C++ HASH_DEL函数代码示例

void FreePunc(FcitxPuncState* puncState)
{
    puncState->curPunc = NULL;
    FcitxPunc* cur;
    while (puncState->puncSet) {
        cur = puncState->puncSet;
        HASH_DEL(puncState->puncSet, cur);
        free(cur->langCode);
        free(cur->curPunc);
        free(cur);
    }
}

void delete_file_descriptor_table(int pid) {
	struct file_descriptor_table * table;

	table = get_file_descriptor_table(pid);

	if (table) {
		HASH_DEL(file_descriptor_tables, table);

		free(table->entries);
		free(table);
	}
}

bool consolidate_gsub_single(caryll_font *font, table_otl *table, otl_subtable *_subtable,
                             sds lookupName) {
	subtable_gsub_single *subtable = &(_subtable->gsub_single);
	consolidate_coverage(font, subtable->from, lookupName);
	consolidate_coverage(font, subtable->to, lookupName);
	uint16_t len =
	    (subtable->from->numGlyphs < subtable->to->numGlyphs ? subtable->from->numGlyphs
	                                                         : subtable->from->numGlyphs);
	gsub_single_map_hash *h = NULL;
	for (uint16_t k = 0; k < len; k++) {
		if (subtable->from->glyphs[k].name && subtable->to->glyphs[k].name) {
			gsub_single_map_hash *s;
			int fromid = subtable->from->glyphs[k].gid;
			HASH_FIND_INT(h, &fromid, s);
			if (s) {
				fprintf(stderr, "[Consolidate] Double-mapping a glyph in a "
				                "single substitution /%s.\n",
				        subtable->from->glyphs[k].name);
			} else {
				NEW(s);
				s->fromid = subtable->from->glyphs[k].gid;
				s->toid = subtable->to->glyphs[k].gid;
				s->fromname = subtable->from->glyphs[k].name;
				s->toname = subtable->to->glyphs[k].name;
				HASH_ADD_INT(h, fromid, s);
			}
		}
	}
	HASH_SORT(h, by_from_id);
	if (HASH_COUNT(h) != subtable->from->numGlyphs || HASH_COUNT(h) != subtable->to->numGlyphs) {
		fprintf(stderr, "[Consolidate] In single subsitution lookup %s, some "
		                "mappings are ignored.\n",
		        lookupName);
	}
	subtable->from->numGlyphs = HASH_COUNT(h);
	subtable->to->numGlyphs = HASH_COUNT(h);
	FREE(subtable->from->glyphs);
	FREE(subtable->to->glyphs);
	NEW_N(subtable->from->glyphs, subtable->from->numGlyphs);
	NEW_N(subtable->to->glyphs, subtable->to->numGlyphs);
	{
		gsub_single_map_hash *s, *tmp;
		uint16_t j = 0;
		HASH_ITER(hh, h, s, tmp) {
			subtable->from->glyphs[j].gid = s->fromid;
			subtable->from->glyphs[j].name = s->fromname;
			subtable->to->glyphs[j].gid = s->toid;
			subtable->to->glyphs[j].name = s->toname;
			j++;
			HASH_DEL(h, s);
			free(s);
		}
	}

/* when an object is deleted */
void cache_destroy(struct giga_directory *dir)
{
    assert(dir->refcount > 1);

    /* once to release from the caller */
    __sync_fetch_and_sub(&dir->refcount, 1);

    HASH_DEL(dircache, dir);

    if (__sync_sub_and_fetch(&dir->refcount, 1) == 0)
        free(dir);
}

void augroup_remove(char *key)
{
  log_msg("HOOK", "GROUP REMOVE");
  Augroup *find;
  HASH_FIND_STR(aug_tbl, key, find);
  if (!find)
    return;

