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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_RUNTIME_GC_SPACE_BUMP_POINTER_SPACE_INL_H_
#define ART_RUNTIME_GC_SPACE_BUMP_POINTER_SPACE_INL_H_
#include "bump_pointer_space.h"
namespace art {
namespace gc {
namespace space {
inline mirror::Object* BumpPointerSpace::AllocNonvirtualWithoutAccounting(size_t num_bytes) {
DCHECK(IsAligned<kAlignment>(num_bytes));
byte* old_end;
byte* new_end;
do {
old_end = end_;
new_end = old_end + num_bytes;
// If there is no more room in the region, we are out of memory.
if (UNLIKELY(new_end > growth_end_)) {
return nullptr;
}
// TODO: Use a cas which always equals the size of pointers.
} while (android_atomic_cas(reinterpret_cast<int32_t>(old_end),
reinterpret_cast<int32_t>(new_end),
reinterpret_cast<volatile int32_t*>(&end_)) != 0);
return reinterpret_cast<mirror::Object*>(old_end);
}
inline mirror::Object* BumpPointerSpace::AllocNonvirtual(size_t num_bytes) {
mirror::Object* ret = AllocNonvirtualWithoutAccounting(num_bytes);
if (ret != nullptr) {
objects_allocated_.fetch_add(1);
bytes_allocated_.fetch_add(num_bytes);
}
return ret;
}
} // namespace space
} // namespace gc
} // namespace art
#endif // ART_RUNTIME_GC_SPACE_BUMP_POINTER_SPACE_INL_H_
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