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typedef struct task_control_block {
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        ...
        QUEUE                   mutex_queue;    /* ¥í¥Ã¥¯€·€Æ€€€ë¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€Î¥­¥å¡Œ */
        ...
} TCB;
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typedef struct mutex_control_block {
        QUEUE           wait_queue;             /* ¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹ÂÔ€Á¥­¥å¡Œ */
        const MTXINIB *p_mtxinib;       /* œéŽü²œ¥Ö¥í¥Ã¥¯€Ø€Î¥Ý¥€¥ó¥¿ */
        TCB                     *p_loctsk;              /* ¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€ò¥í¥Ã¥¯€·€Æ€€€ë¥¿¥¹¥¯ */
        QUEUE           mutex_queue;    /* ¥í¥Ã¥¯€·€Æ€€€ë¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€Î¥­¥å¡Œ */
} MTXCB;
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----------------------------------------
typedef struct mutex_initialization_block {
        ATR                     mtxatr;                 /* ¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹Â°À­ */
        uint_t          ceilpri;                /* ¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€ÎŸåžÂÍ¥ÀèÅÙ¡ÊÆâÉôÉœžœ¡Ë*/
} MTXINIB;
----------------------------------------

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----------------------------------------
#define MTXCB_QUEUE(p_queue) \
                        ((MTXCB *)(((char *) p_queue) - offsetof(MTXCB, mutex_queue)))
----------------------------------------

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----------------------------------------
/* 
 *  ¥¿¥¹¥¯€ÎžœºßÍ¥ÀèÅـη׻»
 */
static uint_t
mutex_calc_priority(TCB *p_tcb)
{
        uint_t  priority;
        QUEUE   *p_queue;
        MTXCB   *p_mtxcb;

        priority = p_tcb->bpriority;
        p_queue = p_tcb->mutex_queue.p_next;
        while (p_queue != &(p_tcb->mutex_queue)) {
                p_mtxcb = MTXCB_QUEUE(p_queue);
                if (MTX_CEILING(p_mtxcb) && p_mtxcb->p_mtxinib->ceilpri < priority) {
                        priority = p_mtxcb->p_mtxinib->ceilpri;
                }
                p_queue = p_queue->p_next;
        }
        return(priority);
}
----------------------------------------

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€ë€³€È€â²ÄÇœ€Ç€¢€ë€¬¡€Â¿€¯€ÎÉôʬ€¬change_priority€È¶ŠÄ̀ǀ¢€ë€¿€á¡€
change_priority€Ë¿·€¿€Ê¥Ñ¥é¥á¡Œ¥¿mtxmode€òÄɲÀ·¡€mtxmode€¬false€Î»þ€Ï
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----------------------------------------
bool_t
change_priority(TCB *p_tcb, uint_t newpri, bool_t mtxmode)
{
        uint_t  oldpri;

        oldpri = p_tcb->priority;
        p_tcb->priority = newpri;

        if (TSTAT_RUNNABLE(p_tcb->tstat)) {
                /*
                 *  ¥¿¥¹¥¯€¬ŒÂ¹Ô€Ç€­€ëŸõÂրΟì¹ç
                 */
                queue_delete(&(p_tcb->task_queue));
                if (queue_empty(&(ready_queue[oldpri]))) {
                        primap_clear(oldpri);
                }
                if (mtxmode) {
                        queue_insert_next(&(ready_queue[newpri]), &(p_tcb->task_queue));
                }
                else {
                        queue_insert_prev(&(ready_queue[newpri]), &(p_tcb->task_queue));
                }
                primap_set(newpri);

