("         -D \"myisam compiled with DBUG\"   -P \"processes\"");
        puts("\nOne can give a second and a third '-v' for more verbose.");
        puts("Normaly one does a update (-u).");
        puts("If a recover is done all writes and all possibly updates and deletes is done\nand errors are only counted.");
        puts("If one gives table names as arguments only these tables will be updated\n");
        help=1;
        break;
      default:
        printf("illegal option: \"-%c\"\n",*pos);
        break;
      }
    }
  }
  if (! *argc)
  {
    if (help)
    exit(0);
    (*argv)++;
  }
  if (*argc >= 1)
  {
    log_filename=(char*) pos;
    (*argc)--;
    (*argv)++;
  }
  return;
 err:
  (void) fprintf(stderr,"option \"%c\" used without or with wrong argument\n",
               option);
  exit(1);
}


static int examine_log(char * file_name, char **table_names)
{
  uint command,result,files_open;
  ulong access_time,length;
  my_off_t filepos;
  int lock_command,mi_result;
  char isam_file_name[FN_REFLEN],llbuff[21],llbuff2[21];
  uchar head[20];
  uchar*        buff;
  struct test_if_open_param open_param;
  IO_CACHE cache;
  File file;
  FILE *write_file;
  enum ha_extra_function extra_command;
  TREE tree;
  struct file_info file_info,*curr_file_info;
  DBUG_ENTER("examine_log");

  if ((file=my_open(file_name,O_RDONLY,MYF(MY_WME))) < 0)
    DBUG_RETURN(1);
  write_file=0;
  if (write_filename)
  {
    if (!(write_file=my_fopen(write_filename,O_WRONLY,MYF(MY_WME))))
    {
      my_close(file,MYF(0));
      DBUG_RETURN(1);
    }
  }

  init_io_cache(&cache,file,0,READ_CACHE,start_offset,0,MYF(0));
  memset(com_count, 0, sizeof(com_count));
  init_tree(&tree,0,0,sizeof(file_info),(qsort_cmp2) file_info_compare,1,
            (tree_element_free) file_info_free, NULL);
  (void) init_key_cache(dflt_key_cache,KEY_CACHE_BLOCK_SIZE,KEY_CACHE_SIZE,
                      0, 0);

  files_open=0; access_time=0;
  while (access_time++ != number_of_commands &&
         !my_b_read(&cache,(uchar*) head,9))
  {
    isamlog_filepos=my_b_tell(&cache)-9L;
    file_info.filenr= mi_uint2korr(head+1);
    isamlog_process=file_info.process=(long) mi_uint4korr(head+3);
    if (!opt_processes)
      file_info.process=0;
    result= mi_uint2korr(head+7);
    if ((curr_file_info=(struct file_info*) tree_search(&tree, &file_info,
                                                        tree.custom_arg)))
    {
      curr_file_info->accessed=access_time;
      if (update && curr_file_info->used && curr_file_info->closed)
      {
        if (reopen_closed_file(&tree,curr_file_info))
        {
          command=sizeof(com_count)/sizeof(com_count[0][0])/3;
          result=0;
          goto com_err;
        }
      }
    }
    command=(uint) head[0];
    if (command < sizeof(com_count)/sizeof(com_count[0][0])/3 &&
        (!table_names[0] || (curr_file_info && curr_file_info->used)))
    {
      com_count[command][0]++;
      if (result)
        com_count[command][1]++;
    }
    switch ((enum myisam_log_commands) command) {
    case MI_LOG_OPEN:
      if (!table_names[0])
      {
        com_count[command][0]--;                /* Must be counted explicite */
        if (result)
          com_count[command][1]--;
      }

      if (curr_file_info)
        printf("\nWarning: %s is opened with same process and filenumber\n"
               "Maybe you should use the -P option ?\n",
               curr_file_info->show_name);
      if (my_b_read(&cache,(uchar*) head,2))
        goto err;
      buff= 0;
      file_info.name=0;
      file_info.show_name=0;
      file_info.record=0;
      if (read_string(&cache, &buff, (uint) mi_uint2korr(head)))
        goto err;
      {
        uint i;
        char *pos,*to;

