PooledByteArrayBufferedInputStream.smali

.class public Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;
.super Ljava/io/InputStream;
.source "PooledByteArrayBufferedInputStream.java"


# static fields
.field private static final TAG:Ljava/lang/String; = "PooledByteInputStream"


# instance fields
.field private mBufferOffset:I

.field private mBufferedSize:I

.field private final mByteArray:[B

.field private mClosed:Z

.field private final mInputStream:Ljava/io/InputStream;

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


# direct methods
.method public constructor <init>(Ljava/io/InputStream;[BLcom/facebook/common/references/ResourceReleaser;)V
    .registers 4
    .annotation system Ldalvik/annotation/MethodParameters;
        accessFlags = {
            0x0,
            0x0,
            0x0
        }
        names = {
            "inputStream",
            "byteArray",
            "resourceReleaser"
        }
    .end annotation

    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(",
            "Ljava/io/InputStream;",
            "[B",
            "Lcom/facebook/common/references/ResourceReleaser<",
            "[B>;)V"
        }
    .end annotation

    .line 46
    invoke-direct {p0}, Ljava/io/InputStream;-><init>()V

    .line 47
    invoke-static {p1}, Lcom/facebook/common/internal/Preconditions;->checkNotNull(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object p1

    check-cast p1, Ljava/io/InputStream;

    iput-object p1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mInputStream:Ljava/io/InputStream;

    .line 48
    invoke-static {p2}, Lcom/facebook/common/internal/Preconditions;->checkNotNull(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object p1

    check-cast p1, [B

    iput-object p1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mByteArray:[B

    .line 49
    invoke-static {p3}, Lcom/facebook/common/internal/Preconditions;->checkNotNull(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object p1

    check-cast p1, Lcom/facebook/common/references/ResourceReleaser;

    iput-object p1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mResourceReleaser:Lcom/facebook/common/references/ResourceReleaser;

    const/4 p1, 0x0

    .line 50
    iput p1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferedSize:I

    .line 51
    iput p1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    .line 52
    iput-boolean p1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mClosed:Z

    return-void
.end method

.method private ensureDataInBuffer()Z
    .registers 4
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 119
    iget v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    iget v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferedSize:I

    const/4 v2, 0x1

    if-ge v0, v1, :cond_8

    return v2

    .line 123
    :cond_8
    iget-object v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mInputStream:Ljava/io/InputStream;

    iget-object v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mByteArray:[B

    invoke-virtual {v0, v1}, Ljava/io/InputStream;->read([B)I

    move-result v0

    const/4 v1, 0x0

    if-gtz v0, :cond_14

    return v1

    .line 128
    :cond_14
    iput v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferedSize:I

    .line 129
    iput v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    return v2
.end method

.method private ensureNotClosed()V
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 134
    iget-boolean v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mClosed:Z

    if-nez v0, :cond_5

    return-void

    .line 135
    :cond_5
    new-instance v0, Ljava/io/IOException;

    const-string v1, "stream already closed"

    invoke-direct {v0, v1}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V

    throw v0
.end method


# virtual methods
.method public available()I
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 82
    iget v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    iget v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferedSize:I

    if-gt v0, v1, :cond_8

    const/4 v0, 0x1

    goto :goto_9

    :cond_8
    const/4 v0, 0x0

    :goto_9
    invoke-static {v0}, Lcom/facebook/common/internal/Preconditions;->checkState(Z)V

    .line 83
    invoke-direct {p0}, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->ensureNotClosed()V

    .line 84
    iget v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferedSize:I

    iget v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    sub-int/2addr v0, v1

    iget-object v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mInputStream:Ljava/io/InputStream;

    invoke-virtual {v1}, Ljava/io/InputStream;->available()I

    move-result v1

    add-int/2addr v0, v1

    return v0
.end method

.method public close()V
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 89
    iget-boolean v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mClosed:Z

    if-nez v0, :cond_11

    const/4 v0, 0x1

    .line 90
    iput-boolean v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mClosed:Z

    .line 91
    iget-object v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mResourceReleaser:Lcom/facebook/common/references/ResourceReleaser;

    iget-object v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mByteArray:[B

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

    .line 92
    invoke-super {p0}, Ljava/io/InputStream;->close()V

    :cond_11
    return-void
.end method

.method protected finalize()V
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Throwable;
        }
    .end annotation

