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C#

C# static code analysis

Unique rules to find Bugs, Vulnerabilities, Security Hotspots, and Code Smells in your C# code

  • All rules 493
  • Vulnerability46
  • Bug88
  • Security Hotspot24
  • Code Smell335

  • Quick Fix 61
Filtered: 11 rules found
multi-threading
    Impact
      Clean code attribute
        1. Blocks should not be synchronized on local variables

           Bug
        2. Threads should not lock on objects with weak identity

           Code Smell
        3. "Thread.Resume" and "Thread.Suspend" should not be used

           Bug
        4. "this" should not be exposed from constructors

           Code Smell
        5. "ConfigureAwait(false)" should be used

           Code Smell
        6. "async" methods should not return "void"

           Bug
        7. "ThreadStatic" fields should not be initialized

           Bug
        8. Instance members should not write to "static" fields

           Code Smell
        9. Shared resources should not be used for locking

           Bug
        10. Blocks should be synchronized on read-only fields

           Bug
        11. Locks should be released on all paths

           Bug

        "Thread.Resume" and "Thread.Suspend" should not be used

        intentionality - logical
        reliability
        Bug
        • multi-threading
        • unpredictable

        Why is this an issue?

        More Info

        Thread.Suspend and Thread.Resume can give unpredictable results, and both methods have been deprecated. Indeed, if Thread.Suspend is not used very carefully, a thread can be suspended while holding a lock, thus leading to a deadlock.

        There are other synchronization mechanisms that are safer and should be used instead, such as:

        • Monitor provides a mechanism that synchronizes access to objects.
        • Mutex provides a mechanism that synchronizes interprocess access to a protected resource.
        • Semaphore provides a mechanism that allows limiting the number of threads that have access to a protected resources concurrently.
        • Events enable a class to notify others when something of interest occurs.
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