        /* Fix if old DOS files to new format */
        for (pos=file_info.name=(char*)buff; (pos=strchr(pos,'\\')) ; pos++)
          *pos= '/';

        pos=file_info.name;
        for (i=0 ; i < prefix_remove ; i++)
        {
          char *next;
          if (!(next=strchr(pos,'/')))
            break;
          pos=next+1;
        }
        to=isam_file_name;
        if (filepath)
          to=convert_dirname(isam_file_name,filepath,NullS);
        strmov(to,pos);
        fn_ext(isam_file_name)[0]=0;    /* Remove extension */
      }
      open_param.name=file_info.name;
      open_param.max_id=0;
      (void) tree_walk(&tree,(tree_walk_action) test_if_open,(void*) &open_param,
                     left_root_right);
      file_info.id=open_param.max_id+1;
      /*
       * In the line below +10 is added to accomodate '<' and '>' chars
       * plus '\0' at the end, so that there is place for 7 digits.
       * It is  improbable that same table can have that many entries in 
       * the table cache.
       * The additional space is needed for the sprintf commands two lines
       * below.
       */ 
      file_info.show_name=my_memdup(isam_file_name,
                                    (uint) strlen(isam_file_name)+10,
                                    MYF(MY_WME));
      if (file_info.id > 1)
        sprintf(strend(file_info.show_name),"<%d>",file_info.id);
      file_info.closed=1;
      file_info.accessed=access_time;
      file_info.used=1;
      if (table_names[0])
      {
        char **name;
        file_info.used=0;
        for (name=table_names ; *name ; name++)
        {
          if (!strcmp(*name,isam_file_name))
            file_info.used=1;                   /* Update/log only this */
        }
      }
      if (update && file_info.used)
      {
        if (files_open >= max_files)
        {
          if (close_some_file(&tree))
            goto com_err;
          files_open--;
        }
        if (!(file_info.isam= mi_open(isam_file_name,O_RDWR,
                                      HA_OPEN_WAIT_IF_LOCKED)))
          goto com_err;
        if (!(file_info.record=my_malloc(file_info.isam->s->base.reclength,
                                         MYF(MY_WME))))
          goto end;
        files_open++;
        file_info.closed=0;
      }
      (void) tree_insert(&tree, (uchar*) &file_info, 0, tree.custom_arg);
      if (file_info.used)
      {
        if (verbose && !record_pos_file)
          printf_log("%s: open -> %d",file_info.show_name, file_info.filenr);
        com_count[command][0]++;
        if (result)
          com_count[command][1]++;
      }
      break;
    case MI_LOG_CLOSE:
      if (verbose && !record_pos_file &&
          (!table_names[0] || (curr_file_info && curr_file_info->used)))
        printf_log("%s: %s -> %d",FILENAME(curr_file_info),
               command_name[command],result);
      if (curr_file_info)
      {
        if (!curr_file_info->closed)
          files_open--;
        (void) tree_delete(&tree, (uchar*) curr_file_info, 0, tree.custom_arg);
      }
      break;
    case MI_LOG_EXTRA:
      if (my_b_read(&cache,(uchar*) head,1))
        goto err;
      extra_command=(enum ha_extra_function) head[0];
      if (verbose && !record_pos_file &&
          (!table_names[0] || (curr_file_info && curr_file_info->used)))
        printf_log("%s: %s(%d) -> %d",FILENAME(curr_file_info),
                   command_name[command], (int) extra_command,result);
      if (update && curr_file_info && !curr_file_info->closed)
      {
        if (mi_extra(curr_file_info->isam, extra_command, 0) != (int) result)
        {
          fflush(stdout);
          (void) fprintf(stderr,
                       "Warning: error %d, expected %d on command %s at %s\n",
                       my_errno,result,command_name[command],
                       llstr(isamlog_filepos,llbuff));
          fflush(stderr);
        }
      }
      break;
    case MI_LOG_DELETE:
      if (my_b_read(&cache,(uchar*) head,8))
        goto err;
      filepos=mi_sizekorr(head);
      if (verbose && (!record_pos_file ||
                      ((record_pos == filepos || record_pos == NO_FILEPOS) &&
                       !cmp_filename(curr_file_info,record_pos_file))) &&
          (!table_names[0] || (curr_file_info && curr_file_info->used)))
        printf_log("%s: %s at %ld -> %d",FILENAME(curr_file_info),
                   command_name[command],(long) filepos,result);
      if (update && curr_file_info && !curr_file_info->closed)
      {
        if (mi_rrnd(curr_file_info->isam,curr_file_info->record,filepos))
        {
          if (!recover)
            goto com_err;
          if (verbose)
            printf_log("error: Didn't find row to delete with mi_rrnd");
          com_count[command][2]++;              /* Mark error */
