SharedReference.smali

.class public Lcom/facebook/common/references/SharedReference;
.super Ljava/lang/Object;
.source "SourceFile"


# annotations
.annotation system Ldalvik/annotation/MemberClasses;
    value = {
        Lcom/facebook/common/references/SharedReference$NullReferenceException;
    }
.end annotation

.annotation system Ldalvik/annotation/Signature;
    value = {
        "<T:",
        "Ljava/lang/Object;",
        ">",
        "Ljava/lang/Object;"
    }
.end annotation


# static fields
.field private static final sLiveObjects:Ljava/util/Map;
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "Ljava/util/Map<",
            "Ljava/lang/Object;",
            "Ljava/lang/Integer;",
            ">;"
        }
    .end annotation
.end field


# instance fields
.field private mRefCount:I

.field private final mResourceReleaser:Lcom/facebook/common/references/ResourceReleaser;
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "Lcom/facebook/common/references/ResourceReleaser<",
            "TT;>;"
        }
    .end annotation
.end field

.field private mValue:Ljava/lang/Object;
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "TT;"
        }
    .end annotation
.end field


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

    .line 100
    new-instance v0, Ljava/util/IdentityHashMap;

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

    sput-object v0, Lcom/facebook/common/references/SharedReference;->sLiveObjects:Ljava/util/Map;

    return-void
.end method

.method public constructor <init>(Ljava/lang/Object;Lcom/facebook/common/references/ResourceReleaser;)V
    .registers 4
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(TT;",
            "Lcom/facebook/common/references/ResourceReleaser<",
            "TT;>;)V"
        }
    .end annotation

    .line 116
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 117
    invoke-static {p1}, Lcom/facebook/common/internal/Preconditions;->checkNotNull(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object v0

    iput-object v0, p0, Lcom/facebook/common/references/SharedReference;->mValue:Ljava/lang/Object;

    .line 118
    invoke-static {p2}, Lcom/facebook/common/internal/Preconditions;->checkNotNull(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object p2

    check-cast p2, Lcom/facebook/common/references/ResourceReleaser;

    iput-object p2, p0, Lcom/facebook/common/references/SharedReference;->mResourceReleaser:Lcom/facebook/common/references/ResourceReleaser;

    const/4 p2, 0x1

    .line 119
    iput p2, p0, Lcom/facebook/common/references/SharedReference;->mRefCount:I

    .line 120
    invoke-static {p1}, Lcom/facebook/common/references/SharedReference;->addLiveReference(Ljava/lang/Object;)V

    return-void
.end method

.method private static addLiveReference(Ljava/lang/Object;)V
    .registers 5

    .line 130
    sget-object v0, Lcom/facebook/common/references/SharedReference;->sLiveObjects:Ljava/util/Map;

    monitor-enter v0

    .line 131
    :try_start_3
    sget-object v1, Lcom/facebook/common/references/SharedReference;->sLiveObjects:Ljava/util/Map;

    invoke-interface {v1, p0}, Ljava/util/Map;->get(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object v1

    check-cast v1, Ljava/lang/Integer;

    const/4 v2, 0x1

    if-nez v1, :cond_18

    .line 133
    sget-object v1, Lcom/facebook/common/references/SharedReference;->sLiveObjects:Ljava/util/Map;

    invoke-static {v2}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;

    move-result-object v2

    invoke-interface {v1, p0, v2}, Ljava/util/Map;->put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;

    goto :goto_26

    .line 135
    :cond_18
    sget-object v3, Lcom/facebook/common/references/SharedReference;->sLiveObjects:Ljava/util/Map;

    invoke-virtual {v1}, Ljava/lang/Integer;->intValue()I

    move-result v1

    add-int/2addr v1, v2

    invoke-static {v1}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;

    move-result-object v1

    invoke-interface {v3, p0, v1}, Ljava/util/Map;->put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;

    .line 137
    :goto_26
    monitor-exit v0

    return-void

    :catchall_28
    move-exception p0

    monitor-exit v0
    :try_end_2a
    .catchall {:try_start_3 .. :try_end_2a} :catchall_28

    throw p0
.end method

.method private declared-synchronized decreaseRefCount()I
    .registers 3

    monitor-enter p0

    .line 226
    :try_start_1
    invoke-direct {p0}, Lcom/facebook/common/references/SharedReference;->ensureValid()V

