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.class public final Lokio/GzipSource;
.super Ljava/lang/Object;
.source "GzipSource.java"
# interfaces
.implements Lokio/Source;
# static fields
.field private static final FCOMMENT:B = 0x4t
.field private static final FEXTRA:B = 0x2t
.field private static final FHCRC:B = 0x1t
.field private static final FNAME:B = 0x3t
.field private static final SECTION_BODY:B = 0x1t
.field private static final SECTION_DONE:B = 0x3t
.field private static final SECTION_HEADER:B = 0x0t
.field private static final SECTION_TRAILER:B = 0x2t
# instance fields
.field private final crc:Ljava/util/zip/CRC32;
.field private final inflater:Ljava/util/zip/Inflater;
.field private final inflaterSource:Lokio/InflaterSource;
.field private section:I
.field private final source:Lokio/BufferedSource;
# direct methods
.method public constructor <init>(Lokio/Source;)V
.locals 3
.prologue
.line 60
invoke-direct {p0}, Ljava/lang/Object;-><init>()V
.line 39
const/4 v0, 0x0
iput v0, p0, Lokio/GzipSource;->section:I
.line 58
new-instance v0, Ljava/util/zip/CRC32;
invoke-direct {v0}, Ljava/util/zip/CRC32;-><init>()V
iput-object v0, p0, Lokio/GzipSource;->crc:Ljava/util/zip/CRC32;
.line 61
if-nez p1, :cond_0
new-instance v0, Ljava/lang/IllegalArgumentException;
const-string v1, "source == null"
invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
throw v0
.line 62
:cond_0
new-instance v0, Ljava/util/zip/Inflater;
const/4 v1, 0x1
invoke-direct {v0, v1}, Ljava/util/zip/Inflater;-><init>(Z)V
iput-object v0, p0, Lokio/GzipSource;->inflater:Ljava/util/zip/Inflater;
.line 63
invoke-static {p1}, Lokio/Okio;->buffer(Lokio/Source;)Lokio/BufferedSource;
move-result-object v0
iput-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
.line 64
new-instance v0, Lokio/InflaterSource;
iget-object v1, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
iget-object v2, p0, Lokio/GzipSource;->inflater:Ljava/util/zip/Inflater;
invoke-direct {v0, v1, v2}, Lokio/InflaterSource;-><init>(Lokio/BufferedSource;Ljava/util/zip/Inflater;)V
iput-object v0, p0, Lokio/GzipSource;->inflaterSource:Lokio/InflaterSource;
.line 65
return-void
.end method
.method private checkEqual(Ljava/lang/String;II)V
.locals 5
.prologue
.line 204
if-eq p3, p2, :cond_0
.line 205
new-instance v0, Ljava/io/IOException;
const-string v1, "%s: actual 0x%08x != expected 0x%08x"
const/4 v2, 0x3
new-array v2, v2, [Ljava/lang/Object;
const/4 v3, 0x0
aput-object p1, v2, v3
const/4 v3, 0x1
.line 206
invoke-static {p3}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;
move-result-object v4
aput-object v4, v2, v3
const/4 v3, 0x2
invoke-static {p2}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;
move-result-object v4
aput-object v4, v2, v3
.line 205
invoke-static {v1, v2}, Ljava/lang/String;->format(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
move-result-object v1
invoke-direct {v0, v1}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V
throw v0
.line 208
:cond_0
return-void
.end method
.method private consumeHeader()V
.locals 10
.prologue
.line 114
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
const-wide/16 v2, 0xa
invoke-interface {v0, v2, v3}, Lokio/BufferedSource;->require(J)V
.line 115
