Package org.apache.harmony.dalvik.ddmc

Class DdmVmInternal

java.lang.Object

org.apache.harmony.dalvik.ddmc.DdmVmInternal

public class DdmVmInternal
extends Object

Declarations for some VM-internal DDM stuff.

Method Summary

Modifier and Type	Method	Description
static void	enableRecentAllocations(boolean enable)	Enable or disable "recent allocation" tracking.
static byte[]	getRecentAllocations()	Fill a buffer with data on recent heap allocations.
static boolean	getRecentAllocationStatus()
static StackTraceElement[]	getStackTraceById(int threadId)	Get a stack trace for the specified thread ID.
static byte[]	getThreadStats()	Get status info for all threads.
static boolean	heapInfoNotify(int when)	Enable heap info updates.
static boolean	heapSegmentNotify(int when, int what, boolean isNative)	Enable heap segment updates for the java (isNative == false) or native (isNative == true) heap.
static void	threadNotify(boolean enable)	Enable thread notification.

Methods inherited from class java.lang.Object

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

Method Detail

threadNotify

public static void threadNotify(boolean enable)

Enable thread notification. This is built into the VM, since that's where threads get managed.

heapInfoNotify

public static boolean heapInfoNotify(int when)

Enable heap info updates. This is built into the VM, since that's where the heap is managed.

Parameters:

when - when to send the next HPIF chunk

Returns:

true on success. false if 'when' is bad or if there was an internal error.

heapSegmentNotify

public static boolean heapSegmentNotify(int when,
                                        int what,
                                        boolean isNative)

Enable heap segment updates for the java (isNative == false) or native (isNative == true) heap. This is built into the VM, since that's where the heap is managed.

getThreadStats

public static byte[] getThreadStats()

Get status info for all threads. This is for the THST chunk. Returns a byte array with the THST data, or null if something went wrong.

getStackTraceById

public static StackTraceElement[] getStackTraceById(int threadId)

Get a stack trace for the specified thread ID. The ID can be found in the data from getThreadStats.

enableRecentAllocations

public static void enableRecentAllocations(boolean enable)

Enable or disable "recent allocation" tracking.

getRecentAllocationStatus

public static boolean getRecentAllocationStatus()

getRecentAllocations

public static byte[] getRecentAllocations()

Fill a buffer with data on recent heap allocations.