void TypeProfilerLog::visit(SlotVisitor& visitor) { for (LogEntry* entry = m_logStartPtr; entry != m_currentLogEntryPtr; ++entry) { visitor.appendUnbarriered(entry->value); if (StructureID id = entry->structureID) { Structure* structure = visitor.heap()->structureIDTable().get(id); visitor.appendUnbarriered(structure); } } }
void Worklist::visitChildren(SlotVisitor& visitor, CodeBlockSet& codeBlocks) { VM* vm = visitor.heap()->vm(); for (PlanMap::iterator iter = m_plans.begin(); iter != m_plans.end(); ++iter) { Plan* plan = iter->value.get(); if (&plan->vm != vm) continue; iter->key.visitChildren(codeBlocks); iter->value->visitChildren(visitor, codeBlocks); } for (unsigned i = m_threads.size(); i--;) { ThreadData* data = m_threads[i].get(); Safepoint* safepoint = data->m_safepoint; if (safepoint && &safepoint->vm() == vm) safepoint->visitChildren(visitor); } }
void Worklist::visitWeakReferences(SlotVisitor& visitor) { VM* vm = visitor.heap()->vm(); { LockHolder locker(m_lock); for (PlanMap::iterator iter = m_plans.begin(); iter != m_plans.end(); ++iter) { Plan* plan = iter->value.get(); if (&plan->vm != vm) continue; plan->checkLivenessAndVisitChildren(visitor); } } // This loop doesn't need locking because: // (1) no new threads can be added to m_threads. Hence, it is immutable and needs no locks. // (2) ThreadData::m_safepoint is protected by that thread's m_rightToRun which we must be // holding here because of a prior call to suspendAllThreads(). for (unsigned i = m_threads.size(); i--;) { ThreadData* data = m_threads[i].get(); Safepoint* safepoint = data->m_safepoint; if (safepoint && &safepoint->vm() == vm) safepoint->checkLivenessAndVisitChildren(visitor); } }