136         mWritePointer    = mBuffer;  in Clear()
137         mRemainingLength = sizeof(mBuffer);  in Clear()
146     bool IsEmpty(void) const { return (mWritePointer == mBuffer); }  in IsEmpty()
153     uint16_t GetLength(void) const { return static_cast<uint16_t>(mWritePointer - mBuffer); }  in GetLength()
160     uint8_t *GetFrame(void) { return mBuffer; }  in GetFrame()
163     uint8_t mBuffer[kSize];  member in ot::Spinel::FrameBuffer
193         mWriteFrameStart = mBuffer;  in Clear()
194         mWritePointer    = mBuffer + kHeaderSize;  in Clear()
220         if (GetFrame() + aLength <= GetArrayEnd(mBuffer))  in SetLength()
223             mRemainingLength = static_cast<uint16_t>(mBuffer + kSize - mWritePointer);  in SetLength()
249         if (mWriteFrameStart + kHeaderSize + aSkipLength <= GetArrayEnd(mBuffer))  in SetSkipLength()
253             mRemainingLength = static_cast<uint16_t>(mBuffer + kSize - mWritePointer);  in SetSkipLength()
282 …uint16_t GetFrameMaxLength(void) const { return static_cast<uint16_t>(mBuffer + kSize - GetFrame()…  in GetFrameMaxLength()
322         mRemainingLength = static_cast<uint16_t>(mBuffer + kSize - mWritePointer);  in DiscardFrame()
331     bool HasSavedFrame(void) const { return (mWriteFrameStart != mBuffer); }  in HasSavedFrame()
349         assert(aFrame == nullptr || (mBuffer <= aFrame && aFrame < GetArrayEnd(mBuffer)));  in GetNextSavedFrame()
351         aFrame = (aFrame == nullptr) ? mBuffer : aFrame + aLength;  in GetNextSavedFrame()
380         uint16_t len = static_cast<uint16_t>(mWriteFrameStart - mBuffer);  in ClearSavedFrames()
384 …       memmove(mBuffer, mWriteFrameStart, static_cast<uint16_t>(mWritePointer - mWriteFrameStart));  in ClearSavedFrames()
444     uint8_t  mBuffer[kSize];  member in ot::Spinel::MultiFrameBuffer