ImgProcessingPool::ImgProcessingPool(std::auto_ptr<ImgProcessingThread> worker_thread, size_t max_threads/*= 0*/)
: impl_(*(new Impl(worker_thread->GetFileCount())))
{
impl_.max_threads_ = max_threads;
impl_.pool_.push_back(worker_thread.release());
// impl_.file_count_ = impl_.pool_.front().GetFileCount();
if (impl_.file_count_ > 1)
{
size_t threads= GetLogicalProcessorCores();
if (impl_.max_threads_ > 0 && threads > impl_.max_threads_)
threads = impl_.max_threads_;
if (threads > 1)
{
// divide work between cores
if (impl_.file_count_ < threads)
threads = static_cast<int>(impl_.file_count_);
// create more threads (all suspended)
for (int thread= 1; thread < threads; ++thread)
impl_.pool_.push_back(impl_.pool_[0].Clone());
}
}
}
