Xin Chen created PROTON-1691:
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Summary: Memory leak when creating endpoint objects with a handler
Key: PROTON-1691
URL: https://issues.apache.org/jira/browse/PROTON-1691
Project: Qpid Proton
Issue Type: Bug
Components: proton-c
Affects Versions: proton-c-0.18.1
Environment: Reproduced on Windows but the code is not platform
specific.
Reporter: Xin Chen
Using the Python binding, one can provide a handler when creating an Endpoint
object (Connection/Session/Link). This handler object is set in the record
context. In pn_###_finalize methods, the context is not cleared by calling
pn_record_clear. This results in a _cadapter object leaking in Python process
without any references. The fix is simply to call pn_record_clear before
freeing the context. For example, in pn_link_finalize (line 1121 in engine.c),
+ pn_record_clear(link->context);
pn_free(link->context);
With this fix the memory does not grow anymore with repeated link
creation/closing. I only use a handler in link endpoint but I think this is
needed for connection and session as well.
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