Method spsc_queue

benchmarks/ext/1024cores/spscqueue.h:33–38

{ 
public: 
  spsc_queue() 
  { 
      node* n = new node; 
      n->next_ = 0; 
      tail_ = head_ = first_= tail_copy_ = n; 
  }

  explicit spsc_queue(size_t prealloc)
  {