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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 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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#ifndef SHARE_VM_OOPS_OBJARRAYKLASS_INLINE_HPP

#define SHARE_VM_OOPS_OBJARRAYKLASS_INLINE_HPP

#include "memory/memRegion.hpp"

#include "memory/iterator.inline.hpp"

#include "oops/arrayKlass.hpp"

#include "oops/klass.hpp"

#include "oops/objArrayKlass.hpp"

#include "oops/objArrayOop.inline.hpp"

#include "oops/oop.inline.hpp"

#include "utilities/macros.hpp"

template <bool nv, typename T, class OopClosureType>

void ObjArrayKlass::oop_oop_iterate_elements_specialized(objArrayOop a, OopClosureType* closure) {

  T* p         = (T*)a->base();

  T* const end = p + a->length();

  for (;p < end; p++) {

    Devirtualizer<nv>::do_oop(closure, p);

  }

}

template <bool nv, typename T, class OopClosureType>

void ObjArrayKlass::oop_oop_iterate_elements_specialized_bounded(

    objArrayOop a, OopClosureType* closure, void* low, void* high) {

  T* const l = (T*)low;

  T* const h = (T*)high;

  T* p   = (T*)a->base();

  T* end = p + a->length();

  if (p < l) {

    p = l;

  }

  if (end > h) {

    end = h;

  }

  for (;p < end; ++p) {

    Devirtualizer<nv>::do_oop(closure, p);

  }

}

template <bool nv, class OopClosureType>

void ObjArrayKlass::oop_oop_iterate_elements(objArrayOop a, OopClosureType* closure) {

  if (UseCompressedOops) {

    oop_oop_iterate_elements_specialized<nv, narrowOop>(a, closure);

  } else {

    oop_oop_iterate_elements_specialized<nv, oop>(a, closure);

  }

}

template <bool nv, class OopClosureType>

void ObjArrayKlass::oop_oop_iterate_elements_bounded(objArrayOop a, OopClosureType* closure, MemRegion mr) {

  if (UseCompressedOops) {

    oop_oop_iterate_elements_specialized_bounded<nv, narrowOop>(a, closure, mr.start(), mr.end());

  } else {

    oop_oop_iterate_elements_specialized_bounded<nv, oop>(a, closure, mr.start(), mr.end());

  }

}

template <bool nv, typename OopClosureType>

void ObjArrayKlass::oop_oop_iterate(oop obj, OopClosureType* closure) {

  assert (obj->is_array(), "obj must be array");

  objArrayOop a = objArrayOop(obj);

  if (Devirtualizer<nv>::do_metadata(closure)) {

    Devirtualizer<nv>::do_klass(closure, obj->klass());

  }

  oop_oop_iterate_elements<nv>(a, closure);

}

template <bool nv, typename OopClosureType>

void ObjArrayKlass::oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr) {

  assert(obj->is_array(), "obj must be array");

  objArrayOop a  = objArrayOop(obj);

  if (Devirtualizer<nv>::do_metadata(closure)) {

    Devirtualizer<nv>::do_klass(closure, a->klass());

  }

  oop_oop_iterate_elements_bounded<nv>(a, closure, mr);

}

template <bool nv, typename T, class OopClosureType>

void ObjArrayKlass::oop_oop_iterate_range_specialized(objArrayOop a, OopClosureType* closure, int start, int end) {

  T* low = start == 0 ? cast_from_oop<T*>(a) : a->obj_at_addr<T>(start);

  T* high = (T*)a->base() + end;

  oop_oop_iterate_elements_specialized_bounded<nv, T>(a, closure, low, high);

}

// Like oop_oop_iterate but only iterates over a specified range and only used

// for objArrayOops.

template <bool nv, class OopClosureType>

void ObjArrayKlass::oop_oop_iterate_range(oop obj, OopClosureType* closure, int start, int end) {

  assert(obj->is_array(), "obj must be array");

  objArrayOop a  = objArrayOop(obj);

  if (UseCompressedOops) {

    oop_oop_iterate_range_specialized<nv, narrowOop>(a, closure, start, end);

  } else {

    oop_oop_iterate_range_specialized<nv, oop>(a, closure, start, end);

  }

}

#define ALL_OBJ_ARRAY_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix)    \

  OOP_OOP_ITERATE_DEFN(             ObjArrayKlass, OopClosureType, nv_suffix)  \

  OOP_OOP_ITERATE_DEFN_BOUNDED(     ObjArrayKlass, OopClosureType, nv_suffix)  \

  OOP_OOP_ITERATE_DEFN_RANGE(       ObjArrayKlass, OopClosureType, nv_suffix)  \

  OOP_OOP_ITERATE_DEFN_NO_BACKWARDS(ObjArrayKlass, OopClosureType, nv_suffix)

#endif // SHARE_VM_OOPS_OBJARRAYKLASS_INLINE_HPP