SharedMemory Class

Definition

SharedMemory enables the creation, mapping, and protection control over anonymous shared memory.

[Android.Runtime.Register("android/os/SharedMemory", ApiSince=27, DoNotGenerateAcw=true)]
public sealed class SharedMemory : Java.Lang.Object, Android.OS.IParcelable, IDisposable, Java.Interop.IJavaPeerable, Java.IO.ICloseable
[<Android.Runtime.Register("android/os/SharedMemory", ApiSince=27, DoNotGenerateAcw=true)>]
type SharedMemory = class
    inherit Object
    interface IParcelable
    interface IJavaObject
    interface IDisposable
    interface IJavaPeerable
    interface ICloseable
Inheritance
SharedMemory
Attributes
Implements

Remarks

SharedMemory enables the creation, mapping, and protection control over anonymous shared memory.

Java documentation for android.os.SharedMemory.

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.

Properties

Name Description
Class

Returns the runtime class of this Object.

(Inherited from Object)
Creator

Gets the Creator value.

Handle

The handle to the underlying Android instance.

(Inherited from Object)
JniIdentityHashCode

Gets the identity hash code assigned to this Java peer by the interop runtime.

(Inherited from Object)
JniPeerMembers

Provides JNI peer-member metadata for this type.

PeerReference

Gets the JNI object reference for this Java peer.

(Inherited from Object)
Size

Gets the Size value.

ThresholdClass

This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

(Inherited from Object)
ThresholdType

This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

(Inherited from Object)

Methods

Name Description
Clone()

Creates and returns a copy of this object.

(Inherited from Object)
Close()

Close the backing FileDescriptor of this SharedMemory instance.

Create(String, Int32)

Creates an anonymous SharedMemory instance with the provided debug name and size.

DescribeContents()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(Parcel,int) , the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Dispose()

Releases the resources held by this Java peer.

(Inherited from Object)
Dispose(Boolean)

Releases the resources held by this Java peer.

(Inherited from Object)
Equals(Object)

Indicates whether some other object is "equal to" this one.

(Inherited from Object)
FromFileDescriptor(ParcelFileDescriptor)

Creates an instance from existing shared memory passed as ParcelFileDescriptor.

GetHashCode()

Returns a hash code value for the object.

(Inherited from Object)
JavaFinalize()

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

(Inherited from Object)
Map(Int32, Int32, Int32)

Creates an mmap of the SharedMemory with the specified prot, offset, and length.

MapReadOnly()

Creates a read-only mapping of the entire shared memory region.

MapReadWrite()

Creates a read/write mapping of the entire shared memory region.

Notify()

Wakes up a single thread that is waiting on this object's monitor.

(Inherited from Object)
NotifyAll()

Wakes up all threads that are waiting on this object's monitor.

(Inherited from Object)
SetHandle(IntPtr, JniHandleOwnership)

Sets the Handle property.

(Inherited from Object)
SetProtect(Int32)

Sets the protection on the shared memory to the combination specified in prot, which is either a bitwise-or'd combination of android.system.OsConstants#PROT_READ, android.system.OsConstants#PROT_WRITE, android.system.OsConstants#PROT_EXEC from android.system.OsConstants, or android.system.OsConstants#PROT_NONE, to remove all further access.

ToArray<T>()

Creates a managed array from this Java array wrapper.

(Inherited from Object)
ToString()

Returns a string representation of the object.

(Inherited from Object)
Unmap(ByteBuffer)

Unmaps a buffer previously returned by #map(int, int, int).

UnregisterFromRuntime()

Unregisters this Java peer from the interop runtime.

(Inherited from Object)
Wait()

Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>.

(Inherited from Object)
Wait(Int64, Int32)

Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed.

(Inherited from Object)
Wait(Int64)

Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed.

(Inherited from Object)
WriteToParcel(Parcel, ParcelableWriteFlags)

Flatten this object in to a Parcel.

Explicit Interface Implementations

Name Description
IJavaPeerable.Disposed()

Notifies the interop runtime that this managed peer has been disposed.

(Inherited from Object)
IJavaPeerable.DisposeUnlessReferenced()

Releases this Java peer unless it is retained by another managed reference.

(Inherited from Object)
IJavaPeerable.Finalized()

Notifies the interop runtime that this managed peer has been finalized.

(Inherited from Object)
IJavaPeerable.JniManagedPeerState

Gets the state that describes the relationship between this managed peer and its JNI reference.

(Inherited from Object)
IJavaPeerable.SetJniIdentityHashCode(Int32)

Sets the interop identity hash code for this Java peer.

(Inherited from Object)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)

Sets the managed and JNI peer state for this Java peer.

(Inherited from Object)
IJavaPeerable.SetPeerReference(JniObjectReference)

Sets the JNI object reference used by this managed peer.

(Inherited from Object)

Extension Methods

Name Description
GetJniTypeName(IJavaPeerable)

Gets the JNI name of the type of the instance self.

JavaAs<TResult>(IJavaPeerable)

Try to coerce self to type TResult, checking that the coercion is valid on the Java side.

JavaCast<TResult>(IJavaObject)

Performs an Android runtime-checked type conversion.

JavaCast<TResult>(IJavaObject)
TryJavaCast<TResult>(IJavaPeerable, TResult)

Try to coerce self to type TResult, checking that the coercion is valid on the Java side.

Applies to