                if (p_schedtsk == p_tcb) {
                        if (newpri >= oldpri) {
                                p_schedtsk = search_schedtsk();
                                return(p_schedtsk != p_tcb && dspflg);
                        }
                }
                else {
                        if (mtxmode ? newpri <= p_schedtsk->priority
                                                : newpri < p_schedtsk->priority) {
                                p_schedtsk = p_tcb;
                                return(dspflg);
                        }
                }
        }
        else {
                if (TSTAT_WAIT_WOBJCB(p_tcb->tstat)) {
                        /*
                         *  ¥¿¥¹¥¯€¬¡€Æ±Žü¡ŠÄÌ¿®¥ª¥Ö¥ž¥§¥¯¥È€ÎŽÉÍý¥Ö¥í¥Ã¥¯€Î¶ŠÄÌÉô
                         *  ʬ¡ÊWOBJCB¡Ë€ÎÂÔ€Á¥­¥å¡Œ€Ë€Ä€Ê€¬€ì€Æ€€€ëŸì¹ç
                         */
                        wobj_change_priority(((WINFO_WOBJ *)(p_tcb->p_winfo))->p_wobjcb,
                                                                                                                                        p_tcb);
                }
        }
        return(false);
}
----------------------------------------

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----------------------------------------
/*
 *  Í×ÁÇÍ¥ÀèÅÙ€¬Ÿå€¬€ë¡Ê€Þ€¿€ÏÁý€š€ë¡ËŸì¹ç€ÎžœºßÍ¥ÀèÅÙÊѹ¹œèÍý
 */
Inline bool_t
mutex_raise_priority(TCB *p_tcb, uint_t newpri)
{
        if (newpri < p_tcb->priority) {
                return(change_priority(p_tcb, newpri, true));
        }
        return(false);
}
----------------------------------------

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----------------------------------------
/*
 *  Í×ÁÇÍ¥ÀèÅÙ€¬²Œ€¬€ë¡Ê€Þ€¿€Ïžº€ë¡ËŸì¹ç€ÎžœºßÍ¥ÀèÅÙÊѹ¹œèÍý
 */
Inline bool_t
mutex_drop_priority(TCB *p_tcb, uint_t oldpri)
{
        uint_t  newpri;

        if (oldpri == p_tcb->priority) {
                newpri = mutex_calc_priority(p_tcb);
                if (newpri != p_tcb->priority) {
                        return(change_priority(p_tcb, newpri, true));
                }
        }
        return(false);
}
----------------------------------------

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----------------------------------------
        mutex_raise_priority(p_loctsk, p_mtxcb->p_mtxinib->ceilpri);
----------------------------------------

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make_non_wait€òžÆ€ÓœÐ€¹·Á€ÇŒÂÁõ€¹€ë¡¥¶ñÂÎŪ€Ë€Ï¡€ÂÔ€Á²òœü€µ€ì€Æ¥ß¥å¡Œ¥Æ¥Ã
¥¯¥¹€ò¥í¥Ã¥¯€·€¿¥¿¥¹¥¯€òp_tcb¡€¥í¥Ã¥¯€·€¿¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€òp_mtxcb€È€¹€ë
€È¡€Œ¡€ÎœèÍý€ò¹Ô€Š¡¥

----------------------------------------
                if (MTX_CEILING(p_mtxcb)) {
                        if (p_mtxcb->p_mtxinib->ceilpri < p_tcb->priority) {
                                p_tcb->priority = p_mtxcb->p_mtxinib->ceilpri;
                        }
                }
                make_non_wait(p_tcb);
----------------------------------------

Ÿåµ­€Î¥³¡Œ¥É€Ï¡€¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€Î¥í¥Ã¥¯²òœüœèÍý€ò¹Ô€Šmutex_release€ÎÃæ€Ë
ŽÞ€á€ë¡¥mutex_release€ÎŒÂÁõ€ÏŒ¡€ÎÄ̀ꡥ

