[rtl] Compiling errors in rt_ipc(semaphore) under rtlinux-2.0

[Sung-Gwan Heo <heo@turbotek.co.kr>]

I tried rt_ipc in rtl/semaphore under rtlinux-2.0pre5.
I uncommented CONFIG_RTL_USE_V1_API in rtl/include/rtl_conf.h
and recompiled rtlinux-2.0pre5 modules because rt_ipc uses
rtlinux-1.x style task API.

But I failed to compile the rt_ipc.c. To debug this error, 
I read some source files and could find some mistakes.

Although the rt_ipc package is v0.3, it was modifed from
original v0.3 package. The rt_ipc.c file in rtl/semaphore 
has the following pthread codes:
	
  int rt_task_delay(RTIME duration)
  {
  	...
  	/* mark the task as delayed */
  	pthread_self()->spec.it_value = RTIME_to_timespec(duration);
  	pthread_self()->spec.it_interval = RTL_TIME_ZERO;
  	pthread_self()->state = RTL_THREAD_DELAYED;

  	...
  }

The compilation errors are the followings:
 1. pthread_self() returns pthread_t data type(type-defined as struct
   rtl_thread_struct date type defined in rtl/include/rtl_sched.h)
   but the struct has no member named 'spec'.
 2. RTL_TIME_ZERO is undeclared.

The rt_ipc under rtlinux-2.0pre6 has the same code.

Is there someone who succeeded in compiling rt_ipc on rtlinux-2.0?
If the rt_ipc does not work yet, what should I do to contribute 
toward the completion of this work?

Thanks in advance.

 
Heo, Sung-Gwan
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