void LearnEngine::LearnList::add_sample(const PHV &phv)
{
static thread_local ByteContainer sample;
sample.clear();
builder(phv, &sample);
std::unique_lock<std::mutex> lock(mutex);
const auto it = filter.find(sample);
if(it != filter.end()) return;
buffer.insert(buffer.end(), sample.begin(), sample.end());
num_samples++;
auto filter_it = filter.insert(filter.end(), std::move(sample));
FilterPtrs &filter_ptrs = old_buffers[buffer_id];
filter_ptrs.unacked_count++;
filter_ptrs.buffer.push_back(filter_it);
if(num_samples == 1 && max_samples > 1) {
buffer_started = clock::now();
b_can_send.notify_one(); // wake transmit thread to update cond var wait time
}
else if(num_samples >= max_samples) {
while(buffer_tmp.size() != 0) {
b_can_swap.wait(lock);
}
swap_buffers();
b_can_send.notify_one();
}
}
