status_t
ResolveValueNodeValueJob::_ResolveNodeValue()
{
// get the node child and parent node
AutoLocker<ValueNodeContainer> containerLocker(fContainer);
ValueNodeChild* nodeChild = fValueNode->NodeChild();
BReference<ValueNodeChild> nodeChildReference(nodeChild);
ValueNode* parentNode = nodeChild->Parent();
BReference<ValueNode> parentNodeReference(parentNode);
// Check whether the node child location has been resolved already
// (successfully).
status_t nodeChildResolutionState = nodeChild->LocationResolutionState();
bool nodeChildDone = nodeChildResolutionState != VALUE_NODE_UNRESOLVED;
if (nodeChildDone && nodeChildResolutionState != B_OK)
return nodeChildResolutionState;
// If the child node location has not been resolved yet, check whether the
// parent node location and value have been resolved already (successfully).
bool parentDone = true;
if (!nodeChildDone && parentNode != NULL) {
status_t parentResolutionState
= parentNode->LocationAndValueResolutionState();
parentDone = parentResolutionState != VALUE_NODE_UNRESOLVED;
if (parentDone && parentResolutionState != B_OK)
return parentResolutionState;
}
containerLocker.Unlock();
// resolve the parent node location and value, if necessary
if (!parentDone) {
status_t error = _ResolveParentNodeValue(parentNode);
if (error != B_OK) {
TRACE_LOCALS("ResolveValueNodeValueJob::_ResolveNodeValue(): value "
"node: %p (\"%s\"): _ResolveParentNodeValue(%p) failed\n",
fValueNode, fValueNode->Name().String(), parentNode);
return error;
}
}
// resolve the node child location, if necessary
if (!nodeChildDone) {
status_t error = _ResolveNodeChildLocation(nodeChild);
if (error != B_OK) {
TRACE_LOCALS("ResolveValueNodeValueJob::_ResolveNodeValue(): value "
"node: %p (\"%s\"): _ResolveNodeChildLocation(%p) failed\n",
fValueNode, fValueNode->Name().String(), nodeChild);
return error;
}
}
// resolve the node location and value
ValueLoader valueLoader(fArchitecture, fDebuggerInterface,
fTypeInformation, fCpuState);
ValueLocation* location;
Value* value;
status_t error = fValueNode->ResolvedLocationAndValue(&valueLoader,
location, value);
if (error != B_OK) {
TRACE_LOCALS("ResolveValueNodeValueJob::_ResolveNodeValue(): value "
"node: %p (\"%s\"): fValueNode->ResolvedLocationAndValue() "
"failed\n", fValueNode, fValueNode->Name().String());
return error;
}
BReference<ValueLocation> locationReference(location, true);
BReference<Value> valueReference(value, true);
// set location and value on the node
containerLocker.Lock();
status_t nodeResolutionState
= fValueNode->LocationAndValueResolutionState();
if (nodeResolutionState != VALUE_NODE_UNRESOLVED)
return nodeResolutionState;
fValueNode->SetLocationAndValue(location, value, B_OK);
containerLocker.Unlock();
return B_OK;
}
