AsynchronousFileChannel.Lock Method

Definition

Overloads

Lock()

Acquires an exclusive lock on this channel's file.

Lock(Object, ICompletionHandler)

Acquires an exclusive lock on this channel's file.

Lock(Int64, Int64, Boolean)

Acquires a lock on the given region of this channel's file.

Lock(Int64, Int64, Boolean, Object, ICompletionHandler)

Acquires a lock on the given region of this channel's file.

Lock()

Acquires an exclusive lock on this channel's file.

[Android.Runtime.Register("lock", "()Ljava/util/concurrent/Future;", "", ApiSince=26)]
public Java.Util.Concurrent.IFuture? Lock ();
[<Android.Runtime.Register("lock", "()Ljava/util/concurrent/Future;", "", ApiSince=26)>]
member this.Lock : unit -> Java.Util.Concurrent.IFuture

Returns

IFuture

a Future object representing the pending result

Attributes

Remarks

Java documentation for java.nio.channels.AsynchronousFileChannel.lock().

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

Lock(Object, ICompletionHandler)

Acquires an exclusive lock on this channel's file.

[Android.Runtime.Register("lock", "(Ljava/lang/Object;Ljava/nio/channels/CompletionHandler;)V", "", ApiSince=26)]
[Java.Interop.JavaTypeParameters(new System.String[] { "A" })]
public void Lock (Java.Lang.Object? attachment, Java.Nio.Channels.ICompletionHandler? handler);
[<Android.Runtime.Register("lock", "(Ljava/lang/Object;Ljava/nio/channels/CompletionHandler;)V", "", ApiSince=26)>]
[<Java.Interop.JavaTypeParameters(new System.String[] { "A" })>]
member this.Lock : Java.Lang.Object * Java.Nio.Channels.ICompletionHandler -> unit

Parameters

attachment
Object

The object to attach to the I/O operation; can be null

handler
ICompletionHandler

The handler for consuming the result

Attributes

Remarks

Java documentation for java.nio.channels.AsynchronousFileChannel.lock(A, java.nio.channels.CompletionHandler<java.nio.channels.FileLock, ? super A>).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

Lock(Int64, Int64, Boolean)

Acquires a lock on the given region of this channel's file.

[Android.Runtime.Register("lock", "(JJZ)Ljava/util/concurrent/Future;", "GetLock_JJZHandler", ApiSince=26)]
public abstract Java.Util.Concurrent.IFuture? Lock (long position, long size, bool shared);
[<Android.Runtime.Register("lock", "(JJZ)Ljava/util/concurrent/Future;", "GetLock_JJZHandler", ApiSince=26)>]
abstract member Lock : int64 * int64 * bool -> Java.Util.Concurrent.IFuture

Parameters

position
Int64

The position at which the locked region is to start; must be non-negative

size
Int64

The size of the locked region; must be non-negative, and the sum position&nbsp;+&nbsp;size must be non-negative

shared
Boolean

true to request a shared lock, in which case this channel must be open for reading (and possibly writing); false to request an exclusive lock, in which case this channel must be open for writing (and possibly reading)

Returns

IFuture

a Future object representing the pending result

Attributes

Remarks

Java documentation for java.nio.channels.AsynchronousFileChannel.lock(long, long, boolean).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

Lock(Int64, Int64, Boolean, Object, ICompletionHandler)

Acquires a lock on the given region of this channel's file.

[Android.Runtime.Register("lock", "(JJZLjava/lang/Object;Ljava/nio/channels/CompletionHandler;)V", "GetLock_JJZLjava_lang_Object_Ljava_nio_channels_CompletionHandler_Handler", ApiSince=26)]
[Java.Interop.JavaTypeParameters(new System.String[] { "A" })]
public abstract void Lock (long position, long size, bool shared, Java.Lang.Object? attachment, Java.Nio.Channels.ICompletionHandler? handler);
[<Android.Runtime.Register("lock", "(JJZLjava/lang/Object;Ljava/nio/channels/CompletionHandler;)V", "GetLock_JJZLjava_lang_Object_Ljava_nio_channels_CompletionHandler_Handler", ApiSince=26)>]
[<Java.Interop.JavaTypeParameters(new System.String[] { "A" })>]
abstract member Lock : int64 * int64 * bool * Java.Lang.Object * Java.Nio.Channels.ICompletionHandler -> unit

Parameters

position
Int64

The position at which the locked region is to start; must be non-negative

size
Int64

The size of the locked region; must be non-negative, and the sum position&nbsp;+&nbsp;size must be non-negative

shared
Boolean

true to request a shared lock, in which case this channel must be open for reading (and possibly writing); false to request an exclusive lock, in which case this channel must be open for writing (and possibly reading)

attachment
Object

The object to attach to the I/O operation; can be null

handler
ICompletionHandler

The handler for consuming the result

Attributes

Remarks

Java documentation for java.nio.channels.AsynchronousFileChannel.lock(long, long, boolean, A, java.nio.channels.CompletionHandler<java.nio.channels.FileLock, ? super A>).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to