StatusType WakeUpTask ( TaskType TaskID )
{
StatusType ercd = E_OK;
TCB *tcb;
TSTAT state;
OS_CHECK((TaskID<cfgOSEK_TASK_NUM),E_OS_ID);
OS_CHECK((TaskID != knl_ctxtsk->tskid),E_OS_ID);
tcb = &knl_tcb_table[TaskID];
BEGIN_CRITICAL_SECTION;
state = (TSTAT)tcb->state;
if ( !knl_task_alive(state) ) {
ercd = E_OS_ID;
} else if ( (state & TS_WAIT) != 0 && tcb->wspec == &knl_wspec_slp ) {
knl_wait_release_ok(tcb);
} else if ( tcb->wupcnt == UINT_MAX ) {
ercd = E_OS_QOVR;
} else {
++tcb->wupcnt;
}
END_CRITICAL_SECTION;
Error_Exit:
return ercd;
}
/*
* Termination of other task
*/
SYSCALL ER tk_ter_tsk_impl( ID tskid )
{
TCB *tcb;
TSTAT state;
ER ercd = E_OK;
CHECK_TSKID(tskid);
CHECK_NONSELF(tskid);
tcb = get_tcb(tskid);
BEGIN_CRITICAL_SECTION;
state = (TSTAT)tcb->state;
if ( !knl_task_alive(state) ) {
ercd = ( state == TS_NONEXIST )? E_NOEXS: E_OBJ;
} else if ( tcb->klocked ) {
/* Normally, it does not become this state.
* When the state is page-in wait in the virtual memory
* system and when trying to terminate any task,
* it becomes this state.
*/
ercd = E_OBJ;
} else {
knl_ter_tsk(tcb);
knl_make_dormant(tcb);
}
END_CRITICAL_SECTION;
return ercd;
}
