ER
clr_flg(ID flgid, FLGPTN clrptn)
{
FLGCB *p_flgcb;
ER ercd;
LOG_CLR_FLG_ENTER(flgid, clrptn);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
if (p_flgcb->p_flginib->flgatr == TA_NOEXS) {
ercd = E_NOEXS;
}
else {
p_flgcb->flgptn &= clrptn;
ercd = E_OK;
}
t_unlock_cpu();
error_exit:
LOG_CLR_FLG_LEAVE(ercd);
return(ercd);
}
ER
ref_flg(ID flgid, T_RFLG *pk_rflg)
{
FLGCB *p_flgcb;
ER ercd;
LOG_REF_FLG_ENTER(flgid, pk_rflg);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
if (p_flgcb->p_flginib->flgatr == TA_NOEXS) {
ercd = E_NOEXS;
}
else {
pk_rflg->wtskid = wait_tskid(&(p_flgcb->wait_queue));
pk_rflg->flgptn = p_flgcb->flgptn;
ercd = E_OK;
}
t_unlock_cpu();
error_exit:
LOG_REF_FLG_LEAVE(ercd, pk_rflg);
return(ercd);
}
ER
twai_flg(ID flgid, FLGPTN waiptn, MODE wfmode, FLGPTN *p_flgptn, TMO tmout)
{
FLGCB *p_flgcb;
WINFO_FLG *p_winfo_flg;
ER ercd;
PCB *my_p_pcb;
TCB *p_runtsk;
LOG_TWAI_FLG_ENTER(flgid, waiptn, wfmode, p_flgptn, tmout);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
CHECK_PAR(waiptn != 0U);
CHECK_PAR(wfmode == TWF_ORW || wfmode == TWF_ANDW);
CHECK_TMOUT(tmout);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
my_p_pcb = get_my_p_pcb();
T_CHECK_DISPATCH(my_p_pcb);
retry:
t_acquire_obj_lock(&GET_OBJLOCK(p_flgcb));
if ((p_flgcb->p_flginib->flgatr & TA_WMUL) == 0U
&& !queue_empty(&(p_flgcb->wait_queue))) {
release_obj_lock(&GET_OBJLOCK(p_flgcb));
ercd = E_ILUSE;
}
else if (check_flg_cond(p_flgcb, waiptn, wfmode, p_flgptn)) {
release_obj_lock(&GET_OBJLOCK(p_flgcb));
ercd = E_OK;
}
else if (tmout == TMO_POL) {
release_obj_lock(&GET_OBJLOCK(p_flgcb));
ercd = E_TMOUT;
}
else {
if ((my_p_pcb = t_acquire_nested_tsk_lock_self(&GET_OBJLOCK(p_flgcb))) == NULL){
goto retry;
}
p_runtsk = my_p_pcb->p_runtsk;
p_winfo_flg = (WINFO_FLG *)(&(p_runtsk->winfo_obj));
p_winfo_flg->waiptn = waiptn;
p_winfo_flg->wfmode = wfmode;
p_runtsk->tstat = (TS_WAITING | TS_WAIT_FLG);
wobj_make_wait_tmout((WOBJCB *) p_flgcb, tmout, p_runtsk);
release_nested_tsk_lock(my_p_pcb);
release_obj_lock(&GET_OBJLOCK(p_flgcb));
dispatch();
ercd = p_runtsk->wercd;
if (ercd == E_OK) {
*p_flgptn = p_winfo_flg->flgptn;
}
}
t_unlock_cpu();
error_exit:
LOG_TWAI_FLG_LEAVE(ercd, *p_flgptn);
return(ercd);
}
ER
ini_flg(ID flgid)
{
FLGCB *p_flgcb;
ER ercd;
bool_t dspreq;
LOG_INI_FLG_ENTER(flgid);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
t_acquire_obj_lock(&GET_OBJLOCK(p_flgcb));
dspreq = init_wait_queue(&(p_flgcb->wait_queue));
p_flgcb->flgptn = p_flgcb->p_flginib->iflgptn;
ercd = E_OK;
