attempt to fix segfault

.travis.yml

@@ -10,7 +10,11 @@ matrix:
   allow_failures:
     - php: hhvm
 
+before_script:
+    - sudo apt-get install gdb
+
 install: ./travis-init.sh
 
 script:
-  - phpunit --coverage-text
+    - phpunit --coverage-text
+    - cat script.gdb | sudo gdb --args /home/travis/.phpenv/versions/5.6.0RC4/bin/php /home/travis/.phpenv/versions/5.6.0RC4/bin/phpunit

script.gdb

@@ -0,0 +1,3 @@
+set env MALLOC_CHECK_=3
+run
+backtrace full

src/ExtEvLoop.php

@@ -16,6 +16,7 @@ class ExtEvLoop implements LoopInterface
     private $timers;
     private $readEvents     = array();
     private $writeEvents    = array();
+
     private $running        = false;
 
     public function __construct()
@@ -58,7 +59,7 @@ public function removeReadStream($stream)
     {
         $key = (int) $stream;
         if(isset($this->readEvents[$key])) {
-            $this->readEvents[$key]->stop();
+            $this->readEvents[$key]->stop();   
             unset($this->readEvents[$key]);
         }
     }
@@ -72,8 +73,8 @@ public function removeWriteStream($stream)
     {
         $key = (int) $stream;
         if(isset($this->writeEvents[$key])) {
-            $this->writeEvents[(int)$stream]->stop();
-            unset($this->writeEvents[(int)$stream]);
+            $this->writeEvents[$key]->stop();
+            unset($this->writeEvents[$key]);
         }
     }
 
@@ -147,7 +148,11 @@ public function cancelTimer(TimerInterface $timer)
         if (isset($this->timers[$timer])) {
             /* stop EvTimer */
             $this->timers[$timer]->stop();
-            $this->timers->detach($timer);
+
+            /* defer timer */
+            $this->nextTick(function() use ($timer) {
+                $this->timers->detach($timer);    
+            });
         }
     }
 
@@ -225,4 +230,20 @@ public function stop()
     {
         $this->running = false;
     }
+
+    public function __destruct()
+    {
+        // mannually stop all watchers
+        foreach($this->timers as $timer) {
+            $this->timers[$timer]->stop();            
+        }
+
+        foreach($this->readEvents as $event) {
+            $event->stop();
+        }
+
+        foreach($this->writeEvents as $event) {
+            $event->stop();
+        }
+    }
 }

tests/AbstractLoopTest.php

@@ -355,25 +355,6 @@ function () {
         $this->loop->run();
     }
 
-    public function testPeriodTimerExecutes()
-    {
-        $count = 0;
-        $this->loop->addPeriodicTimer(
-            0.001,
-            function ($timer) use (&$count) {
-                echo 'tick';
-                $count++;
-                if($count === 3) {
-                    $timer->cancel();
-                }
-            }
-        );
-
-        $this->expectOutputString('tickticktick');
-
-        $this->loop->run();        
-    }
-
     public function testFutureTick()
     {
         $called = false;

travis-init.sh

@@ -27,6 +27,7 @@ if [ "$TRAVIS_PHP_VERSION" != "hhvm" ]; then
     phpize
     ./configure
     make
+    make test
     make install
     popd
     echo "extension=ev.so" >> "$(php -r 'echo php_ini_loaded_file();')"