Split declaration and implementation of `CapioFile` class#211

Merged

GlassOfWhiskey merged 15 commits intomasterfrom

capio-file-refactor

Mar 23, 2026

Commits on Mar 14, 2026

Split declaration and implementation of CapioFile class
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Commits on Mar 18, 2026

Removed useless locks
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Commits on Mar 19, 2026

Added mmissing lock guards
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Added shared mutex when possible
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More tests
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More tests
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More tests
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todos
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Rewrote of insertSector for a better and correct version
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Changed _n_close data type
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data types
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Reverted data types
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Added TODO to convert atomic<int> to atomic<unsigned int>
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More tests and more comments with future todos
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Added missing tests
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