8202021: Improve variable naming in ReferenceProcesso
Reviewed-by: sangheki, sjohanss
/*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#include "precompiled.hpp"
#include "gc/g1/g1CollectedHeap.hpp"
#include "gc/g1/g1FullCollector.hpp"
#include "gc/g1/g1FullGCMarker.hpp"
#include "gc/g1/g1FullGCOopClosures.inline.hpp"
#include "gc/g1/g1FullGCReferenceProcessorExecutor.hpp"
#include "gc/shared/gcTraceTime.inline.hpp"
#include "gc/shared/referenceProcessor.hpp"
G1FullGCReferenceProcessingExecutor::G1FullGCReferenceProcessingExecutor(G1FullCollector* collector) :
_collector(collector),
_reference_processor(collector->reference_processor()),
_old_mt_degree(_reference_processor->num_queues()) {
if (_reference_processor->processing_is_mt()) {
_reference_processor->set_active_mt_degree(_collector->workers());
}
}
G1FullGCReferenceProcessingExecutor::~G1FullGCReferenceProcessingExecutor() {
if (_reference_processor->processing_is_mt()) {
_reference_processor->set_active_mt_degree(_old_mt_degree);
}
}
G1FullGCReferenceProcessingExecutor::G1RefProcTaskProxy::G1RefProcTaskProxy(ProcessTask& proc_task,
G1FullCollector* collector) :
AbstractGangTask("G1 reference processing task"),
_proc_task(proc_task),
_collector(collector),
_terminator(_collector->workers(), _collector->oop_queue_set()) { }
void G1FullGCReferenceProcessingExecutor::G1RefProcTaskProxy::work(uint worker_id) {
G1FullGCMarker* marker = _collector->marker(worker_id);
G1IsAliveClosure is_alive(_collector->mark_bitmap());
G1FullKeepAliveClosure keep_alive(marker);
_proc_task.work(worker_id,
is_alive,
keep_alive,
*marker->stack_closure());
}
G1FullGCReferenceProcessingExecutor::G1RefEnqueueTaskProxy::G1RefEnqueueTaskProxy(EnqueueTask& enq_task) :
AbstractGangTask("G1 reference enqueue task"),
_enq_task(enq_task) { }
void G1FullGCReferenceProcessingExecutor::G1RefEnqueueTaskProxy::work(uint worker_id) {
_enq_task.work(worker_id);
}
void G1FullGCReferenceProcessingExecutor::run_task(AbstractGangTask* task) {
G1CollectedHeap::heap()->workers()->run_task(task, _collector->workers());
}
void G1FullGCReferenceProcessingExecutor::execute(ProcessTask& proc_task) {
G1RefProcTaskProxy proc_task_proxy(proc_task, _collector);
run_task(&proc_task_proxy);
}
// Driver routine for parallel reference processing.
void G1FullGCReferenceProcessingExecutor::execute(EnqueueTask& enq_task) {
G1RefEnqueueTaskProxy enq_task_proxy(enq_task);
run_task(&enq_task_proxy);
}
void G1FullGCReferenceProcessingExecutor::execute(STWGCTimer* timer, G1FullGCTracer* tracer) {
GCTraceTime(Debug, gc, phases) debug("Phase 1: Reference Processing", timer);
// Process reference objects found during marking.
G1FullGCMarker* marker = _collector->marker(0);
G1IsAliveClosure is_alive(_collector->mark_bitmap());
G1FullKeepAliveClosure keep_alive(marker);
ReferenceProcessorPhaseTimes pt(timer, _reference_processor->num_queues());
AbstractRefProcTaskExecutor* executor = _reference_processor->processing_is_mt() ? this : NULL;
// Process discovered references, use this executor if multi-threaded
// processing is enabled.
const ReferenceProcessorStats& stats =
_reference_processor->process_discovered_references(&is_alive,
&keep_alive,
marker->stack_closure(),
executor,
&pt);
tracer->report_gc_reference_stats(stats);
pt.print_all_references();
assert(marker->oop_stack()->is_empty(), "Should be no oops on the stack");
// Now enqueue the references.
_reference_processor->enqueue_discovered_references(executor, &pt);
pt.print_enqueue_phase();
}