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ot::Ncp::ChangedPropsSet class
Defines a class to track a set of property/status changes that require update to host. The properties that can be added to this set must support sending unsolicited updates. This class also provides mechanism for user to block certain filterable properties disallowing the unsolicited update from them.
Syntax
class ChangedPropsSet
{
public:
struct Entry
{
spinel_prop_key_t mPropKey;
spinel_status_t mStatus;
bool mFilterable;
};
ChangedPropsSet(void)
: mChangedSet(0)
, mFilterSet(0)
{
}
void Clear(void) { mChangedSet = 0; }
bool IsEmpty(void) const { return (mChangedSet == 0); }
void AddProperty(spinel_prop_key_t aPropKey) { Add(aPropKey, SPINEL_STATUS_OK); }
void AddLastStatus(spinel_status_t aStatus) { Add(SPINEL_PROP_LAST_STATUS, aStatus); }
const Entry *GetSupportedEntries(uint8_t &aNumEntries) const
{
aNumEntries = GetNumEntries();
return &mSupportedProps[0];
}
const Entry *GetEntry(uint8_t aIndex) const
{
return (aIndex < GetNumEntries()) ? &mSupportedProps[aIndex] : nullptr;
}
bool IsEntryChanged(uint8_t aIndex) const { return IsBitSet(mChangedSet, aIndex); }
void RemoveEntry(uint8_t aIndex) { ClearBit(mChangedSet, aIndex); }
otError EnablePropertyFilter(spinel_prop_key_t aPropKey, bool aEnable);
bool IsEntryFiltered(uint8_t aIndex) const { return IsBitSet(mFilterSet, aIndex); }
bool IsPropertyFiltered(spinel_prop_key_t aPropKey) const;
void ClearFilter(void) { mFilterSet = 0; }
private:
uint8_t GetNumEntries(void) const;
void Add(spinel_prop_key_t aPropKey, spinel_status_t aStatus);
static void SetBit(uint64_t &aBitset, uint8_t aBitIndex) { aBitset |= (1ULL << aBitIndex); }
static void ClearBit(uint64_t &aBitset, uint8_t aBitIndex) { aBitset &= ~(1ULL << aBitIndex); }
static bool IsBitSet(uint64_t aBitset, uint8_t aBitIndex) { return (aBitset & (1ULL << aBitIndex)) != 0; }
static const Entry mSupportedProps[];
uint64_t mChangedSet;
uint64_t mFilterSet;
};
Fields
Field
Declared as