FileLocker.smali

.class public final Lcom/facebook/soloader/FileLocker;
.super Ljava/lang/Object;
.source "SourceFile"

# interfaces
.implements Ljava/io/Closeable;


# instance fields
.field private mLock:Ljava/nio/channels/FileLock;

.field private mLockFileOutputStream:Ljava/io/FileOutputStream;


# direct methods
.method private constructor <init>(Ljava/io/File;Z)V
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 1
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 2
    invoke-direct {p0, p1, p2}, Lcom/facebook/soloader/FileLocker;->init(Ljava/io/File;Z)V

    return-void
.end method

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

    .line 1
    new-instance v0, Ljava/io/FileOutputStream;

    invoke-direct {v0, p1}, Ljava/io/FileOutputStream;-><init>(Ljava/io/File;)V

    iput-object v0, p0, Lcom/facebook/soloader/FileLocker;->mLockFileOutputStream:Ljava/io/FileOutputStream;

    if-eqz p2, :cond_14

    .line 2
    :try_start_9
    invoke-virtual {v0}, Ljava/io/FileOutputStream;->getChannel()Ljava/nio/channels/FileChannel;

    move-result-object p1

    invoke-virtual {p1}, Ljava/nio/channels/FileChannel;->tryLock()Ljava/nio/channels/FileLock;

    move-result-object p1
    :try_end_11
    .catch Ljava/io/IOException; {:try_start_9 .. :try_end_11} :catch_12
    .catchall {:try_start_9 .. :try_end_11} :catchall_26

    goto :goto_1c

    :catch_12
    const/4 p1, 0x0

    goto :goto_1c

    .line 3
    :cond_14
    :try_start_14
    invoke-virtual {v0}, Ljava/io/FileOutputStream;->getChannel()Ljava/nio/channels/FileChannel;

    move-result-object p1

    invoke-virtual {p1}, Ljava/nio/channels/FileChannel;->lock()Ljava/nio/channels/FileLock;

    move-result-object p1
    :try_end_1c
    .catchall {:try_start_14 .. :try_end_1c} :catchall_26

    :goto_1c
    if-nez p1, :cond_23

    .line 4
    iget-object p2, p0, Lcom/facebook/soloader/FileLocker;->mLockFileOutputStream:Ljava/io/FileOutputStream;

    invoke-virtual {p2}, Ljava/io/FileOutputStream;->close()V

    .line 5
    :cond_23
    iput-object p1, p0, Lcom/facebook/soloader/FileLocker;->mLock:Ljava/nio/channels/FileLock;

    return-void

    :catchall_26
    move-exception p1

    .line 6
    iget-object p2, p0, Lcom/facebook/soloader/FileLocker;->mLockFileOutputStream:Ljava/io/FileOutputStream;

    invoke-virtual {p2}, Ljava/io/FileOutputStream;->close()V

    .line 7
    throw p1
.end method

.method public static lock(Ljava/io/File;)Lcom/facebook/soloader/FileLocker;
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    new-instance v0, Lcom/facebook/soloader/FileLocker;

    const/4 v1, 0x0

    invoke-direct {v0, p0, v1}, Lcom/facebook/soloader/FileLocker;-><init>(Ljava/io/File;Z)V

    return-object v0
.end method

.method public static tryLock(Ljava/io/File;)Lcom/facebook/soloader/FileLocker;
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 1
    new-instance v0, Lcom/facebook/soloader/FileLocker;

    const/4 v1, 0x1

    invoke-direct {v0, p0, v1}, Lcom/facebook/soloader/FileLocker;-><init>(Ljava/io/File;Z)V

    .line 2
    iget-object p0, v0, Lcom/facebook/soloader/FileLocker;->mLock:Ljava/nio/channels/FileLock;

    if-nez p0, :cond_f

    .line 3
    invoke-virtual {v0}, Lcom/facebook/soloader/FileLocker;->close()V

    const/4 p0, 0x0

    return-object p0

    :cond_f
    return-object v0
.end method


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

    .line 1
    :try_start_0
    iget-object v0, p0, Lcom/facebook/soloader/FileLocker;->mLock:Ljava/nio/channels/FileLock;

    if-eqz v0, :cond_7

    .line 2
    invoke-virtual {v0}, Ljava/nio/channels/FileLock;->release()V
    :try_end_7
    .catchall {:try_start_0 .. :try_end_7} :catchall_d

    .line 3
    :cond_7
    iget-object v0, p0, Lcom/facebook/soloader/FileLocker;->mLockFileOutputStream:Ljava/io/FileOutputStream;

    invoke-virtual {v0}, Ljava/io/FileOutputStream;->close()V

    return-void

    :catchall_d
    move-exception v0

    iget-object v1, p0, Lcom/facebook/soloader/FileLocker;->mLockFileOutputStream:Ljava/io/FileOutputStream;

    invoke-virtual {v1}, Ljava/io/FileOutputStream;->close()V

    .line 4
    throw v0
.end method