db_finalize(&q);
  db_multi_exec("UPDATE vfile SET mtime=NULL WHERE vid=%d AND mrid>0", vid);
}

/*
** Check to see if the directory named in zPath is the top of a checkout.
** In other words, check to see if directory pPath contains a file named
** "_FOSSIL_" or ".fos".  Return true or false.
** "_FOSSIL_" or ".fslckout".  Return true or false.
*/
int vfile_top_of_checkout(const char *zPath){
  char *zFile;
  int fileFound = 0;

  zFile = mprintf("%s/_FOSSIL_", zPath);
  fileFound = file_size(zFile)>=1024;
  fossil_free(zFile);
  if( !fileFound ){
    zFile = mprintf("%s/.fslckout", zPath);
    fileFound = file_size(zFile)>=1024;
    fossil_free(zFile);
  }

  /* Check for ".fos" for legacy support.  But the use of ".fos" as the
  ** per-checkout database name is deprecated.  At some point, all support
  ** for ".fos" will end and this code should be removed.  This comment
  ** added on 2012-02-04.
  */
  if( !fileFound ){
    zFile = mprintf("%s/.fos", zPath);
    fileFound = file_size(zFile)>=1024;
    fossil_free(zFile);
  }
  return fileFound;
}