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https://issues.apache.org/jira/browse/THRIFT-5678?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jens Geyer resolved THRIFT-5678.
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Fix Version/s: 0.21.0
Assignee: Christopher Friedt
Resolution: Fixed
> TConnectedClient: warning due to non-virtual dtor
> -------------------------------------------------
>
> Key: THRIFT-5678
> URL: https://issues.apache.org/jira/browse/THRIFT-5678
> Project: Thrift
> Issue Type: Bug
> Components: C++ - Library
> Affects Versions: 0.13.0, 0.14.0, 0.15.0, 0.14.1, 0.14.2, 0.16.0, 0.17.0
> Reporter: Christopher Friedt
> Assignee: Christopher Friedt
> Priority: Minor
> Fix For: 0.21.0
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> In TConnectedClient.h the destructor is non-virtual, which causes the warning
> below.
> {code:java}
> In member function 'void
> apache::thrift::server::TServerFramework::disposeConnectedClient(apache::thrift::server::TConnectedClient*)':
> lib/cpp/src/thrift/server/TServerFramework.cpp:234:3: warning: deleting
> object of polymorphic class type 'apache::thrift::server::TConnectedClient'
> which has non-virtual destructor might cause undefined behavior
> [-Wdelete-non-virtual-dtor]
> 234 | delete pClient;
> | ^~~~~~~~~~~~~~{code}
> Not itself a major problem, but Zephyr CI promotes all warnings to errors,
> which causes builds to fail.
> TConnectedClient.cpp has the following line of code:
> {code:java}
> TConnectedClient::~TConnectedClient() = default;{code}
> It might be considered a regression. The commit that removed the virtual
> qualifier was 042580f53441efe1bc5c80c89351fcb30740659e
> Suggested fix is to mark it as virtual and set it to default in the header,
> and then delete the definition in the .cpp file.
> Alternatively, keep the .cpp dtor, but simply re-add the virtual keyword in
> the header
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