Package org.robolectric.shadows

Class 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.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method 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)  
      static void reset()  
      static void setCreateShouldThrow​(android.system.ErrnoException e)
      Causes subsequent calls to {@link SharedMemory#create)} to throw the specified exception, if non-null.
      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

      • reset

        @Resetter
public static void reset()

      • 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)

      • setCreateShouldThrow

        public static void setCreateShouldThrow​(android.system.ErrnoException e)
        Causes subsequent calls to {@link SharedMemory#create)} to throw the specified exception, if non-null. Pass null to restore create to normal operation.