otPlatDnssdBrowser struct

Starts a service browser. Initiates a continuous search for the specified `mServiceType` in @p aBrowser. For sub-type services, use `mSubTypeLabel` to define the sub-type, for base services, set `mSubTypeLabel` to NULL. Discovered services are reported through the `mCallback` function in @p aBrowser. Services that have been removed are reported with a TTL value of zero. The callback may be invoked immediately with cached information (if available) and potentially before this function returns. When cached results are used, the reported TTL value will reflect the original TTL from the last received response. Multiple browsers can be started for the same service, provided they use different callback functions.

Stops a service browser. No action is performed if no matching browser with the same service and callback is currently active.

Iterates over browsers. Requires `OPENTHREAD_CONFIG_MULTICAST_DNS_ENTRY_ITERATION_API_ENABLE`. On success, @p aBrowser is populated with information about the next browser. The `mCallback` field is always set to `NULL` as there may be multiple active browsers with different callbacks. Other pointers within the `otMdnsBrowser` structure remain valid until the next call to any OpenThread stack's public or platform API/callback.

Starts a service browser. Initiates a continuous search for the specified `mServiceType` in @p aBrowser. For sub-type services, `mSubTypeLabel` specifies the sub-type, for base services, `mSubTypeLabel` is set to NULL. Discovered services should be reported through the `mCallback` function in @p aBrowser. Services that have been removed are reported with a TTL value of zero. The callback may be invoked immediately with cached information (if available) and potentially before this function returns. When cached results are used, the reported TTL value should reflect the original TTL from the last received response. Multiple browsers can be started for the same service, provided they use different callback functions. The @p aBrowser and all its contained information (strings) are only valid during this call. The platform MUST save a copy of the information if it wants to retain the information after returning from this function.

Stops a service browser. No action is performed if no matching browser with the same service and callback is currently active. The @p aBrowser and all its contained information (strings) are only valid during this call. The platform MUST save a copy of the information if it wants to retain the information after returning from this function.