[Xenomai] Function to get state of lock variable

[Wolfgang Netbal <wolfgang.netbal@sigmatek.at>]

Hi All,

is there a function te returns true or false if a rtdm_lock_t variable 
is set ?
What I have to do is  to check in an interrupt routine if the list is 
locked,
if this is the case I leave the interrupt handler befor accessing the list.

I use the following code to lock the add and replace of list elements.

static rtdm_lock_t opendev_list_lock;
static int open(struct rtdm_dev_context *context, rtdm_user_info_t * 
user_info, int oflags)
{
     lrtdrv_context_t *ctx = (lrtdrv_context_t *) context->dev_private;
     rtdm_lockctx_t s;

....

     rtdm_lock_get_irqsave(&opendev_list_lock, s);
     list_add_tail(&ctx->opendev_entry, &lrtdrv_opendev_list);
     rtdm_lock_put_irqrestore(&opendev_list_lock, s);


     return 0;
}

Kind regards
-- 
Wolfgang Netbal
Softwareentwicklung
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E-Mail: wolfgang.netbal@sigmatek.at
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