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v0}, Lokio/BufferedSource;->buffer()Lokio/Buffer;
move-result-object v0
const-wide/16 v2, 0x3
invoke-virtual {v0, v2, v3}, Lokio/Buffer;->getByte(J)B
move-result v7
.line 116
shr-int/lit8 v0, v7, 0x1
and-int/lit8 v0, v0, 0x1
const/4 v1, 0x1
if-ne v0, v1, :cond_4
const/4 v0, 0x1
move v6, v0
.line 117
:goto_0
if-eqz v6, :cond_0
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v0}, Lokio/BufferedSource;->buffer()Lokio/Buffer;
move-result-object v1
const-wide/16 v2, 0x0
const-wide/16 v4, 0xa
move-object v0, p0
invoke-direct/range {v0 .. v5}, Lokio/GzipSource;->updateCrc(Lokio/Buffer;JJ)V
.line 119
:cond_0
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v0}, Lokio/BufferedSource;->readShort()S
move-result v0
.line 120
const-string v1, "ID1ID2"
const/16 v2, 0x1f8b
invoke-direct {p0, v1, v2, v0}, Lokio/GzipSource;->checkEqual(Ljava/lang/String;II)V
.line 121
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
const-wide/16 v2, 0x8
invoke-interface {v0, v2, v3}, Lokio/BufferedSource;->skip(J)V
.line 127
shr-int/lit8 v0, v7, 0x2
and-int/lit8 v0, v0, 0x1
const/4 v1, 0x1
if-ne v0, v1, :cond_3
.line 128
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
const-wide/16 v2, 0x2
invoke-interface {v0, v2, v3}, Lokio/BufferedSource;->require(J)V
.line 129
if-eqz v6, :cond_1
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v0}, Lokio/BufferedSource;->buffer()Lokio/Buffer;
move-result-object v1
const-wide/16 v2, 0x0
const-wide/16 v4, 0x2
move-object v0, p0
invoke-direct/range {v0 .. v5}, Lokio/GzipSource;->updateCrc(Lokio/Buffer;JJ)V
.line 130
:cond_1
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v0}, Lokio/BufferedSource;->buffer()Lokio/Buffer;
move-result-object v0
invoke-virtual {v0}, Lokio/Buffer;->readShortLe()S
move-result v8
.line 131
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
int-to-long v2, v8
invoke-interface {v0, v2, v3}, Lokio/BufferedSource;->require(J)V
.line 132
if-eqz v6, :cond_2
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v0}, Lokio/BufferedSource;->buffer()Lokio/Buffer;
move-result-object v1
const-wide/16 v2, 0x0
int-to-long v4, v8
move-object v0, p0
invoke-direct/range {v0 .. v5}, Lokio/GzipSource;->updateCrc(Lokio/Buffer;JJ)V
.line 133
:cond_2
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
int-to-long v2, v8
invoke-interface {v0, v2, v3}, Lokio/BufferedSource;->skip(J)V
.line 140
:cond_3
shr-int/lit8 v0, v7, 0x3
and-int/lit8 v0, v0, 0x1
const/4 v1, 0x1
if-ne v0, v1, :cond_7
.line 141
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
const/4 v1, 0x0
invoke-interface {v0, v1}, Lokio/BufferedSource;->indexOf(B)J
move-result-wide v8
.line 142
const-wide/16 v0, -0x1
cmp-long v0, v8, v0
if-nez v0, :cond_5
new-instance v0, Ljava/io/EOFException;
invoke-direct {v0}, Ljava/io/EOFException;-><init>()V
throw v0
.line 116
:cond_4
const/4 v0, 0x0
move v6, v0
goto/16 :goto_0
.line 143
:cond_5
if-eqz v6, :cond_6
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v0}, Lokio/BufferedSource;->buffer()Lokio/Buffer;
move-result-object v1
const-wide/16 v2, 0x0
const-wide/16 v4, 0x1
add-long/2addr v4, v8
move-object v0, p0
invoke-direct/range {v0 .. v5}, Lokio/GzipSource;->updateCrc(Lokio/Buffer;JJ)V
.line 144
:cond_6
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