----------------------------------------
static bool_t
mutex_release(MTXCB *p_mtxcb)
{
        TCB             *p_tcb;

        if (queue_empty(&(p_mtxcb->wait_queue))) {
                p_mtxcb->p_loctsk = NULL;
                return(false);
        }
        else {
                /*
                 *  ¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹ÂÔ€Á¥­¥å¡Œ€ÎÀèƬ¥¿¥¹¥¯¡Êp_tcb¡Ë€Ë¡€¥ß¥å¡Œ¥Æ¥Ã
                 *  ¥¯¥¹€ò¥í¥Ã¥¯€µ€»€ë¡¥
                 */
                p_tcb = (TCB *) queue_delete_next(&(p_mtxcb->wait_queue));
                wait_dequeue_tmevtb(p_tcb);
                p_tcb->p_winfo->wercd = E_OK;

                p_mtxcb->p_loctsk = p_tcb;
                queue_insert_prev(&(p_tcb->mutex_queue), &(p_mtxcb->mutex_queue));
                if (MTX_CEILING(p_mtxcb)) {
                        if (p_mtxcb->p_mtxinib->ceilpri < p_tcb->priority) {
                                p_tcb->priority = p_mtxcb->p_mtxinib->ceilpri;
                        }
                }
                return(make_non_wait(p_tcb));
        }
}
----------------------------------------

€³€ÎŽØ¿ô€ÎžåÈŸ€Ï¡€Œ¡€Î€è€Š€ËŒÂÁõ€¹€ë€³€È€â²ÄÇœ€Ë»×€š€ë¡¥

----------------------------------------
        else {
                        bool_t  dspreq = false;

                        p_tcb = (TCB *) queue_delete_next(&(p_mtxcb->wait_queue));
                        if (wait_complete(p_tcb)) {
                                dspreq = true;
                        }
                        if (mutex_acquire(p_tcb, p_mtxcb)) {
                                dspreq = true;
                        }
                        return(dspreq);
        }
----------------------------------------

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€ë€¿€á€Ë€Ï¡€mutex_acquire€ËÂЀ·€Æ¥Ñ¥é¥á¡Œ¥¿mtxmode€òÄɲÀ¹€ë€Ê€É€Îœ€Àµ
€¬É¬Í׀ǀ¢€ë¡¥

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mutex_acquire€«€éžÆ€ó€Àmutex_raise_priority€Ç¥ì¥Ç¥£¥­¥å¡Œ€«€é€Îºïœü€ÈÁÞ
Æþ€ò¹Ô€ŠŸì¹ç€¬€¢€ê¡€žúΚ€¬°­€€¡¥

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¥¿¥¹¥¯€¬¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€ò¥í¥Ã¥¯²òœü€¹€ëœèÍý€Ï¡€unl_mtx€Ë²Ã€š€Æ¡€ext_tsk¡€
ter_tsk¡€ini_mtx€Ë€¢€ë¡¥€³€ÎŸì¹ç€Ë€Ï¡€¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€ò¥í¥Ã¥¯²òœü€·€¿¥¿
¥¹¥¯€òp_loctsk¡€¥í¥Ã¥¯²òœü€·€¿¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€òp_mtxcb€È€¹€ë€È¡€Œ¡€ÎœèÍý
€ò¹Ô€š€Ð€è€€¡¥
                                                                   
----------------------------------------
        mutex_drop_priority(p_loctsk, p_mtxcb->p_mtxinib->ceilpri);
----------------------------------------

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¥¯€òÄɲÀ¹€ëɬÍ×€¬€¢€ë¡¥

----------------------------------------
ÂПݥ¿¥¹¥¯€¬Í¥ÀèÅÙŸåžÂ¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€ò¥í¥Ã¥¯€·€Æ€€€ë€«¥í¥Ã¥¯€òÂԀÀƀ€
€ëŸì¹ç¡€tskpri€Ï¡€€œ€ì€é€Î¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€ÎŸåžÂÍ¥ÀèÅÙ€ÈƱ€ž€«€œ€ì€è€êÄã
€¯€Ê€±€ì€Ð€Ê€é€Ê€€¡¥
----------------------------------------

