387 // The current high-water-mark for inducing a GC.
388 // When committed memory of all metaspaces reaches this value,
389 // a GC is induced and the value is increased. Size is in bytes.
390 static volatile intptr_t _capacity_until_GC;
391
392 // For a CMS collection, signal that a concurrent collection should
393 // be started.
394 static bool _should_concurrent_collect;
395
396 static uint _shrink_factor;
397
398 static size_t shrink_factor() { return _shrink_factor; }
399 void set_shrink_factor(uint v) { _shrink_factor = v; }
400
401 public:
402
403 static void initialize();
404 static void post_initialize();
405
406 static size_t capacity_until_GC();
407 static size_t inc_capacity_until_GC(size_t v);
408 static size_t dec_capacity_until_GC(size_t v);
409
410 static bool should_concurrent_collect() { return _should_concurrent_collect; }
411 static void set_should_concurrent_collect(bool v) {
412 _should_concurrent_collect = v;
413 }
414
415 // The amount to increase the high-water-mark (_capacity_until_GC)
416 static size_t delta_capacity_until_GC(size_t bytes);
417
418 // Tells if we have can expand metaspace without hitting set limits.
419 static bool can_expand(size_t words, bool is_class);
420
421 // Returns amount that we can expand without hitting a GC,
422 // measured in words.
423 static size_t allowed_expansion();
424
425 // Calculate the new high-water mark at which to induce
426 // a GC.
427 static void compute_new_size();
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387 // The current high-water-mark for inducing a GC.
388 // When committed memory of all metaspaces reaches this value,
389 // a GC is induced and the value is increased. Size is in bytes.
390 static volatile intptr_t _capacity_until_GC;
391
392 // For a CMS collection, signal that a concurrent collection should
393 // be started.
394 static bool _should_concurrent_collect;
395
396 static uint _shrink_factor;
397
398 static size_t shrink_factor() { return _shrink_factor; }
399 void set_shrink_factor(uint v) { _shrink_factor = v; }
400
401 public:
402
403 static void initialize();
404 static void post_initialize();
405
406 static size_t capacity_until_GC();
407 static bool inc_capacity_until_GC(size_t v,
408 size_t* new_cap_until_GC = NULL,
409 size_t* old_cap_until_GC = NULL);
410 static size_t dec_capacity_until_GC(size_t v);
411
412 static bool should_concurrent_collect() { return _should_concurrent_collect; }
413 static void set_should_concurrent_collect(bool v) {
414 _should_concurrent_collect = v;
415 }
416
417 // The amount to increase the high-water-mark (_capacity_until_GC)
418 static size_t delta_capacity_until_GC(size_t bytes);
419
420 // Tells if we have can expand metaspace without hitting set limits.
421 static bool can_expand(size_t words, bool is_class);
422
423 // Returns amount that we can expand without hitting a GC,
424 // measured in words.
425 static size_t allowed_expansion();
426
427 // Calculate the new high-water mark at which to induce
428 // a GC.
429 static void compute_new_size();
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