const-wide/16 v2, 0x1
add-long/2addr v2, v8
invoke-interface {v0, v2, v3}, Lokio/BufferedSource;->skip(J)V
.line 151
:cond_7
shr-int/lit8 v0, v7, 0x4
and-int/lit8 v0, v0, 0x1
const/4 v1, 0x1
if-ne v0, v1, :cond_a
.line 152
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
const/4 v1, 0x0
invoke-interface {v0, v1}, Lokio/BufferedSource;->indexOf(B)J
move-result-wide v8
.line 153
const-wide/16 v0, -0x1
cmp-long v0, v8, v0
if-nez v0, :cond_8
new-instance v0, Ljava/io/EOFException;
invoke-direct {v0}, Ljava/io/EOFException;-><init>()V
throw v0
.line 154
:cond_8
if-eqz v6, :cond_9
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v0}, Lokio/BufferedSource;->buffer()Lokio/Buffer;
move-result-object v1
const-wide/16 v2, 0x0
const-wide/16 v4, 0x1
add-long/2addr v4, v8
move-object v0, p0
invoke-direct/range {v0 .. v5}, Lokio/GzipSource;->updateCrc(Lokio/Buffer;JJ)V
.line 155
:cond_9
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
const-wide/16 v2, 0x1
add-long/2addr v2, v8
invoke-interface {v0, v2, v3}, Lokio/BufferedSource;->skip(J)V
.line 162
:cond_a
if-eqz v6, :cond_b
.line 163
const-string v0, "FHCRC"
iget-object v1, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v1}, Lokio/BufferedSource;->readShortLe()S
move-result v1
iget-object v2, p0, Lokio/GzipSource;->crc:Ljava/util/zip/CRC32;
invoke-virtual {v2}, Ljava/util/zip/CRC32;->getValue()J
move-result-wide v2
long-to-int v2, v2
int-to-short v2, v2
invoke-direct {p0, v0, v1, v2}, Lokio/GzipSource;->checkEqual(Ljava/lang/String;II)V
.line 164
iget-object v0, p0, Lokio/GzipSource;->crc:Ljava/util/zip/CRC32;
invoke-virtual {v0}, Ljava/util/zip/CRC32;->reset()V
.line 166
:cond_b
return-void
.end method
.method private consumeTrailer()V
.locals 4
.prologue
.line 173
const-string v0, "CRC"
iget-object v1, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v1}, Lokio/BufferedSource;->readIntLe()I
move-result v1
iget-object v2, p0, Lokio/GzipSource;->crc:Ljava/util/zip/CRC32;
invoke-virtual {v2}, Ljava/util/zip/CRC32;->getValue()J
move-result-wide v2
long-to-int v2, v2
invoke-direct {p0, v0, v1, v2}, Lokio/GzipSource;->checkEqual(Ljava/lang/String;II)V
.line 174
const-string v0, "ISIZE"
iget-object v1, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v1}, Lokio/BufferedSource;->readIntLe()I
move-result v1
iget-object v2, p0, Lokio/GzipSource;->inflater:Ljava/util/zip/Inflater;
invoke-virtual {v2}, Ljava/util/zip/Inflater;->getTotalOut()I
move-result v2
invoke-direct {p0, v0, v1, v2}, Lokio/GzipSource;->checkEqual(Ljava/lang/String;II)V
.line 175
return-void
.end method
.method private updateCrc(Lokio/Buffer;JJ)V
.locals 8
.prologue
const-wide/16 v2, 0x0
.line 188
iget-object v0, p1, Lokio/Buffer;->head:Lokio/Segment;
.line 189
:goto_0
iget v1, v0, Lokio/Segment;->limit:I
iget v4, v0, Lokio/Segment;->pos:I
sub-int/2addr v1, v4
int-to-long v4, v1
cmp-long v1, p2, v4
if-ltz v1, :cond_0
.line 190
iget v1, v0, Lokio/Segment;->limit:I
iget v4, v0, Lokio/Segment;->pos:I
sub-int/2addr v1, v4
int-to-long v4, v1
sub-long/2addr p2, v4
.line 189
iget-object v0, v0, Lokio/Segment;->next:Lokio/Segment;
goto :goto_0
.line 194
:cond_0
:goto_1
cmp-long v1, p4, v2
if-lez v1, :cond_1
.line 195
iget v1, v0, Lokio/Segment;->pos:I
int-to-long v4, v1
add-long/2addr v4, p2
