internal jvmtiError AddGlobalReference(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, jobject obj)
{
long tag;
jvmtiError error = environment.GetTag(obj, out tag);
if (error != jvmtiError.None)
{
return(error);
}
if (tag == 0)
{
return(jvmtiError.IllegalArgument);
}
_globalReferences.AddOrUpdate(tag,
t =>
{
return(Tuple.Create(nativeEnvironment.NewGlobalReference(obj), 1));
},
(t, v) =>
{
if (v.Item2 == 0)
{
return(Tuple.Create(nativeEnvironment.NewGlobalReference(obj), 1));
}
else
{
return(Tuple.Create(v.Item1, v.Item2 + 1));
}
});
return(jvmtiError.None);
}
public LocalObjectReferenceHolder(JniEnvironment nativeEnvironment, jobject reference)
{
Contract.Requires<ArgumentNullException>(nativeEnvironment != null, "nativeEnvironment");
_nativeEnvironment = nativeEnvironment;
_reference = _nativeEnvironment.NewLocalReference(reference);
}
public LocalClassReferenceHolder(JniEnvironment nativeEnvironment, jclass reference)
{
Contract.Requires<ArgumentNullException>(nativeEnvironment != null, "nativeEnvironment");
_nativeEnvironment = nativeEnvironment;
_reference = (jclass)_nativeEnvironment.NewLocalReference(reference);
}
public LocalObjectReferenceHolder(JniEnvironment nativeEnvironment, jobject reference)
{
Contract.Requires <ArgumentNullException>(nativeEnvironment != null, "nativeEnvironment");
_nativeEnvironment = nativeEnvironment;
_reference = _nativeEnvironment.NewLocalReference(reference);
}
public LocalThreadReferenceHolder(JniEnvironment nativeEnvironment, jthread reference)
{
Contract.Requires <ArgumentNullException>(nativeEnvironment != null, "nativeEnvironment");
_nativeEnvironment = nativeEnvironment;
_reference = (jthread)_nativeEnvironment.NewLocalReference(reference);
}
public jvalue(JavaVM virtualMachine, JvmtiEnvironment environment, JniEnvironment nativeEnvironment, Value value)
: this()
{
if (value.Data == 0)
return;
switch (value.Tag)
{
case Tag.Byte:
ByteValue = (byte)value.Data;
break;
case Tag.Char:
CharValue = (char)value.Data;
break;
case Tag.Float:
IntValue = (int)(uint)value.Data;
break;
case Tag.Int:
IntValue = (int)value.Data;
break;
case Tag.Double:
LongValue = (long)(ulong)value.Data;
break;
case Tag.Long:
LongValue = value.Data;
break;
case Tag.Short:
ShortValue = (short)value.Data;
break;
case Tag.Boolean:
break;
case Tag.Array:
case Tag.Object:
case Tag.String:
case Tag.Thread:
case Tag.ThreadGroup:
case Tag.ClassLoader:
case Tag.ClassObject:
if (value.Data == 0)
return;
ObjectValue = virtualMachine.GetLocalReferenceForObject(nativeEnvironment, new ObjectId(value.Data)).Value;
break;
case Tag.Void:
case Tag.Invalid:
default:
throw new ArgumentException();
}
}
public static EventFilter CreateFilter(EventKind internalEventKind, JvmtiEnvironment environment, JniEnvironment nativeEnvironment, RequestId requestId, SuspendPolicy suspendPolicy, ImmutableList<EventRequestModifier> modifiers)
{
if (modifiers.Count == 0)
return new PassThroughEventFilter(internalEventKind, requestId, suspendPolicy, modifiers);
EventFilter[] elements = modifiers.Select(modifier => CreateFilter(internalEventKind, environment, nativeEnvironment, requestId, suspendPolicy, modifiers, modifier)).ToArray();
if (elements.Length == 1)
return elements[0];
return new AggregateEventFilter(internalEventKind, requestId, suspendPolicy, modifiers, elements);
}
internal LocalThreadReferenceHolder GetLocalReferenceForThread(JniEnvironment nativeEnvironment, ThreadId threadId)
{
LocalThreadReferenceHolder thread;
var error = GetLocalReferenceForThread(nativeEnvironment, threadId, out thread);
if (error != jvmtiError.None)
{
return(new LocalThreadReferenceHolder());
}
return(thread);
}
internal LocalObjectReferenceHolder GetLocalReferenceForObject(JniEnvironment nativeEnvironment, ObjectId objectId)
{
LocalObjectReferenceHolder thread;
jvmtiError error = GetLocalReferenceForObject(nativeEnvironment, objectId, out thread);
if (error != jvmtiError.None)
{
return(new LocalObjectReferenceHolder());
}
return(thread);
}
internal LocalClassReferenceHolder GetLocalReferenceForClass(JniEnvironment nativeEnvironment, ReferenceTypeId classId)
{
LocalClassReferenceHolder thread;
var error = GetLocalReferenceForClass(nativeEnvironment, classId, out thread);
if (error != jvmtiError.None)
{
return(new LocalClassReferenceHolder());
}
return(thread);
}
internal static JniEnvironment GetOrCreateInstance(JNIEnvHandle handle, out bool created)
{
bool wasCreated = false;
JniEnvironment environment = _instances.GetOrAdd(handle,
i =>
{
wasCreated = true;
return(CreateVirtualMachine(i));
});
created = wasCreated;
return(environment);
}
public jvmtiError GetFrameCount(JniEnvironment nativeEnvironment, ThreadId threadId, out int frameCount)
{
frameCount = 0;
using (var thread = VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, threadId))
{
if (!thread.IsAlive)
{
return(jvmtiError.InvalidThread);
}
return(RawInterface.GetFrameCount(this, thread.Value, out frameCount));
}
}
internal jvmtiError GetLocalReferenceForClass(JniEnvironment nativeEnvironment, ReferenceTypeId typeId, out LocalClassReferenceHolder thread)
{
thread = default(LocalClassReferenceHolder);
jclass threadHandle;
jvmtiError error = GetClass(typeId, out threadHandle);
if (error != jvmtiError.None)
{
return(error);
}
thread = new LocalClassReferenceHolder(nativeEnvironment, threadHandle);
return(jvmtiError.None);
}
internal jvmtiError GetLocalReferenceForObject(JniEnvironment nativeEnvironment, ObjectId objectId, out LocalObjectReferenceHolder thread)
{
thread = default(LocalObjectReferenceHolder);
jobject threadHandle;
jvmtiError error = GetObject(objectId, out threadHandle);
if (error != jvmtiError.None)
{
return(error);
}
thread = new LocalObjectReferenceHolder(nativeEnvironment, threadHandle);
