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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "platform/assert.h" | |
6 #include "vm/utils.h" | |
5 #include "vm/virtual_memory.h" | 7 #include "vm/virtual_memory.h" |
Ivan Posva
2012/01/13 23:22:06
First.
Søren Gjesse
2012/01/16 08:58:00
Done.
| |
6 | 8 |
7 #include "vm/assert.h" | |
8 #include "vm/utils.h" | |
9 | |
10 namespace dart { | 9 namespace dart { |
11 | 10 |
12 VirtualMemory* VirtualMemory::ReserveAligned(intptr_t size, | 11 VirtualMemory* VirtualMemory::ReserveAligned(intptr_t size, |
13 intptr_t alignment) { | 12 intptr_t alignment) { |
14 ASSERT((size & (PageSize() - 1)) == 0); | 13 ASSERT((size & (PageSize() - 1)) == 0); |
15 ASSERT(Utils::IsPowerOfTwo(alignment)); | 14 ASSERT(Utils::IsPowerOfTwo(alignment)); |
16 ASSERT(alignment >= PageSize()); | 15 ASSERT(alignment >= PageSize()); |
17 VirtualMemory* result = VirtualMemory::Reserve(size + alignment); | 16 VirtualMemory* result = VirtualMemory::Reserve(size + alignment); |
18 uword start = result->start(); | 17 uword start = result->start(); |
19 uword real_start = (start + alignment - 1) & ~(alignment - 1); | 18 uword real_start = (start + alignment - 1) & ~(alignment - 1); |
(...skipping 11 matching lines...) Expand all Loading... | |
31 FreeSubSegment(address(), split); | 30 FreeSubSegment(address(), split); |
32 region_.Subregion(region_, split, size() - split); | 31 region_.Subregion(region_, split, size() - split); |
33 } | 32 } |
34 ASSERT(new_size <= size()); | 33 ASSERT(new_size <= size()); |
35 FreeSubSegment(reinterpret_cast<void*>(start() + new_size), | 34 FreeSubSegment(reinterpret_cast<void*>(start() + new_size), |
36 size() - new_size); | 35 size() - new_size); |
37 region_.Subregion(region_, 0, new_size); | 36 region_.Subregion(region_, 0, new_size); |
38 } | 37 } |
39 | 38 |
40 } // namespace dart | 39 } // namespace dart |
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