QueuedValueProducer.smali

.class public final Lrx/internal/producers/QueuedValueProducer;
.super Ljava/util/concurrent/atomic/AtomicLong;
.source "QueuedValueProducer.java"

# interfaces
.implements Lrx/Producer;


# annotations
.annotation system Ldalvik/annotation/Signature;
    value = {
        "<T:",
        "Ljava/lang/Object;",
        ">",
        "Ljava/util/concurrent/atomic/AtomicLong;",
        "Lrx/Producer;"
    }
.end annotation


# static fields
.field static final NULL_SENTINEL:Ljava/lang/Object;

.field private static final serialVersionUID:J = 0x64fd87a3da19de97L


# instance fields
.field final child:Lrx/Subscriber;
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "Lrx/Subscriber<",
            "-TT;>;"
        }
    .end annotation
.end field

.field final queue:Ljava/util/Queue;
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "Ljava/util/Queue<",
            "Ljava/lang/Object;",
            ">;"
        }
    .end annotation
.end field

.field final wip:Ljava/util/concurrent/atomic/AtomicInteger;


# direct methods
.method static constructor <clinit>()V
    .registers 1

    .line 1
    new-instance v0, Ljava/lang/Object;

    invoke-direct {v0}, Ljava/lang/Object;-><init>()V

    sput-object v0, Lrx/internal/producers/QueuedValueProducer;->NULL_SENTINEL:Ljava/lang/Object;

    return-void
.end method

.method public constructor <init>(Lrx/Subscriber;)V
    .registers 3
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(",
            "Lrx/Subscriber<",
            "-TT;>;)V"
        }
    .end annotation

    .line 1
    invoke-static {}, Lrx/internal/util/unsafe/UnsafeAccess;->isUnsafeAvailable()Z

    move-result v0

    if-eqz v0, :cond_c

    new-instance v0, Lrx/internal/util/unsafe/SpscLinkedQueue;

    invoke-direct {v0}, Lrx/internal/util/unsafe/SpscLinkedQueue;-><init>()V

    goto :goto_11

    :cond_c
    new-instance v0, Lrx/internal/util/atomic/SpscLinkedAtomicQueue;

    invoke-direct {v0}, Lrx/internal/util/atomic/SpscLinkedAtomicQueue;-><init>()V

    :goto_11
    invoke-direct {p0, p1, v0}, Lrx/internal/producers/QueuedValueProducer;-><init>(Lrx/Subscriber;Ljava/util/Queue;)V

    return-void
.end method

.method public constructor <init>(Lrx/Subscriber;Ljava/util/Queue;)V
    .registers 3
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(",
            "Lrx/Subscriber<",
            "-TT;>;",
            "Ljava/util/Queue<",
            "Ljava/lang/Object;",
            ">;)V"
        }
    .end annotation

    .line 2
    invoke-direct {p0}, Ljava/util/concurrent/atomic/AtomicLong;-><init>()V

    .line 3
    iput-object p1, p0, Lrx/internal/producers/QueuedValueProducer;->child:Lrx/Subscriber;

    .line 4
    iput-object p2, p0, Lrx/internal/producers/QueuedValueProducer;->queue:Ljava/util/Queue;

    .line 5
    new-instance p1, Ljava/util/concurrent/atomic/AtomicInteger;

    invoke-direct {p1}, Ljava/util/concurrent/atomic/AtomicInteger;-><init>()V

    iput-object p1, p0, Lrx/internal/producers/QueuedValueProducer;->wip:Ljava/util/concurrent/atomic/AtomicInteger;

    return-void
.end method

.method private drain()V
    .registers 12

    .line 1
    iget-object v0, p0, Lrx/internal/producers/QueuedValueProducer;->wip:Ljava/util/concurrent/atomic/AtomicInteger;

    invoke-virtual {v0}, Ljava/util/concurrent/atomic/AtomicInteger;->getAndIncrement()I

    move-result v0

    if-nez v0, :cond_6a

    .line 2
    iget-object v0, p0, Lrx/internal/producers/QueuedValueProducer;->child:Lrx/Subscriber;

    .line 3
    iget-object v1, p0, Lrx/internal/producers/QueuedValueProducer;->queue:Ljava/util/Queue;

    .line 4
    :cond_c
    invoke-virtual {v0}, Lrx/Subscriber;->isUnsubscribed()Z

    move-result v2

    if-eqz v2, :cond_13

    return-void

    .line 5
    :cond_13
    iget-object v2, p0, Lrx/internal/producers/QueuedValueProducer;->wip:Ljava/util/concurrent/atomic/AtomicInteger;

    const/4 v3, 0x1

    invoke-virtual {v2, v3}, Ljava/util/concurrent/atomic/AtomicInteger;->lazySet(I)V