    .line 227
    iget v0, p0, Lcom/facebook/common/references/SharedReference;->mRefCount:I

    const/4 v1, 0x1

    if-lez v0, :cond_b

    const/4 v0, 0x1

    goto :goto_c

    :cond_b
    const/4 v0, 0x0

    :goto_c
    invoke-static {v0}, Lcom/facebook/common/internal/Preconditions;->checkArgument(Z)V

    .line 229
    iget v0, p0, Lcom/facebook/common/references/SharedReference;->mRefCount:I

    sub-int/2addr v0, v1

    iput v0, p0, Lcom/facebook/common/references/SharedReference;->mRefCount:I
    :try_end_14
    .catchall {:try_start_1 .. :try_end_14} :catchall_16

    .line 230
    monitor-exit p0

    return v0

    :catchall_16
    move-exception v0

    monitor-exit p0

    throw v0
.end method

.method private ensureValid()V
    .registers 2

    .line 238
    invoke-static {p0}, Lcom/facebook/common/references/SharedReference;->isValid(Lcom/facebook/common/references/SharedReference;)Z

    move-result v0

    if-eqz v0, :cond_7

    return-void

    .line 239
    :cond_7
    new-instance v0, Lcom/facebook/common/references/SharedReference$NullReferenceException;

    invoke-direct {v0}, Lcom/facebook/common/references/SharedReference$NullReferenceException;-><init>()V

    throw v0
.end method

.method public static isValid(Lcom/facebook/common/references/SharedReference;)Z
    .registers 1
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(",
            "Lcom/facebook/common/references/SharedReference<",
            "*>;)Z"
        }
    .end annotation

    if-eqz p0, :cond_a

    .line 184
    invoke-virtual {p0}, Lcom/facebook/common/references/SharedReference;->isValid()Z

    move-result p0

    if-eqz p0, :cond_a

    const/4 p0, 0x1

    return p0

    :cond_a
    const/4 p0, 0x0

    return p0
.end method

.method private static removeLiveReference(Ljava/lang/Object;)V
    .registers 6

    .line 147
    sget-object v0, Lcom/facebook/common/references/SharedReference;->sLiveObjects:Ljava/util/Map;

    monitor-enter v0

    .line 148
    :try_start_3
    sget-object v1, Lcom/facebook/common/references/SharedReference;->sLiveObjects:Ljava/util/Map;

    invoke-interface {v1, p0}, Ljava/util/Map;->get(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object v1

    check-cast v1, Ljava/lang/Integer;

    const/4 v2, 0x1

    if-nez v1, :cond_1f

    const-string v1, "SharedReference"

    const-string v3, "No entry in sLiveObjects for value of type %s"

    new-array v2, v2, [Ljava/lang/Object;

    const/4 v4, 0x0

    .line 154
    invoke-virtual {p0}, Ljava/lang/Object;->getClass()Ljava/lang/Class;

    move-result-object p0

    aput-object p0, v2, v4

    .line 151
    invoke-static {v1, v3, v2}, Lcom/facebook/common/logging/FLog;->wtf(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)V

    goto :goto_39

    .line 155
    :cond_1f
    invoke-virtual {v1}, Ljava/lang/Integer;->intValue()I

    move-result v3

    if-ne v3, v2, :cond_2b

    .line 156
    sget-object v1, Lcom/facebook/common/references/SharedReference;->sLiveObjects:Ljava/util/Map;

    invoke-interface {v1, p0}, Ljava/util/Map;->remove(Ljava/lang/Object;)Ljava/lang/Object;

    goto :goto_39

    .line 158
    :cond_2b
    sget-object v3, Lcom/facebook/common/references/SharedReference;->sLiveObjects:Ljava/util/Map;

    invoke-virtual {v1}, Ljava/lang/Integer;->intValue()I

    move-result v1

    sub-int/2addr v1, v2

    invoke-static {v1}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;

    move-result-object v1

    invoke-interface {v3, p0, v1}, Ljava/util/Map;->put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;

    .line 160
    :goto_39
    monitor-exit v0

    return-void

    :catchall_3b
    move-exception p0

    monitor-exit v0
    :try_end_3d
    .catchall {:try_start_3 .. :try_end_3d} :catchall_3b

    throw p0
.end method


# virtual methods
.method public declared-synchronized addReference()V
    .registers 2

    monitor-enter p0

    .line 192
    :try_start_1
    invoke-direct {p0}, Lcom/facebook/common/references/SharedReference;->ensureValid()V