release_obj_lock(&GET_OBJLOCK(p_flgcb));
if (dspreq) {
dispatch();
}
t_unlock_cpu();
error_exit:
LOG_INI_FLG_LEAVE(ercd);
return(ercd);
}
SYSCALL ER
pol_flg(ID flgid, FLGPTN waiptn, MODE wfmode, FLGPTN *p_flgptn)
{
FLGCB *flgcb;
ER ercd;
LOG_POL_FLG_ENTER(flgid, waiptn, wfmode, p_flgptn);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
CHECK_PAR(waiptn != 0);
CHECK_PAR((wfmode & ~TWF_ORW) == 0);
flgcb = get_flgcb(flgid);
t_lock_cpu();
if (!(queue_empty(&(flgcb->wait_queue)))) {
ercd = E_ILUSE;
}
else if (eventflag_cond(flgcb, waiptn, wfmode, p_flgptn)) {
ercd = E_OK;
}
else {
ercd = E_TMOUT;
}
t_unlock_cpu();
exit:
LOG_POL_FLG_LEAVE(ercd, *p_flgptn);
return(ercd);
}
/*
* Refer event flag wait queue
*/
SYSCALL INT td_flg_que_impl( ID flgid, ID list[], INT nent )
{
FLGCB *flgcb;
QUEUE *q;
ER ercd = E_OK;
CHECK_FLGID(flgid);
flgcb = get_flgcb(flgid);
BEGIN_DISABLE_INTERRUPT;
if ( flgcb->flgid == 0 ) {
ercd = E_NOEXS;
} else {
INT n = 0;
for ( q = flgcb->wait_queue.next; q != &flgcb->wait_queue; q = q->next ) {
if ( n++ < nent ) {
*list++ = ((TCB*)q)->tskid;
}
}
ercd = n;
}
END_DISABLE_INTERRUPT;
return ercd;
}
SYSCALL ER
iset_flg(ID flgid, FLGPTN setptn)
{
FLGCB *flgcb;
TCB *tcb;
WINFO_FLG *winfo;
ER ercd;
LOG_ISET_FLG_ENTER(flgid, setptn);
CHECK_INTCTX_UNL();
CHECK_FLGID(flgid);
flgcb = get_flgcb(flgid);
i_lock_cpu();
flgcb->flgptn |= setptn;
if (!(queue_empty(&(flgcb->wait_queue)))) {
tcb = (TCB *)(flgcb->wait_queue.next);
winfo = (WINFO_FLG *)(tcb->winfo);
if (eventflag_cond(flgcb, winfo->waiptn,
winfo->wfmode, &(winfo->flgptn))) {
queue_delete(&(tcb->task_queue));
if (wait_complete(tcb)) {
reqflg = TRUE;
}
}
}
ercd = E_OK;
i_unlock_cpu();
exit:
LOG_ISET_FLG_LEAVE(ercd);
return(ercd);
}
ER
pol_flg(ID flgid, FLGPTN waiptn, MODE wfmode, FLGPTN *p_flgptn)
{
FLGCB *p_flgcb;
ER ercd;
LOG_POL_FLG_ENTER(flgid, waiptn, wfmode, p_flgptn);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
CHECK_PAR(waiptn != 0U);
CHECK_PAR(wfmode == TWF_ORW || wfmode == TWF_ANDW);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
if (p_flgcb->p_flginib->flgatr == TA_NOEXS) {
ercd = E_NOEXS;
}
else if ((p_flgcb->p_flginib->flgatr & TA_WMUL) == 0U
&& !queue_empty(&(p_flgcb->wait_queue))) {
ercd = E_ILUSE;
}
else if (check_flg_cond(p_flgcb, waiptn, wfmode, p_flgptn)) {
ercd = E_OK;
}
else {
ercd = E_TMOUT;
}
t_unlock_cpu();
error_exit:
LOG_POL_FLG_LEAVE(ercd, *p_flgptn);
return(ercd);
}
ER
ini_flg(ID flgid)
{
FLGCB *p_flgcb;
bool_t dspreq;
ER ercd;
