[Ns-developers] Memory leak in Wifi Qos

[Mirko Banchi]

Hi all,

seems that a memory leak occurs when qos wifi objects are used. In
particular this involves EdcaTxopN object. This can be obtained with the
script example/simple-wifi-frame-aggregation.cc
Valgrind output is:

40,732 (1,496 direct, 39,236 indirect) bytes in 11 blocks are definitely
lost in loss record 72 of 76
==11519==    at 0x4023554: operator new(unsigned int)
(vg_replace_malloc.c:224)
==11519==    by 0x479E4D2: ns3::TypeId
ns3::TypeId::AddConstructor<ns3::EdcaTxopN>()::Maker::Create()
(type-id.h:429)
==11519==    by 0x439442D: ns3::FunctorCallbackImpl<ns3::ObjectBase*
(*)(), ns3::ObjectBase*, ns3::empty, ns3::empty, ns3::empty, ns3::empty,
ns3::empty, ns3::empty, ns3::empty, ns3::empty,
ns3::empty>::operator()() (callback.h:179)
==11519==    by 0x43E371E: ns3::Callback<ns3::ObjectBase*, ns3::empty,
ns3::empty, ns3::empty, ns3::empty, ns3::empty, ns3::empty, ns3::empty,
ns3::empty, ns3::empty>::operator()() const (callback.h:420)
==11519==    by 0x43E2DC2: ns3::ObjectFactory::Create() const
(object-factory.cc:69)
==11519==    by 0x47DD9E8: ns3::Ptr<ns3::EdcaTxopN>
ns3::ObjectFactory::Create<ns3::EdcaTxopN>() const (object-factory.h:110)
==11519==    by 0x47D9132: ns3::QosWifiMacHelper::Create() const
(qos-wifi-mac-helper.cc:144)
==11519==    by 0x47B171D: ns3::WifiHelper::Install(ns3::WifiPhyHelper
const&, ns3::WifiMacHelper const&, ns3::NodeContainer) const
(wifi-helper.cc:92)
==11519==    by 0x80511E6: main (test.cc:79)

Valgrind indicates that the lost bytes are istantiated in type-id.h but
i can't understand the reason. Any idea?

Thank you all,

Mirko

-- 
Mirko Banchi

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