InternetQueryDataAvailable返回ERROR_IO_PENDING后，WinInet请求失败并显示ERROR_EA_FILE_CORRUPT

Question

我使用异步WinInet请求从服务器读取HTTPS数据。

我的情景用几句话说：

1. 使用InternetUrlOpen创建请求（返回null）
2. 等等 INTERNET_STATUS_HANDLE_CREATED通知，存储句柄
3. 等待INTERNET_STATUS_REQUEST_COMPLETE
4. 使用存储的句柄
调用InternetQueryDataAvailable以了解要读取的数据量
5. 使用存储的句柄通过InternetReadFile读取数据，然后转到上一步
6. 如果InternetQueryDataAvailable返回 ERROR_IO_PENDING，然后等待下一个INTERNET_STATUS_REQUEST_COMPLETE

但在InternetQueryDataAvailable返回ERROR_IO_PENDING后，我收到INTERNET_STATUS_REQUEST_COMPLETE dwError=276，即ERROR_EA_FILE_CORRUPT。之后我没有收到任何关于请求的通知，所以看起来请求确实失败了。

这意味着什么？

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以下是一些日志：

...
CRequestImpl::InternetStatusCallback: Handle 0x00CC0010 created
CRequestImpl::InternetStatusCallback: Status: Detecting Proxy
CRequestImpl::InternetStatusCallback: Status: Cookie found and will be sent with request
CRequestImpl::InternetStatusCallback: Status: Sending request
CRequestImpl::InternetStatusCallback: Status: Request sent (1098 Bytes)
CRequestImpl::InternetStatusCallback: Status: Receiving Response
CRequestImpl::InternetStatusCallback: Status: Response Received (519 Bytes)

CRequestImpl::InternetStatusCallback: Status: Request complete, result=cc0010, err=0
CRequestImpl::onRequestComplete: error=0
CRequestImpl::onRequestComplete: internet data available, 276 bytes
CRequestImpl::onRequestComplete: read 276 bytes
CRequestImpl::InternetStatusCallback: Status: Receiving Response
CRequestImpl::InternetStatusCallback: Status: Response Received (1756 Bytes)
CRequestImpl::onRequestComplete: internet data available, 1679 bytes
CRequestImpl::onRequestComplete: read 1679 bytes
...
CRequestImpl::InternetStatusCallback: Status: Receiving Response
CRequestImpl::InternetStatusCallback: Status: Response Received (7 Bytes)
CRequestImpl::onRequestComplete: internet data available, 2 bytes
CRequestImpl::onRequestComplete: read 2 bytes
CRequestImpl::InternetStatusCallback: Status: Receiving Response
CRequestImpl::onRequestComplete: InternetQueryDataAvailable failed with error 997: Overlapped I/O operation is in progress.

CRequestImpl::InternetStatusCallback: Status: Response Received (283 Bytes)
CRequestImpl::InternetStatusCallback: Status: Request complete, result=1, err=276
CRequestImpl::onRequestComplete: error=276
CRequestImpl::onRequestComplete: Internet request failed with error 276: The extended attribute file on the mounted file system is corrupt.