7bb601b5d7
* Modify rule S2551: clarify example in description * Modify rule S2551: improve word choice
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748 B
Plaintext
6 lines
748 B
Plaintext
== Why is this an issue?
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A shared resource refers to a resource or data that can be accessed or modified by multiple https://en.wikipedia.org/wiki/Thread_(computing)[threads] or concurrent parts of a program. It could be any piece of data, object, file, database connection, or system resource that needs to be accessed or manipulated by multiple parts of a program at the same time.
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Shared resources should not be used for https://en.wikipedia.org/wiki/Lock_(computer_science)[locking] because it increases the chance of https://en.wikipedia.org/wiki/Deadlock[deadlocks]. Any other thread could acquire (or attempt to acquire) the same lock while doing some operation, without knowing that the resource is meant to be used for locking purposes.
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