return(jvmtiError.None);
}
public jvmtiError GetCurrentThread(JniEnvironment nativeEnvironment, out ThreadId thread)
{
thread = default(ThreadId);
jthread threadPtr;
jvmtiError error = RawInterface.GetCurrentThread(this, out threadPtr);
if (error != jvmtiError.None)
{
return(error);
}
thread = VirtualMachine.TrackLocalThreadReference(threadPtr, this, nativeEnvironment, true);
return(jvmtiError.None);
}
public jvmtiError GetClassSignature(JniEnvironment nativeEnvironment, ReferenceTypeId classId, out string signature, out string genericSignature)
{
signature = null;
genericSignature = null;
using (var classHandle = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, classId))
{
if (!classHandle.IsAlive)
{
return(jvmtiError.InvalidClass);
}
return(GetClassSignature(classHandle.Value, out signature, out genericSignature));
}
}
public jvmtiError GetLocalObject(JniEnvironment nativeEnvironment, jthread thread, int depth, int slot, out TaggedObjectId value)
{
value = default(TaggedObjectId);
jobject obj;
jvmtiError error = RawInterface.GetLocalObject(this, thread, depth, slot, out obj);
if (error != jvmtiError.None)
{
return(error);
}
value = VirtualMachine.TrackLocalObjectReference(obj, this, nativeEnvironment, true);
return(jvmtiError.None);
}
internal jvmtiError GetLocalReferenceForThread(JniEnvironment nativeEnvironment, ThreadId threadId, out LocalThreadReferenceHolder thread)
{
thread = default(LocalThreadReferenceHolder);
jthread threadHandle;
jvmtiError error = GetThread(threadId, out threadHandle);
if (error != jvmtiError.None)
{
return(error);
}
thread = new LocalThreadReferenceHolder(nativeEnvironment, threadHandle);
return(jvmtiError.None);
}
public jvmtiError GetMethodDeclaringClass(JniEnvironment nativeEnvironment, MethodId methodId, out TaggedReferenceTypeId declaringClass)
{
declaringClass = default(TaggedReferenceTypeId);
jclass classHandle;
jvmtiError error = RawInterface.GetMethodDeclaringClass(this, (jmethodID)methodId, out classHandle);
if (error != jvmtiError.None)
{
return(error);
}
declaringClass = VirtualMachine.TrackLocalClassReference(classHandle, this, nativeEnvironment, true);
return(jvmtiError.None);
}
private static EventFilter CreateFilter(EventKind internalEventKind, JvmtiEnvironment environment, JniEnvironment nativeEnvironment, RequestId requestId, SuspendPolicy suspendPolicy, ImmutableList<EventRequestModifier> modifiers, EventRequestModifier modifier)
{
switch (modifier.Kind)
{
case ModifierKind.Count:
return new CountEventFilter(internalEventKind, requestId, suspendPolicy, modifiers, modifier.Count);
case ModifierKind.ThreadFilter:
return new ThreadEventFilter(internalEventKind, requestId, suspendPolicy, modifiers, modifier.Thread);
case ModifierKind.ClassTypeFilter:
throw new NotImplementedException();
case ModifierKind.ClassMatchFilter:
throw new NotImplementedException();
case ModifierKind.ClassExcludeFilter:
throw new NotImplementedException();
case ModifierKind.LocationFilter:
return new LocationEventFilter(internalEventKind, requestId, suspendPolicy, modifiers, modifier.Location);
case ModifierKind.ExceptionFilter:
return new ExceptionEventFilter(internalEventKind, requestId, suspendPolicy, modifiers, modifier.ExceptionOrNull, modifier.Caught, modifier.Uncaught);
case ModifierKind.FieldFilter:
throw new NotImplementedException();
case ModifierKind.Step:
return new StepEventFilter(internalEventKind, requestId, suspendPolicy, modifiers, modifier.Thread, environment, nativeEnvironment, modifier.StepSize, modifier.StepDepth);
case ModifierKind.InstanceFilter:
throw new NotImplementedException();
case ModifierKind.SourceNameMatchFilter:
throw new NotImplementedException();
case ModifierKind.Conditional:
throw new NotImplementedException();
case ModifierKind.Invalid:
default:
throw new ArgumentException();
}
}
public jvmtiError GetClassFields(JniEnvironment nativeEnvironment, ReferenceTypeId declaringType, out FieldId[] fields)
{
fields = null;
using (var @class = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, declaringType))
{
if ([email protected])
{
return(jvmtiError.InvalidClass);
}
int fieldsCount;
IntPtr fieldsPtr;
jvmtiError error = RawInterface.GetClassFields(this, @class.Value, out fieldsCount, out fieldsPtr);
if (error != jvmtiError.None)
{
return(error);
}
try
{
List <FieldId> fieldList = new List <FieldId>();
unsafe
{
jfieldID *fieldHandles = (jfieldID *)fieldsPtr;
for (int i = 0; i < fieldsCount; i++)
{
if (fieldHandles[i] == jfieldID.Null)
{
continue;
}
fieldList.Add(fieldHandles[i]);
}
}
fields = fieldList.ToArray();
return(jvmtiError.None);
}
finally
{
Deallocate(fieldsPtr);
}
}
}
public jvmtiError GetClassMethods(JniEnvironment nativeEnvironment, ReferenceTypeId declaringType, out MethodId[] methods)
{
methods = null;
using (var @class = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, declaringType))
{
if ([email protected])
{
return(jvmtiError.InvalidClass);
}
int methodsCount;
IntPtr methodsPtr;
jvmtiError error = RawInterface.GetClassMethods(this, @class.Value, out methodsCount, out methodsPtr);
if (error != jvmtiError.None)
{
return(error);
}
try
{
List <MethodId> methodList = new List <MethodId>();
unsafe
{
jmethodID *methodHandles = (jmethodID *)methodsPtr;
for (int i = 0; i < methodsCount; i++)
{
if (methodHandles[i] == jmethodID.Null)
{
continue;
}
methodList.Add(new MethodId(methodHandles[i].Handle));
}
}
methods = methodList.ToArray();
return(jvmtiError.None);
}
finally
{
Deallocate(methodsPtr);
}
}
}
public int AttachCurrentThreadAsDaemon(JvmtiEnvironment environment, out JniEnvironment nativeEnvironment, bool agentThread)
{
JavaVMAttachArgs args = new JavaVMAttachArgs(jniVersion.Version1_6, IntPtr.Zero, jthreadGroup.Null);
