jvmtiError
eventFilter_setStepFilter(HandlerNode *node, jint index,
jthread thread, jint size, jint depth)
{
jvmtiError error;
JNIEnv *env = getEnv();
StepFilter *filter = &FILTER(node, index).u.Step;
if (index >= FILTER_COUNT(node)) {
return AGENT_ERROR_ILLEGAL_ARGUMENT;
}
if (NODE_EI(node) != EI_SINGLE_STEP) {
return AGENT_ERROR_ILLEGAL_ARGUMENT;
}
/* Create a thread ref that will live beyond */
/* the end of this call */
saveGlobalRef(env, thread, &(filter->thread));
error = stepControl_beginStep(env, filter->thread, size, depth, node);
if (error != JVMTI_ERROR_NONE) {
tossGlobalRef(env, &(filter->thread));
return error;
}
FILTER(node, index).modifier = JDWP_REQUEST_MODIFIER(Step);
filter->depth = depth;
filter->size = size;
return JVMTI_ERROR_NONE;
}
/* Deletes the global reference that commonRef_idToRef() created */
void
commonRef_idToRef_delete(JNIEnv *env, jobject ref)
{
if ( ref==NULL ) {
return;
}
tossGlobalRef(env, &ref);
}
/* Deletes the global reference that commonRef_idToRef() created */
void
commonRef_idToRef_delete(JNIEnv *env, jobject ref)
{
if ( ref==NULL )
return;
if ( env==NULL )
env = getEnv();
tossGlobalRef(env, &ref);
}
static void
handleSuspendThreadCommand(JNIEnv* env, SuspendThreadCommand *command)
{
/*
* For the moment, there's nothing that can be done with the
* return code, so we don't check it here.
*/
(void)threadControl_suspendThread(command->thread, JNI_TRUE);
tossGlobalRef(env, &(command->thread));
}
/**
* Free up global refs held by the filter.
* free things up at the JNI level if needed.
*/
static jvmtiError
clearFilters(HandlerNode *node)
{
JNIEnv *env = getEnv();
jint i;
jvmtiError error = JVMTI_ERROR_NONE;
Filter *filter = FILTERS_ARRAY(node);
for (i = 0; i < FILTER_COUNT(node); ++i, ++filter) {
switch (filter->modifier) {
case JDWP_REQUEST_MODIFIER(ThreadOnly):
if ( filter->u.ThreadOnly.thread != NULL ) {
tossGlobalRef(env, &(filter->u.ThreadOnly.thread));
}
break;
case JDWP_REQUEST_MODIFIER(LocationOnly):
tossGlobalRef(env, &(filter->u.LocationOnly.clazz));
break;
case JDWP_REQUEST_MODIFIER(FieldOnly):
tossGlobalRef(env, &(filter->u.FieldOnly.clazz));
break;
case JDWP_REQUEST_MODIFIER(ExceptionOnly):
if ( filter->u.ExceptionOnly.exception != NULL ) {
tossGlobalRef(env, &(filter->u.ExceptionOnly.exception));
}
break;
case JDWP_REQUEST_MODIFIER(InstanceOnly):
if ( filter->u.InstanceOnly.instance != NULL ) {
tossGlobalRef(env, &(filter->u.InstanceOnly.instance));
}
break;
case JDWP_REQUEST_MODIFIER(ClassOnly):
tossGlobalRef(env, &(filter->u.ClassOnly.clazz));
break;
case JDWP_REQUEST_MODIFIER(ClassMatch):
jvmtiDeallocate(filter->u.ClassMatch.classPattern);
break;
case JDWP_REQUEST_MODIFIER(ClassExclude):
jvmtiDeallocate(filter->u.ClassExclude.classPattern);
break;
case JDWP_REQUEST_MODIFIER(Step): {
jthread thread = filter->u.Step.thread;
error = stepControl_endStep(thread);
if (error == JVMTI_ERROR_NONE) {
tossGlobalRef(env, &(filter->u.Step.thread));
}
break;
}
}
}
if (error == JVMTI_ERROR_NONE) {
FILTER_COUNT(node) = 0; /* blast so we don't clear again */
}
return error;
}
static void
handleFrameEventCommandSingle(JNIEnv* env, PacketOutputStream *out,
FrameEventCommandSingle *command)
{
if (command->typeKey) {
(void)outStream_writeByte(out, JDWP_EVENT(METHOD_EXIT_WITH_RETURN_VALUE));
} else {
(void)outStream_writeByte(out, eventIndex2jdwp(command->ei));
}
(void)outStream_writeInt(out, command->id);
(void)outStream_writeObjectRef(env, out, command->thread);
writeCodeLocation(out, command->clazz, command->method, command->location);
if (command->typeKey) {
(void)outStream_writeValue(env, out, command->typeKey, command->returnValue);
if (isObjectTag(command->typeKey) &&
command->returnValue.l != NULL) {
tossGlobalRef(env, &(command->returnValue.l));
}
}
tossGlobalRef(env, &(command->thread));
tossGlobalRef(env, &(command->clazz));
}
static void
tossEventInfoRefs(JNIEnv *env, EventInfo *evinfo)
{
char sig;
if ( evinfo->thread != NULL ) {
tossGlobalRef(env, &(evinfo->thread));
}
if ( evinfo->clazz != NULL ) {
tossGlobalRef(env, &(evinfo->clazz));
}
if ( evinfo->object != NULL ) {
tossGlobalRef(env, &(evinfo->object));
}
switch (evinfo->ei) {
case EI_FIELD_MODIFICATION:
if ( evinfo->u.field_modification.field_clazz != NULL ) {
tossGlobalRef(env, &(evinfo->u.field_modification.field_clazz));
}
sig = evinfo->u.field_modification.signature_type;
if ((sig == JDWP_TAG(ARRAY)) || (sig == JDWP_TAG(OBJECT))) {
if ( evinfo->u.field_modification.new_value.l != NULL ) {
tossGlobalRef(env, &(evinfo->u.field_modification.new_value.l));
}
}
break;
case EI_FIELD_ACCESS:
if ( evinfo->u.field_access.field_clazz != NULL ) {
tossGlobalRef(env, &(evinfo->u.field_access.field_clazz));
}
break;
case EI_EXCEPTION:
if ( evinfo->u.exception.catch_clazz != NULL ) {
tossGlobalRef(env, &(evinfo->u.exception.catch_clazz));
}
break;
default:
break;
}
}
static void
handleReportInvokeDoneCommand(JNIEnv* env, ReportInvokeDoneCommand *command)
{
invoker_completeInvokeRequest(command->thread);
tossGlobalRef(env, &(command->thread));
}