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ot::MeshForwarder::FwdFrameInfo class
Syntax
class FwdFrameInfo
{
public:
enum ExpireChecker : uint8_t
{
kIsExpired,
};
struct Info
{
uint16_t mSrcRloc16;
uint16_t mDatagramTag;
};
void Init(uint16_t aSrcRloc16, uint16_t aDatagramTag, Message::Priority aPriority);
bool Matches(const Info &aInfo) const;
bool Matches(const ExpireChecker) const { return IsExpired(); }
void ResetLifetime(void) { mLifetime = kLifetime; }
void DecrementLifetime(void) { mLifetime--; }
bool IsExpired(void) const { return (mLifetime == 0); }
#if OPENTHREAD_CONFIG_DELAY_AWARE_QUEUE_MANAGEMENT_ENABLE
bool ShouldDrop(void) const { return mShouldDrop; }
void MarkToDrop(void) { mShouldDrop = true; }
#endif
Message::Priority GetPriority(void) const { return static_cast<Message::Priority>(mPriority); }
private:
#if OPENTHREAD_CONFIG_DELAY_AWARE_QUEUE_MANAGEMENT_ENABLE
static constexpr uint8_t kRetainTime = OPENTHREAD_CONFIG_DELAY_AWARE_QUEUE_MANAGEMENT_FRAG_TAG_RETAIN_TIME;
#else
static constexpr uint8_t kRetainTime = 0;
#endif
static constexpr uint8_t kLifetime = OT_MAX(kReassemblyTimeout, kRetainTime);
uint16_t mSrcRloc16;
uint16_t mDatagramTag;
uint8_t mLifetime;
uint8_t mPriority : 2;
#if OPENTHREAD_CONFIG_DELAY_AWARE_QUEUE_MANAGEMENT_ENABLE
bool mShouldDrop : 1;
#endif
static_assert(Message::kNumPriorities <= 4, "mPriority as a 2-bit does not fit all `Priority` values");
};
Fields
Field
Declared as
uint8_t : 2
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