LOG_INI_FLG_ENTER(flgid);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
if (p_flgcb->p_flginib->flgatr == TA_NOEXS) {
ercd = E_NOEXS;
}
else {
dspreq = init_wait_queue(&(p_flgcb->wait_queue));
p_flgcb->flgptn = p_flgcb->p_flginib->iflgptn;
if (dspreq) {
dispatch();
}
ercd = E_OK;
}
t_unlock_cpu();
error_exit:
LOG_INI_FLG_LEAVE(ercd);
return(ercd);
}
ER
sac_flg(ID flgid, const ACVCT *p_acvct)
{
FLGCB *p_flgcb;
FLGINIB *p_flginib;
ER ercd;
LOG_SAC_FLG_ENTER(flgid, p_acvct);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
CHECK_MACV_READ(p_acvct, ACVCT);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
if (p_flgcb->p_flginib->flgatr == TA_NOEXS) {
ercd = E_NOEXS;
}
else if (VIOLATE_ACPTN(p_flgcb->p_flginib->acvct.acptn3)) {
ercd = E_OACV;
}
else if (FLGID(p_flgcb) > tmax_sflgid) {
p_flginib = (FLGINIB *)(p_flgcb->p_flginib);
p_flginib->acvct = *p_acvct;
ercd = E_OK;
}
else {
ercd = E_OBJ;
}
t_unlock_cpu();
error_exit:
LOG_SAC_FLG_LEAVE(ercd);
return(ercd);
}
ER
twai_flg(ID flgid, FLGPTN waiptn, MODE wfmode, FLGPTN *p_flgptn, TMO tmout)
{
FLGCB *p_flgcb;
WINFO_FLG winfo_flg;
TMEVTB tmevtb;
ER ercd;
LOG_TWAI_FLG_ENTER(flgid, waiptn, wfmode, p_flgptn, tmout);
CHECK_DISPATCH();
CHECK_FLGID(flgid);
CHECK_PAR(waiptn != 0U);
CHECK_PAR(wfmode == TWF_ORW || wfmode == TWF_ANDW);
CHECK_MACV_WRITE(p_flgptn, FLGPTN);
CHECK_TMOUT(tmout);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
if (p_flgcb->p_flginib->flgatr == TA_NOEXS) {
ercd = E_NOEXS;
}
else if (VIOLATE_ACPTN(p_flgcb->p_flginib->acvct.acptn2)) {
ercd = E_OACV;
}
else if ((p_flgcb->p_flginib->flgatr & TA_WMUL) == 0U
&& !queue_empty(&(p_flgcb->wait_queue))) {
ercd = E_ILUSE;
}
else if (check_flg_cond(p_flgcb, waiptn, wfmode, p_flgptn)) {
ercd = E_OK;
}
else if (tmout == TMO_POL) {
ercd = E_TMOUT;
}
else if (p_runtsk->waifbd) {
ercd = E_RLWAI;
}
else {
winfo_flg.waiptn = waiptn;
winfo_flg.wfmode = wfmode;
p_runtsk->tstat = (TS_WAITING | TS_WAIT_FLG);
wobj_make_wait_tmout((WOBJCB *) p_flgcb, (WINFO_WOBJ *) &winfo_flg,
&tmevtb, tmout);
dispatch();
ercd = winfo_flg.winfo.wercd;
if (ercd == E_OK) {
*p_flgptn = winfo_flg.flgptn;
}
}
t_unlock_cpu();
error_exit:
LOG_TWAI_FLG_LEAVE(ercd, *p_flgptn);
return(ercd);
}
/*
* Event flag set
*/
SYSCALL ER tk_set_flg_impl( ID flgid, UINT setptn )
{
FLGCB *flgcb;
TCB *tcb;
QUEUE *queue;
UINT wfmode, waiptn;
ER ercd = E_OK;
CHECK_FLGID(flgid);
flgcb = get_flgcb(flgid);
BEGIN_CRITICAL_SECTION;
if ( flgcb->flgid == 0 ) {
ercd = E_NOEXS;
goto error_exit;
}
/* Set event flag */
flgcb->flgptn |= setptn;
