25 #include "precompiled.hpp"
26 #include "classfile/javaClasses.inline.hpp"
27 #include "gc/g1/g1CollectedHeap.hpp"
28 #include "gc/g1/g1StringDedup.hpp"
29 #include "gc/g1/g1StringDedupQueue.hpp"
30 #include "gc/shared/gcLocker.hpp"
31 #include "oops/oop.inline.hpp"
32 #include "runtime/atomic.inline.hpp"
33 #include "runtime/mutexLocker.hpp"
34 #include "utilities/stack.inline.hpp"
35
36 G1StringDedupQueue* G1StringDedupQueue::_queue = NULL;
37 const size_t G1StringDedupQueue::_max_size = 1000000; // Max number of elements per queue
38 const size_t G1StringDedupQueue::_max_cache_size = 0; // Max cache size per queue
39
40 G1StringDedupQueue::G1StringDedupQueue() :
41 _cursor(0),
42 _cancel(false),
43 _empty(true),
44 _dropped(0) {
45 _nqueues = MAX2(ParallelGCThreads, (size_t)1);
46 _queues = NEW_C_HEAP_ARRAY(G1StringDedupWorkerQueue, _nqueues, mtGC);
47 for (size_t i = 0; i < _nqueues; i++) {
48 new (_queues + i) G1StringDedupWorkerQueue(G1StringDedupWorkerQueue::default_segment_size(), _max_cache_size, _max_size);
49 }
50 }
51
52 G1StringDedupQueue::~G1StringDedupQueue() {
53 ShouldNotReachHere();
54 }
55
56 void G1StringDedupQueue::create() {
57 assert(_queue == NULL, "One string deduplication queue allowed");
58 _queue = new G1StringDedupQueue();
59 }
60
61 void G1StringDedupQueue::wait() {
62 MonitorLockerEx ml(StringDedupQueue_lock, Mutex::_no_safepoint_check_flag);
63 while (_queue->_empty && !_queue->_cancel) {
64 ml.wait(Mutex::_no_safepoint_check_flag);
65 }
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25 #include "precompiled.hpp"
26 #include "classfile/javaClasses.inline.hpp"
27 #include "gc/g1/g1CollectedHeap.hpp"
28 #include "gc/g1/g1StringDedup.hpp"
29 #include "gc/g1/g1StringDedupQueue.hpp"
30 #include "gc/shared/gcLocker.hpp"
31 #include "oops/oop.inline.hpp"
32 #include "runtime/atomic.inline.hpp"
33 #include "runtime/mutexLocker.hpp"
34 #include "utilities/stack.inline.hpp"
35
36 G1StringDedupQueue* G1StringDedupQueue::_queue = NULL;
37 const size_t G1StringDedupQueue::_max_size = 1000000; // Max number of elements per queue
38 const size_t G1StringDedupQueue::_max_cache_size = 0; // Max cache size per queue
39
40 G1StringDedupQueue::G1StringDedupQueue() :
41 _cursor(0),
42 _cancel(false),
43 _empty(true),
44 _dropped(0) {
45 _nqueues = (size_t)ParallelGCThreads;
46 _queues = NEW_C_HEAP_ARRAY(G1StringDedupWorkerQueue, _nqueues, mtGC);
47 for (size_t i = 0; i < _nqueues; i++) {
48 new (_queues + i) G1StringDedupWorkerQueue(G1StringDedupWorkerQueue::default_segment_size(), _max_cache_size, _max_size);
49 }
50 }
51
52 G1StringDedupQueue::~G1StringDedupQueue() {
53 ShouldNotReachHere();
54 }
55
56 void G1StringDedupQueue::create() {
57 assert(_queue == NULL, "One string deduplication queue allowed");
58 _queue = new G1StringDedupQueue();
59 }
60
61 void G1StringDedupQueue::wait() {
62 MonitorLockerEx ml(StringDedupQueue_lock, Mutex::_no_safepoint_check_flag);
63 while (_queue->_empty && !_queue->_cancel) {
64 ml.wait(Mutex::_no_safepoint_check_flag);
65 }
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