    .line 6
    invoke-virtual {p0}, Ljava/util/concurrent/atomic/AtomicLong;->get()J

    move-result-wide v2

    const-wide/16 v4, 0x0

    move-wide v6, v4

    :goto_20
    cmp-long v8, v2, v4

    if-eqz v8, :cond_4d

    .line 7
    invoke-interface {v1}, Ljava/util/Queue;->poll()Ljava/lang/Object;

    move-result-object v8

    if-eqz v8, :cond_4d

    const/4 v9, 0x0

    .line 8
    :try_start_2b
    sget-object v10, Lrx/internal/producers/QueuedValueProducer;->NULL_SENTINEL:Ljava/lang/Object;

    if-ne v8, v10, :cond_33

    .line 9
    invoke-interface {v0, v9}, Lrx/Observer;->onNext(Ljava/lang/Object;)V

    goto :goto_36

    .line 10
    :cond_33
    invoke-interface {v0, v8}, Lrx/Observer;->onNext(Ljava/lang/Object;)V
    :try_end_36
    .catch Ljava/lang/Throwable; {:try_start_2b .. :try_end_36} :catch_42

    .line 11
    :goto_36
    invoke-virtual {v0}, Lrx/Subscriber;->isUnsubscribed()Z

    move-result v8

    if-eqz v8, :cond_3d

    return-void

    :cond_3d
    const-wide/16 v8, 0x1

    sub-long/2addr v2, v8

    add-long/2addr v6, v8

    goto :goto_20

    :catch_42
    move-exception v1

    .line 12
    sget-object v2, Lrx/internal/producers/QueuedValueProducer;->NULL_SENTINEL:Ljava/lang/Object;

    if-eq v8, v2, :cond_48

    goto :goto_49

    :cond_48
    move-object v8, v9

    :goto_49
    invoke-static {v1, v0, v8}, Lrx/exceptions/Exceptions;->throwOrReport(Ljava/lang/Throwable;Lrx/Observer;Ljava/lang/Object;)V

    return-void

    :cond_4d
    cmp-long v2, v6, v4

    if-eqz v2, :cond_62

    .line 13
    invoke-virtual {p0}, Ljava/util/concurrent/atomic/AtomicLong;->get()J

    move-result-wide v2

    const-wide v4, 0x7fffffffffffffffL

    cmp-long v8, v2, v4

    if-eqz v8, :cond_62

    neg-long v2, v6

    .line 14
    invoke-virtual {p0, v2, v3}, Ljava/util/concurrent/atomic/AtomicLong;->addAndGet(J)J

    .line 15
    :cond_62
    iget-object v2, p0, Lrx/internal/producers/QueuedValueProducer;->wip:Ljava/util/concurrent/atomic/AtomicInteger;

    invoke-virtual {v2}, Ljava/util/concurrent/atomic/AtomicInteger;->decrementAndGet()I

    move-result v2

    if-nez v2, :cond_c

    :cond_6a
    return-void
.end method


# virtual methods
.method public offer(Ljava/lang/Object;)Z
    .registers 4
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(TT;)Z"
        }
    .end annotation

    const/4 v0, 0x0

    if-nez p1, :cond_e

    .line 1
    iget-object p1, p0, Lrx/internal/producers/QueuedValueProducer;->queue:Ljava/util/Queue;

    sget-object v1, Lrx/internal/producers/QueuedValueProducer;->NULL_SENTINEL:Ljava/lang/Object;

    invoke-interface {p1, v1}, Ljava/util/Queue;->offer(Ljava/lang/Object;)Z

    move-result p1

    if-nez p1, :cond_17

    return v0

    .line 2
    :cond_e
    iget-object v1, p0, Lrx/internal/producers/QueuedValueProducer;->queue:Ljava/util/Queue;

    invoke-interface {v1, p1}, Ljava/util/Queue;->offer(Ljava/lang/Object;)Z

    move-result p1

    if-nez p1, :cond_17

    return v0

    .line 3
    :cond_17
    invoke-direct {p0}, Lrx/internal/producers/QueuedValueProducer;->drain()V

    const/4 p1, 0x1

    return p1
.end method

.method public request(J)V
    .registers 6

    const-wide/16 v0, 0x0

    cmp-long v2, p1, v0

    if-ltz v2, :cond_11

    cmp-long v2, p1, v0

    if-lez v2, :cond_10

    .line 1
    invoke-static {p0, p1, p2}, Lrx/internal/operators/BackpressureUtils;->getAndAddRequest(Ljava/util/concurrent/atomic/AtomicLong;J)J

    .line 2
    invoke-direct {p0}, Lrx/internal/producers/QueuedValueProducer;->drain()V

    :cond_10
    return-void

    .line 3
    :cond_11
    new-instance p1, Ljava/lang/IllegalArgumentException;

    const-string p2, "n >= 0 required"

    invoke-direct {p1, p2}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V

    throw p1
.end method