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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ART_RUNTIME_GC_SPACE_ROSALLOC_SPACE_INL_H_
     18 #define ART_RUNTIME_GC_SPACE_ROSALLOC_SPACE_INL_H_
     19 
     20 #include "gc/allocator/rosalloc-inl.h"
     21 #include "rosalloc_space.h"
     22 #include "thread.h"
     23 
     24 namespace art {
     25 namespace gc {
     26 namespace space {
     27 
     28 inline size_t RosAllocSpace::AllocationSizeNonvirtual(mirror::Object* obj, size_t* usable_size) {
     29   void* obj_ptr = const_cast<void*>(reinterpret_cast<const void*>(obj));
     30   // obj is a valid object. Use its class in the header to get the size.
     31   // Don't use verification since the object may be dead if we are sweeping.
     32   size_t size = obj->SizeOf<kVerifyNone>();
     33   size_t size_by_size = rosalloc_->UsableSize(size);
     34   if (kIsDebugBuild) {
     35     size_t size_by_ptr = rosalloc_->UsableSize(obj_ptr);
     36     if (size_by_size != size_by_ptr) {
     37       LOG(INFO) << "Found a bad sized obj of size " << size
     38                 << " at " << std::hex << reinterpret_cast<intptr_t>(obj_ptr) << std::dec
     39                 << " size_by_size=" << size_by_size << " size_by_ptr=" << size_by_ptr;
     40     }
     41     DCHECK_EQ(size_by_size, size_by_ptr);
     42   }
     43   if (usable_size != nullptr) {
     44     *usable_size = size_by_size;
     45   }
     46   return size_by_size;
     47 }
     48 
     49 template<bool kThreadSafe>
     50 inline mirror::Object* RosAllocSpace::AllocCommon(Thread* self, size_t num_bytes,
     51                                                   size_t* bytes_allocated, size_t* usable_size) {
     52   size_t rosalloc_size = 0;
     53   if (!kThreadSafe) {
     54     Locks::mutator_lock_->AssertExclusiveHeld(self);
     55   }
     56   mirror::Object* result = reinterpret_cast<mirror::Object*>(
     57       rosalloc_->Alloc<kThreadSafe>(self, num_bytes, &rosalloc_size));
     58   if (LIKELY(result != NULL)) {
     59     if (kDebugSpaces) {
     60       CHECK(Contains(result)) << "Allocation (" << reinterpret_cast<void*>(result)
     61             << ") not in bounds of allocation space " << *this;
     62     }
     63     DCHECK(bytes_allocated != NULL);
     64     *bytes_allocated = rosalloc_size;
     65     DCHECK_EQ(rosalloc_size, rosalloc_->UsableSize(result));
     66     if (usable_size != nullptr) {
     67       *usable_size = rosalloc_size;
     68     }
     69   }
     70   return result;
     71 }
     72 
     73 }  // namespace space
     74 }  // namespace gc
     75 }  // namespace art
     76 
     77 #endif  // ART_RUNTIME_GC_SPACE_ROSALLOC_SPACE_INL_H_
     78