        }
        mi_result=mi_delete(curr_file_info->isam,curr_file_info->record);
        if ((mi_result == 0 && result) ||
            (mi_result && (uint) my_errno != result))
        {
          if (!recover)
            goto com_err;
          if (mi_result)
            com_count[command][2]++;            /* Mark error */
          if (verbose)
            printf_log("error: Got result %d from mi_delete instead of %d",
                       mi_result, result);
        }
      }
      break;
    case MI_LOG_WRITE:
    case MI_LOG_UPDATE:
      if (my_b_read(&cache,(uchar*) head,12))
        goto err;
      filepos=mi_sizekorr(head);
      length=mi_uint4korr(head+8);
      buff=0;
      if (read_string(&cache,&buff,(uint) length))
        goto err;
      if ((!record_pos_file ||
          ((record_pos == filepos || record_pos == NO_FILEPOS) &&
           !cmp_filename(curr_file_info,record_pos_file))) &&
          (!table_names[0] || (curr_file_info && curr_file_info->used)))
      {
        if (write_file &&
            (my_fwrite(write_file,buff,length,MYF(MY_WAIT_IF_FULL | MY_NABP))))
          goto end;
        if (verbose)
          printf_log("%s: %s at %ld, length=%ld -> %d",
                     FILENAME(curr_file_info),
                     command_name[command], filepos,length,result);
      }
      if (update && curr_file_info && !curr_file_info->closed)
      {
        if (curr_file_info->isam->s->base.blobs)
          fix_blob_pointers(curr_file_info->isam,buff);
        if ((enum myisam_log_commands) command == MI_LOG_UPDATE)
        {
          if (mi_rrnd(curr_file_info->isam,curr_file_info->record,filepos))
          {
            if (!recover)
            {
              result=0;
              goto com_err;
            }
            if (verbose)
              printf_log("error: Didn't find row to update with mi_rrnd");
            if (recover == 1 || result ||
                find_record_with_key(curr_file_info,buff))
            {
              com_count[command][2]++;          /* Mark error */
              break;
            }
          }
          mi_result=mi_update(curr_file_info->isam,curr_file_info->record,
                              buff);
          if ((mi_result == 0 && result) ||
              (mi_result && (uint) my_errno != result))
          {
            if (!recover)
              goto com_err;
            if (verbose)
              printf_log("error: Got result %d from mi_update instead of %d",
                         mi_result, result);
            if (mi_result)
              com_count[command][2]++;          /* Mark error */
          }
        }
        else
        {
          mi_result=mi_write(curr_file_info->isam,buff);
          if ((mi_result == 0 && result) ||
              (mi_result && (uint) my_errno != result))
          {
            if (!recover)
              goto com_err;
            if (verbose)
              printf_log("error: Got result %d from mi_write instead of %d",
                         mi_result, result);
            if (mi_result)
              com_count[command][2]++;          /* Mark error */
          }
          if (!recover && filepos != curr_file_info->isam->lastpos)
          {
            printf("error: Wrote at position: %s, should have been %s",
                   llstr(curr_file_info->isam->lastpos,llbuff),
                   llstr(filepos,llbuff2));
            goto end;
          }
        }
      }
      my_free(buff);
      break;
    case MI_LOG_LOCK:
      if (my_b_read(&cache,(uchar*) head,sizeof(lock_command)))
        goto err;
      memcpy(&lock_command, head, sizeof(lock_command));
      if (verbose && !record_pos_file &&
          (!table_names[0] || (curr_file_info && curr_file_info->used)))
        printf_log("%s: %s(%d) -> %d\n",FILENAME(curr_file_info),
                   command_name[command],lock_command,result);
      if (update && curr_file_info && !curr_file_info->closed)
      {
        if (mi_lock_database(curr_file_info->isam,lock_command) !=
            (int) result)
          goto com_err;
      }
      break;
    case MI_LOG_DELETE_ALL:
      if (verbose && !record_pos_file &&
          (!table_names[0] || (curr_file_info && curr_file_info->used)))
        printf_log("%s: %s -> %d\n",FILENAME(curr_file_info),
                   command_name[command],result);
      break;
    default:
      fflush(stdout);
      (void) fprintf(stderr,
                   "Error: found unknown command %d in logfile, aborted\n",
                   command);
      fflush(stderr);
      goto end;
    }
  }
  end_key_cache(dflt_key_cache,1);
  delete_tree(&tree);
  (void) end_io_cache(&cache);
  (void) my_close(file,MYF(0));
  if (write_file && my_fclose(write_file,MYF(MY_WME)))
    DBUG_RETURN(1);
  DBUG_RETURN(0);

