diff options
Diffstat (limited to 'system/libraries/Session/drivers')
| -rw-r--r-- | system/libraries/Session/drivers/Session_memcached_driver.php | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/system/libraries/Session/drivers/Session_memcached_driver.php b/system/libraries/Session/drivers/Session_memcached_driver.php index d017dfb2f..e9246443c 100644 --- a/system/libraries/Session/drivers/Session_memcached_driver.php +++ b/system/libraries/Session/drivers/Session_memcached_driver.php @@ -204,10 +204,16 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa if (isset($this->_lock_key)) { + $key = $this->_key_prefix.$session_id; + $this->_memcached->replace($this->_lock_key, time(), 300); if ($this->_fingerprint !== ($fingerprint = md5($session_data))) { - if ($this->_memcached->set($this->_key_prefix.$session_id, $session_data, $this->_config['expiration'])) + + if ( + $this->_memcached->replace($key, $session_data, $this->_config['expiration']) + OR ($this->_memcached->getResultCode() === Memcached::RES_NOTSTORED && $this->_memcached->set($key, $session_data, $this->_config['expiration'])) + ) { $this->_fingerprint = $fingerprint; return $this->_success; @@ -305,9 +311,12 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa // correct session ID. if ($this->_lock_key === $this->_key_prefix.$session_id.':lock') { - return ($this->_memcached->replace($this->_lock_key, time(), 300)) - ? $this->_success - : $this->_failure; + if ( ! $this->_memcached->replace($this->_lock_key, time(), 300)) + { + return ($this->_memcached->getResultCode() === Memcached::RES_NOTSTORED) + ? $this->_memcached->set($this->_lock_key, time(), 300) + : FALSE; + } } // 30 attempts to obtain a lock, in case another request already has it @@ -324,7 +333,7 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa if ( ! $this->_memcached->set($lock_key, time(), 300)) { log_message('error', 'Session: Error while trying to obtain lock for '.$this->_key_prefix.$session_id); - return $this->_failure; + return FALSE; } $this->_lock_key = $lock_key; @@ -335,11 +344,11 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa if ($attempt === 30) { log_message('error', 'Session: Unable to obtain lock for '.$this->_key_prefix.$session_id.' after 30 attempts, aborting.'); - return $this->_failure; + return FALSE; } $this->_lock = TRUE; - return $this->_success; + return TRUE; } // ------------------------------------------------------------------------ @@ -367,5 +376,4 @@ class CI_Session_memcached_driver extends CI_Session_driver implements SessionHa return TRUE; } - -} +}
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