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ot::Mle::DiscoverScanner class
Implements MLE Discover Scan.
Syntax
class DiscoverScanner : public InstanceLocator,
private NonCopyable
{
friend class ot::Instance;
friend class ot::MeshForwarder;
friend class Mle;
public:
static constexpr uint32_t kDefaultScanDuration = Mac::kScanDurationDefault;
typedef otActiveScanResult ScanResult;
typedef otHandleActiveScanResult Handler;
typedef MeshCoP::SteeringData::HashBitIndexes FilterIndexes;
explicit DiscoverScanner(Instance &aInstance);
Error Discover(const Mac::ChannelMask &aScanChannels,
Mac::PanId aPanId,
bool aJoiner,
bool aEnableFiltering,
const FilterIndexes *aFilterIndexes,
Handler aCallback,
void *aContext);
bool IsInProgress(void) const { return (mState != kStateIdle); }
Error SetJoinerAdvertisement(uint32_t aOui, const uint8_t *aAdvData, uint8_t aAdvDataLength);
private:
enum State : uint8_t
{
kStateIdle,
kStateScanning,
kStateScanDone,
};
static constexpr uint32_t kMaxOui = 0xffffff;
Mac::TxFrame *PrepareDiscoveryRequestFrame(Mac::TxFrame &aFrame);
void HandleDiscoveryRequestFrameTxDone(Message &aMessage, Error aError);
void Stop(void) { HandleDiscoverComplete(); }
void HandleDiscoveryResponse(Mle::RxInfo &aRxInfo) const;
void HandleDiscoverComplete(void);
void HandleScanDoneTask(void);
void HandleTimer(void);
using ScanTimer = TimerMilliIn<DiscoverScanner, &DiscoverScanner::HandleTimer>;
using ScanDoneTask = TaskletIn<DiscoverScanner, &DiscoverScanner::HandleScanDoneTask>;
Callback<Handler> mCallback;
ScanDoneTask mScanDoneTask;
ScanTimer mTimer;
FilterIndexes mFilterIndexes;
Mac::ChannelMask mScanChannels;
State mState;
uint32_t mOui;
uint8_t mScanChannel;
uint8_t mAdvDataLength;
uint8_t mAdvData[MeshCoP::JoinerAdvertisementTlv::kAdvDataMaxLength];
bool mEnableFiltering : 1;
bool mShouldRestorePanId : 1;
};
Fields
Field
Description
Declared as
Default scan duration (per channel), in milliseconds.
Callback<Handler>
ScanDoneTask
ScanTimer
uint32_t
References
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ot::Mle::DiscoverScanner is inherited by 2 classess:
Instances
Instance
Scope
Location
Project