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Serializing Serialization: How does pointer tracking work?
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Serializing Serialization: How does pointer tracking work?
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How does pointer tracking work in boost serialization? I am using it to serialize messages between system components, and I have the impression that I get a lot of incorrectly shared objects. Is it possible that if I use shared pointers to the objects I want to serialize and a new object happens to have the same address as a previous object that has since been deleted this will incorrectly be captured as a shared refernce?
Imagine the following for objects for serializing:
Starting with A, using a stack to determine what we still need to visit:
- Visit
A - Push
B,C - Pop and Visit
C - Push 'D'
- Something else deletes B and replaces it with D
- Pop and visit 'D'
- Pop and visit what was labeled as
B, but is now reallyDas well
Then you have a situation that will incorrectly be captured as a shared reference. If anything can change any of the pointers, or objects they point to between the start of the serialization and the end of it then you'll get an inconsistent state.
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