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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * accompanied this code).

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inline HeapWord* G1OffsetTableContigSpace::allocate(size_t size) {

  HeapWord* res = ContiguousSpace::allocate(size);

  if (res != NULL) {

    _offsets.alloc_block(res, size);

  }

  return res;

}

// Because of the requirement of keeping "_offsets" up to date with the

// allocations, we sequentialize these with a lock.  Therefore, best if

// this is used for larger LAB allocations only.

inline HeapWord* G1OffsetTableContigSpace::par_allocate(size_t size) {

  MutexLocker x(&_par_alloc_lock);

  // This ought to be just "allocate", because of the lock above, but that

  // ContiguousSpace::allocate asserts that either the allocating thread

  // holds the heap lock or it is the VM thread and we're at a safepoint.

  // The best I (dld) could figure was to put a field in ContiguousSpace

  // meaning "locking at safepoint taken care of", and set/reset that

  // here.  But this will do for now, especially in light of the comment

  // above.  Perhaps in the future some lock-free manner of keeping the

  // coordination.

  HeapWord* res = ContiguousSpace::par_allocate(size);

  if (res != NULL) {

    _offsets.alloc_block(res, size);

  }

  return res;

}

inline HeapWord* G1OffsetTableContigSpace::block_start(const void* p) {

  return _offsets.block_start(p);

}

inline HeapWord*

G1OffsetTableContigSpace::block_start_const(const void* p) const {

  return _offsets.block_start_const(p);

}