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Do not regenerate frame when retransmitting. (#883)

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This commit is contained in:
Jonathan Hui
2016-10-26 09:06:42 -07:00
committed by GitHub
parent d4e112dc3f
commit cf2a74a209
1 changed files with 35 additions and 32 deletions
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src/core/mac/mac.cpp
+35 -32
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@@ -711,40 +711,43 @@ void Mac::HandleBeginTransmit(void)
Frame &sendFrame(*static_cast<Frame *>(otPlatRadioGetTransmitBuffer(mNetif.GetInstance())));
ThreadError error = kThreadError_None;
sendFrame.SetPower(mMaxTransmitPower);
switch (mState)
{
case kStateActiveScan:
otPlatRadioSetPanId(mNetif.GetInstance(), kPanIdBroadcast);
sendFrame.SetChannel(mScanChannel);
SendBeaconRequest(sendFrame);
sendFrame.SetSequence(0);
break;
case kStateTransmitBeacon:
sendFrame.SetChannel(mChannel);
SendBeacon(sendFrame);
sendFrame.SetSequence(mBeaconSequence++);
break;
case kStateTransmitData:
sendFrame.SetChannel(mChannel);
SuccessOrExit(error = mSendHead->HandleFrameRequest(sendFrame));
sendFrame.SetSequence(mDataSequence);
break;
default:
assert(false);
break;
}
// Security Processing
ProcessTransmitSecurity(sendFrame);
if (sendFrame.GetPower() > mMaxTransmitPower)
if (mCsmaAttempts == 0 && mTransmitAttempts == 0)
{
sendFrame.SetPower(mMaxTransmitPower);
switch (mState)
{
case kStateActiveScan:
otPlatRadioSetPanId(mNetif.GetInstance(), kPanIdBroadcast);
sendFrame.SetChannel(mScanChannel);
SendBeaconRequest(sendFrame);
sendFrame.SetSequence(0);
break;
case kStateTransmitBeacon:
sendFrame.SetChannel(mChannel);
SendBeacon(sendFrame);
sendFrame.SetSequence(mBeaconSequence++);
break;
case kStateTransmitData:
sendFrame.SetChannel(mChannel);
SuccessOrExit(error = mSendHead->HandleFrameRequest(sendFrame));
sendFrame.SetSequence(mDataSequence);
break;
default:
assert(false);
break;
}
// Security Processing
ProcessTransmitSecurity(sendFrame);
if (sendFrame.GetPower() > mMaxTransmitPower)
{
sendFrame.SetPower(mMaxTransmitPower);
}
}
error = otPlatRadioReceive(mNetif.GetInstance(), sendFrame.GetChannel());