    .line 193
    iget v0, p0, Lcom/facebook/common/references/SharedReference;->mRefCount:I

    add-int/lit8 v0, v0, 0x1

    iput v0, p0, Lcom/facebook/common/references/SharedReference;->mRefCount:I
    :try_end_a
    .catchall {:try_start_1 .. :try_end_a} :catchall_c

    .line 194
    monitor-exit p0

    return-void

    :catchall_c
    move-exception v0

    monitor-exit p0

    throw v0
.end method

.method public declared-synchronized addReferenceIfValid()Z
    .registers 2

    monitor-enter p0

    .line 198
    :try_start_1
    invoke-virtual {p0}, Lcom/facebook/common/references/SharedReference;->isValid()Z

    move-result v0

    if-eqz v0, :cond_d

    .line 199
    invoke-virtual {p0}, Lcom/facebook/common/references/SharedReference;->addReference()V
    :try_end_a
    .catchall {:try_start_1 .. :try_end_a} :catchall_10

    const/4 v0, 0x1

    .line 200
    monitor-exit p0

    return v0

    :cond_d
    const/4 v0, 0x0

    .line 202
    monitor-exit p0

    return v0

    :catchall_10
    move-exception v0

    monitor-exit p0

    throw v0
.end method

.method public deleteReference()V
    .registers 3

    .line 210
    invoke-direct {p0}, Lcom/facebook/common/references/SharedReference;->decreaseRefCount()I

    move-result v0

    if-nez v0, :cond_19

    .line 212
    monitor-enter p0

    .line 213
    :try_start_7
    iget-object v0, p0, Lcom/facebook/common/references/SharedReference;->mValue:Ljava/lang/Object;

    const/4 v1, 0x0

    .line 214
    iput-object v1, p0, Lcom/facebook/common/references/SharedReference;->mValue:Ljava/lang/Object;

    .line 215
    monitor-exit p0
    :try_end_d
    .catchall {:try_start_7 .. :try_end_d} :catchall_16

    .line 216
    iget-object v1, p0, Lcom/facebook/common/references/SharedReference;->mResourceReleaser:Lcom/facebook/common/references/ResourceReleaser;

    invoke-interface {v1, v0}, Lcom/facebook/common/references/ResourceReleaser;->release(Ljava/lang/Object;)V

    .line 217
    invoke-static {v0}, Lcom/facebook/common/references/SharedReference;->removeLiveReference(Ljava/lang/Object;)V

    goto :goto_19

    :catchall_16
    move-exception v0

    .line 215
    :try_start_17
    monitor-exit p0
    :try_end_18
    .catchall {:try_start_17 .. :try_end_18} :catchall_16

    throw v0

    :cond_19
    :goto_19
    return-void
.end method

.method public declared-synchronized get()Ljava/lang/Object;
    .registers 2
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "()TT;"
        }
    .end annotation

    monitor-enter p0

    .line 168
    :try_start_1
    iget-object v0, p0, Lcom/facebook/common/references/SharedReference;->mValue:Ljava/lang/Object;
    :try_end_3
    .catchall {:try_start_1 .. :try_end_3} :catchall_5

    monitor-exit p0

    return-object v0

    :catchall_5
    move-exception v0

    monitor-exit p0

    throw v0
.end method

.method public declared-synchronized getRefCountTestOnly()I
    .registers 2

    monitor-enter p0

    .line 248
    :try_start_1
    iget v0, p0, Lcom/facebook/common/references/SharedReference;->mRefCount:I
    :try_end_3
    .catchall {:try_start_1 .. :try_end_3} :catchall_5

    monitor-exit p0

    return v0

    :catchall_5
    move-exception v0

    monitor-exit p0

    throw v0
.end method

.method public declared-synchronized isValid()Z
    .registers 2

    monitor-enter p0

    .line 176
    :try_start_1
    iget v0, p0, Lcom/facebook/common/references/SharedReference;->mRefCount:I
    :try_end_3
    .catchall {:try_start_1 .. :try_end_3} :catchall_a

    if-lez v0, :cond_8

    const/4 v0, 0x1

    :goto_6
    monitor-exit p0

    return v0

    :cond_8
    const/4 v0, 0x0

    goto :goto_6

    :catchall_a
    move-exception v0

    monitor-exit p0

    goto :goto_e

    :goto_d
    throw v0

    :goto_e
    goto :goto_d
.end method