 err:
  fflush(stdout);
  (void) fprintf(stderr,"Got error %d when reading from logfile\n",my_errno);
  fflush(stderr);
  goto end;
 com_err:
  fflush(stdout);
  (void) fprintf(stderr,"Got error %d, expected %d on command %s at %s\n",
               my_errno,result,command_name[command],
               llstr(isamlog_filepos,llbuff));
  fflush(stderr);
 end:
  end_key_cache(dflt_key_cache, 1);
  delete_tree(&tree);
  (void) end_io_cache(&cache);
  (void) my_close(file,MYF(0));
  if (write_file)
    (void) my_fclose(write_file,MYF(MY_WME));
  DBUG_RETURN(1);
}


static int read_string(IO_CACHE *file, register uchar* *to, register uint length)
{
  DBUG_ENTER("read_string");

  if (*to)
    my_free(*to);
  if (!(*to= (uchar*) my_malloc(length+1,MYF(MY_WME))) ||
      my_b_read(file,(uchar*) *to,length))
  {
    if (*to)
      my_free(*to);
    *to= 0;
    DBUG_RETURN(1);
  }
  *((uchar*) *to+length)= '\0';
  DBUG_RETURN (0);
}                               /* read_string */


static int file_info_compare(void* cmp_arg __attribute__((unused)),
                             void *a, void *b)
{
  long lint;

  if ((lint=((struct file_info*) a)->process -
       ((struct file_info*) b)->process))
    return lint < 0L ? -1 : 1;
  return ((struct file_info*) a)->filenr - ((struct file_info*) b)->filenr;
}

        /* ARGSUSED */

static int test_if_open (struct file_info *key,
                         element_count count __attribute__((unused)),
                         struct test_if_open_param *param)
{
  if (!strcmp(key->name,param->name) && key->id > param->max_id)
    param->max_id=key->id;
  return 0;
}


static void fix_blob_pointers(MI_INFO *info, uchar *record)
{
  uchar *pos;
  MI_BLOB *blob,*end;

  pos=record+info->s->base.reclength;
  for (end=info->blobs+info->s->base.blobs, blob= info->blobs;
       blob != end ;
       blob++)
  {
    memcpy(record+blob->offset+blob->pack_length, &pos, sizeof(char*));
    pos+=_mi_calc_blob_length(blob->pack_length,record+blob->offset);
  }
}

        /* close the file with hasn't been accessed for the longest time */
        /* ARGSUSED */

static int test_when_accessed (struct file_info *key,
                               element_count count __attribute__((unused)),
                               struct st_access_param *access_param)
{
  if (key->accessed < access_param->min_accessed && ! key->closed)
  {
    access_param->min_accessed=key->accessed;
    access_param->found=key;
  }
  return 0;
}


static void file_info_free(struct file_info *fileinfo)
{
  DBUG_ENTER("file_info_free");
  if (update)
  {
    if (!fileinfo->closed)
      (void) mi_close(fileinfo->isam);
    if (fileinfo->record)
      my_free(fileinfo->record);
  }
  my_free(fileinfo->name);
  my_free(fileinfo->show_name);
  DBUG_VOID_RETURN;
}



static int close_some_file(TREE *tree)
{
  struct st_access_param access_param;

  access_param.min_accessed=LONG_MAX;
  access_param.found=0;

  (void) tree_walk(tree,(tree_walk_action) test_when_accessed,
                 (void*) &access_param,left_root_right);
  if (!access_param.found)
    return 1;                   /* No open file that is possibly to close */
  if (mi_close(access_param.found->isam))
    return 1;
  access_param.found->closed=1;
  return 0;
}


static int reopen_closed_file(TREE *tree, struct file_info *fileinfo)
{
  char name[FN_REFLEN];
  if (close_some_file(tree))
    return 1;                           /* No file to close */
  strmov(name,fileinfo->show_name);
  if (fileinfo->id > 1)
    *strrchr(name,'<')='\0';            /* Remove "<id>" */

  if (!(fileinfo->isam= mi_open(name,O_RDWR,HA_OPEN_WAIT_IF_LOCKED)))
    return 1;
  fileinfo->closed=0;
  re_open_count++;
  return 0;
}

        /* Try to find record with uniq key */

static int find_record_with_key(struct file_info *file_info, uchar *record)
{
  uint key;
  MI_INFO *info=file_info->isam;
  uchar tmp_key[MI_MAX_KEY_BUFF];

  for (key=0 ; key < info->s->base.keys ; key++)
  {
    if (mi_is_key_active(info->s->state.key_map, key) &&
        info->s->keyinfo[key].flag & HA_NOSAME)
    {
      (void) _mi_make_key(info,key,tmp_key,record,0L);
      return mi_rkey(info,file_info->record,(int) key,tmp_key,0,
                     HA_READ_KEY_EXACT);
    }
  }
  return 1;
}


static void printf_log(const char *format,...)
{
  char llbuff[21];
  va_list args;
  va_start(args,format);
  if (verbose > 2)
    printf("%9s:",llstr(isamlog_filepos,llbuff));
  if (verbose > 1)
    printf("%5ld ",isamlog_process);    /* Write process number */
  (void) vprintf((char*) format,args);
  putchar('\n');
  va_end(args);
}


static my_bool cmp_filename(struct file_info *file_info, char * name)
{
  if (!file_info)
    return 1;
  return strcmp(file_info->name,name) ? 1 : 0;
}

#include "mi_extrafunc.h"