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Issue 10836061: Change the zone allocation api. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 8 years, 4 months 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/bitmap.h" 5 #include "vm/bitmap.h"
6 6
7 #include "platform/assert.h" 7 #include "platform/assert.h"
8 #include "vm/object.h" 8 #include "vm/object.h"
9 9
10 namespace dart { 10 namespace dart {
11 11
12 bool BitmapBuilder::Get(intptr_t bit_offset) const { 12 bool BitmapBuilder::Get(intptr_t bit_offset) const {
13 if (!InRange(bit_offset)) { 13 if (!InRange(bit_offset)) {
14 return false; 14 return false;
15 } 15 }
16 return GetBit(bit_offset); 16 return GetBit(bit_offset);
17 } 17 }
18 18
19 19
20 void BitmapBuilder::Set(intptr_t bit_offset, bool value) { 20 void BitmapBuilder::Set(intptr_t bit_offset, bool value) {
21 while (!InRange(bit_offset)) { 21 while (!InRange(bit_offset)) {
22 intptr_t new_size = size_in_bytes_ + kIncrementSizeInBytes; 22 intptr_t new_size = size_in_bytes_ + kIncrementSizeInBytes;
23 ASSERT(new_size > 0); 23 ASSERT(new_size > 0);
24 uint8_t* new_bit_list = reinterpret_cast<uint8_t*>( 24 uint8_t* new_bit_list =
25 Isolate::Current()->current_zone()->Allocate(new_size)); 25 Isolate::Current()->current_zone()->Alloc<uint8_t>(new_size);
26 ASSERT(new_bit_list != NULL); 26 ASSERT(new_bit_list != NULL);
27 ASSERT(bit_list_ != NULL); 27 ASSERT(bit_list_ != NULL);
28 uint8_t* old_bit_list = bit_list_; 28 uint8_t* old_bit_list = bit_list_;
29 memmove(new_bit_list, old_bit_list, size_in_bytes_); 29 memmove(new_bit_list, old_bit_list, size_in_bytes_);
30 memset((new_bit_list + size_in_bytes_), 0, kIncrementSizeInBytes); 30 memset((new_bit_list + size_in_bytes_), 0, kIncrementSizeInBytes);
31 size_in_bytes_ = new_size; 31 size_in_bytes_ = new_size;
32 bit_list_ = new_bit_list; 32 bit_list_ = new_bit_list;
33 } 33 }
34 SetBit(bit_offset, value); 34 SetBit(bit_offset, value);
35 } 35 }
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100 ASSERT(bit_list_ != NULL); 100 ASSERT(bit_list_ != NULL);
101 byte_addr = &(bit_list_[byte_offset]); 101 byte_addr = &(bit_list_[byte_offset]);
102 if (value) { 102 if (value) {
103 *byte_addr |= mask; 103 *byte_addr |= mask;
104 } else { 104 } else {
105 *byte_addr &= ~mask; 105 *byte_addr &= ~mask;
106 } 106 }
107 } 107 }
108 108
109 } // namespace dart 109 } // namespace dart
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