when using close button of X window to close demo_hello app, it logs out 'XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"'

What steps will reproduce the problem?
1. mkdir -p build && cd build
2. ../configure --with-backend=linux-x11:640x480 --with-fontengine=freetype 
--with-inputmethod=gpinyin --enable-gtk-doc-html=no
3. make
4. ./src/demos/demo_hello
5. using the close button of X window to terminate the ftk gui app

What is the expected output? What do you see instead?
no error message from xlib.
error message like this:
'XIO: fatal IO error 11 (Resource temporarily unavailable) on X server":0.0"
      after 36 requests (36 known processed) with 0 events remaining.'

What version of the product are you using? On what operating system?
r1064.
Ubuntu 10.04 32-bit.

Please provide any additional information below.

Original issue reported on code.google.com by HotForest on 14 Jul 2011 at 9:34

Attachments:

0001-fix-the-XIO-fatal-IO-error-11-when-using-x11-as-back.patch

huiqiaoqiu / ftk

when using close button of X window to close demo_hello app, it logs out 'XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0"' #13