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From "Manoj Dhirde (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AXIS2C-1542) Memory leak in axis2c generated code
Date Fri, 25 Mar 2011 17:32:05 GMT
Memory leak in axis2c generated code
------------------------------------

                 Key: AXIS2C-1542
                 URL: https://issues.apache.org/jira/browse/AXIS2C-1542
             Project: Axis2-C
          Issue Type: Bug
          Components: core/clientapi
    Affects Versions: 1.6.0
         Environment: Linux 
            Reporter: Manoj Dhirde
             Fix For: 1.7.0


Hi,

We are on version 1.6.0 for our axis2c client. We generated c code using
WSDL2C and there seems to be memory leak of 8K per request on the client
side. ValGrind analysis is pointing to axis2c-generated code as follows,

   ==22206== 48,164 (32,275 direct, 15,889 indirect) bytes in 374 blocks are definitely lost
in loss record 647 of 675
   ==22206==    at 0x4023D6E: malloc (vg_replace_malloc.c:207)
   ==22206==    by 0x13767376: axutil_allocator_malloc_impl (in /opt/sac/lib/libaxutil.so.0)
   ==22206==    by 0x1376C315: axutil_qname_create (in /opt/sac/lib/libaxutil.so.0)
   ==22206==    by 0x134E7A57: adb_searchRecordsResponse_deserialize (in /opt/sac/lib/libACSServiceClient.so)
   ==22206==    by 0x135C7534: axis2_stub_op_ACSServiceService_searchRecords (in /opt/sac/lib/libACSServiceClient.so)


I checked the adb_searchRecordsResponse_deserialize which is part of adb_searchRecordsResponse.c
generated from the wsdl by WSDL2C, and I can see it calling axutil_qname_create and later
calling axutil_qname_free as well. But this doesnt seem to get freed.


Then checked the qname.c under axis2c-src-1.6.0/util/src and in the axutil_qname_free function
it reduces the property 'ref' by 1 and then checks for it being non-zero. And only if it's
non-zero, axis frees the qname. Maybe having another reference to the qname is causing the
ref being non-zero even after reducing it by one in axutil_qname_free? We are getting the
searchResponse back from service and then getting elements from it. One example of it is as
follows,


adb_subscriberList_t* subscribers = adb_searchRecordsResponse_get_subscribers(searchRecordsResponse,
env);


and after this we are freeing searchRecordsResponse. Is this adb_subscriberList_t* subscribers
causing a double reference and not freeing qname.


Any help on this is greatly appreciated.


Thanks,


Manoj Dhirde.

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