/* Search task which should be released */
queue = flgcb->wait_queue.next;
while ( queue != &flgcb->wait_queue ) {
tcb = (TCB*)queue;
queue = queue->next;
/* Meet condition for release wait? */
waiptn = tcb->winfo.flg.waiptn;
wfmode = tcb->winfo.flg.wfmode;
if ( knl_eventflag_cond(flgcb, waiptn, wfmode) ) {
/* Release wait */
*tcb->winfo.flg.p_flgptn = flgcb->flgptn;
knl_wait_release_ok(tcb);
/* Clear event flag */
if ( (wfmode & TWF_BITCLR) != 0 ) {
if ( (flgcb->flgptn &= ~waiptn) == 0 ) {
break;
}
}
if ( (wfmode & TWF_CLR) != 0 ) {
flgcb->flgptn = 0;
break;
}
}
}
error_exit:
END_CRITICAL_SECTION;
return ercd;
}
ER
set_flg(ID flgid, FLGPTN setptn)
{
FLGCB *p_flgcb;
QUEUE *p_queue;
TCB *p_tcb;
WINFO_FLG *p_winfo_flg;
ER ercd;
bool_t dspreq = false;
PCB *p_pcb;
LOG_SET_FLG_ENTER(flgid, setptn);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
t_acquire_obj_lock(&GET_OBJLOCK(p_flgcb));
p_flgcb->flgptn |= setptn;
p_queue = p_flgcb->wait_queue.p_next;
while (p_queue != &(p_flgcb->wait_queue)) {
p_tcb = (TCB *) p_queue;
p_queue = p_queue->p_next;
/* フラグのセットを非破壊コードにできないため，リトライしない */
p_pcb = acquire_nested_tsk_lock_without_preemption(p_tcb);
p_winfo_flg = (WINFO_FLG *)(&(p_tcb->winfo_obj));
if (check_flg_cond(p_flgcb, p_winfo_flg->waiptn,
p_winfo_flg->wfmode, &(p_winfo_flg->flgptn))) {
queue_delete(&(p_tcb->task_queue));
if (wait_complete(p_tcb)) {
if (dispatch_request(p_pcb)) {
dspreq = true;
}
}
if ((p_flgcb->p_flginib->flgatr & TA_CLR) != 0U) {
release_nested_tsk_lock(p_pcb);
break;
}
}
release_nested_tsk_lock(p_pcb);
}
ercd = E_OK;
release_obj_lock(&GET_OBJLOCK(p_flgcb));
if (dspreq) {
dispatch();
}
t_unlock_cpu();
error_exit:
LOG_SET_FLG_LEAVE(ercd);
return(ercd);
}
ER
set_flg(ID flgid, FLGPTN setptn)
{
FLGCB *p_flgcb;
QUEUE *p_queue;
TCB *p_tcb;
WINFO_FLG *p_winfo_flg;
bool_t dspreq = false;
ER ercd;
LOG_SET_FLG_ENTER(flgid, setptn);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
if (p_flgcb->p_flginib->flgatr == TA_NOEXS) {
ercd = E_NOEXS;
}
else if (VIOLATE_ACPTN(p_flgcb->p_flginib->acvct.acptn1)) {
ercd = E_OACV;
}
else {
p_flgcb->flgptn |= setptn;
p_queue = p_flgcb->wait_queue.p_next;
while (p_queue != &(p_flgcb->wait_queue)) {
p_tcb = (TCB *) p_queue;
p_queue = p_queue->p_next;
p_winfo_flg = (WINFO_FLG *)(p_tcb->p_winfo);
if (check_flg_cond(p_flgcb, p_winfo_flg->waiptn,
p_winfo_flg->wfmode, &(p_winfo_flg->flgptn))) {
queue_delete(&(p_tcb->task_queue));
if (wait_complete(p_tcb)) {
dspreq = true;
}
if ((p_flgcb->p_flginib->flgatr & TA_CLR) != 0U) {
break;
}
}
}
if (dspreq) {
