Close connection on flush failure

Author: trowski

lib/PgSqlHandle.php

@@ -115,7 +115,7 @@ public function __construct($handle, $socket) {
             }
         });
 
-        $this->await = Loop::onWritable($socket, static function ($watcher) use (&$deferred, $handle) {
+        $this->await = Loop::onWritable($socket, static function ($watcher) use (&$deferred, &$listeners, &$handle) {
             $flush = \pg_flush($handle);
             if ($flush === 0) {
                 return; // Not finished sending data, listen again.
@@ -124,7 +124,16 @@ public function __construct($handle, $socket) {
             Loop::disable($watcher);
 
             if ($flush === false) {
-                $deferred->fail(new FailureException(\pg_last_error($handle)));
+                $exception = new ConnectionException(\pg_last_error($handle));
+                $handle = null; // Marks connection as dead.
+
+                foreach ($listeners as $listener) {
+                    $listener->fail($exception);
+                }
+
+                if ($deferred !== null) {
+                    $deferred->fail($exception);
+                }
             }
         });
 

lib/PqHandle.php

@@ -66,11 +66,10 @@ public function __construct(pq\Connection $handle) {
 
         $this->poll = Loop::onReadable($this->handle->socket, static function ($watcher) use (&$deferred, &$listeners, &$handle) {
             if ($handle->poll() === pq\Connection::POLLING_FAILED) {
+                $exception = new ConnectionException($handle->errorMessage);
                 $handle = null; // Marks connection as dead.
                 Loop::disable($watcher);
 
-                $exception = new ConnectionException($handle->errorMessage);
-
                 foreach ($listeners as $listener) {
                     $listener->fail($exception);
                 }
@@ -97,9 +96,22 @@ public function __construct(pq\Connection $handle) {
             }
         });
 
-        $this->await = Loop::onWritable($this->handle->socket, static function ($watcher) use (&$deferred, $handle) {
-            if (!$handle->flush()) {
-                return; // Not finished sending data, continue polling for writability.
+        $this->await = Loop::onWritable($this->handle->socket, static function ($watcher) use (&$deferred, &$listeners, &$handle) {
+            try {
+                if (!$handle->flush()) {
+                    return; // Not finished sending data, continue polling for writability.
+                }
+            } catch (pq\Exception $exception) {
+                $exception = new ConnectionException("Flushing the connection failed", 0, $exception);
+                $handle = null; // Marks connection as dead.
+
+                foreach ($listeners as $listener) {
+                    $listener->fail($exception);
+                }
+
+                if ($deferred !== null) {
+                    $deferred->fail($exception);
+                }
             }
 
             Loop::disable($watcher);