    .line 141
    iget-boolean v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mClosed:Z

    if-nez v0, :cond_e

    const-string v0, "PooledByteInputStream"

    const-string v1, "Finalized without closing"

    .line 142
    invoke-static {v0, v1}, Lcom/facebook/common/logging/FLog;->e(Ljava/lang/String;Ljava/lang/String;)V

    .line 143
    invoke-virtual {p0}, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->close()V

    .line 145
    :cond_e
    invoke-super {p0}, Ljava/lang/Object;->finalize()V

    return-void
.end method

.method public read()I
    .registers 4
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 57
    iget v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    iget v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferedSize:I

    if-gt v0, v1, :cond_8

    const/4 v0, 0x1

    goto :goto_9

    :cond_8
    const/4 v0, 0x0

    :goto_9
    invoke-static {v0}, Lcom/facebook/common/internal/Preconditions;->checkState(Z)V

    .line 58
    invoke-direct {p0}, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->ensureNotClosed()V

    .line 59
    invoke-direct {p0}, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->ensureDataInBuffer()Z

    move-result v0

    if-nez v0, :cond_17

    const/4 v0, -0x1

    return v0

    .line 63
    :cond_17
    iget-object v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mByteArray:[B

    iget v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    add-int/lit8 v2, v1, 0x1

    iput v2, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    aget-byte v0, v0, v1

    and-int/lit16 v0, v0, 0xff

    return v0
.end method

.method public read([BII)I
    .registers 6
    .annotation system Ldalvik/annotation/MethodParameters;
        accessFlags = {
            0x0,
            0x0,
            0x0
        }
        names = {
            "buffer",
            "offset",
            "length"
        }
    .end annotation

    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 68
    iget v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    iget v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferedSize:I

    if-gt v0, v1, :cond_8

    const/4 v0, 0x1

    goto :goto_9

    :cond_8
    const/4 v0, 0x0

    :goto_9
    invoke-static {v0}, Lcom/facebook/common/internal/Preconditions;->checkState(Z)V

    .line 69
    invoke-direct {p0}, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->ensureNotClosed()V

    .line 70
    invoke-direct {p0}, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->ensureDataInBuffer()Z

    move-result v0

    if-nez v0, :cond_17

    const/4 p1, -0x1

    return p1

    .line 74
    :cond_17
    iget v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferedSize:I

    iget v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    sub-int/2addr v0, v1

    invoke-static {v0, p3}, Ljava/lang/Math;->min(II)I

    move-result p3

    .line 75
    iget-object v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mByteArray:[B

    iget v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    invoke-static {v0, v1, p1, p2, p3}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 76
    iget p1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    add-int/2addr p1, p3

    iput p1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    return p3
.end method

.method public skip(J)J
    .registers 8
    .annotation system Ldalvik/annotation/MethodParameters;
        accessFlags = {
            0x0
        }
        names = {
            "byteCount"
        }
    .end annotation

    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 98
    iget v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    iget v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferedSize:I

    if-gt v0, v1, :cond_8

    const/4 v0, 0x1

    goto :goto_9

    :cond_8
    const/4 v0, 0x0

    :goto_9
    invoke-static {v0}, Lcom/facebook/common/internal/Preconditions;->checkState(Z)V

    .line 99
    invoke-direct {p0}, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->ensureNotClosed()V

    .line 100
    iget v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferedSize:I

    iget v1, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    sub-int v2, v0, v1

    int-to-long v2, v2

    cmp-long v4, v2, p1

    if-ltz v4, :cond_20

    int-to-long v0, v1

    add-long/2addr v0, p1

    long-to-int v0, v0

    .line 102
    iput v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    return-wide p1

    .line 106
    :cond_20
    iput v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mBufferOffset:I

    .line 107
    iget-object v0, p0, Lcom/facebook/common/memory/PooledByteArrayBufferedInputStream;->mInputStream:Ljava/io/InputStream;

    sub-long/2addr p1, v2

    invoke-virtual {v0, p1, p2}, Ljava/io/InputStream;->skip(J)J

    move-result-wide p1

    add-long/2addr v2, p1

    return-wide v2
.end method