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MeshForwader: Update HandleDataRequest() to use the counter mQueuedIndirectMessageCnt (#688)

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This commit makes the following changes in `HandleDataRequest()` in
`MeshForwader` class:
- We use the counter `mQueuedIndirectMessageCnt` to determine if there
  are any queued frames for a given child.
- Handle data poll/request from a child only.
This commit is contained in:
Abtin Keshavarzian
2016-09-26 15:12:41 -07:00
committed by Jonathan Hui
parent 2071716936
commit ed6d72eccd
1 changed files with 6 additions and 12 deletions
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src/core/thread/mesh_forwarder.cpp
+6 -12
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@@ -1654,27 +1654,21 @@ void MeshForwarder::UpdateFramePending()
void MeshForwarder::HandleDataRequest(const Mac::Address &aMacSource, const ThreadMessageInfo &aMessageInfo)
{
Neighbor *neighbor;
uint8_t childIndex;
Child *child;
// Security Check: only process secure Data Poll frames.
VerifyOrExit(aMessageInfo.mLinkSecurity, ;);
assert(mMle.GetDeviceState() != Mle::kDeviceStateDetached);
VerifyOrExit((neighbor = mMle.GetNeighbor(aMacSource)) != NULL, ;);
neighbor->mLastHeard = Timer::GetNow();
VerifyOrExit((child = mMle.GetChild(aMacSource)) != NULL, ;);
child->mLastHeard = Timer::GetNow();
mMle.HandleMacDataRequest(*static_cast<Child *>(neighbor));
childIndex = mMle.GetChildIndex(*static_cast<Child *>(neighbor));
mMle.HandleMacDataRequest(*child);
for (Message *message = mSendQueue.GetHead(); message; message = message->GetNext())
if (child->mQueuedIndirectMessageCnt > 0)
{
if (message->GetDirectTransmission() == false && message->GetChildMask(childIndex))
{
neighbor->mDataRequest = true;
break;
}
child->mDataRequest = true;
}
mScheduleTransmissionTask.Post();