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----------------------------------------
        else if ((!queue_empty(&(p_tcb->mutex_queue))
                                                                                || TSTAT_WAIT_MTX(p_tcb->tstat))
                                                && !mutex_check_ceilpri(p_tcb, newbpri)) {
                ercd = E_ILUSE;
        }
----------------------------------------

mutex_check_ceilpri€ÎŒÂÁõ€ÏŒ¡€ÎÄ̀ꡥ€³€ÎŽØ¿ô€Ï¡€¥š¥é¡Œ€òž¡œÐ€·€¿Ÿì¹ç
€Ëfalse€ò¡€€œ€Š€Ç€Ê€€Ÿì¹ç€Ëtrue€òÊÖ€¹¡¥

----------------------------------------
bool_t
mutex_check_ceilpri(TCB *p_tcb, uint_t bpriority)
{
        QUEUE   *p_queue;
        MTXCB   *p_mtxcb;

        /*
         *  ¥¿¥¹¥¯€¬¥í¥Ã¥¯€·€Æ€€€ëÍ¥ÀèÅÙŸåžÂ¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€ÎÃæ€Ç¡€ŸåžÂÍ¥Àè
         *  ÅÙ€¬bpriority€è€ê€âÄ　€â€Î€¬€¢€ì€Ð¡€false€òÊÖ€¹¡¥
         */
        p_queue = p_tcb->mutex_queue.p_next;
        while (p_queue != &(p_tcb->mutex_queue)) {
                p_mtxcb = MTXCB_QUEUE(p_queue);
                if (MTX_CEILING(p_mtxcb) && bpriority < p_mtxcb->p_mtxinib->ceilpri) {
                        return(false);
                }
                p_queue = p_queue->p_next;
        }

        /*
         *  ¥¿¥¹¥¯€¬Í¥ÀèÅÙŸåžÂ¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€Î¥í¥Ã¥¯€òÂԀÀƀ€€ëŸì¹ç€Ë¡€€œ
         *  €ÎŸåžÂÍ¥ÀèÅÙ€¬bpriority€è€ê€âÄ〯€±€ì€Ð¡€false€òÊÖ€¹¡¥
         */
        if (TSTAT_WAIT_MTX(p_tcb->tstat)) {
                p_mtxcb = ((WINFO_MTX *)(p_tcb->p_winfo))->p_mtxcb;
                if (MTX_CEILING(p_mtxcb) && bpriority < p_mtxcb->p_mtxinib->ceilpri) {
                        return(false);
                }
        }

        /*
         *  €€€º€ì€ÎŸò·ï€Ë€âÅö€Æ€Ï€Þ€é€Ê€±€ì€Ðtrue€òÊÖ€¹¡¥
         */
        return(true);
}
----------------------------------------

Œ¡€Ë¡€¥Ù¡Œ¥¹Í¥ÀèÅÙ€òÊѹ¹€·€¿žå¡€Œ¡€ÎœèÍý€ò¹Ô€ŠÉ¬Í×€¬€¢€ë¡¥

----------------------------------------
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----------------------------------------

€³€ì€òŒÂžœ€¹€ë€¿€á€Ë€Ï¡€Í¥ÀèÅÙŸåžÂ¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€ò¥í¥Ã¥¯€·€Æ€€€Ê€€Ÿì¹ç
€Ë€Î€ßchange_priority€òžÆ€Ö€è€Š€Ëœ€Àµ€¹€ì€Ð€è€€¡Êchange_priority€Ï¡€
mtxmode€òfalse€Ë€·€ÆžÆ€Ö¡Ë¡¥¶ñÂÎŪ€Ë€Ï¡€chg_pri€ÎŒçÍ×Éôʬ€ÏŒ¡€Î€è€Š€Ë€Ê
€ë¡¥

----------------------------------------
                p_tcb->bpriority = newbpri;
                if (queue_empty(&(p_tcb->mutex_queue))
                                                                || !mutex_scan_ceilmtx(p_tcb)) {
                        if (change_priority(p_tcb, newbpri, false)) {
                                dispatch();
                        }
                }
                ercd = E_OK;
----------------------------------------

