> For the complete documentation index, see [llms.txt](https://zenofchain.gitbook.io/sei-zhong-wen-wen-dang-sei-docs-chnby-chainguys/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zenofchain.gitbook.io/sei-zhong-wen-wen-dang-sei-docs-chnby-chainguys/ding-dan-pi-pei-order-match/bai-ming-dan-shang-dian-whitelisted-store.md).

# 白名单商店 (Whitelisted Store)

To ensure that there is no race condition in writing to stores, each order matching goroutine will operate on a whitelisted store where it can only write to whitelisted prefixes. Right now the whitelist only contains the `wasm` store of the contract itself, as well as DEX module's internal states specific to that contract. In other words, if a contract sends out state-mutating messages to other modules (e.g. bank) or other contracts' `execute` endpoint during order matching (i.e. in the response of one of its `sudo` endpoints), its order matching process will fail.

为了确保写入存储没有竞争条件，每个订单匹配Go协程(goroutine)将在白名单存储上运行，它只能写入白名单前缀。目前，白名单仅包含合约本身的`wasm`存储，以及特定于该合约的 DEX 模块的内部状态。换句话说，如果合约在订单匹配期间（即在其`sudo`端点之一的响应中）向其他模块（例如银行）或其他合约的`execute`端点发送状态变化消息，则其订单匹配过程将失败。

Note that it's okay for a contract to send out order placement/cancellation messages to other contracts during order matching, since those messages are handled by the DEX module.

请注意，在订单匹配期间，合约可以向其他合约发送下单/取消信息，因为这些消息由 DEX 模块处理。