Make Phalcon\Logger\Adapter::commit() clear the queue

CHANGELOG

@@ -129,6 +129,10 @@
  - Phalcon\Events:
    - Added support for weak references (#663)
    - Bug fix in Phalcon\Events\manager::attach() (#1331, #1337)
+ - Phalcon\Flash:
+   - Phalcon\Flash\Session::getMessage('key') returns now an empty array if the key is not found (#908, #920)
+   - Phalcon\Flash\Session::getMessages() incorrectly removed all messages (#1575)
+   - Implemented Phalcon\Flash\Session::isset() (#1342)
  - Phalcon\Forms:
    - Phalcon\Forms\Element\* classes now implement Phalcon\Form\ElementInterface
    - Added support for HTML attributes to Phalcon\Forms\Form::label() (#1029)
@@ -160,6 +164,7 @@
    - Added Phalcon\Logger\Adapter\File::getPath() (#1495, #1508)
    - Phalcon\Logger optimizations (#1716)
    - Phalcon\Logger\Adapter::setLogLevel() is honored by transactions (#1716)
+   - Phalcon\Logger\Adapter::commit() now clears the queue (#1742)
  - Phalcon\Mvc:
    - Phalcon\Mvc\Application::handle() now checks whether the class exists before include()'ing its file (#812, #818)
    - Phalcon\Mvc\Model\Criteria::fromInput() now sets _modelName (#866, #873)
@@ -200,10 +205,6 @@
    - Fixed handling of numeric namespaces/modules/controllers/actions (#1688)
    - Added Phalcon\Mvc\View::exists() and Phalcon\Mvc\View(\Simple)::getRegisteredEngines() (#1707)
    - Volt: fixed bug in email_filed() (#1723)
- - Phalcon\Flash:
-   - Phalcon\Flash\Session::getMessage('key') returns now an empty array if the key is not found (#908, #920)
-   - Phalcon\Flash\Session::getMessages() incorrectly removed all messages (#1575)
-   - Implemented Phalcon\Flash\Session::isset() (#1342)
  - Phalcon\Paginator:
    - Phalcon\Paginator\Adapter\Model returns correct results even when page number is incorrect (#1654)
    - Optimized Phalcon\Paginator\Adapter\QueryBuilder (#1632)

ext/logger/adapter.c

@@ -167,6 +167,15 @@ PHP_METHOD(Phalcon_Logger_Adapter, commit){
 			phalcon_call_method(time, *message, "gettime");
 			phalcon_call_method_p3_noret(this_ptr, "loginternal", message_str, type, time);
 		}
+
+		if (Z_REFCOUNT_P(queue) == 1 || Z_ISREF_P(queue)) {
+			zend_hash_clean(Z_ARRVAL_P(queue));
+		}
+		else {
+			PHALCON_ALLOC_GHOST_ZVAL(queue);
+			array_init(queue);
+			phalcon_update_property_this(getThis(), SL("_queue"), queue TSRMLS_CC);
+		}
 	}
 
 	RETURN_THIS();

ext/tests/issue-1742.phpt

@@ -0,0 +1,27 @@
+--TEST--
+Phalcon\Logger\Adapter::commit() does not clear the queue - https://github.com/phalcon/cphalcon/issues/1742
+--SKIPIF--
+<?php include('skipif.inc'); ?>
+--FILE--
+<?php
+class MyStreamAdapter extends \Phalcon\Logger\Adapter\Stream
+{
+	public function getQueueSize()
+	{
+		return count($this->_queue);
+	}
+}
+
+$logger = new MyStreamAdapter("php://stdout");
+$logger->begin();
+$logger->log('info', \Phalcon\Logger::INFO);
+$logger->log('critical', \Phalcon\Logger::CRITICAL);
+echo $logger->getQueueSize(), PHP_EOL;
+$logger->commit();
+echo $logger->getQueueSize(), PHP_EOL;
+?>
+--EXPECTF--
+2
+[%s, %d %s %d %d:%d:%d %s][INFO] info
+[%s, %d %s %d %d:%d:%d %s][CRITICAL] critical
+0