long ssdtableUpdate(DespTag tag, unsigned long hash_code, long despId)
{
if (DEBUG)
printf("[INFO] Insert tag: %lu, hash_code=%lu\n",tag.offset, hash_code);
SSDHashBucket* nowbucket = GetSSDHashBucket(hash_code);
SSDHashBucket* lastbucket = nowbucket;
while (nowbucket != NULL) {
lastbucket = nowbucket;
if (IsSame(nowbucket->hash_key,tag)) {
long oldId = nowbucket->despId;
nowbucket->despId = despId;
return oldId;
}
nowbucket = nowbucket->next_item;
}
// if not exist in table, insert one.
SSDHashBucket* newitem = memPop();
newitem->hash_key = tag;
newitem->despId = despId;
newitem->next_item = NULL;
lastbucket->next_item = newitem;
return -1;
}
long ssdtableDelete(SSDTag *ssd_tag, unsigned long hash_code)
{
if (DEBUG)
printf("[INFO] Delete ssd_tag: %lu, hash_code=%lu\n",ssd_tag->offset, hash_code);
SSDHashBucket *nowbucket = GetSSDHashBucket(hash_code);
long del_id;
SSDHashBucket *delitem;
nowbucket->next_item;
while (nowbucket->next_item != NULL && nowbucket != NULL) {
if (isSamessd(&nowbucket->next_item->hash_key, ssd_tag)) {
del_id = nowbucket->next_item->ssd_id;
break;
}
nowbucket = nowbucket->next_item;
}
//printf("not found2\n");
if (isSamessd(&nowbucket->hash_key, ssd_tag)) {
del_id = nowbucket->ssd_id;
}
//printf("not found3\n");
if (nowbucket->next_item != NULL) {
delitem = nowbucket->next_item;
nowbucket->next_item = nowbucket->next_item->next_item;
free(delitem);
return del_id;
}
else {
delitem = nowbucket->next_item;
nowbucket->next_item = NULL;
free(delitem);
return del_id;
}
return -1;
}
long ssdtableInsert(SSDTag *ssd_tag, unsigned long hash_code, long ssd_id)
{
if (DEBUG)
printf("[INFO] Insert ssd_tag: %lu, hash_code=%lu\n",ssd_tag->offset, hash_code);
SSDHashBucket *nowbucket = GetSSDHashBucket(hash_code);
while (nowbucket->next_item != NULL && nowbucket != NULL) {
if (isSamessd(&nowbucket->hash_key, ssd_tag)) {
return nowbucket->ssd_id;
}
nowbucket = nowbucket->next_item;
}
if (nowbucket != NULL) {
SSDHashBucket *newitem = (SSDHashBucket*)malloc(sizeof(SSDHashBucket));
newitem->hash_key = *ssd_tag;
newitem->ssd_id = ssd_id;
newitem->next_item = NULL;
nowbucket->next_item = newitem;
}
else {
nowbucket->hash_key = *ssd_tag;
nowbucket->ssd_id = ssd_id;
nowbucket->next_item = NULL;
}
return -1;
}
long ssdtableInsert(DespTag tag, unsigned long hash_code, long despId)
{
if (DEBUG)
printf("[INFO] Insert tag: %lu, hash_code=%lu\n",tag.offset, hash_code);
SSDHashBucket *nowbucket = GetSSDHashBucket(hash_code);
while (nowbucket->next_item != NULL) {
nowbucket = nowbucket->next_item;
}
SSDHashBucket* newitem = memPop();
newitem->hash_key = tag;
newitem->despId = despId;
newitem->next_item = NULL;
nowbucket->next_item = newitem;
return 0;
}
long ssdtableLookup(DespTag tag, unsigned long hash_code)
{
if (DEBUG)
printf("[INFO] Lookup tag: %lu\n",tag.offset);
SSDHashBucket *nowbucket = GetSSDHashBucket(hash_code);
while (nowbucket != NULL) {
// printf("nowbucket->buf_id = %u %u %u\n", nowbucket->hash_key.rel.database, nowbucket->hash_key.rel.relation, nowbucket->hash_key.block_num);
if (IsSame(nowbucket->hash_key, tag)) {
// printf("find\n");
return nowbucket->despId;
}
nowbucket = nowbucket->next_item;
}
// printf("no find\n");
return -1;
}
long ssdtableDelete(DespTag tag, unsigned long hash_code)
{
if (DEBUG)
printf("[INFO] Delete tag: %lu, hash_code=%lu\n",tag.offset, hash_code);
SSDHashBucket *nowbucket = GetSSDHashBucket(hash_code);
long del_id;
SSDHashBucket *delitem;
while (nowbucket->next_item != NULL) {
if (IsSame(nowbucket->next_item->hash_key, tag)) {
delitem = nowbucket->next_item;
del_id = delitem->despId;
nowbucket->next_item = delitem->next_item;
memPush(delitem);
return del_id;
}
nowbucket = nowbucket->next_item;
}
return -1;
}