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| CodeSonar® 9.2p0 | CONFIDENTIAL | CodeSecure Inc |
A closeable has not been immediately stored into a local variable.
The garbage collector automatically releases the memory allocated to a managed object when that object is no longer used. However, it is not possible to predict when garbage collection will occur. Furthermore, the garbage collector has no knowledge of unmanaged resources (such as database, streams, open files, etc.). For these reasons, they should be disposed, or otherwise the system might run into an out of resource exception. The dispose operation should always be performed, in every execution path. For this reason, the using or finally constructs should be used.
This checker verifies that resources are always released after being open, for every execution path. This checker recognizes and accepts as correct code where a resource is stored into a field or returned from a method and is then closed at the end, at least for some frequent scenarios.
| Class Name | Closeable Not Stored (C#) | |||
|---|---|---|---|---|
| Significance | reliability | |||
| Mnemonic | CSHARP.ALLOC.LEAK.NOTSTORED | |||
| Categories |
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| Availability | Available for C# only. |
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| Enabling | Checks for this warning class are enabled by
default. To disable them, add the following WARNING_FILTER rule to the
project configuration file.
WARNING_FILTER += discard class="Closeable Not Stored (C#)" |
Guarantee that all resources are released, typically by using a using or a finally construct. In general, avoid storing resources into fields or returning resources from methods or letting a method close a resource passed to it as a parameter.
The following configuration file parameters affect checks for this warning class.
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