how to use rtems_task_variable_add ?

[Fernando RUIZ CASAS]

hi,
  shell.c contains examples for this.

  An private env pour every session and a global session for others tasks.

BRGS.
On Wed, 7 Apr 2004 16:48:55 -0400, Alan Cudmore wrote:

> 
> I want to add a variable to my task context using 
> rtems_task_variable_add.
> 
> The variable is a global unsigned integer:
> uint32 os_task_key;
> 
> I want to set this to a unique value in each task and have the OS save 
> and restore it for me.
> 
> How do I pass this in to the void **ptr type in the call?
> 
> calling it like this:
>     rtems_status =  rtems_task_variable_add ( rtems_task_id, 
> &os_task_key, NULL );
> gives me a warning. Do I need to do something like the following?
> 
> void *task_var_ptr;
> 
> task_var_ptr = (void *)&os_task_key;
> 
> rtems_status = rtems_task_variable_add(rtems_task_id, &task_var_ptr, 
> NULL );
> 
> Thanks,
> alan