  HASH_DEL(aug_tbl, find);
  free(find->key);
  free(find);
}

void UnloadSingleImage(FcitxSkin* sc, const char* name)
{
    SkinImage *image;
    HASH_FIND_STR(sc->imageTable, name, image);
    if (image != NULL) {
        SkinImage* curimage = image;
        HASH_DEL(sc->imageTable, image);
        free(curimage->name);
        cairo_surface_destroy(curimage->image);
        free(curimage);
    }
}

void
delete_all ()
{
  User *current_user;

  while (users)
    {
      current_user = users;	/* grab pointer to first item */
      HASH_DEL (users, current_user);	/* delete it (users advances to next) */
      free (current_user);	/* free it */
    }
}

void rel_delete(rel_hash *r)
{
    printf("\n<-- delete a rel node -->\n");
	if(r)
	{
        pthread_mutex_lock(&rq->node[r->loc].mutex);
		rq->node[r->loc].isDelete = 1;
        pthread_mutex_unlock(&rq->node[r->loc].mutex);
		HASH_DEL(rhs, r);
        free(r);
	}
}

void delete_proc_hash(mem_proc_t *mem_proc)
{
		//HASH_CLEAR(hh, mem_proc);
		
		mem_proc_t *tmp_mem, *cur_mem;
		HASH_ITER(hh, mem_proc, cur_mem, tmp_mem) {
				if(mem_proc != cur_mem) 
						HASH_DEL(mem_proc, cur_mem); 
				if(cur_mem) free(cur_mem);  
		}
		//if(mem_proc) free(mem_proc);
}

/* Delete specify queue by queue name from hash table */
void hash_del_queue(const char* qname)
{
    mq_queue_list_t* tmp_queue = NULL;

    HASH_FIND_STR(g_mq_qlist, qname, tmp_queue);
    if (tmp_queue != NULL)
    {
        log_debug("Del queue [%s]\n", tmp_queue->qname);
        HASH_DEL(g_mq_qlist, tmp_queue); /* user: pointer to deletee */
        free(tmp_queue);                     /* optional; it��s up to you! */
    }
}

void UnloadImage(FcitxSkin* skin)
{
    SkinImage *images = skin->imageTable;
    while (images) {
        SkinImage* curimage = images;
        HASH_DEL(images, curimage);
        free(curimage->name);
        cairo_surface_destroy(curimage->image);
        free(curimage);
    }
    skin->imageTable = NULL;
}

dessert_per_result_t send_tc(void *data, struct timeval *scheduled, struct timeval *interval) {
	pthread_rwlock_wrlock(&pp_rwlock);
	if (HASH_COUNT(dir_neighbors_head) == 0) {
		return 0;
	}

	dessert_msg_t *tc;
	dessert_msg_new(&tc);
	tc->ttl = TTL_MAX;
	tc->u8 = ++tc_seq_nr;

	// delete old entries from NH list
	node_neighbors_t *dir_neigh = dir_neighbors_head;
	while (dir_neigh) {
		if (dir_neigh->entry_age-- == 0) {
			node_neighbors_t* el_to_delete = dir_neigh;
			HASH_DEL(dir_neighbors_head, el_to_delete);
			free(el_to_delete);
		}
		dir_neigh = dir_neigh->hh.next;
	}

	// add TC extension
	dessert_ext_t *ext;
	uint8_t ext_size = 1 + ((sizeof(node_neighbors_t)- sizeof(dir_neighbors_head->hh)) * HASH_COUNT(dir_neighbors_head));
	dessert_msg_addext(tc, &ext, LSR_EXT_TC, ext_size);
	void* tc_ext = ext->data;
	memcpy(tc_ext, &(ext_size), 1);
	tc_ext++;

	// copy NH list into extension
	dir_neigh = dir_neighbors_head;
	while (dir_neigh) {
		memcpy(tc_ext, dir_neigh->addr, ETH_ALEN);
		tc_ext += ETH_ALEN;
		memcpy(tc_ext, &(dir_neigh->entry_age), 1);
		tc_ext++;
		memcpy(tc_ext, &(dir_neigh->weight), 1);
		tc_ext++;
		dir_neigh = dir_neigh->hh.next;
	}

