Expose failed lock attempts. Get normal lifetime from config handler.

src/Cm/RedisSession/Handler.php

@@ -627,6 +627,16 @@ public function gc($maxLifeTime)
         return true;
     }
 
+    /**
+     * Get the number of failed lock attempts
+     *
+     * @return int
+     */
+    public function getFailedLockAttempts()
+    {
+        return $this->failedLockAttempts;
+    }
+
     /**
      * Get lock lifetime
      *
@@ -664,9 +674,10 @@ private function getLifeTime()
 
             // Neither bot nor first write
             if ($lifeTime === null) {
-                $this->_lifeTime = self::DEFAULT_LIFETIME;
+                $lifeTime = $this->config->getLifetime();
             }
 
+            $this->_lifeTime = $lifeTime;
             if ($this->_lifeTime < $this->_minLifetime) {
                 $this->_lifeTime = $this->_minLifetime;
             }

src/Cm/RedisSession/Handler/ConfigInterface.php

@@ -102,6 +102,13 @@ public function getCompressionLibrary();
      */
     public function getMaxConcurrency();
 
+    /**
+     * Get the normal session lifetime
+     *
+     * @return int
+     */
+    public function getLifetime();
+
     /**
      * Get the maximum session lifetime
      *