bool alreadyAgent = IsAgentThread.Value;
if (agentThread && !alreadyAgent)
{
IsAgentThread.Value = true;
}
JNIEnvHandle jniEnv;
int error = RawInterface.AttachCurrentThreadAsDaemon(this, out jniEnv, ref args);
if (error == 0)
{
bool created;
nativeEnvironment = JniEnvironment.GetOrCreateInstance(jniEnv, out created);
if (agentThread && !alreadyAgent)
{
if (environment == null)
{
GetEnvironment(out environment);
}
jthread thread;
JvmtiErrorHandler.ThrowOnFailure(environment.RawInterface.GetCurrentThread(environment, out thread));
if (thread != jthread.Null)
{
ThreadId threadId = TrackLocalThreadReference(thread, environment, nativeEnvironment, true);
lock (_agentThreads)
{
_agentThreads.Add(threadId);
}
}
}
}
else
{
nativeEnvironment = null;
}
return(error);
}
public jvmtiError ResumeThreads(JniEnvironment nativeEnvironment, ThreadId[] threads, out jvmtiError[] errors)
{
List <Tuple <int, LocalThreadReferenceHolder> > threadsToResume = new List <Tuple <int, LocalThreadReferenceHolder> >();
errors = new jvmtiError[threads.Length];
for (int i = 0; i < threads.Length; i++)
{
LocalThreadReferenceHolder thread;
errors[i] = VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, threads[i], out thread);
if (errors[i] == jvmtiError.None && thread.IsAlive)
{
int suspendCount = VirtualMachine.SuspendCounts.AddOrUpdate(threads[i], 0, (existingId, existingValue) => existingValue - 1);
if (suspendCount == 0)
{
threadsToResume.Add(Tuple.Create(i, thread));
}
}
}
if (threadsToResume.Count == 0)
{
return(jvmtiError.None);
}
jthread[] requestList = threadsToResume.Select(i => i.Item2.Value).ToArray();
jvmtiError[] intermediateErrors = new jvmtiError[requestList.Length];
jvmtiError error = RawInterface.ResumeThreadList(this, requestList.Length, requestList, intermediateErrors);
for (int i = 0; i < intermediateErrors.Length; i++)
{
errors[threadsToResume[i].Item1] = intermediateErrors[i];
if (error != jvmtiError.None || intermediateErrors[i] != jvmtiError.None)
{
VirtualMachine.SuspendCounts.AddOrUpdate(threads[threadsToResume[i].Item1], 0, (existingId, existingValue) => existingValue + 1);
}
}
foreach (var referencePair in threadsToResume)
{
referencePair.Item2.Dispose();
}
return(error);
}
public jvmtiError GetStackTrace(JniEnvironment nativeEnvironment, ThreadId threadId, int startDepth, int maxFrameCount, out FrameLocationData[] frames)
{
frames = null;
using (var thread = VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, threadId))
{
if (!thread.IsAlive)
{
return(jvmtiError.InvalidThread);
}
jvmtiFrameInfo[] frameBuffer = new jvmtiFrameInfo[maxFrameCount];
int frameCount;
jvmtiError error = RawInterface.GetStackTrace(this, thread.Value, startDepth, maxFrameCount, frameBuffer, out frameCount);
if (error != jvmtiError.None)
{
return(error);
}
var frameData = new FrameLocationData[frameCount];
for (int i = 0; i < frameCount; i++)
{
TaggedReferenceTypeId declaringClass;
MethodId method = new MethodId(frameBuffer[i]._method.Handle);
ulong index = (ulong)frameBuffer[i]._location.Value;
error = GetMethodDeclaringClass(nativeEnvironment, method, out declaringClass);
if (error != jvmtiError.None)
{
return(error);
}
FrameId frameId = new FrameId(startDepth + i);
Location location = new Location(declaringClass, method, index);
frameData[i] = new FrameLocationData(frameId, location);
}
frames = frameData;
return(jvmtiError.None);
}
}
public jvmtiError GetAllThreads(JniEnvironment nativeEnvironment, out ThreadId[] threads)
{
threads = null;
int threadsCount;
IntPtr threadsPtr;
jvmtiError error = RawInterface.GetAllThreads(this, out threadsCount, out threadsPtr);
if (error != jvmtiError.None)
{
return(error);
}
try
{
HashSet <ThreadId> threadSet = new HashSet <ThreadId>();
unsafe
{
jthread *threadHandles = (jthread *)threadsPtr;
for (int i = 0; i < threadsCount; i++)
{
if (threadHandles[i] == jthread.Null)
{
continue;
}
threadSet.Add(VirtualMachine.TrackLocalThreadReference(threadHandles[i], this, nativeEnvironment, true));
}
}
threadSet.ExceptWith(_virtualMachine.AgentThreads);
threads = threadSet.ToArray();
return(jvmtiError.None);
}
finally
{
Deallocate(threadsPtr);
}
}
public jvmtiError GetClassModifiers(JniEnvironment nativeEnvironment, ReferenceTypeId declaringType, out AccessModifiers modifiers)
{
modifiers = 0;
using (var @class = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, declaringType))
{
if ([email protected])
{
return(jvmtiError.InvalidClass);
}
JvmAccessModifiers modifiersPtr;
jvmtiError error = RawInterface.GetClassModifiers(this, @class.Value, out modifiersPtr);
if (error != jvmtiError.None)
{
return(error);
}
modifiers = (AccessModifiers)modifiersPtr;
return(jvmtiError.None);
}
}
internal jvmtiError RemoveGlobalReference(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, jobject obj)
{
long tag;
jvmtiError error = environment.GetTag(obj, out tag);
if (error != jvmtiError.None)
{
return(error);
}
if (tag == 0)
{
return(jvmtiError.IllegalArgument);
}
var result = _globalReferences.AddOrUpdate(tag,
t =>
{
return(Tuple.Create(jobject.Null, 0));
},
(t, v) =>
{
if (v.Item2 == 0)
{
return(Tuple.Create(jobject.Null, 0));
}
else if (v.Item2 == 1)
{
nativeEnvironment.DeleteGlobalReference(v.Item1);
return(Tuple.Create(jobject.Null, 0));
}
else
{
return(Tuple.Create(v.Item1, v.Item2 - 1));
}
});
return(jvmtiError.None);
}
public jvmtiError GetImplementedInterfaces(JniEnvironment nativeEnvironment, jclass classHandle, out TaggedReferenceTypeId[] interfaces)
{
interfaces = null;
int interfacesCount;
IntPtr interfacesPtr;
jvmtiError error = RawInterface.GetImplementedInterfaces(this, classHandle, out interfacesCount, out interfacesPtr);
if (error != jvmtiError.None)
{
return(error);
}
try
{
