/**
* Internal method to decrement an item.
*
* @param string $normalizedKey
* @param int $value
* @return int|bool The new value on success, false on failure
* @throws Exception\ExceptionInterface
*/
protected function internalDecrementItem(&$normalizedKey, &$value)
{
$options = $this->getOptions();
$namespace = $options->getNamespace();
$prefix = $namespace === '' ? '' : $namespace . $options->getNamespaceSeparator();
$internalKey = $prefix . $normalizedKey;
return wincache_ucache_dec($internalKey, (int) $value);
}
/**
* Decreases a value from the shared memory storage.
*
* Decreases a value from the shared memory storage. Unlike a plain
* set($key, get($key)-$step) combination, this function also implicitly
* performs locking.
*
* @param string $key Name of key to decrease.
* @param int $step Value to decrease the key by.
*
* @return int The new value.
*/
public function dec($key, $step = 1)
{
$newValue = wincache_ucache_dec($this->persistentId . $key, (int) $step, $success);
if (!$success) {
throw new SHM\InvalidArgumentException('Unable to decrease the value. Are you sure the value is int?', 302);
}
return $newValue;
}
/**
* Internal method to decrement an item.
*
* Options:
* - ttl <float>
* - The time-to-life
* - namespace <string>
* - The namespace to use
* - ignore_missing_items <boolean>
* - Throw exception on missing item
*
* @param string $normalizedKey
* @param int $value
* @param array $normalizedOptions
* @return int|boolean The new value or false on failure
* @throws Exception
*/
protected function internalDecrementItem(&$normalizedKey, &$value, array &$normalizedOptions)
{
$internalKey = $normalizedOptions['namespace'] . $this->getOptions()->getNamespaceSeparator() . $normalizedKey;
$value = (int) $value;
$newValue = wincache_ucache_dec($internalKey, $value);
if ($newValue === false) {
if (wincache_ucache_exists($internalKey)) {
throw new Exception\RuntimeException("wincache_ucache_inc('{$internalKey}', {$value}) failed");
} elseif (!$normalizedOptions['ignore_missing_items']) {
throw new Exception\ItemNotFoundException("Key '{$internalKey}' not found");
}
$newValue = -$value;
$this->addItem($normalizedKey, $newValue, $normalizedOptions);
}
return $newValue;
}
/**
* Increment the value of an item in the cache.
*
* @param string $key
* @param mixed $value
* @return int|bool
*/
public function decrement($key, $value = 1)
{
return wincache_ucache_dec($this->getPrefixWithLocale() . $key, $value);
}
/**
* Decrement a raw value
*
* @param string $id Cache ID
* @param int $offset Step/value to reduce by
* @return mixed New value on success or FALSE on failure
*/
public function decrement($id, $offset = 1)
{
$success = FALSE;
$value = wincache_ucache_dec($id, $offset, $success);
return $success === TRUE ? $value : FALSE;
}
/**
* Internal method to decrement an item.
*
* Options:
* - ttl <float>
* - The time-to-life
* - namespace <string>
* - The namespace to use
*
* @param string $normalizedKey
* @param int $value
* @param array $normalizedOptions
* @return int|boolean The new value on success, false on failure
* @throws Exception\ExceptionInterface
*/
protected function internalDecrementItem(& $normalizedKey, & $value, array & $normalizedOptions)
{
$internalKey = $normalizedOptions['namespace'] . $this->getOptions()->getNamespaceSeparator() . $normalizedKey;
return wincache_ucache_dec($internalKey, (int)$value);
}
/**
* Decrement an item.
