C++ (Cpp) bnode_do_create示例

示例#1

文件： kv.c 项目： skuanr/sheepdog

static int bnode_create(struct kv_bnode *bnode, uint32_t account_vid)
{
	struct sd_inode *inode = xmalloc(sizeof(struct sd_inode));
	uint32_t tmp_vid, idx;
	uint64_t hval, i;
	int ret;

	ret = sd_read_object(vid_to_vdi_oid(account_vid), (char *)inode,
			       sizeof(*inode), 0);
	if (ret != SD_RES_SUCCESS) {
		sd_err("failed to read %" PRIx32 " %s", account_vid,
		       sd_strerror(ret));
		goto out;
	}

	hval = sd_hash(bnode->name, strlen(bnode->name));
	for (i = 0; i < MAX_DATA_OBJS; i++) {
		idx = (hval + i) % MAX_DATA_OBJS;
		tmp_vid = INODE_GET_VID(inode, idx);
		if (tmp_vid)
			continue;
		else
			break;
	}
	if (i == MAX_DATA_OBJS) {
		ret = SD_RES_NO_SPACE;
		goto out;
	}
	ret = bnode_do_create(bnode, inode, idx);
out:
	free(inode);
	return ret;
}

示例#2

文件： kv.c 项目： HiroshiKozuka/sheepdog

static int bnode_create(struct kv_bnode *bnode, uint32_t account_vid)
{
	struct sd_inode *inode = xmalloc(sizeof(struct sd_inode));
	uint32_t tmp_vid, idx;
	uint64_t hval, i;
	int ret;
	bool create = true;

	ret = sd_read_object(vid_to_vdi_oid(account_vid), (char *)inode,
			     sizeof(*inode), 0);
	if (ret != SD_RES_SUCCESS) {
		sd_err("failed to read %" PRIx32 " %s", account_vid,
		       sd_strerror(ret));
		goto out;
	}

	hval = sd_hash(bnode->name, strlen(bnode->name));
	for (i = 0; i < MAX_DATA_OBJS; i++) {
		idx = (hval + i) % MAX_DATA_OBJS;
		tmp_vid = sd_inode_get_vid(inode, idx);
		if (tmp_vid) {
			uint64_t oid = vid_to_data_oid(account_vid, idx);
			char name[SD_MAX_BUCKET_NAME] = { };

			ret = sd_read_object(oid, name, sizeof(name), 0);
			if (ret != SD_RES_SUCCESS)
				goto out;
			if (name[0] == 0) {
				create = false;
				goto create;
			}
		} else
			break;
	}
	if (i == MAX_DATA_OBJS) {
		ret = SD_RES_NO_SPACE;
		goto out;
	}

create:
	ret = bnode_do_create(bnode, inode, idx, create);
out:
	free(inode);
	return ret;
}