1 /*
2 * Copyright (C) 2011 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_DLMALLOC_SPACE_INL_H_
18 #define ART_RUNTIME_GC_SPACE_DLMALLOC_SPACE_INL_H_
19
20 #include "dlmalloc_space.h"
21 #include "gc/allocator/dlmalloc.h"
22 #include "thread.h"
23
24 namespace art {
25 namespace gc {
26 namespace space {
27
AllocNonvirtual(Thread * self,size_t num_bytes,size_t * bytes_allocated,size_t * usable_size,size_t * bytes_tl_bulk_allocated)28 inline mirror::Object* DlMallocSpace::AllocNonvirtual(Thread* self, size_t num_bytes,
29 size_t* bytes_allocated,
30 size_t* usable_size,
31 size_t* bytes_tl_bulk_allocated) {
32 mirror::Object* obj;
33 {
34 MutexLock mu(self, lock_);
35 obj = AllocWithoutGrowthLocked(self, num_bytes, bytes_allocated, usable_size,
36 bytes_tl_bulk_allocated);
37 }
38 if (LIKELY(obj != nullptr)) {
39 // Zero freshly allocated memory, done while not holding the space's lock.
40 memset(obj, 0, num_bytes);
41 }
42 return obj;
43 }
44
AllocationSizeNonvirtual(mirror::Object * obj,size_t * usable_size)45 inline size_t DlMallocSpace::AllocationSizeNonvirtual(mirror::Object* obj, size_t* usable_size) {
46 void* obj_ptr = const_cast<void*>(reinterpret_cast<const void*>(obj));
47 size_t size = mspace_usable_size(obj_ptr);
48 if (usable_size != nullptr) {
49 *usable_size = size;
50 }
51 return size + kChunkOverhead;
52 }
53
AllocWithoutGrowthLocked(Thread *,size_t num_bytes,size_t * bytes_allocated,size_t * usable_size,size_t * bytes_tl_bulk_allocated)54 inline mirror::Object* DlMallocSpace::AllocWithoutGrowthLocked(
55 Thread* /*self*/, size_t num_bytes,
56 size_t* bytes_allocated,
57 size_t* usable_size,
58 size_t* bytes_tl_bulk_allocated) {
59 mirror::Object* result = reinterpret_cast<mirror::Object*>(mspace_malloc(mspace_, num_bytes));
60 if (LIKELY(result != nullptr)) {
61 if (kDebugSpaces) {
62 CHECK(Contains(result)) << "Allocation (" << reinterpret_cast<void*>(result)
63 << ") not in bounds of allocation space " << *this;
64 }
65 size_t allocation_size = AllocationSizeNonvirtual(result, usable_size);
66 DCHECK(bytes_allocated != nullptr);
67 *bytes_allocated = allocation_size;
68 *bytes_tl_bulk_allocated = allocation_size;
69 }
70 return result;
71 }
72
73 } // namespace space
74 } // namespace gc
75 } // namespace art
76
77 #endif // ART_RUNTIME_GC_SPACE_DLMALLOC_SPACE_INL_H_
78