62     size_t   bytesUntilWrap;  in Write()  local
87     bytesUntilWrap = mCapacity - writeIndex;  in Write()
88     if (aLength <= bytesUntilWrap)  in Write()
130         size_t         bytesWrapped  = aLength - bytesUntilWrap;  in Write()
132         memcpy(&mDataBuffer[writeIndex], &dataIndexable[0], bytesUntilWrap);  in Write()
133         memcpy(&mDataBuffer[0], &dataIndexable[bytesUntilWrap], bytesWrapped);  in Write()
139 …     LogDebg("Extending tail link by length %u (wrapping)", static_cast<unsigned>(bytesUntilWrap));  in Write()
140         error = aEndpoint.SendByExtension(bytesUntilWrap, flags | OT_TCP_SEND_MORE_TO_COME);  in Write()
152             VerifyOrExit(error == kErrorNone, aLength = bytesUntilWrap);  in Write()
165     size_t bytesUntilWrap;  in HandleForwardProgress()  local
170     bytesUntilWrap = mCapacity - mStartIndex;  in HandleForwardProgress()
172     if (bytesRemoved < bytesUntilWrap)  in HandleForwardProgress()
178         mStartIndex = bytesRemoved - bytesUntilWrap;  in HandleForwardProgress()
200     size_t bytesUntilWrap;  in GetIndex()  local
204     bytesUntilWrap = mCapacity - aStart;  in GetIndex()
205     if (aOffsetFromStart < bytesUntilWrap)  in GetIndex()
211         index = aOffsetFromStart - bytesUntilWrap;  in GetIndex()