List <TaggedReferenceTypeId> interfaceList = new List <TaggedReferenceTypeId>();
unsafe
{
jclass *interfaceHandles = (jclass *)interfacesPtr;
for (int i = 0; i < interfacesCount; i++)
{
if (interfaceHandles[i] == jclass.Null)
{
continue;
}
interfaceList.Add(VirtualMachine.TrackLocalClassReference(interfaceHandles[i], this, nativeEnvironment, true));
}
}
interfaces = interfaceList.ToArray();
return(jvmtiError.None);
}
finally
{
Deallocate(interfacesPtr);
}
}
public jvmtiError GetTopThreadGroups(JniEnvironment nativeEnvironment, out ThreadGroupId[] threadGroups)
{
threadGroups = null;
int threadsGroupsCount;
IntPtr threadsGroupsPtr;
jvmtiError error = RawInterface.GetTopThreadGroups(this, out threadsGroupsCount, out threadsGroupsPtr);
if (error != jvmtiError.None)
{
return(error);
}
try
{
List <ThreadGroupId> threadGroupList = new List <ThreadGroupId>();
unsafe
{
jthreadGroup *threadGroupHandles = (jthreadGroup *)threadsGroupsPtr;
for (int i = 0; i < threadsGroupsCount; i++)
{
if (threadGroupHandles[i] == jthreadGroup.Null)
{
continue;
}
threadGroupList.Add((ThreadGroupId)VirtualMachine.TrackLocalObjectReference(threadGroupHandles[i], this, nativeEnvironment, true));
}
}
threadGroups = threadGroupList.ToArray();
return(jvmtiError.None);
}
finally
{
Deallocate(threadsGroupsPtr);
}
}
public jvmtiError GetLoadedClasses(JniEnvironment nativeEnvironment, out TaggedReferenceTypeId[] classes)
{
classes = null;
int classCount;
IntPtr classesPtr;
jvmtiError error = RawInterface.GetLoadedClasses(this, out classCount, out classesPtr);
if (error != jvmtiError.None)
{
return(error);
}
try
{
List <TaggedReferenceTypeId> classList = new List <TaggedReferenceTypeId>();
unsafe
{
jclass *classHandles = (jclass *)classesPtr;
for (int i = 0; i < classCount; i++)
{
if (classHandles[i] == jclass.Null)
{
continue;
}
classList.Add(VirtualMachine.TrackLocalClassReference(classHandles[i], this, nativeEnvironment, true));
}
}
classes = classList.ToArray();
return(jvmtiError.None);
}
finally
{
Deallocate(classesPtr);
}
}
internal jclass FindBaseClass(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, jclass classHandle, string signature)
{
string currentSignature;
string genericSignature;
JvmtiErrorHandler.ThrowOnFailure(environment.GetClassSignature(classHandle, out currentSignature, out genericSignature));
if (currentSignature == signature)
{
return((jclass)nativeEnvironment.NewGlobalReference(classHandle));
}
jclass superClass = nativeEnvironment.GetSuperclass(classHandle);
if (superClass == jclass.Null)
{
return(jclass.Null);
}
jclass result = FindBaseClass(environment, nativeEnvironment, superClass, signature);
nativeEnvironment.DeleteLocalReference(superClass);
return(result);
}
internal void HandleVMInit(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, jthread thread)
{
jclass threadClass = nativeEnvironment.GetObjectClass(thread);
_threadClass = FindBaseClass(environment, nativeEnvironment, threadClass, "Ljava/lang/Thread;");
{
jclass classClass = nativeEnvironment.GetObjectClass(threadClass);
_classClass = FindBaseClass(environment, nativeEnvironment, classClass, "Ljava/lang/Class;");
nativeEnvironment.DeleteLocalReference(classClass);
}
{
jvmtiThreadInfo threadInfo;
JvmtiErrorHandler.ThrowOnFailure(environment.GetThreadInfo(thread, out threadInfo));
jclass threadGroupClass = nativeEnvironment.GetObjectClass(threadInfo._threadGroup);
_threadGroupClass = FindBaseClass(environment, nativeEnvironment, threadGroupClass, "Ljava/lang/ThreadGroup;");
jclass classLoaderClass = nativeEnvironment.GetObjectClass(threadInfo._contextClassLoader);
_classLoaderClass = FindBaseClass(environment, nativeEnvironment, classLoaderClass, "Ljava/lang/ClassLoader;");
nativeEnvironment.DeleteLocalReference(classLoaderClass);
nativeEnvironment.DeleteLocalReference(threadGroupClass);
nativeEnvironment.DeleteLocalReference(threadInfo._contextClassLoader);
nativeEnvironment.DeleteLocalReference(threadInfo._threadGroup);
environment.Deallocate(threadInfo._name);
}
nativeEnvironment.DeleteLocalReference(threadClass);
jobject stringObject = nativeEnvironment.NewString(string.Empty);
jclass stringClass = nativeEnvironment.GetObjectClass(stringObject);
_stringClass = FindBaseClass(environment, nativeEnvironment, stringClass, "Ljava/lang/String;");
nativeEnvironment.DeleteLocalReference(stringObject);
nativeEnvironment.DeleteLocalReference(stringClass);
}
public jvmtiError ResumeThread(JniEnvironment nativeEnvironment, ThreadId threadId)
{
using (var thread = VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, threadId))
{
if (!thread.IsAlive)
{
return(jvmtiError.InvalidThread);
}
int suspendCount = VirtualMachine.SuspendCounts.AddOrUpdate(threadId, 0, (existingId, existingValue) => Math.Max(0, existingValue - 1));
if (suspendCount > 0)
{
return(jvmtiError.None);
}
jvmtiError error = RawInterface.ResumeThread(this, thread.Value);
if (error != jvmtiError.None)
{
VirtualMachine.SuspendCounts.AddOrUpdate(threadId, 0, (existingId, existingValue) => existingValue + 1);
}
return(error);
}
}
public jvmtiError GetSourceFileName(JniEnvironment nativeEnvironment, ReferenceTypeId classId, out string sourceName)
{
sourceName = null;
using (var classHandle = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, classId))
{
if (!classHandle.IsAlive)
{
return(jvmtiError.InvalidClass);
}
IntPtr sourceNamePtr;
jvmtiError error = RawInterface.GetSourceFileName(this, classHandle.Value, out sourceNamePtr);
if (error != jvmtiError.None)
{
return(error);
}
try
{
unsafe
{
if (sourceNamePtr != IntPtr.Zero)
{
sourceName = ModifiedUTF8Encoding.GetString((byte *)sourceNamePtr);
}
}
return(jvmtiError.None);
}
finally
{
Deallocate(sourceNamePtr);
}
}
}