dispatch();
}
ercd = E_OK;
}
t_unlock_cpu();
error_exit:
LOG_SET_FLG_LEAVE(ercd);
return(ercd);
}
/*
* Event flag wait
*/
SYSCALL ER tk_wai_flg_impl( ID flgid, UINT waiptn, UINT wfmode, UINT *p_flgptn, TMO tmout )
{
FLGCB *flgcb;
ER ercd = E_OK;
CHECK_FLGID(flgid);
CHECK_PAR(waiptn != 0);
CHECK_PAR((wfmode & ~(TWF_ORW|TWF_CLR|TWF_BITCLR)) == 0);
CHECK_TMOUT(tmout);
CHECK_DISPATCH();
flgcb = get_flgcb(flgid);
BEGIN_CRITICAL_SECTION;
if ( flgcb->flgid == 0 ) {
ercd = E_NOEXS;
goto error_exit;
}
if ( (flgcb->flgatr & TA_WMUL) == 0 && !isQueEmpty(&flgcb->wait_queue) ) {
/* Disable multiple tasks wait */
ercd = E_OBJ;
goto error_exit;
}
/* Meet condition for release wait? */
if ( knl_eventflag_cond(flgcb, waiptn, wfmode) ) {
*p_flgptn = flgcb->flgptn;
/* Clear event flag */
if ( (wfmode & TWF_BITCLR) != 0 ) {
flgcb->flgptn &= ~waiptn;
}
if ( (wfmode & TWF_CLR) != 0 ) {
flgcb->flgptn = 0;
}
} else {
/* Ready for wait */
knl_ctxtsk->wspec = ( (flgcb->flgatr & TA_TPRI) != 0 )?
&knl_wspec_flg_tpri: &knl_wspec_flg_tfifo;
knl_ctxtsk->wercd = &ercd;
knl_ctxtsk->winfo.flg.waiptn = waiptn;
knl_ctxtsk->winfo.flg.wfmode = wfmode;
knl_ctxtsk->winfo.flg.p_flgptn = p_flgptn;
knl_gcb_make_wait((GCB*)flgcb, tmout);
}
error_exit:
END_CRITICAL_SECTION;
return ercd;
}
ER
iset_flg(ID flgid, FLGPTN setptn)
{
FLGCB *p_flgcb;
QUEUE *p_queue;
TCB *p_tcb;
WINFO_FLG *p_winfo_flg;
ER ercd;
LOG_ISET_FLG_ENTER(flgid, setptn);
CHECK_INTCTX_UNL();
CHECK_FLGID(flgid);
p_flgcb = get_flgcb(flgid);
i_lock_cpu();
if (p_flgcb->p_flginib->flgatr == TA_NOEXS) {
ercd = E_NOEXS;
}
else {
p_flgcb->flgptn |= setptn;
p_queue = p_flgcb->wait_queue.p_next;
while (p_queue != &(p_flgcb->wait_queue)) {
p_tcb = (TCB *) p_queue;
p_queue = p_queue->p_next;
p_winfo_flg = (WINFO_FLG *)(p_tcb->p_winfo);
if (check_flg_cond(p_flgcb, p_winfo_flg->waiptn,
p_winfo_flg->wfmode, &(p_winfo_flg->flgptn))) {
queue_delete(&(p_tcb->task_queue));
if (wait_complete(p_tcb)) {
reqflg = true;
}
if ((p_flgcb->p_flginib->flgatr & TA_CLR) != 0U) {
break;
}
}
}
ercd = E_OK;
}
i_unlock_cpu();
error_exit:
LOG_ISET_FLG_LEAVE(ercd);
return(ercd);
}
SYSCALL ER
twai_flg(ID flgid, FLGPTN waiptn, MODE wfmode, FLGPTN *p_flgptn, TMO tmout)
{
FLGCB *flgcb;
WINFO_FLG winfo;
TMEVTB tmevtb;
ER ercd;
LOG_TWAI_FLG_ENTER(flgid, waiptn, wfmode, p_flgptn, tmout);
CHECK_DISPATCH();
CHECK_FLGID(flgid);
CHECK_PAR(waiptn != 0);
CHECK_PAR((wfmode & ~TWF_ORW) == 0);
CHECK_TMOUT(tmout);
flgcb = get_flgcb(flgid);
t_lock_cpu();
if (!(queue_empty(&(flgcb->wait_queue)))) {
