Buffer in multi thread

[alex.]

As the attached design, multi thread(reentrance) will be started to do data transfer on server.

Some threads need to open a buffer inside and accumulate the data, and write data to DB with time interval

Some threads not need.

Others parts have all been done, only this buffer, If I initialize the buffer in all the thread, but some buffer not need do so, then the memory is wasted.

So how to define this buffer efficiently.

Any suggestion, thanks.

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