Interface JavaThread
- All Known Implementing Classes:
DTFJJavaThread
,JavaThread
,JCJavaThread
,PHDCorruptJavaThread
,PHDJavaThread
public interface JavaThread
Represents a Java thread.
- See Also:
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Field Summary
Modifier and TypeFieldDescriptionstatic final int
The thread is alivestatic final int
The thread is waiting to enter an object monitorstatic final int
The thread is in native codestatic final int
The thread is in Object.waitstatic final int
The thread has a pending interruptstatic final int
The thread has been deliberately removed from schedulingstatic final int
The thread can be run although may not be actually runningstatic final int
The thread is in the Thread.sleep methodstatic final int
The thread has been suspended by Thread.suspendstatic final int
The thread has terminatedstatic final int
The thread is in a vendor specific statestatic final int
The thread is in a vendor specific statestatic final int
The thread is in a vendor specific statestatic final int
The thread is in a waiting state in native codestatic final int
The thread is waiting on a monitor with no timeout value setstatic final int
The thread is waiting on a monitor but will timeout at some point -
Method Summary
Modifier and TypeMethodDescriptionboolean
Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.For threads that are in STATE_BLOCKED_ON_MONITOR_ENTER this method returns the JavaObject who's monitor they are blocked on.Represents the joining point between the Java view of execution and the corresponding native view.Get the address of the JNIEnv structure which represents this thread instance in JNI.getName()
Return the name of the thread.Fetch the java.lang.Thread associated with this thread.int
Get the Java priority of the thread.Get the set of stack frames.Get the set of ImageSections which make up the managed stack.int
getState()
Get the state of the thread when the image was created.int
hashCode()
Answers an integer hash code for the receiver.
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Field Details
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STATE_ALIVE
static final int STATE_ALIVEThe thread is alive- See Also:
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STATE_TERMINATED
static final int STATE_TERMINATEDThe thread has terminated- See Also:
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STATE_RUNNABLE
static final int STATE_RUNNABLEThe thread can be run although may not be actually running- See Also:
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STATE_WAITING_INDEFINITELY
static final int STATE_WAITING_INDEFINITELYThe thread is waiting on a monitor with no timeout value set- See Also:
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STATE_WAITING_WITH_TIMEOUT
static final int STATE_WAITING_WITH_TIMEOUTThe thread is waiting on a monitor but will timeout at some point- See Also:
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STATE_SLEEPING
static final int STATE_SLEEPINGThe thread is in the Thread.sleep method- See Also:
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STATE_WAITING
static final int STATE_WAITINGThe thread is in a waiting state in native code- See Also:
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STATE_IN_OBJECT_WAIT
static final int STATE_IN_OBJECT_WAITThe thread is in Object.wait- See Also:
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STATE_PARKED
static final int STATE_PARKEDThe thread has been deliberately removed from scheduling- See Also:
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STATE_BLOCKED_ON_MONITOR_ENTER
static final int STATE_BLOCKED_ON_MONITOR_ENTERThe thread is waiting to enter an object monitor- See Also:
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STATE_SUSPENDED
static final int STATE_SUSPENDEDThe thread has been suspended by Thread.suspend- See Also:
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STATE_INTERRUPTED
static final int STATE_INTERRUPTEDThe thread has a pending interrupt- See Also:
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STATE_IN_NATIVE
static final int STATE_IN_NATIVEThe thread is in native code- See Also:
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STATE_VENDOR_1
static final int STATE_VENDOR_1The thread is in a vendor specific state- See Also:
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STATE_VENDOR_2
static final int STATE_VENDOR_2The thread is in a vendor specific state- See Also:
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STATE_VENDOR_3
static final int STATE_VENDOR_3The thread is in a vendor specific state- See Also:
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Method Details
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getJNIEnv
Get the address of the JNIEnv structure which represents this thread instance in JNI.- Returns:
- the address of the JNIEnv structure which represents this thread instance in JNI
- Throws:
CorruptDataException
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getPriority
Get the Java priority of the thread.- Returns:
- the Java priority of the thread (a number between 1 and 10 inclusive)
- Throws:
CorruptDataException
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getObject
Fetch the java.lang.Thread associated with this thread. If the thread is in the process of being attached, this may return null.- Returns:
- the a JavaObject representing the java.lang.Thread associated with this thread
- Throws:
CorruptDataException
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getState
Get the state of the thread when the image was created.- Returns:
- the state of the thread when the image was created. The result is a bit vector, and uses the states defined by the JVMTI specification.
- Throws:
CorruptDataException
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getImageThread
Represents the joining point between the Java view of execution and the corresponding native view. This method is where the mapping from Java into native threading resources is provided.- Returns:
- the ImageThread which this ManagedThread is currently bound to.
- Throws:
CorruptDataException
- If the underlying resource describing the native representation of the thread is damagedDataUnavailable
- If no mapping is provided due to missing or limited underlying resources (this exception added in DTFJ 1.1)- See Also:
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getStackSections
Iterator getStackSections()Get the set of ImageSections which make up the managed stack.- Returns:
- a collection of ImageSections which make up the managed stack.
Some Runtime implementations may also use parts of the ImageThread's stack for ManagesStackFrames
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getStackFrames
Iterator getStackFrames()Get the set of stack frames.- Returns:
- an iterator to walk the managed stack frames in order from top-of-stack (that is, the most recent frame) to bottom-of-stack
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getName
Return the name of the thread. Usually this is derived from the object associated with the thread, but if the name cannot be derived this way (e.g. there is no object associated with the thread) DTFJ will synthesize a name for the thread.- Returns:
- the name of the thread
- Throws:
CorruptDataException
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getBlockingObject
For threads that are in STATE_BLOCKED_ON_MONITOR_ENTER this method returns the JavaObject who's monitor they are blocked on. For threads that are in STATE_IN_OBJECT_WAIT this method returns the JavaObject that Object.wait() was called on. For threads that are in STATE_PARKED this method returns the JavaObject that was passed as the "blocker" object to the java.util.concurrent.LockSupport.park() call. It may return null if no blocker object was passed. For threads in any other state this call will return null. The state of the thread can be determined by calling JavaThread.getState()- Returns:
- the object this thread is waiting on or null.
- Throws:
CorruptDataException
DataUnavailable
- Since:
- 1.6
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equals
Description copied from class:java.lang.Object
Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison. The implementation in Object answers true only if the argument is the exact same object as the receiver (==). -
hashCode
int hashCode()Description copied from class:java.lang.Object
Answers an integer hash code for the receiver. Any two objects which answertrue
when passed to.equals
must answer the same value for this method.
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