src/hotspot/share/gc/shared/oopStorageSet.cpp

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 * version 2 for more details (a copy is included in the LICENSE file that
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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 "gc/shared/oopStorage.hpp"
#include "gc/shared/oopStorageSet.hpp"
#include "utilities/debug.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/macros.hpp"

OopStorage* OopStorageSet::_storages[all_count] = {};

OopStorage* OopStorageSet::create_strong(const char* name, MemTag mem_tag) {
  static uint registered_strong = 0;
  assert(registered_strong < strong_count, "More registered strong storages than slots");
  OopStorage* storage = OopStorage::create(name, mem_tag);
  _storages[strong_start + registered_strong++] = storage;
  return storage;
}

OopStorage* OopStorageSet::create_weak(const char* name, MemTag mem_tag) {
  static uint registered_weak = 0;
  assert(registered_weak < weak_count, "More registered strong storages than slots");
  OopStorage* storage = OopStorage::create(name, mem_tag);
  _storages[weak_start + registered_weak++] = storage;
  return storage;
}


void OopStorageSet::fill_strong(OopStorage* to[strong_count]) {
  for (uint i = 0; i < OopStorageSet::strong_count; i++) {
    to[i] = get_storage(strong_start + i);
  }
}

void OopStorageSet::fill_weak(OopStorage* to[weak_count]) {
  for (uint i = 0; i < OopStorageSet::weak_count; i++) {
    to[i] = get_storage(weak_start + i);
  }
}

void OopStorageSet::fill_all(OopStorage* to[all_count]) {
  for (uint i = 0; i < OopStorageSet::all_count; i++) {
    to[i] = get_storage(all_start + i);
  }
}

OopStorage* OopStorageSet::get_storage(uint index) {
  verify_initialized(index);
  return _storages[index];
}

template<typename E>
OopStorage* OopStorageSet::get_storage(E id) {
  assert(EnumRange<E>().first() <= id, "invalid id");
  assert(id <= EnumRange<E>().last(), "invalid id");
  return get_storage(static_cast<uint>(id));
}

template OopStorage* OopStorageSet::get_storage(StrongId);
template OopStorage* OopStorageSet::get_storage(WeakId);
template OopStorage* OopStorageSet::get_storage(Id);

bool OopStorageSet::print_containing(const void* addr, outputStream* st) {
  if (addr != nullptr) {
    const void* aligned_addr = align_down(addr, alignof(oop));
    for (OopStorage* storage : Range<Id>()) {
      // Check for null for extra safety: might get here while handling error
      // before storage initialization.
      if ((storage != nullptr) && storage->print_containing((oop*) aligned_addr, st)) {
        if (aligned_addr != addr) {
          st->print_cr(" (unaligned)");
        } else {
          st->cr();
        }
        return true;
      }
    }
  }
  return false;
}

#ifdef ASSERT

void OopStorageSet::verify_initialized(uint index) {
  assert(index < ARRAY_SIZE(_storages), "invalid index");
  assert(_storages[index] != nullptr, "oopstorage_init not yet called");
}

#endif // ASSERT