*
* Options:
* - namespace <string> optional
* - The namespace to use (Default: namespace of object)
* - ignore_missing_items <boolean> optional
* - Throw exception on missing item or return false
*
* @param string $key
* @param int $value
* @param array $options
* @return int|boolean The new value or false or failure
* @throws Exception
*
* @triggers decrementItem.pre(PreEvent)
* @triggers decrementItem.post(PostEvent)
* @triggers decrementItem.exception(ExceptionEvent)
*/
public function decrementItem($key, $value, array $options = array())
{
$baseOptions = $this->getOptions();
if (!$baseOptions->getWritable()) {
return false;
}
$this->normalizeOptions($options);
$this->normalizeKey($key);
$args = new ArrayObject(array('key' => &$key, 'options' => &$options));
try {
$eventRs = $this->triggerPre(__FUNCTION__, $args);
if ($eventRs->stopped()) {
return $eventRs->last();
}
$internalKey = $options['namespace'] . $baseOptions->getNamespaceSeparator() . $key;
$value = (int) $value;
$newValue = wincache_ucache_dec($internalKey, $value);
if ($newValue === false) {
if (wincache_ucache_exists($internalKey)) {
throw new Exception\RuntimeException("wincache_ucache_dec('{$internalKey}', {$value}) failed");
} elseif (!$options['ignore_missing_items']) {
throw new Exception\ItemNotFoundException("Key '{$internalKey}' not found");
}
$this->addItem($key, -$value, $options);
$newValue = -$value;
}
return $this->triggerPost(__FUNCTION__, $args, $newValue);
} catch (\Exception $e) {
return $this->triggerException(__FUNCTION__, $args, $e);
}
}
/**
* Decrements the value of an integer cached key
*
* @param string $key Identifier for the data
* @param int $offset How much to subtract
* @return bool|int New decremented value, false otherwise
*/
public function decrement($key, $offset = 1)
{
$key = $this->_key($key);
return wincache_ucache_dec($key, $offset);
}
/**
* 自减缓存（针对数值缓存）
* @access public
* @param string $name 缓存变量名
* @param int $step 步长
* @return false|int
*/
public function dec($name, $step = 1)
{
$key = $this->getCacheKey($name);
return wincache_ucache_dec($key, $step);
}
public function decrement($key, $decrement)
{
$success = false;
$value = wincache_ucache_dec($key, $decrement, $success);
return $success === true ? $value : false;
}
public function decrement($key, $decrement = 1)
{
$success = false;
if (function_exists('wincache_ucache_dec')) {
$value = wincache_ucache_dec($key, $decrement, $success);
} else {
return getMessage('Cache', 'unsupported', 'Wincache');
}
return $success === true ? $value : false;
}
/**
* 递减
*
* 与原始decrement方法区别的是若不存指定KEY时返回false，这个会自动递减
*
* @param string $key
* @param int $offset
* @param int $lifetime 当递减失则时当作set使用
* @return boolean
*/
public function decrement($key, $offset = 1, $lifetime = 60)
{
if (wincache_ucache_dec($this->prefix . $key, $offset)) {
return true;
} elseif (false == wincache_ucache_exists($this->prefix . $key) && $this->set($key, $offset, $lifetime)) {
return true;
} else {
return false;
}
}
/**
* Decrease the value of a key by $amount.
*
* If the key does not exist, this method assumes that the current value is zero.
* This method returns the new value.
*
* @param string $key
* @param int $amount
* @return int
*/
public function decr($key, $amount)
{
$result = wincache_ucache_dec($key, $amount);
if ($result === false) {
wincache_ucache_set($key, 0 - $amount);
$result = 0 - $amount;
}
return $result;
}
function decr($id, $n, $group)
{
$key = $this->key($id, $group);
return wincache_ucache_dec($id, $n);
}
public function dec($key, $step = 1)
{
return wincache_ucache_dec($key, $step);
}
/**
* Decrements the value of an integer cached key
*
* @param string $key Identifier for the data
* @param int $offset How much to subtract
* @return New decremented value, false otherwise
*/
public function decrement($key, $offset = 1)
{
return wincache_ucache_dec($key, $offset);
}
} else {
return $x;
}
}
private static function wincache_stats()
/**
* Decrements the value associated with the key.
*
* The third parameter has been replaced by $this->getLastDecResult();
*
* @see wincache_ucache_dec();
*/
public function dec($key, $dec_by = 1)
{
$result = wincache_ucache_dec($key, $dec_by, $this->lastDecResult);
$this->clearInfoArrays();
return $result;
}
/**
* @inheritdoc
*/
public function decrement($name, $offset = 1)
{
$success = false;
$value = wincache_ucache_dec($name, $offset, $success);
return $success === true ? $value : false;
}
/**
* Increment the value of an item in the cache.
*
* @param string $key
* @param mixed $value
* @return void
*/
public function decrement($key, $value = 1)
{
return wincache_ucache_dec($this->prefix . $key, $value);
}
/**
* {@inheritdoc}
*/
public function decrement($key, $step = 1)
{
return wincache_ucache_dec($this->key($key), $step);
}