public override bool ProcessEvent(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventProcessor processor, ThreadId thread, TaggedReferenceTypeId @class, Location? location)
{
foreach (EventFilter filter in _filters)
{
if (!filter.ProcessEvent(environment, nativeEnvironment, processor, thread, @class, location))
return false;
}
return true;
}
private jvmtiError GetEnvironment(out JvmtiEnvironment environment, out JniEnvironment nativeEnvironment)
{
environment = null;
nativeEnvironment = null;
environment = _environment;
int error = VirtualMachine.AttachCurrentThreadAsDaemon(environment, out nativeEnvironment, true);
if (error != 0)
return GetToolsErrorForJniError(error);
//error = VirtualMachine.GetEnvironment(out environment);
//if (error != 0)
// return GetToolsErrorForJniError(error);
return jvmtiError.None;
}
public jvmtiError GetFrameCount(JniEnvironment nativeEnvironment, ThreadId threadId, out int frameCount)
{
frameCount = 0;
using (var thread = VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, threadId))
{
if (!thread.IsAlive)
return jvmtiError.InvalidThread;
return RawInterface.GetFrameCount(this, thread.Value, out frameCount);
}
}
public StepEventFilter(EventKind internalEventKind, RequestId requestId, SuspendPolicy suspendPolicy, IEnumerable<EventRequestModifier> modifiers, ThreadId thread, JvmtiEnvironment environment, JniEnvironment nativeEnvironment, StepSize size, StepDepth depth)
: base(internalEventKind, requestId, suspendPolicy, modifiers, thread)
{
if (size == StepSize.Statement && JavaVM.DisableStatementStepping)
size = StepSize.Line;
_size = size;
_depth = depth;
// gather reference information for the thread
using (var threadHandle = environment.VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, thread))
{
if (threadHandle.IsAlive)
{
jvmtiError error = environment.GetFrameLocation(threadHandle.Value, 0, out _lastMethod, out _lastLocation);
if (error == jvmtiError.None)
error = environment.GetFrameCount(threadHandle.Value, out _stackDepth);
if (error == jvmtiError.None)
_hasMethodInfo = true;
UpdateLastLine(environment);
if (error == jvmtiError.None && size == StepSize.Statement && (depth == StepDepth.Over || depth == StepDepth.Into))
{
byte[] bytecode;
JvmtiErrorHandler.ThrowOnFailure(environment.GetBytecodes(_lastMethod, out bytecode));
_disassembledMethod = BytecodeDisassembler.Disassemble(bytecode);
TaggedReferenceTypeId declaringClass;
JvmtiErrorHandler.ThrowOnFailure(environment.GetMethodDeclaringClass(nativeEnvironment, _lastMethod, out declaringClass));
using (var classHandle = environment.VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, declaringClass.TypeId))
{
int constantPoolCount;
byte[] data;
JvmtiErrorHandler.ThrowOnFailure(environment.GetConstantPool(classHandle.Value, out constantPoolCount, out data));
List<ConstantPoolEntry> entryList = new List<ConstantPoolEntry>();
int currentPosition = 0;
for (int i = 0; i < constantPoolCount - 1; i++)
{
entryList.Add(ConstantPoolEntry.FromBytes(data, ref currentPosition));
switch (entryList.Last().Type)
{
case ConstantType.Double:
case ConstantType.Long:
// these entries take 2 slots
entryList.Add(ConstantPoolEntry.Reserved);
i++;
break;
default:
break;
}
}
_constantPool = entryList.AsReadOnly();
string classSignature;
string classGenericSignature;
JvmtiErrorHandler.ThrowOnFailure(environment.GetClassSignature(classHandle.Value, out classSignature, out classGenericSignature));
string methodName;
string methodSignature;
string methodGenericSignature;
JvmtiErrorHandler.ThrowOnFailure(environment.GetMethodName(_lastMethod, out methodName, out methodSignature, out methodGenericSignature));
jobject classLoader;
JvmtiErrorHandler.ThrowOnFailure(environment.GetClassLoader(classHandle.Value, out classLoader));
long classLoaderTag;
JvmtiErrorHandler.ThrowOnFailure(environment.TagClassLoader(classLoader, out classLoaderTag));
ReadOnlyCollection<ExceptionTableEntry> exceptionTable;
JvmtiErrorHandler.ThrowOnFailure(environment.VirtualMachine.GetExceptionTable(classLoaderTag, classSignature, methodName, methodSignature, out exceptionTable));
_evaluationStackDepths = BytecodeDisassembler.GetEvaluationStackDepths(_disassembledMethod, _constantPool, exceptionTable);
}
}
}
}
}
private bool ShouldSkipCurrentMethod(JavaVM virtualMachine, JvmtiEnvironment environment, JniEnvironment nativeEnvironment, jthread thread, int stackDepth, Location location, out bool convertToFramePop)
{
Contract.Assert(_depth == StepDepth.Into || _depth == StepDepth.Over);
convertToFramePop = false;
if (!_hasMethodInfo || stackDepth < _stackDepth || (stackDepth == _stackDepth && (location.Method.Equals(_lastMethod))))
return false;
/*
* change this to a Frame Pop event if we're not in a native frame
*/
bool native;
jvmtiError error = environment.IsMethodNative(location.Method, out native);
if (error != jvmtiError.None)
return false;
convertToFramePop = !native;
if (_depth == StepDepth.Over || native)
return true;
JvmAccessModifiers modifiers;
error = environment.GetMethodModifiers(location.Method, out modifiers);
if (error != jvmtiError.None || ((modifiers & JvmAccessModifiers.Static) != 0))
return false;
jobject thisObject;
error = environment.GetLocalObject(thread, 0, 0, out thisObject);
if (error != jvmtiError.None)
return false;
try
{
bool classLoader = nativeEnvironment.IsInstanceOf(thisObject, virtualMachine.ClassLoaderClass);
if (!classLoader)
return false;
string name;
string signature;
string genericSignature;
error = environment.GetMethodName(location.Method, out name, out signature, out genericSignature);
if (error != jvmtiError.None)
return false;
if (name == "loadClass" && signature == "(Ljava/lang/String;)Ljava/lang/Class;")
return true;