long-to-int v1, v4
.line 196
iget v4, v0, Lokio/Segment;->limit:I
sub-int/2addr v4, v1
int-to-long v4, v4
invoke-static {v4, v5, p4, p5}, Ljava/lang/Math;->min(JJ)J
move-result-wide v4
long-to-int v4, v4
.line 197
iget-object v5, p0, Lokio/GzipSource;->crc:Ljava/util/zip/CRC32;
iget-object v6, v0, Lokio/Segment;->data:[B
invoke-virtual {v5, v6, v1, v4}, Ljava/util/zip/CRC32;->update([BII)V
.line 198
int-to-long v4, v4
sub-long/2addr p4, v4
.line 194
iget-object v0, v0, Lokio/Segment;->next:Lokio/Segment;
move-wide p2, v2
goto :goto_1
.line 201
:cond_1
return-void
.end method
# virtual methods
.method public close()V
.locals 1
.prologue
.line 182
iget-object v0, p0, Lokio/GzipSource;->inflaterSource:Lokio/InflaterSource;
invoke-virtual {v0}, Lokio/InflaterSource;->close()V
.line 183
return-void
.end method
.method public read(Lokio/Buffer;J)J
.locals 8
.prologue
const-wide/16 v0, -0x1
const/4 v7, 0x2
const/4 v3, 0x1
const-wide/16 v4, 0x0
.line 68
cmp-long v2, p2, v4
if-gez v2, :cond_0
new-instance v0, Ljava/lang/IllegalArgumentException;
new-instance v1, Ljava/lang/StringBuilder;
invoke-direct {v1}, Ljava/lang/StringBuilder;-><init>()V
const-string v2, "byteCount < 0: "
invoke-virtual {v1, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;
move-result-object v1
invoke-virtual {v1, p2, p3}, Ljava/lang/StringBuilder;->append(J)Ljava/lang/StringBuilder;
move-result-object v1
invoke-virtual {v1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;
move-result-object v1
invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
throw v0
.line 69
:cond_0
cmp-long v2, p2, v4
if-nez v2, :cond_1
.line 104
:goto_0
return-wide v4
.line 72
:cond_1
iget v2, p0, Lokio/GzipSource;->section:I
if-nez v2, :cond_2
.line 73
invoke-direct {p0}, Lokio/GzipSource;->consumeHeader()V
.line 74
iput v3, p0, Lokio/GzipSource;->section:I
.line 78
:cond_2
iget v2, p0, Lokio/GzipSource;->section:I
if-ne v2, v3, :cond_4
.line 79
iget-wide v2, p1, Lokio/Buffer;->size:J
.line 80
iget-object v4, p0, Lokio/GzipSource;->inflaterSource:Lokio/InflaterSource;
invoke-virtual {v4, p1, p2, p3}, Lokio/InflaterSource;->read(Lokio/Buffer;J)J
move-result-wide v4
.line 81
cmp-long v6, v4, v0
if-eqz v6, :cond_3
move-object v0, p0
move-object v1, p1
.line 82
invoke-direct/range {v0 .. v5}, Lokio/GzipSource;->updateCrc(Lokio/Buffer;JJ)V
goto :goto_0
.line 85
:cond_3
iput v7, p0, Lokio/GzipSource;->section:I
.line 91
:cond_4
iget v2, p0, Lokio/GzipSource;->section:I
if-ne v2, v7, :cond_5
.line 92
invoke-direct {p0}, Lokio/GzipSource;->consumeTrailer()V
.line 93
const/4 v2, 0x3
iput v2, p0, Lokio/GzipSource;->section:I
.line 99
iget-object v2, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v2}, Lokio/BufferedSource;->exhausted()Z
move-result v2
if-nez v2, :cond_5
.line 100
new-instance v0, Ljava/io/IOException;
const-string v1, "gzip finished without exhausting source"
invoke-direct {v0, v1}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V
throw v0
:cond_5
move-wide v4, v0
.line 104
goto :goto_0
.end method
.method public timeout()Lokio/Timeout;
.locals 1
.prologue
.line 178
iget-object v0, p0, Lokio/GzipSource;->source:Lokio/BufferedSource;
invoke-interface {v0}, Lokio/BufferedSource;->timeout()Lokio/Timeout;
move-result-object v0
return-object v0
.end method