Examples with PoolShutdownException reactor.netty.internal.shaded.reactor.pool.PoolShutdownException used on opensource projects

Example 1 with PoolShutdownException

use of reactor.netty.internal.shaded.reactor.pool.PoolShutdownException in project reactor-netty by reactor.

the class Http2Pool method drainLoop.

void drainLoop() {
    recordInteractionTimestamp();
    int maxPending = poolConfig.maxPending();
    for (; ; ) {
        @SuppressWarnings("unchecked") ConcurrentLinkedQueue<Slot> resources = CONNECTIONS.get(this);
        @SuppressWarnings("unchecked") ConcurrentLinkedDeque<Borrower> borrowers = PENDING.get(this);
        if (resources == null || borrowers == TERMINATED) {
            return;
        }
        int borrowersCount = borrowers.size();
        if (borrowersCount != 0) {
            // find a connection that can be used for opening a new stream
            Slot slot = findConnection(resources);
            if (slot != null) {
                Borrower borrower = borrowers.pollFirst();
                if (borrower == null) {
                    resources.offer(slot);
                    continue;
                }
                if (isDisposed()) {
                    borrower.fail(new PoolShutdownException());
                    return;
                }
                if (slot.incrementConcurrencyAndGet() > 1) {
                    borrower.stopPendingCountdown();
                    if (log.isDebugEnabled()) {
                        log.debug(format(slot.connection.channel(), "Channel activated"));
                    }
                    ACQUIRED.incrementAndGet(this);
                    // we are ready here, the connection can be used for opening another stream
                    slot.deactivate();
                    poolConfig.acquisitionScheduler().schedule(() -> borrower.deliver(new Http2PooledRef(slot)));
                } else {
                    borrowers.offerFirst(borrower);
                    continue;
                }
            } else {
                int permits = poolConfig.allocationStrategy().getPermits(1);
                if (permits <= 0) {
                    if (maxPending >= 0) {
                        borrowersCount = borrowers.size();
                        int toCull = borrowersCount - maxPending;
                        for (int i = 0; i < toCull; i++) {
                            Borrower extraneous = borrowers.pollFirst();
                            if (extraneous != null) {
                                pendingAcquireLimitReached(extraneous, maxPending);
                            }
                        }
                    }
                } else {
                    Borrower borrower = borrowers.pollFirst();
                    if (borrower == null) {
                        continue;
                    }
                    if (isDisposed()) {
                        borrower.fail(new PoolShutdownException());
                        return;
                    }
                    borrower.stopPendingCountdown();
                    Mono<Connection> allocator = poolConfig.allocator();
                    Mono<Connection> primary = allocator.doOnEach(sig -> {
                        if (sig.isOnNext()) {
                            Connection newInstance = sig.get();
                            assert newInstance != null;
                            Slot newSlot = new Slot(this, newInstance);
                            if (log.isDebugEnabled()) {
                                log.debug(format(newInstance.channel(), "Channel activated"));
                            }
                            ACQUIRED.incrementAndGet(this);
                            newSlot.incrementConcurrencyAndGet();
                            newSlot.deactivate();
                            borrower.deliver(new Http2PooledRef(newSlot));
                        } else if (sig.isOnError()) {
                            Throwable error = sig.getThrowable();
                            assert error != null;
                            poolConfig.allocationStrategy().returnPermits(1);
                            borrower.fail(error);
                        }
                    }).contextWrite(borrower.currentContext());
                    primary.subscribe(alreadyPropagated -> {
                    }, alreadyPropagatedOrLogged -> drain(), this::drain);
                }
            }
        }
        if (WIP.decrementAndGet(this) == 0) {
            recordInteractionTimestamp();
            break;
        }
    }
}

Example 2 with PoolShutdownException

use of reactor.netty.internal.shaded.reactor.pool.PoolShutdownException in project reactor-netty by reactor.

the class DefaultPooledConnectionProviderTest method testPoolGracefulShutdown.

@ParameterizedTest(name = "{displayName}({argumentsWithNames})")
@ValueSource(booleans = { false, true })
void testPoolGracefulShutdown(boolean enableGracefulShutdown) {
    disposableServer = createServer().handle((req, res) -> res.sendString(Mono.just("testPoolGracefulShutdown").delayElement(Duration.ofMillis(50)))).bindNow();
    ConnectionProvider.Builder providerBuilder = ConnectionProvider.builder("testPoolGracefulShutdown").maxConnections(1);
    if (enableGracefulShutdown) {
        providerBuilder.disposeTimeout(Duration.ofMillis(200));
    }
    ConnectionProvider provider = providerBuilder.build();
    HttpClient client = createClient(provider, disposableServer.port()).doOnDisconnected(conn -> {
        if (!provider.isDisposed()) {
            provider.dispose();
        }
    });
    List<Signal<String>> result = Flux.range(0, 2).flatMap(i -> client.get().uri("/").responseContent().aggregate().asString()).materialize().collectList().block(Duration.ofSeconds(5));
    assertThat(result).isNotNull();
    int onNext = 0;
    int onError = 0;
    for (Signal<String> signal : result) {
        if (signal.isOnNext()) {
            onNext++;
            assertThat(signal.get()).isEqualTo("testPoolGracefulShutdown");
        } else if (signal.getThrowable() instanceof PoolShutdownException) {
            onError++;
        }
    }
    if (enableGracefulShutdown) {
        assertThat(onNext).isEqualTo(2);
        assertThat(onError).isEqualTo(0);
    } else {
        assertThat(onNext).isEqualTo(1);
        assertThat(onError).isEqualTo(1);
    }
}

Example 3 with PoolShutdownException

use of reactor.netty.internal.shaded.reactor.pool.PoolShutdownException in project reactor-netty by reactor.

the class Http2Pool method doAcquire.

void doAcquire(Borrower borrower) {
    if (isDisposed()) {
        borrower.fail(new PoolShutdownException());
        return;
    }
    pendingOffer(borrower);
    drain();
}

Example 4 with PoolShutdownException

use of reactor.netty.internal.shaded.reactor.pool.PoolShutdownException in project reactor-netty by reactor.

the class Http2Pool method disposeLater.

@Override
public Mono<Void> disposeLater() {
    return Mono.defer(() -> {
        recordInteractionTimestamp();
        @SuppressWarnings("unchecked") ConcurrentLinkedDeque<Borrower> q = PENDING.getAndSet(this, TERMINATED);
        if (q != TERMINATED) {
            Borrower p;
            while ((p = q.pollFirst()) != null) {
                p.fail(new PoolShutdownException());
            }
            // the last stream on that connection will release the connection to the parent pool
            // the structure should not contain connections with 0 streams as the last stream on that connection
            // always removes the connection from this pool
            CONNECTIONS.getAndSet(this, null);
        }
        return Mono.empty();
    });
}