/**
* @param int $type Compression type. Use GZIP or DEFLATE constants defined in this class.
* @param int $hwm
*
* @throws \Icicle\Exception\UnsupportedError If the zlib extension is not loaded.
*/
public function __construct(int $type, int $hwm = 0)
{
// @codeCoverageIgnoreStart
if (!extension_loaded('zlib')) {
throw new UnsupportedError('zlib extension required to decode compressed streams.');
}
// @codeCoverageIgnoreEnd
parent::__construct($hwm);
switch ($type) {
case self::GZIP:
case self::DEFLATE:
$this->resource = inflate_init($type);
break;
default:
throw new InvalidArgumentError('Invalid compression type.');
}
if (null === $this->resource) {
throw new FailureException('Could not initialize inflate handle.');
}
}
/**
* @param int $type Compression type. Use GZIP or DEFLATE constants defined in this class.
* @param int $level Compression level.
* @param int $hwm
*
* @throws \Icicle\Exception\UnsupportedError If the zlib extension is not loaded.
* @throws \Icicle\Exception\InvalidArgumentError If the $type is not a valid compression type.
*/
public function __construct(int $type, int $level = self::DEFAULT_LEVEL, int $hwm = 0)
{
// @codeCoverageIgnoreStart
if (!extension_loaded('zlib')) {
throw new UnsupportedError('zlib extension required to decode compressed streams.');
}
// @codeCoverageIgnoreEnd
if (-1 > $level || 9 < $level) {
throw new InvalidArgumentError('Level must be between -1 (default) and 9.');
}
switch ($type) {
case self::GZIP:
case self::DEFLATE:
$this->resource = deflate_init($type, ['level' => $level]);
break;
default:
throw new InvalidArgumentError('Invalid compression type.');
}
if (null === $this->resource) {
throw new FailureException('Could not initialize deflate handle.');
}
parent::__construct($hwm);
}
/**
* @param int $hwm
*/
public function __construct(int $hwm = 0)
{
parent::__construct($hwm);
$this->buffer = new Buffer();
}
