// CODE_SECTION(OSTaskCreateExt,".UserProgramCode")
INT8U OSTaskCreateExt( void ( *task )( void *p_arg ),
void *p_arg,
OS_STK *ptos,
INT8U prio,
INT16U id,
OS_STK *pbos,
INT32U stk_size,
void *pext,
INT16U opt )
{
OS_STK *psp;
INT8U err;
#if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
OS_CPU_SR cpu_sr = 0;
#endif
#if OS_ARG_CHK_EN > 0
if ( prio > OS_LOWEST_PRIO ) /* Make sure priority is within allowable range */
{
return ( OS_ERR_PRIO_INVALID );
}
#endif
OS_ENTER_CRITICAL();
if ( OSIntNesting > 0 ) /* Make sure we don't create the task from within an ISR */
{
OS_EXIT_CRITICAL();
return ( OS_ERR_TASK_CREATE_ISR );
}
if ( OSTCBPrioTbl[prio] == ( OS_TCB * )0 ) /* Make sure task doesn't already exist at this priority */
{
OSTCBPrioTbl[prio] = OS_TCB_RESERVED;/* Reserve the priority to prevent others from doing ... */
/* ... the same thing until task is created. */
OS_EXIT_CRITICAL();
#if (OS_TASK_STAT_STK_CHK_EN > 0)
OS_TaskStkClr( pbos, stk_size, opt ); /* Clear the task stack (if needed) */
#endif
psp = OSTaskStkInit( task, p_arg, ptos, opt ); /* Initialize the task's stack */
err = OS_TCBInit( prio, psp, pbos, id, stk_size, pext, opt );
if ( err == OS_ERR_NONE )
{
if ( OSRunning == OS_TRUE ) /* Find HPT if multitasking has started */
{
OS_Sched();
}
}
else
{
OS_ENTER_CRITICAL();
OSTCBPrioTbl[prio] = ( OS_TCB * )0; /* Make this priority avail. to others */
OS_EXIT_CRITICAL();
}
return ( err );
}
OS_EXIT_CRITICAL();
return ( OS_ERR_PRIO_EXIST );
}
INT8U OSTaskCreateExt (void (*task)(void *pd),
void *pdata,
OS_STK *ptos,
INT8U prio,
INT16U id,
OS_STK *pbos,
INT32U stk_size,
void *pext,
INT16U opt)
{
#if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
OS_CPU_SR cpu_sr;
#endif
OS_STK *psp;
INT8U err;
#if OS_ARG_CHK_EN > 0
if (prio > OS_LOWEST_PRIO) { /* Make sure priority is within allowable range */
return (OS_PRIO_INVALID);
}
#endif
OS_ENTER_CRITICAL();
if (OSTCBPrioTbl[prio] == (OS_TCB *)0) { /* Make sure task doesn't already exist at this priority */
OSTCBPrioTbl[prio] = (OS_TCB *)1; /* Reserve the priority to prevent others from doing ... */
/* ... the same thing until task is created. */
OS_EXIT_CRITICAL();
OS_TaskStkClr(pbos, stk_size, opt); /* Clear the task stack (if needed) */
psp = (OS_STK *)OSTaskStkInit(task, pdata, ptos, opt); /* Initialize the task's stack */
err = OS_TCBInit(prio, psp, pbos, id, stk_size, pext, opt);
if (err == OS_NO_ERR) {
OS_ENTER_CRITICAL();
OSTaskCtr++; /* Increment the #tasks counter */
OS_EXIT_CRITICAL();
if (OSRunning == TRUE) { /* Find HPT if multitasking has started */
OS_Sched();
}
} else {
OS_ENTER_CRITICAL();
OSTCBPrioTbl[prio] = (OS_TCB *)0; /* Make this priority avail. to others */
OS_EXIT_CRITICAL();
}
return (err);
}
OS_EXIT_CRITICAL();
return (OS_PRIO_EXIST);
}