ercd = E_ILUSE;
}
else if (eventflag_cond(flgcb, waiptn, wfmode, p_flgptn)) {
ercd = E_OK;
}
else if (tmout == TMO_POL) {
ercd = E_TMOUT;
}
else {
winfo.waiptn = waiptn;
winfo.wfmode = wfmode;
wobj_make_wait_tmout((WOBJCB *) flgcb, (WINFO_WOBJ *) &winfo,
&tmevtb, tmout);
dispatch();
ercd = winfo.winfo.wercd;
if (ercd == E_OK) {
*p_flgptn = winfo.flgptn;
}
}
t_unlock_cpu();
exit:
LOG_TWAI_FLG_LEAVE(ercd, *p_flgptn);
return(ercd);
}
/*
* Clear event flag
*/
SYSCALL ER tk_clr_flg_impl( ID flgid, UINT clrptn )
{
FLGCB *flgcb;
ER ercd = E_OK;
CHECK_FLGID(flgid);
flgcb = get_flgcb(flgid);
BEGIN_CRITICAL_SECTION;
if ( flgcb->flgid == 0 ) {
ercd = E_NOEXS;
} else {
flgcb->flgptn &= clrptn;
}
END_CRITICAL_SECTION;
return ercd;
}
ER
wai_flg(ID flgid, FLGPTN waiptn, MODE wfmode, FLGPTN *p_flgptn)
{
FLGCB *p_flgcb;
WINFO_FLG winfo_flg;
ER ercd;
LOG_WAI_FLG_ENTER(flgid, waiptn, wfmode, p_flgptn);
CHECK_DISPATCH();
CHECK_FLGID(flgid);
CHECK_PAR(waiptn != 0U);
CHECK_PAR(wfmode == TWF_ORW || wfmode == TWF_ANDW);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
if (p_flgcb->p_flginib->flgatr == TA_NOEXS) {
ercd = E_NOEXS;
}
else if ((p_flgcb->p_flginib->flgatr & TA_WMUL) == 0U
&& !queue_empty(&(p_flgcb->wait_queue))) {
ercd = E_ILUSE;
}
else if (check_flg_cond(p_flgcb, waiptn, wfmode, p_flgptn)) {
ercd = E_OK;
}
else {
winfo_flg.waiptn = waiptn;
winfo_flg.wfmode = wfmode;
p_runtsk->tstat = (TS_WAITING | TS_WAIT_FLG);
wobj_make_wait((WOBJCB *) p_flgcb, (WINFO_WOBJ *) &winfo_flg);
dispatch();
ercd = winfo_flg.winfo.wercd;
if (ercd == E_OK) {
*p_flgptn = winfo_flg.flgptn;
}
}
t_unlock_cpu();
error_exit:
LOG_WAI_FLG_LEAVE(ercd, *p_flgptn);
return(ercd);
}
SYSCALL ER
clr_flg(ID flgid, FLGPTN clrptn)
{
FLGCB *flgcb;
ER ercd;
LOG_CLR_FLG_ENTER(flgid, clrptn);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
flgcb = get_flgcb(flgid);
t_lock_cpu();
flgcb->flgptn &= clrptn;
ercd = E_OK;
t_unlock_cpu();
exit:
LOG_CLR_FLG_LEAVE(ercd);
return(ercd);
}
/*
* Check event flag state
*/
SYSCALL ER tk_ref_flg_impl( ID flgid, T_RFLG *pk_rflg )
{
FLGCB *flgcb;
ER ercd = E_OK;
CHECK_FLGID(flgid);
flgcb = get_flgcb(flgid);
BEGIN_CRITICAL_SECTION;
if ( flgcb->flgid == 0 ) {
ercd = E_NOEXS;
} else {
pk_rflg->exinf = flgcb->exinf;
pk_rflg->wtsk = knl_wait_tskid(&flgcb->wait_queue);
pk_rflg->flgptn = flgcb->flgptn;
}
END_CRITICAL_SECTION;
return ercd;
}
/*
* Refer event flag state
*/
SYSCALL ER td_ref_flg_impl( ID flgid, TD_RFLG *pk_rflg )
{
FLGCB *flgcb;
ER ercd = E_OK;
CHECK_FLGID(flgid);
flgcb = get_flgcb(flgid);
