org.robolectric.shadows

Class ShadowSharedMemory

java.lang.Object

org.robolectric.shadows.ShadowSharedMemory

@Implements(value=android.os.SharedMemory.class,
            minSdk=27,
            isInAndroidSdk=false)
public class ShadowSharedMemory
extends java.lang.Object

A SharedMemory fake that uses a private temporary disk file for storage and Java’s MappedByteBuffer for the memory mappings.

Constructor Summary

Constructors

Constructor and Description
ShadowSharedMemory()

Method Summary

Modifier and Type	Method and Description
protected java.nio.ByteBuffer	map(int prot, int offset, int length) Only works on SharedMemory instances from SharedMemory.create(java.lang.String, int).
protected static java.io.FileDescriptor	nCreate(java.lang.String name, int size)
protected static int	nGetSize(java.io.FileDescriptor fd)
protected static void	unmap(java.nio.ByteBuffer mappedBuf)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ShadowSharedMemory

public ShadowSharedMemory()

Method Detail

map

@Implementation
protected java.nio.ByteBuffer map(int prot,
                                                  int offset,
                                                  int length)
                                           throws android.system.ErrnoException

Only works on SharedMemory instances from SharedMemory.create(java.lang.String, int).

“prot” is ignored – all mappings are read/write.

Throws:

android.system.ErrnoException

unmap

@Implementation
protected static void unmap(java.nio.ByteBuffer mappedBuf)
                                     throws android.system.ErrnoException

Throws:

android.system.ErrnoException

nCreate

@Implementation
protected static java.io.FileDescriptor nCreate(java.lang.String name,
                                                                int size)
                                                         throws android.system.ErrnoException

Throws:

android.system.ErrnoException

nGetSize

@Implementation
protected static int nGetSize(java.io.FileDescriptor fd)