if (name == "checkPackageAccess" && signature == "(Ljava/lang/Class;Ljava/security/ProtectionDomain;)V")
return true;
return false;
}
finally
{
nativeEnvironment.DeleteLocalReference(thisObject);
}
}
public jvmtiError GetClassModifiers(JniEnvironment nativeEnvironment, ReferenceTypeId declaringType, out AccessModifiers modifiers)
{
modifiers = 0;
using (var @class = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, declaringType))
{
if ([email protected])
return jvmtiError.InvalidClass;
JvmAccessModifiers modifiersPtr;
jvmtiError error = RawInterface.GetClassModifiers(this, @class.Value, out modifiersPtr);
if (error != jvmtiError.None)
return error;
modifiers = (AccessModifiers)modifiersPtr;
return jvmtiError.None;
}
}
private void InitializeAgentThread(JvmtiEnvironment environment, JniEnvironment nativeEnvironment)
{
_agentStartedEvent = new ManualResetEventSlim(false);
_agentThread = CreateAgentThread(nativeEnvironment);
_agentCallbackDelegate = AgentDispatcherThread;
JvmtiErrorHandler.ThrowOnFailure(environment.RawInterface.RunAgentThread(environment, _agentThread, _agentCallbackDelegate, IntPtr.Zero, JvmThreadPriority.Maximum));
_agentStartedEvent.Wait();
}
public jvmtiError GetClassFields(JniEnvironment nativeEnvironment, ReferenceTypeId declaringType, out FieldId[] fields)
{
fields = null;
using (var @class = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, declaringType))
{
if ([email protected])
return jvmtiError.InvalidClass;
int fieldsCount;
IntPtr fieldsPtr;
jvmtiError error = RawInterface.GetClassFields(this, @class.Value, out fieldsCount, out fieldsPtr);
if (error != jvmtiError.None)
return error;
try
{
List<FieldId> fieldList = new List<FieldId>();
unsafe
{
jfieldID* fieldHandles = (jfieldID*)fieldsPtr;
for (int i = 0; i < fieldsCount; i++)
{
if (fieldHandles[i] == jfieldID.Null)
continue;
fieldList.Add(fieldHandles[i]);
}
}
fields = fieldList.ToArray();
return jvmtiError.None;
}
finally
{
Deallocate(fieldsPtr);
}
}
}
public jvmtiError GetClassMethods(JniEnvironment nativeEnvironment, ReferenceTypeId declaringType, out MethodId[] methods)
{
methods = null;
using (var @class = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, declaringType))
{
if ([email protected])
return jvmtiError.InvalidClass;
int methodsCount;
IntPtr methodsPtr;
jvmtiError error = RawInterface.GetClassMethods(this, @class.Value, out methodsCount, out methodsPtr);
if (error != jvmtiError.None)
return error;
try
{
List<MethodId> methodList = new List<MethodId>();
unsafe
{
jmethodID* methodHandles = (jmethodID*)methodsPtr;
for (int i = 0; i < methodsCount; i++)
{
if (methodHandles[i] == jmethodID.Null)
continue;
methodList.Add(new MethodId(methodHandles[i].Handle));
}
}
methods = methodList.ToArray();
return jvmtiError.None;
}
finally
{
Deallocate(methodsPtr);
}
}
}
public jvmtiError GetLoadedClasses(JniEnvironment nativeEnvironment, out TaggedReferenceTypeId[] classes)
{
classes = null;
int classCount;
IntPtr classesPtr;
jvmtiError error = RawInterface.GetLoadedClasses(this, out classCount, out classesPtr);
if (error != jvmtiError.None)
return error;
try
{
List<TaggedReferenceTypeId> classList = new List<TaggedReferenceTypeId>();
unsafe
{
jclass* classHandles = (jclass*)classesPtr;
for (int i = 0; i < classCount; i++)
{
if (classHandles[i] == jclass.Null)
continue;
classList.Add(VirtualMachine.TrackLocalClassReference(classHandles[i], this, nativeEnvironment, true));
}
}
classes = classList.ToArray();
return jvmtiError.None;
}
finally
{
Deallocate(classesPtr);
}
}
public override bool ProcessEvent(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventProcessor processor, ThreadId thread, TaggedReferenceTypeId @class, Location? location)
{
return true;
}
public Error SetEventInternal(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventKind eventKind, EventFilter filter)
{
EventRequestModifier locationModifier = default(EventRequestModifier);
EventRequestModifier stepModifier = default(EventRequestModifier);
switch (eventKind)
{
case EventKind.Breakpoint:
// we're going to need the location modifier to set the breakpoint
if (filter.Modifiers.Count == 0 || filter.Modifiers[0].Kind != ModifierKind.LocationFilter)
return Error.IllegalArgument;
locationModifier = filter.Modifiers[0];
break;
case EventKind.SingleStep:
// the first modifier contains the step properties
if (filter.Modifiers.Count == 0 || filter.Modifiers[0].Kind != ModifierKind.Step)
return Error.IllegalArgument;
stepModifier = filter.Modifiers[0];
break;
case EventKind.FramePop:
if (filter.InternalEventKind == EventKind.SingleStep)
goto case EventKind.SingleStep;
break;
default:
break;
}
lock (_eventRequests)
{
Dictionary<RequestId, EventFilter> requests;
if (!_eventRequests.TryGetValue(eventKind, out requests))
{
requests = new Dictionary<RequestId, EventFilter>();
_eventRequests.Add(eventKind, requests);
}
requests.Add(filter.RequestId, filter);
if (requests.Count == 1)
{
JvmEventType? eventToEnable = GetJvmEventType(eventKind);
if (eventToEnable != null)
{
jvmtiError error = Environment.SetEventNotificationMode(JvmEventMode.Enable, eventToEnable.Value);
if (error != jvmtiError.None)
return GetStandardError(error);
}
}
}
switch (eventKind)
{
case EventKind.Breakpoint:
{
Contract.Assert(locationModifier.Kind == ModifierKind.LocationFilter);
jmethodID methodId = locationModifier.Location.Method;
jlocation location = new jlocation((long)locationModifier.Location.Index);
jvmtiError error = Environment.SetBreakpoint(methodId, location);
if (error != jvmtiError.None)
return GetStandardError(error);
break;
}
case EventKind.FramePop:
if (filter.InternalEventKind == EventKind.SingleStep)
{
using (var thread = VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, stepModifier.Thread))
{