	// add l2.5 header
	dessert_msg_addext(tc, &ext, DESSERT_EXT_ETH, ETHER_HDR_LEN);
	struct ether_header* l25h = (struct ether_header*) ext->data;
	memcpy(l25h->ether_shost, dessert_l25_defsrc, ETH_ALEN);
	memcpy(l25h->ether_dhost, ether_broadcast, ETH_ALEN);

	dessert_meshsend_fast(tc, NULL);
	dessert_msg_destroy(tc);
	pthread_rwlock_unlock(&pp_rwlock);
	return 0;
}

PRIVATE void
__AI_correlation_table_cleanup ()
{
	AI_alert_correlation *current;

	while ( correlation_table )
	{
		current = correlation_table;
		HASH_DEL ( correlation_table, current );
		free ( current );
	}
}		/* -----  end of function __AI_correlation_table_cleanup  ----- */

static void springfield_iter_i(springfield_t *r, springfield_iter_cb cb,
        springfield_readonly_iter_cb rocb, void *passthrough) {
    /* Copy into temporary buffer */
    if (cb) {
        assert(!rocb);
    } else {
        assert(rocb);
    }
    int i;
    for (i = 0; i < r->num_buckets; i++) {
        uint64_t off = r->offsets[i];
        springfield_key_t *key = NULL, *tmp = NULL;
        springfield_key_t *keys = NULL;
        pthread_rwlock_rdlock(&r->main_lock);
        while (off != NO_BACKTRACE) {
            springfield_header_v1 *h = (springfield_header_v1 *)(r->map + off);
            int klen = h->klen - 1;
            char *keyptr = (char *)(r->map + off + HEADER_SIZE);
            HASH_FIND(hh, keys, keyptr, klen, key);
            uint64_t last = h->last;
            if (!key) {
                /* not found */
                key = calloc(1, sizeof(springfield_key_t));
                key->key = strdup(keyptr);
                int do_callback = h->vlen > 0;
                if (do_callback) {
                    if (cb) {
                        pthread_rwlock_unlock(&r->main_lock);
                        cb(r, key->key, passthrough);
                        pthread_rwlock_rdlock(&r->main_lock);
                    } else {
                        pthread_rwlock_unlock(&r->main_lock);
                        rocb(r, key->key,
                            r->map + off + HEADER_SIZE + h->klen,
                            h->vlen, passthrough);
                        pthread_rwlock_rdlock(&r->main_lock);
                    }
                }
                /* set in hash */
                HASH_ADD_KEYPTR(hh, keys, key->key, klen, key);
            }

            off = last;
        }
        pthread_rwlock_unlock(&r->main_lock);
        /* cleanup keys XXX */
        HASH_ITER(hh, keys, key, tmp) {
            HASH_DEL(keys, key);
            free(key->key);
            free(key);
        }
    }

/**
 * Trim a clustering by rejecting small clusters. The provided clustering
 * structure is updated by assigning reports of rejected clusters to the
 * cluster label 0.
 * @param c Clustering structure
 */
void cluster_trim(cluster_t *c)
{
    assert(c);
    count_t *counts = NULL, *entry;
    unsigned int i, j;
    int rej;

    config_lookup_int(&cfg, "cluster.reject_num", &rej);

    for (i = 0; i < c->len; i++) {
        /* Look for cluster in hash table */
        HASH_FIND_INT(counts, &(c->cluster[i]), entry);
        if (!entry) {
            entry = malloc(sizeof(count_t));
            if (!entry) {
                error("Could not allocate cluster bin");
                return;
            }

            /* Create new entry */
            entry->label = c->cluster[i];
            entry->count = 0;

            /* Add entry */
            HASH_ADD_INT(counts, label, entry);
        }
        entry->count++;
    }

    /* Update cluster assignments */
    for (i = 0; i < c->len; i++) {
        /* Look for cluster in hash table */
        HASH_FIND_INT(counts, &(c->cluster[i]), entry);
        if (entry->count >= rej)
            c->cluster[i] = entry->label;
        else
            c->cluster[i] = 0;
    }

    /* Delete hash table */
    for (j = 0; counts;) {
        /* Count rejected clusters */
        entry = counts;
        if (entry->count < rej)
            j++;
        HASH_DEL(counts, entry);
        free(entry);
    }

    /* Correct cluster number */
    c->num -= j;
}