BEGIN_DISABLE_INTERRUPT;
if ( flgcb->flgid == 0 ) {
ercd = E_NOEXS;
} else {
pk_rflg->exinf = flgcb->exinf;
pk_rflg->wtsk = knl_wait_tskid(&flgcb->wait_queue);
pk_rflg->flgptn = flgcb->flgptn;
}
END_DISABLE_INTERRUPT;
return ercd;
}
ER
clr_flg(ID flgid, FLGPTN clrptn)
{
FLGCB *p_flgcb;
ER ercd;
LOG_CLR_FLG_ENTER(flgid, clrptn);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
t_acquire_obj_lock(&GET_OBJLOCK(p_flgcb));
p_flgcb->flgptn &= clrptn;
ercd = E_OK;
release_obj_lock(&GET_OBJLOCK(p_flgcb));
t_unlock_cpu();
error_exit:
LOG_CLR_FLG_LEAVE(ercd);
return(ercd);
}
ER
del_flg(ID flgid)
{
FLGCB *p_flgcb;
FLGINIB *p_flginib;
bool_t dspreq;
ER ercd;
LOG_DEL_FLG_ENTER(flgid);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
if (p_flgcb->p_flginib->flgatr == TA_NOEXS) {
ercd = E_NOEXS;
}
else if (VIOLATE_ACPTN(p_flgcb->p_flginib->acvct.acptn3)) {
ercd = E_OACV;
}
else if (FLGID(p_flgcb) > tmax_sflgid) {
dspreq = init_wait_queue(&(p_flgcb->wait_queue));
p_flginib = (FLGINIB *)(p_flgcb->p_flginib);
p_flginib->flgatr = TA_NOEXS;
queue_insert_prev(&free_flgcb, &(p_flgcb->wait_queue));
if (dspreq) {
dispatch();
}
ercd = E_OK;
}
else {
ercd = E_OBJ;
}
t_unlock_cpu();
error_exit:
LOG_DEL_FLG_LEAVE(ercd);
return(ercd);
}
ER
ref_flg(ID flgid, T_RFLG *pk_rflg)
{
FLGCB *p_flgcb;
ER ercd;
LOG_REF_FLG_ENTER(flgid, pk_rflg);
CHECK_TSKCTX_UNL();
CHECK_FLGID(flgid);
p_flgcb = get_flgcb(flgid);
t_lock_cpu();
t_acquire_obj_lock(&GET_OBJLOCK(p_flgcb));
pk_rflg->wtskid = wait_tskid(&(p_flgcb->wait_queue));
pk_rflg->flgptn = p_flgcb->flgptn;
ercd = E_OK;
release_obj_lock(&GET_OBJLOCK(p_flgcb));
t_unlock_cpu();
error_exit:
LOG_REF_FLG_LEAVE(ercd, pk_rflg);
return(ercd);
}
/*
* Delete event flag
*/
SYSCALL ER tk_del_flg_impl( ID flgid )
{
FLGCB *flgcb;
ER ercd = E_OK;
CHECK_FLGID(flgid);
flgcb = get_flgcb(flgid);
BEGIN_CRITICAL_SECTION;
if ( flgcb->flgid == 0 ) {
ercd = E_NOEXS;
} else {
/* Release wait state of task (E_DLT) */
knl_wait_delete(&flgcb->wait_queue);
/* Return to FreeQue */
QueInsert(&flgcb->wait_queue, &knl_free_flgcb);
flgcb->flgid = 0;
}
END_CRITICAL_SECTION;
return ercd;
}
/*
* Get object name from control block
*/
EXPORT ER knl_eventflag_getname(ID id, UB **name)
{
FLGCB *flgcb;
ER ercd = E_OK;
CHECK_FLGID(id);
BEGIN_DISABLE_INTERRUPT;
flgcb = get_flgcb(id);
if ( flgcb->flgid == 0 ) {
ercd = E_NOEXS;
goto error_exit;
}
if ( (flgcb->flgatr & TA_DSNAME) == 0 ) {
ercd = E_OBJ;
goto error_exit;
}
*name = flgcb->name;
error_exit:
END_DISABLE_INTERRUPT;
return ercd;
}