diff options
| -rw-r--r-- | c-user/task_manager.rst | 70 |
1 files changed, 39 insertions, 31 deletions
diff --git a/c-user/task_manager.rst b/c-user/task_manager.rst index b246e57..0ac61b4 100644 --- a/c-user/task_manager.rst +++ b/c-user/task_manager.rst @@ -1435,8 +1435,9 @@ CALLING SEQUENCE: .. code-block:: c rtems_status_code rtems_task_set_scheduler( - rtems_id task_id, - rtems_id scheduler_id + rtems_id task_id, + rtems_id scheduler_id, + rtems_task_priority priority ); DIRECTIVE STATUS CODES: @@ -1447,13 +1448,20 @@ DIRECTIVE STATUS CODES: - successful operation * - ``RTEMS_INVALID_ID`` - invalid task or scheduler id - * - ``RTEMS_INCORRECT_STATE`` + * - ``RTEMS_INVALID_PRIORITY`` + - invalid task priority + * - ``RTEMS_RESOURCE_IN_USE`` - the task is in the wrong state to perform a scheduler change + * - ``RTEMS_UNSATISFIED`` + - the processor set of the scheduler is empty + * - ``RTEMS_ILLEGAL_ON_REMOTE_OBJECT`` + - not supported on remote tasks DESCRIPTION: Sets the scheduler of a task identified by ``task_id`` to the scheduler identified by ``scheduler_id``. The scheduler of a task is initialized to - the scheduler of the task that created it. + the scheduler of the task that created it. The priority of the task is set + to ``priority``. NOTES: None. @@ -1465,35 +1473,35 @@ EXAMPLE: #include <rtems.h> #include <assert.h> - void task(rtems_task_argument arg); + void task( rtems_task_argument arg ); - void example(void) + void example( void ) { - rtems_status_code sc; - rtems_id task_id; - rtems_id scheduler_id; - rtems_name scheduler_name; - - scheduler_name = rtems_build_name('W', 'O', 'R', 'K'); - - sc = rtems_scheduler_ident(scheduler_name, &scheduler_id); - assert(sc == RTEMS_SUCCESSFUL); - - sc = rtems_task_create( - rtems_build_name('T', 'A', 'S', 'K'), - 1, - RTEMS_MINIMUM_STACK_SIZE, - RTEMS_DEFAULT_MODES, - RTEMS_DEFAULT_ATTRIBUTES, - &task_id - ); - assert(sc == RTEMS_SUCCESSFUL); - - sc = rtems_task_set_scheduler(task_id, scheduler_id); - assert(sc == RTEMS_SUCCESSFUL); - - sc = rtems_task_start(task_id, task, 0); - assert(sc == RTEMS_SUCCESSFUL); + rtems_status_code sc; + rtems_id task_id; + rtems_id scheduler_id; + rtems_name scheduler_name; + + scheduler_name = rtems_build_name( 'W', 'O', 'R', 'K' ); + + sc = rtems_scheduler_ident( scheduler_name, &scheduler_id ); + assert( sc == RTEMS_SUCCESSFUL ); + + sc = rtems_task_create( + rtems_build_name( 'T', 'A', 'S', 'K' ), + 1, + RTEMS_MINIMUM_STACK_SIZE, + RTEMS_DEFAULT_MODES, + RTEMS_DEFAULT_ATTRIBUTES, + &task_id + ); + assert( sc == RTEMS_SUCCESSFUL ); + + sc = rtems_task_set_scheduler( task_id, scheduler_id, 2 ); + assert( sc == RTEMS_SUCCESSFUL ); + + sc = rtems_task_start( task_id, task, 0 ); + assert( sc == RTEMS_SUCCESSFUL ); } .. raw:: latex |