Synchronous Channel Representation

// ********************************************************
/// SCHANNEL. Synchronous channels
// ********************************************************

struct RTL_EXTERN schannel_t
{
  slist_t *waiting_to_read;             ///< fthreads waiting for a writer
  slist_t *waiting_to_write;            ///< fthreads waiting for a reader
  schannel_t(gc::generic::gc_profile_t*);
  void push_reader(fthread_t *);        ///< add a reader
  fthread_t *pop_reader();              ///< pop a reader, NULL if none
  void push_writer(fthread_t *);        ///< add a writer
  fthread_t *pop_writer();              ///< pop a writer, NULL if none
private: // uncopyable
  schannel_t(schannel_t const&) = delete;
  void operator= (schannel_t const&) = delete;
};