Class LinuxVirtualMachine

java.lang.Object

com.sun.tools.attach.VirtualMachine

sun.tools.attach.HotSpotVirtualMachine

sun.tools.attach.LinuxVirtualMachine

public class LinuxVirtualMachine
extends HotSpotVirtualMachine

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	LinuxVirtualMachine.SocketInputStream

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	ATTACH_ERROR_BADVERSION
(package private) static boolean	isLinuxThreads
(package private) String	path
private static final String	PROTOCOL_VERSION
private static final String	tmpdir

Constructor Summary

Constructors

Constructor	Description
LinuxVirtualMachine(AttachProvider provider, String vmid)	Attaches to the target VM

Method Summary

Modifier and Type	Method	Description
(package private) static void	checkPermissions(String path)
(package private) static void	close(int fd)
(package private) static void	connect(int fd, String path)
private File	createAttachFile(int pid)
void	detach()	Detach from the target VM
(package private) InputStream	execute(String cmd, Object... args)	Execute the given command in the target VM.
private String	findSocketFile(int pid)
(package private) static int	getLinuxThreadsManager(int pid)
(package private) static boolean	isLinuxThreads()
(package private) static int	read(int fd, byte[] buf, int off, int bufLen)
(package private) static void	sendQuitTo(int pid)
(package private) static void	sendQuitToChildrenOf(int pid)
(package private) static int	socket()
(package private) static void	write(int fd, byte[] buf, int off, int bufLen)
private void	writeString(int fd, String s)

Methods inherited from class HotSpotVirtualMachine

attachTimeout, dumpHeap, executeJCmd, getAgentProperties, getSystemProperties, heapHisto, loadAgent, loadAgentLibrary, loadAgentPath, localDataDump, printFlag, readInt, remoteDataDump, setFlag

Methods inherited from class VirtualMachine

attach, attach, equals, hashCode, id, list, loadAgent, loadAgentLibrary, loadAgentPath, provider, toString

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

tmpdir

private static final String tmpdir

See Also:

• Constant Field Values

isLinuxThreads

static boolean isLinuxThreads

path

String path

PROTOCOL_VERSION

private static final String PROTOCOL_VERSION

See Also:

• Constant Field Values

ATTACH_ERROR_BADVERSION

private static final int ATTACH_ERROR_BADVERSION

See Also:

• Constant Field Values

Constructor Details

LinuxVirtualMachine

public LinuxVirtualMachine(AttachProvider provider,
 String vmid)
                    throws AttachNotSupportedException,
IOException

Attaches to the target VM

Throws:

AttachNotSupportedException

IOException

Method Details

detach

public void detach()
            throws IOException

Detach from the target VM

Specified by:

detach in class VirtualMachine

Throws:

IOException - If an I/O error occurs

execute

InputStream execute(String cmd,
 Object... args)
             throws AgentLoadException,
IOException

Execute the given command in the target VM.

Specified by:

execute in class HotSpotVirtualMachine

Throws:

AgentLoadException

IOException

findSocketFile

private String findSocketFile(int pid)

createAttachFile

private File createAttachFile(int pid)
                       throws IOException

Throws:

IOException

writeString

private void writeString(int fd,
 String s)
                  throws IOException

Throws:

IOException

isLinuxThreads

static boolean isLinuxThreads()

getLinuxThreadsManager

static int getLinuxThreadsManager(int pid)
                           throws IOException

Throws:

IOException

sendQuitToChildrenOf

static void sendQuitToChildrenOf(int pid)
                          throws IOException

Throws:

IOException

sendQuitTo

static void sendQuitTo(int pid)
                throws IOException

Throws:

IOException

checkPermissions

static void checkPermissions(String path)
                      throws IOException

Throws:

IOException

socket

static int socket()
           throws IOException

Throws:

IOException

connect

static void connect(int fd,
 String path)
             throws IOException

Throws:

IOException

close

static void close(int fd)
           throws IOException

Throws:

IOException

read

static int read(int fd,
 byte[] buf,
 int off,
 int bufLen)
         throws IOException

Throws:

IOException

write

static void write(int fd,
 byte[] buf,
 int off,
 int bufLen)
           throws IOException

Throws:

IOException