public class Shm extends Object
| Constructor and Description | 
|---|
| Shm() | 
| Modifier and Type | Method and Description | 
|---|---|
| static long | attach(String filename,
      long pool)Attach to a shared memory segment that was created
 by another process. | 
| static long | baseaddr(long m)Retrieve the base address of the shared memory segment. | 
| static ByteBuffer | buffer(long m)Retrieve new ByteBuffer base address of the shared memory segment. | 
| static long | create(long reqsize,
      String filename,
      long pool)Create and make accessible a shared memory segment. | 
| static int | destroy(long m)Destroy a shared memory segment and associated memory. | 
| static int | detach(long m)Detach from a shared memory segment without destroying it. | 
| static int | remove(String filename,
      long pool)Remove shared memory segment associated with a filename. | 
| static long | size(long m)Retrieve the length of a shared memory segment in bytes. | 
public static long create(long reqsize,
          String filename,
          long pool)
                   throws Error
reqsize - The desired size of the segment.filename - The file to use for shared memory on platforms that
        require it.pool - the pool from which to allocate the shared memory
        structure.Error - An error occurredpublic static int remove(String filename, long pool)
filename - The filename associated with shared-memory segment which
        needs to be removedpool - The pool used for file operationspublic static int destroy(long m)
m - The shared memory segment structure to destroy.public static long attach(String filename, long pool) throws Error
filename - The file used to create the original segment.
        (This MUST match the original filename.)pool - the pool from which to allocate the shared memory
        structure for this process.Error - An error occurredpublic static int detach(long m)
m - The shared memory structure representing the segment
        to detach from.public static long baseaddr(long m)
m - The shared memory segment from which to retrieve
        the base address.public static long size(long m)
m - The shared memory segment from which to retrieve
        the segment length.public static ByteBuffer buffer(long m)
m - The shared memory segment from which to retrieve
        the base address.Copyright © 2000-2020 Apache Software Foundation. All Rights Reserved.