pike.git/ lib/ modules/ Sql.pmod/ pgsql_util.pmod

2021-03-27

2021-03-27 09:39:42 by Stephen R. van den Berg <srb@cuci.nl>

• 909e4a5a4d8cf8d95c096c9725e7fd6c7c3ac524 (38 lines) (+15/-23) ^{[ Show | Annotate ]}
  Branch: master

pgsql: Shufflerised.

82:   //! The instance of the pgsql dedicated backend.   final Pike.Backend local_backend;    + private Shuffler.Shuffler shuffler = Shuffler.Shuffler();   private Pike.Backend cb_backend;   private Result qalreadyprinted;   private Thread.Mutex backendmux = Thread.Mutex();
156:   protected void create() {    atexit(_destruct);    // Run callbacks from our local_backend until DefaultBackend has started -  cb_backend = local_backend = Pike.Backend(); +  shuffler->set_backend(cb_backend = local_backend = Pike.Backend());    call_out(default_backend_runs, 0);   }   
485:    |SSL.File   #endif    socket; +  final Shuffler.Shuffle shuffle;    final multiset(Result) runningportals = (<>);       final MUTEX nostash;
504:    final int queueinidx = -1;   #endif    - #if PG_DEBUGHISTORY > 0 -  final int(-1..) output_to(Stdio.Stream stm, void|int(0..) nbytes) { -  Stdio.Buffer tb = Stdio.Buffer(this); -  int ret = o::output_to(stm, nbytes); -  if (ret) { -  i->history += ({">>" + tb->read(ret)}); -  i->history = i->history[<PG_DEBUGHISTORY - 1 ..]; -  } -  return ret; -  } - #endif -  +     private inline void queueup(Result portal) {    qportals->write(portal); portal->_synctransact = synctransact;    PD("%d>%O %d %d Queue portal %d bytes\n", socket->query_fd(),
558:    return !waitforreal && bufcon(this)->start();    }    -  private int write_cb() { -  Thread.MutexKey lock = shortmux->lock(); +  private void done_cb() {    if (this) { // Guard against async destructs -  output_to(socket); -  lock = 0; -  if (!i->fillread && !sizeof(this)) +  if (!i->fillread)    close();    } -  return 0; +     }       private int getstash(int mode) {
628:    add(PGFLUSH);    case SENDOUT:;    } -  Thread.MutexKey lock = shortmux->trylock(); -  if (lock && sizeof(this)) { +  if (sizeof(this)) {    PD("%d>Sendcmd %O\n", socket->query_fd(), (string)this); -  output_to(socket); + #if PG_DEBUGHISTORY > 0 +  i->history += ({">>" + (string)this}); +  i->history = i->history[<PG_DEBUGHISTORY - 1 ..]; + #endif +  shuffle->add_source(this); +  shuffle->start(1);    }    } while (0);    started = 0;
752:    error(strerror(socket->errno()) + ".\n");    socket->set_backend(local_backend);    socket->set_buffer_mode(i, 0); -  socket->set_nonblocking(i->read_cb, write_cb, close); +  socket->set_nonblocking(i->read_cb, 0, close); +  (shuffle = shuffler->shuffle(socket))->set_done_callback(done_cb);    if (nossl != 2)    Thread.Thread(pgsqlsess->processloop, this);    return;