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function is not described

PclZipUtilCopyBlock() WP 1.0

Function : PclZipUtilCopyBlock() Description : Parameters : $p_mode : read/write compression mode
0 : src & dest normal
1 : src gzip, dest normal
2 : src normal, dest gzip
3 : src & dest gzip Return Values :

No Hooks.

Return

Nothing (null).

Usage

PclZipUtilCopyBlock( $p_src, $p_dest, $p_size, $p_mode );

Code of PclZipUtilCopyBlock: wp-admin/includes/class-pclzip.php VER 5.1.1

<?php
function PclZipUtilCopyBlock($p_src, $p_dest, $p_size, $p_mode=0)
{
  $v_result = 1;

  if ($p_mode==0)
  {
    while ($p_size != 0)
    {
      $v_read_size = ($p_size < PCLZIP_READ_BLOCK_SIZE ? $p_size : PCLZIP_READ_BLOCK_SIZE);
      $v_buffer = @fread($p_src, $v_read_size);
      @fwrite($p_dest, $v_buffer, $v_read_size);
      $p_size -= $v_read_size;
    }
  }
  else if ($p_mode==1)
  {
    while ($p_size != 0)
    {
      $v_read_size = ($p_size < PCLZIP_READ_BLOCK_SIZE ? $p_size : PCLZIP_READ_BLOCK_SIZE);
      $v_buffer = @gzread($p_src, $v_read_size);
      @fwrite($p_dest, $v_buffer, $v_read_size);
      $p_size -= $v_read_size;
    }
  }
  else if ($p_mode==2)
  {
    while ($p_size != 0)
    {
      $v_read_size = ($p_size < PCLZIP_READ_BLOCK_SIZE ? $p_size : PCLZIP_READ_BLOCK_SIZE);
      $v_buffer = @fread($p_src, $v_read_size);
      @gzwrite($p_dest, $v_buffer, $v_read_size);
      $p_size -= $v_read_size;
    }
  }
  else if ($p_mode==3)
  {
    while ($p_size != 0)
    {
      $v_read_size = ($p_size < PCLZIP_READ_BLOCK_SIZE ? $p_size : PCLZIP_READ_BLOCK_SIZE);
      $v_buffer = @gzread($p_src, $v_read_size);
      @gzwrite($p_dest, $v_buffer, $v_read_size);
      $p_size -= $v_read_size;
    }
  }

  // ----- Return
  return $v_result;
}