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ot::InstanceLocator class
Implements a locator for an OpenThread Instance object. The `InstanceLocator` is used as base class of almost all other OpenThread classes. It provides a way for an object to get to its owning/parent OpenThread `Instance` and also any other `Type` within the `Instance` member variable property hierarchy (using `Get()` method). If multiple-instance feature is supported, the owning/parent OpenThread `Instance` is tracked as a reference. In the single-instance case, this class becomes an empty base class.
Syntax
class InstanceLocator : public GetProvider<InstanceLocator>
{
friend class InstanceLocatorInit;
public:
#if OPENTHREAD_CONFIG_MULTIPLE_INSTANCE_ENABLE
Instance &GetInstance(void) const { return *mInstance; }
#else
Instance &GetInstance(void) const { return *reinterpret_cast<Instance *>(&gInstanceRaw); }
#endif
protected:
explicit InstanceLocator(Instance &aInstance)
#if OPENTHREAD_CONFIG_MULTIPLE_INSTANCE_ENABLE
: mInstance(&aInstance)
#endif
{
OT_UNUSED_VARIABLE(aInstance);
}
private:
InstanceLocator(void) = default;
#if OPENTHREAD_CONFIG_MULTIPLE_INSTANCE_ENABLE
Instance *mInstance;
#endif
};