If a function needs to maintain the state of some data over successive calls, such as a working buffer or a pointer, the caller should provide this data.

如果函数需要在一系列调用期间维持某些数据的状态，比如工作缓存或指针，那么调用者应该提供此数据。

youdao

Because the state of the internal buffer is FULL, the available data is returned and a notify issued.

因为内部缓冲的状态是FULL，所以可用数据将被返回，并发出一个notify 。

youdao

As we know, we also need to add a sequence number and a state (IOType variable, IOZeroReadCompleted, etc.) to our buffer.

众所周知，我们也需要添加序号和状态(IOType变量，IOZeroReadCompleted，等等)到我们的缓冲中。

youdao

Second, China wants to keep a zany North Korea as a buffer state.

FORBES: Magazine Article

When India was allied with the Soviet Union, China and the United States supported Pakistan as a buffer state, reinforcing the neighbors' historical rivalry.

CNN: GIVE PEACE A CHANCE

In that despatch Mr Chun reportedly says some Chinese officials were willing to "face the new reality" that North Korea was of little value to China as a buffer state.

BBC: Rare insight into secretive China-N Korea ties