if (!thread.IsAlive)
return Error.InvalidThread;
jvmtiError error = environment.RawInterface.NotifyFramePop(environment, thread.Value, 0);
if (error != jvmtiError.None)
return GetStandardError(error);
}
}
break;
default:
break;
}
return Error.None;
}
public override bool ProcessEvent(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventProcessor processor, ThreadId thread, TaggedReferenceTypeId @class, Location? location)
{
_current++;
if (_current == _count)
{
_current = 0;
return true;
}
return false;
}
public abstract bool ProcessEvent(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventProcessor processor, ThreadId thread, TaggedReferenceTypeId @class, Location? location);
public jvmtiError GetMethodDeclaringClass(JniEnvironment nativeEnvironment, MethodId methodId, out TaggedReferenceTypeId declaringClass)
{
declaringClass = default(TaggedReferenceTypeId);
jclass classHandle;
jvmtiError error = RawInterface.GetMethodDeclaringClass(this, (jmethodID)methodId, out classHandle);
if (error != jvmtiError.None)
return error;
declaringClass = VirtualMachine.TrackLocalClassReference(classHandle, this, nativeEnvironment, true);
return jvmtiError.None;
}
public override bool ProcessEvent(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventProcessor processor, ThreadId thread, TaggedReferenceTypeId @class, Location? location)
{
if (!base.ProcessEvent(environment, nativeEnvironment, processor, thread, @class, location))
return false;
// Step Out is implemented with Frame Pop events set at the correct depth
if (_depth == StepDepth.Out)
{
if (location.HasValue && !location.Value.Method.Equals(_lastMethod))
{
_lastLocation = new jlocation((long)location.Value.Index);
_lastMethod = location.Value.Method;
UpdateLastLine(environment);
}
return true;
}
using (var threadHandle = environment.VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, thread))
{
int stackDepth;
JvmtiErrorHandler.ThrowOnFailure(environment.GetFrameCount(threadHandle.Value, out stackDepth));
if (_hasMethodInfo && stackDepth > _stackDepth)
{
bool convertToFramePop;
if (location.HasValue && (!_convertedToFramePop || !_framePopMethod.Equals(location.Value.Method)) && ShouldSkipCurrentMethod(processor.VirtualMachine, environment, nativeEnvironment, threadHandle.Value, stackDepth, location.Value, out convertToFramePop))
{
if (convertToFramePop)
{
// remove the single step event
JvmtiErrorHandler.ThrowOnFailure((jvmtiError)processor.ClearEventInternal(EventKind.FramePop, this.RequestId));
JvmtiErrorHandler.ThrowOnFailure((jvmtiError)processor.ClearEventInternal(EventKind.SingleStep, this.RequestId));
// set an actual step filter to respond when the thread arrives back in this frame
JvmtiErrorHandler.ThrowOnFailure((jvmtiError)processor.SetEventInternal(environment, nativeEnvironment, EventKind.FramePop, this));
_convertedToFramePop = true;
_framePopMethod = location.Value.Method;
}
return false;
}
else
{
_convertedToFramePop = false;
return true;
}
}
else if (stackDepth == _stackDepth)
{
if (_size == StepSize.Statement && _disassembledMethod != null)
{
int instructionIndex = _disassembledMethod.Instructions.FindIndex(i => (uint)i.Offset == location.Value.Index);
if (instructionIndex >= 0 && _evaluationStackDepths != null && (_evaluationStackDepths[instructionIndex] ?? 0) != 0)
{
return false;
}
else if (instructionIndex >= 0 && _disassembledMethod.Instructions[instructionIndex].OpCode.FlowControl == JavaFlowControl.Branch)
{
// follow branch instructions before stopping
return false;
}
}
else if (_lastLine != null)
{
// see if we're on the same line
LineNumberData[] lines;
jvmtiError error = environment.GetLineNumberTable(location.Value.Method, out lines);
if (error == jvmtiError.None)
{
LineNumberData entry = lines.LastOrDefault(i => i.LineCodeIndex <= (long)location.Value.Index);
if (entry.LineNumber == _lastLine)
return false;
}
}
}
if (location.HasValue)
{
_lastLocation = new jlocation((long)location.Value.Index);
_lastMethod = location.Value.Method;
UpdateLastLine(environment);
}
_stackDepth = stackDepth;
return true;
}
}
public jvmtiError GetSourceFileName(JniEnvironment nativeEnvironment, ReferenceTypeId classId, out string sourceName)
{
sourceName = null;
using (var classHandle = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, classId))
{
if (!classHandle.IsAlive)
return jvmtiError.InvalidClass;
IntPtr sourceNamePtr;
jvmtiError error = RawInterface.GetSourceFileName(this, classHandle.Value, out sourceNamePtr);
if (error != jvmtiError.None)
return error;
try
{
unsafe
{
if (sourceNamePtr != IntPtr.Zero)
sourceName = ModifiedUTF8Encoding.GetString((byte*)sourceNamePtr);
}
return jvmtiError.None;
}
finally
{
Deallocate(sourceNamePtr);
}
}
}
public jvmtiError GetStackTrace(JniEnvironment nativeEnvironment, ThreadId threadId, int startDepth, int maxFrameCount, out FrameLocationData[] frames)
{
frames = null;
using (var thread = VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, threadId))
{
if (!thread.IsAlive)
return jvmtiError.InvalidThread;
jvmtiFrameInfo[] frameBuffer = new jvmtiFrameInfo[maxFrameCount];
int frameCount;
jvmtiError error = RawInterface.GetStackTrace(this, thread.Value, startDepth, maxFrameCount, frameBuffer, out frameCount);
if (error != jvmtiError.None)
return error;
var frameData = new FrameLocationData[frameCount];
for (int i = 0; i < frameCount; i++)
{
TaggedReferenceTypeId declaringClass;
MethodId method = new MethodId(frameBuffer[i]._method.Handle);
ulong index = (ulong)frameBuffer[i]._location.Value;
error = GetMethodDeclaringClass(nativeEnvironment, method, out declaringClass);
if (error != jvmtiError.None)
return error;
FrameId frameId = new FrameId(startDepth + i);
Location location = new Location(declaringClass, method, index);
