os_tsk_prio_self

#include <rtl.h>

OS_RESULT os_tsk_prio_self (
    U8 new_prio );    /* New priority of task (1-254) */

The os_tsk_prio_self macro changes the priority of the currently running task to new_prio.

The os_tsk_prio_self function is in the RL-RTX library. The prototype is defined in rtl.h.

Note

• The value of new_prio can be anything from 1 to 254.
• The new priority stays in effect until you change it.
• Priority 0 is reserved for the idle task. If priority 0 is specified to the function, it is automatically replaced with the value of 1 by the RTX kernel. Priority 255 is also reserved.
• A higher value for new_prio indicates a higher priority.

The os_tsk_prio_self function always returns OS_R_OK.

os_tsk_pass, os_tsk_prio

#include <rtl.h>

OS_TID tsk1;

__task void task1 (void) {
   ..
  os_tsk_prio_self(10);  /* Increase its priority, for the critical section */
   ..                    /* This is a critical section */
   ..
  os_tsk_prio_self(2);   /* Decrease its priority at end of critical section */
   ..
}