Memory leak in axis2c generated code
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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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