frameData[i] = new FrameLocationData(frameId, location);
}
frames = frameData;
return jvmtiError.None;
}
}
public jvmtiError GetImplementedInterfaces(JniEnvironment nativeEnvironment, jclass classHandle, out TaggedReferenceTypeId[] interfaces)
{
interfaces = null;
int interfacesCount;
IntPtr interfacesPtr;
jvmtiError error = RawInterface.GetImplementedInterfaces(this, classHandle, out interfacesCount, out interfacesPtr);
if (error != jvmtiError.None)
return error;
try
{
List<TaggedReferenceTypeId> interfaceList = new List<TaggedReferenceTypeId>();
unsafe
{
jclass* interfaceHandles = (jclass*)interfacesPtr;
for (int i = 0; i < interfacesCount; i++)
{
if (interfaceHandles[i] == jclass.Null)
continue;
interfaceList.Add(VirtualMachine.TrackLocalClassReference(interfaceHandles[i], this, nativeEnvironment, true));
}
}
interfaces = interfaceList.ToArray();
return jvmtiError.None;
}
finally
{
Deallocate(interfacesPtr);
}
}
public Error SetEvent(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventKind eventKind, SuspendPolicy suspendPolicy, ImmutableList<EventRequestModifier> modifiers, bool internalRequest, out RequestId requestId)
{
Contract.Requires<ArgumentNullException>(modifiers != null, "modifiers");
requestId = default(RequestId);
EventKind internalEventKind = eventKind;
EventRequestModifier locationModifier = default(EventRequestModifier);
EventRequestModifier stepModifier = default(EventRequestModifier);
switch (eventKind)
{
case EventKind.Breakpoint:
// we're going to need the location modifier to set the breakpoint
if (modifiers.Count == 0 || modifiers[0].Kind != ModifierKind.LocationFilter)
return Error.IllegalArgument;
locationModifier = modifiers[0];
break;
case EventKind.SingleStep:
// the first modifier contains the step properties
if (modifiers.Count == 0 || modifiers[0].Kind != ModifierKind.Step)
return Error.IllegalArgument;
stepModifier = modifiers[0];
if (stepModifier.StepDepth == StepDepth.Out)
{
// we want to attach the filter as a frame pop request instead of a step request
eventKind = EventKind.FramePop;
internalEventKind = EventKind.SingleStep;
}
break;
default:
break;
}
requestId = new RequestId(Interlocked.Increment(ref _nextRequestId));
if (internalRequest)
requestId = new RequestId(-requestId.Id);
EventFilter filter = EventFilter.CreateFilter(internalEventKind, environment, nativeEnvironment, requestId, suspendPolicy, modifiers);
return SetEventInternal(environment, nativeEnvironment, eventKind, filter);
}
public jvmtiError GetClassSignature(JniEnvironment nativeEnvironment, ReferenceTypeId classId, out string signature, out string genericSignature)
{
signature = null;
genericSignature = null;
using (var classHandle = VirtualMachine.GetLocalReferenceForClass(nativeEnvironment, classId))
{
if (!classHandle.IsAlive)
return jvmtiError.InvalidClass;
return GetClassSignature(classHandle.Value, out signature, out genericSignature);
}
}
private jvmtiError ApplySuspendPolicy(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, SuspendPolicy policy, ThreadId eventThread)
{
if (policy == SuspendPolicy.EventThread && eventThread == default(ThreadId))
{
return jvmtiError.InvalidThread;
}
switch (policy)
{
case SuspendPolicy.None:
return jvmtiError.None;
case SuspendPolicy.EventThread:
return environment.SuspendThread(nativeEnvironment, eventThread);
case SuspendPolicy.All:
ThreadId[] requestList;
JvmtiErrorHandler.ThrowOnFailure(environment.GetAllThreads(nativeEnvironment, out requestList));
jvmtiError[] errors;
return environment.SuspendThreads(nativeEnvironment, requestList, out errors);
default:
throw new ArgumentException("Invalid suspend policy.");
}
}
public override bool ProcessEvent(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventProcessor processor, ThreadId thread, TaggedReferenceTypeId @class, Location? location)
{
if (!location.HasValue)
return false;
return _location.Index == location.Value.Index
&& _location.Class == location.Value.Class
&& _location.Method == location.Value.Method;
}
private jthread CreateAgentThread(JniEnvironment nativeEnvironment)
{
jclass @class = nativeEnvironment.FindClass("java/lang/Thread");
if (@class == jclass.Null)
throw new Exception("ERROR: JNI: Cannot find java/lang/Thread with FindClass.");
jmethodID method = nativeEnvironment.GetMethodId(@class, "<init>", "()V");
if (method == jmethodID.Null)
throw new Exception("Cannot find Thread constructor method.");
jthread result = (jthread)nativeEnvironment.NewObject(@class, method);
if (result == jthread.Null)
throw new Exception("Cannot create new Thread object");
jthread agentThread = (jthread)nativeEnvironment.NewGlobalReference(result);
if (result == jthread.Null)
throw new Exception("Cannot create a new global reference for the agent thread.");
// don't need to keep the local reference around
nativeEnvironment.DeleteLocalReference(result);
return agentThread;
}
public jvmtiError GetTopThreadGroups(JniEnvironment nativeEnvironment, out ThreadGroupId[] threadGroups)
{
threadGroups = null;
int threadsGroupsCount;
IntPtr threadsGroupsPtr;
jvmtiError error = RawInterface.GetTopThreadGroups(this, out threadsGroupsCount, out threadsGroupsPtr);
if (error != jvmtiError.None)
return error;
try
{
List<ThreadGroupId> threadGroupList = new List<ThreadGroupId>();
unsafe
{
jthreadGroup* threadGroupHandles = (jthreadGroup*)threadsGroupsPtr;
for (int i = 0; i < threadsGroupsCount; i++)
{
if (threadGroupHandles[i] == jthreadGroup.Null)
continue;
threadGroupList.Add((ThreadGroupId)VirtualMachine.TrackLocalObjectReference(threadGroupHandles[i], this, nativeEnvironment, true));
}
}
threadGroups = threadGroupList.ToArray();
return jvmtiError.None;
}
finally
{
Deallocate(threadsGroupsPtr);
}
}
