[simspark-devel] timer rc1

[Yuan X. <xuy...@gm...>]

Hi all,

At last, I finished the first version of timer. The main work I did are:
 * Spread the Run() function to different threads (One thread per
SimControlNode)
 * Schedule the threads by interval time of  SimControlNodes
Please see http://xuyuan.cn.googlepages.com/timer-rc1.pdf.tar.gz
for more information .

My work are based on rcssserver3d-0.5.3.
The patch I attached is suited to rcssserver3d-0.5.3.
And you can get the whole package from
http://xuyuan.cn.googlepages.com/rcssserver3d-0.5.3-timer-rc1.tar.gz

Although I have tested the code in 4 differnet computers, but I am not
sure it is bug-free.
And it can not works in old version Mesa.
If you have any problem while using the timer, please tell me. And any
comment is welcome.


I also list TODO below:

* In order to link the boost-thread library, I added -lboost_thread-mt
to LDADD in Makefile.am.
This is not a good solution, it can not find the library when the
library named -lboost_thread-gcc-mt,
and there are some warning while running configure. but I do not know
how to solve it.

* I am not sure the OpenGL library is thread safe.
Because it can not work with Mesa-6.4.1, it can work with Mesa-6.5.21
and ATI fglrx 8.31.5 .
I checked the ChanegeLog of Mesa, there are some bug-fixes of thread
safe in Mesa-6.5

* Is the XThreadInit() needed? Note that the all OpenGL function are
called in one thread.

* I write some ugly code to make the AgentControl loop in the main
thread, hwo can the Ruby be called in new thread?

* I think we should implement the sense and act latency in the next step, right?



-- 
Best wishes!

Xu Yuan
School of Automation
Southeast University, Nanjing, China

mail:   xuy...@gm...
          xy...@ya...
web:   http://xuyuan.cn.googlepages.com
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