<?php

function destroy_table($table, $confirmation) {
  global $accountdir;
  global $categorydir;
  global $transactiondir;
  global $gecos;

  if (!$confirmation)
    return -1;

  /* Destroy account file */
  $account = $accountdir . $table . ".acc";
  if (file_exists ($account))
    unlink ($account);

  /* Destroy category file */
  $category = $categorydir . $table . ".cat";
  if (file_exists ($category))
    unlink ($category);

  /* Destroy transaction files */
  $transaction = $transactiondir . $table . ".";
  foreach (glob ($transaction . "[0-9][0-9][0-9][0-9][01][0-9]") as $file)
    unlink ($file);

  /* Destroy ids */
  $res = 0;
  foreach ($gecos as $key => $user)
    if ($user["table"] == $table) {
      $res = 1;
      unset($gecos[$key]);
    }
  if ($res)
    return store_password($id);
  
  return 0;
}

function lock($file) {
  $nb = 1;
  $file .= ".lock";
  while (file_exists ($file)) {
    sleep(rand(0, $nb++));
    ##echo $file."\n";
  }
  if (!($f = fopen($file, "w")))
    return 0;
  fclose($f);
  return 1;
}

function unlock($file) {

  $file .= ".lock";
  if ((file_exists ($file)) && (unlink ($file)))
    return 1;
  
  return 0;
}

?>