Multithreaded deep copies

Question

What is the best way to execute a deep copy in the constructor of an object that is part of multi-threaded C ++ code?

Answer 1

Depends on your data structures.

I assume that the problem you are facing (although you are not saying this) is a potential inverse of blocking. If you are copying deeply, you are likely to take one or more locks for the various objects that you need to copy.

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Answer 2

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Answer 3

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Lock this object, which the code uses for writing. When you deep copy, lock the object, make your deep copy, and then unlock it.

Or am I missing something here?