From 4dcc78b9952d3e1f7f80d9b8613a3e78e2409494 Mon Sep 17 00:00:00 2001
From: Bo <bo@bowild.com>
Date: Mon, 12 Sep 2022 15:25:37 +0300
Subject: [PATCH] possibly related to issue #100 + bump

---
 examples/config.ru    | 3 +++
 ext/iodine/fio.c      | 6 ++++--
 lib/iodine/version.rb | 2 +-
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/examples/config.ru b/examples/config.ru
index 0da54737..3ae15480 100644
--- a/examples/config.ru
+++ b/examples/config.ru
@@ -12,6 +12,9 @@
 #
 #      ab -c 2000 -t 5 -n 1000000 -k http://127.0.0.1:3000/
 #      wrk -c2000 -d5 -t12 http://localhost:3000/
+#
+# Test websocket echo using the browser. For example:
+#      ws = new WebSocket("ws://localhost:3000"); ws.onmessage = function(e) {console.log("Got message!"); console.log(e.data);}; ws.onclose = function(e) {console.log("closed")}; ws.onopen = function(e) {ws.send("hi");};
 
 
 # A simple router - Checks for Websocket Upgrade and answers HTTP.
diff --git a/ext/iodine/fio.c b/ext/iodine/fio.c
index 59784a83..afa78801 100644
--- a/ext/iodine/fio.c
+++ b/ext/iodine/fio.c
@@ -3689,7 +3689,8 @@ ssize_t fio_flush(intptr_t uuid) {
   return -1;
 
 flush_rw_hook:
-  flushed = uuid_data(uuid).rw_hooks->flush(uuid, uuid_data(uuid).rw_udata);
+  if(uuid_data(uuid).rw_hooks)
+    flushed = uuid_data(uuid).rw_hooks->flush(uuid, uuid_data(uuid).rw_udata);
   fio_unlock(&uuid_data(uuid).sock_lock);
   if (!flushed)
     return 0;
@@ -3749,7 +3750,8 @@ size_t fio_flush_all(void) {
     return 0;
   size_t count = 0;
   for (uintptr_t i = 0; i <= fio_data->max_protocol_fd; ++i) {
-    if ((fd_data(i).open || fd_data(i).packet) && fio_flush(fd2uuid(i)) > 0)
+    if ((fd_data(i).open || fd_data(i).packet) &&
+        fd_data(i).rw_hooks && fio_flush(fd2uuid(i)) > 0)
       ++count;
   }
   return count;
diff --git a/lib/iodine/version.rb b/lib/iodine/version.rb
index bab9c80a..af516f6c 100644
--- a/lib/iodine/version.rb
+++ b/lib/iodine/version.rb
@@ -1,3 +1,3 @@
 module Iodine
-  VERSION = '0.7.48'.freeze
+  VERSION = '0.7.49'.freeze
 end