€³€³€Ç¡€mutex_scan_ceilmtx€Ï¡€¥¿¥¹¥¯€¬Í¥ÀèÅÙŸåžÂ¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€ò¥í¥Ã¥¯
€·€Æ€€€ëŸì¹ç€Ëtrue€òÊÖ€¹ŽØ¿ô€Ç¡€Œ¡€Î€è€Š€ËŒÂÁõ€µ€ì€ë¡¥

----------------------------------------
bool_t
mutex_scan_ceilmtx(TCB *p_tcb)
{
        QUEUE   *p_queue;
        MTXCB   *p_mtxcb;

        p_queue = p_tcb->mutex_queue.p_next;
        while (p_queue != &(p_tcb->mutex_queue)) {
                p_mtxcb = MTXCB_QUEUE(p_queue);
                if (MTX_CEILING(p_mtxcb)) {
                        return(true);
                }
                p_queue = p_queue->p_next;
        }
        return(false);
}
----------------------------------------

¡ürot_rdq€Îœ€Àµ

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rot_rdqÃæ€Î

----------------------------------------
        pri = (tskpri == TPRI_SELF) ? p_runtsk->priority : INT_PRIORITY(tskpri);
----------------------------------------

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----------------------------------------
        pri = (tskpri == TPRI_SELF) ? p_runtsk->bpriority : INT_PRIORITY(tskpri);
----------------------------------------

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Æþ€Ë€è€ê¡€¥Ù¡Œ¥¹Í¥ÀèÅÙ€òÉœ€¹¥Õ¥£¡Œ¥ë¥É€¬¿·À߀µ€ì€¿€¿€á¡€€œ€ÎÉôʬ€Î¥³¡Œ
¥É€òœ€Àµ€¹€ëɬÍ×€¬€¢€ë¡¥¶ñÂÎŪ€Ë€Ï¡€ref_tskÃæ€Î

----------------------------------------
                pk_rtsk->tskbpri = EXT_TSKPRI(p_tcb->priority);
----------------------------------------

€Î¹Ô€ò¡€Œ¡€Î€è€Š€Ëœ€Àµ€¹€ë¡¥

----------------------------------------
                pk_rtsk->tskbpri = EXT_TSKPRI(p_tcb->bpriority);
----------------------------------------

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¥É€ò¥ê¥ó¥¯€·€Ê€€¹©É×€ò¹Ô€Š¡¥

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ŽØ¿ô€ÏŒ¡€ÎÄ̀ꡥ

        mutex_check_ceilpri¡Êchg_pri€è€ê¡Ë
        mutex_scan_ceilmtx¡Êchg_pri€è€ê¡Ë
        mutex_release_all¡Êext_tsk¡€ter_tsk€è€ê¡Ë

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€Ï€µ€à€³€È€Ë€¹€ë¡¥Î〚€Ð¡Ömutex_release_all(p_runtsk)¡×€ÎÂå€ï€ê€Ë¡€

        (*mtxhook_release_all)(p_runtsk);

€Èµ­œÒ€¹€ë¡¥mtxhook_release_all€Ë€Ï¡€¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹¥â¥ž¥å¡Œ¥ë€¬¥ê¥ó¥¯€µ
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€Ê€€Ÿì¹ç€Ë€Ï¡€mtxhook_release_all€ò»²ŸÈ€·€Æ€Ï€Ê€é€Ê€€€â€Î€È€¹€ë¡Ê0€¬Æþ
€ë€³€È€Ï²ŸÄꀷ€Ê€€¡Ë¡¥

Î〚€Ð¡€ext_tsk€«€émutex_release_all€òžÆ€Ö²Õœê€ÏŒ¡€Î€è€Š€Ë€Ê€ë¡¥

----------------------------------------
        if (!queue_empty(&(p_runtsk->mutex_queue))) {
                (void) (*mtxhook_release_all)(p_runtsk);
        }
----------------------------------------

TCBÃæ€Îmutex_queue€¬¶õ€Ç€Ê€¯€Ê€ë€Î€Ï¡€¥¿¥¹¥¯€¬¥ß¥å¡Œ¥Æ¥Ã¥¯¥¹€ò¥í¥Ã¥¯€·
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