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Issue 2481873005: clang-format runtime/vm (Closed)
Patch Set: Merge Created 4 years, 1 month ago
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1 // Copyright (c) 2012, 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 "vm/virtual_memory.h" 5 #include "vm/virtual_memory.h"
6 6
7 #include "platform/assert.h" 7 #include "platform/assert.h"
8 #include "platform/utils.h" 8 #include "platform/utils.h"
9 9
10 namespace dart { 10 namespace dart {
11 11
12 bool VirtualMemory::InSamePage(uword address0, uword address1) { 12 bool VirtualMemory::InSamePage(uword address0, uword address1) {
13 return (Utils::RoundDown(address0, PageSize()) == 13 return (Utils::RoundDown(address0, PageSize()) ==
14 Utils::RoundDown(address1, PageSize())); 14 Utils::RoundDown(address1, PageSize()));
15 } 15 }
16 16
17 17
18 void VirtualMemory::Truncate(intptr_t new_size, bool try_unmap) { 18 void VirtualMemory::Truncate(intptr_t new_size, bool try_unmap) {
19 ASSERT((new_size & (PageSize() - 1)) == 0); 19 ASSERT((new_size & (PageSize() - 1)) == 0);
20 ASSERT(new_size <= size()); 20 ASSERT(new_size <= size());
21 if (try_unmap && 21 if (try_unmap &&
22 (reserved_size_ == size()) && /* Don't create holes in reservation. */ 22 (reserved_size_ == size()) && /* Don't create holes in reservation. */
23 FreeSubSegment(reinterpret_cast<void*>(start() + new_size), 23 FreeSubSegment(reinterpret_cast<void*>(start() + new_size),
24 size() - new_size)) { 24 size() - new_size)) {
25 reserved_size_ = new_size; 25 reserved_size_ = new_size;
26 } 26 }
27 region_.Subregion(region_, 0, new_size); 27 region_.Subregion(region_, 0, new_size);
28 } 28 }
29 29
30 30
31 VirtualMemory* VirtualMemory::ForExternalPage(void* pointer, uword size) { 31 VirtualMemory* VirtualMemory::ForExternalPage(void* pointer, uword size) {
32 // Memory for precompilated instructions was allocated by the embedder, so 32 // Memory for precompilated instructions was allocated by the embedder, so
33 // create a VirtualMemory without allocating. 33 // create a VirtualMemory without allocating.
34 MemoryRegion region(pointer, size); 34 MemoryRegion region(pointer, size);
35 VirtualMemory* memory = new VirtualMemory(region); 35 VirtualMemory* memory = new VirtualMemory(region);
36 memory->embedder_allocated_ = true; 36 memory->embedder_allocated_ = true;
37 return memory; 37 return memory;
38 } 38 }
39 39
40 } // namespace dart 40 } // namespace dart
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